An agentic website checklist covers five layers. Readable and discoverable are the floor. The work that sells sits above them: exact answers for agents, booking and payment in the flow, and a person who gets the lead.
The agentic website checklist: what to ship at each layer, and who actually reads it today
Published October 16, 2026 · Last reviewed October 16, 2026
An agentic website checklist tests the five layers of a site that answers and sells to people and their AI agents: readable, discoverable, addressable, transactable and accountable. Most agent-readiness checklists, including the two on this blog, stop after the first two: clean HTML, a sitemap, schema, robots rules, maybe an llms.txt file. That work is real, and it is the floor. A checklist that ends there leaves out the part where a buyer’s assistant asks a question, gets a straight answer and books the call. We set out the five layers when we defined the agentic website on 14 October.
Each row below gives the effort, what you get once it passes and, the column most lists skip, who reads it today, with dated evidence. Where we found no reader, the row says “no confirmed reader yet” instead of guessing.
The first two layers get one line per check and a link to the longer guides. The rest goes to the three layers above them, where most sites probably have nothing and where a visiting agent decides whether to stay.
How to read this checklist
- Effort. S is an afternoon for one person, M is a sprint, L means new software or a vendor.
- What you get. What a person or a visiting agent can do once the check passes.
- Who reads it today. Evidence that something consumes the row, with a date. Counts of how many sites publish something are labelled as adoption, because a file on many sites does not prove that anything reads it.
Treat the layers as five gates, in order, and stop at the first one where your site goes silent. A cheap row with no confirmed reader can still be worth an afternoon; a row with a measured reader, such as pricing in plain text, earns its place even when the work is harder.
Readiness scores cover only part of this. Cloudflare’s Agent Readiness score grades four buckets (discoverability, content, bot access control, capabilities) and checks commerce standards without counting them,1 and its August dashboard update still treats commerce as informational.2 None of that asks whether an agent got the commercial answer it came for, or whether a person on your side heard about the visit; our piece on what to do after you pass the score covers that gap. Cloudflare argues that businesses easy for agents “to find, understand, and trust are the ones that get recommended.”2 That is a reasonable bet, not a measurement, and nothing on this list promises that an assistant will cite you. The checks aim at something easier to verify: when a person or their agent arrives, the site can answer, act and hand over the result.
Readable and discoverable: the floor
These two layers are covered in depth in our 2026 guide to making a website agent-ready and the agent-readiness audit checklist. Here they get one line each.
| Check | Effort | What you get | Who reads it today |
|---|---|---|---|
| Readable: key facts (prices, plans, service areas, hours) in plain HTML text, not in images, PDFs or scripts | S | An agent can quote the fact instead of guessing it | Every crawler and fetching agent. Many agent fetches never run JavaScript, so a price rendered client-side is invisible to them.3 The measured effect is in the pricing row under Addressable |
| Readable: markdown content negotiation | S to M | A lighter copy of each page; Cloudflare’s own post shrinks by 80%, from 16,180 tokens to 3,1504 | Coding agents such as Claude Code and OpenCode ask for it.4 Adoption: 3.9% of sites in Cloudflare’s April 2026 scan1 |
| Readable: llms.txt as a curated map of key pages | S | A short index of what matters | No confirmed reader among AI search products. Ahrefs: 97% of files got no requests in May 2026.5 Google Search ignores it6 |
| Discoverable: sitemap and schema.org markup | S | Pages found and typed | Search engines. Google says its AI features rest on its core Search systems and need no special schema markup6 |
| Discoverable: robots.txt rules per purpose, plus Content Signals | S | You say what crawlers may do with your content | robots.txt: compliant crawlers, on 78% of sites. Content Signals: on about 4%,1 no confirmed reader yet; Cloudflare calls them a stated preference, not a block7 |
| Discoverable: your stance on Cloudflare’s Search / Agent / Training split | S | Agents acting for a person are not blocked by accident | Cloudflare sites; new-domain presets since 15 September 20267 |
| Discoverable: verify signed agents with Web Bot Auth | M | Tell a real agent from a spoofed user agent | Signed requests from OpenAI, AWS and part of Google’s agent traffic; the protocol is still an IETF draft.8 Our explainer |
Discoverable: an A2A (Agent2Agent) agent card at /.well-known/agent-card.json | S, once you run an agent | Other agents learn what your agent does and how to reach it | Agent-to-agent tooling. Adoption: a floor of 421 of the 27,840 providers in the APIs.io catalog (1.5%), September 2026, with only about one in six checked9 |
Discoverable: an ARD catalog at /.well-known/ard.json that lists your MCP servers and agent cards | S, once you have them | Agents find all your agent-facing tools from one file | No confirmed reader yet. The spec is a v0.91 proposal with authors from Google and Hugging Face, dated 26 August 2026.10 Our ARD explainer predates the rename to ard.json |
Two rows need more than a table cell. On llms.txt, publishing is easy to measure and reading is not: SEOmator found a real file on 8.6% of Cloudflare Radar’s top 100,000 domains on 13 September 2026, nearly a third of them generated automatically by the site’s platform.11 Publish one because it is cheap, not as a step toward being cited; our read on whether llms.txt works goes through the studies.
On the crawler split, Cloudflare’s Agent category means automated traffic working in real time for a person. Since 15 September, a new domain that earns money from ads is offered a preset that blocks Agent crawlers on pages that show ads, while Search stays allowed and AI training is disallowed; existing settings carry over.7 If your site runs ads and you want buyers’ assistants to reach your pricing, check that setting. Chrome’s Lighthouse agentic browsing audit is a useful second opinion on both layers.
Addressable: can an agent get an exact answer?
The addressable layer is where a site stops being read and starts being asked. The test is simple: a buyer’s assistant has read your pages and wants to know whether the Team plan covers 30 seats, whether you integrate with HubSpot, or whether someone can start in November. Does anything on your side answer?
| Check | Effort | What you get | Who reads it today |
|---|---|---|---|
| Prices, plan limits and the pricing model stated as exact facts in text | S to M | Agents quote you instead of a directory | Measured: see below |
A live endpoint that answers follow-up questions (a site agent, or an NLWeb /ask endpoint) | L | Questions your pages do not cover get answered | Early; we know of no public count of sites with one |
| It answers only from your materials, and offers a call when it does not know | M | Fewer invented answers with your name on them | Your buyers. In two chatbot cases, a tribunal and a court held the business to what its bot said |
| A structured answer format for visiting agents, not only a chat widget built for humans | M | Assistants get facts in a form they can parse | No confirmed reader yet |
| A monthly test: give your own assistant a real buyer question about your site | S | You see what a buyer’s agent sees | You |
Pricing first, because it is the one row with hard data. In July 2026 Kevin Indig, working with Siteline founder David Kaufman, gave AI agents three buyer tasks for each of 100 B2B products, five runs per task. Agents answered pricing and feature questions from the vendor’s own site 79% of the time, the weakest of the three categories, against 93% for integrations and 92% for security. With no real price shown, the agent cited at least one third-party source in 45% of pricing runs, against 18% with a numeric price on the page.3 If your price lives behind “contact us”, a review site or a reseller may be answering for you. For custom tiers, the memo advises explaining what drives the price instead of offering only a contact-sales button, and a plain-text pricing model (“from $X per seat, annual billing, minimum Y seats”) does that while final quotes stay custom.
Then the endpoint. Pages answer the questions you predicted; an endpoint answers the ones you did not. It can be a site agent that talks with people and their assistants, or an NLWeb /ask endpoint, Microsoft’s open project that returns ranked, structured results for a plain-language question.12 We know of no public scan that counts either, which is also the opening: most sites in your category probably have nothing here. One draft to watch is the Personal Agent Protocol from Sierra and Meta. Its draft of 9 October has a company publish /.well-known/poppy.json to tell personal agents how to work with it, with OpenAI, Visa and PayPal among the listed design partners. Sierra has shown it live with Meta’s agent Muse, but we know of no production agent that reads it yet.13 Our explainer of the 6 October announcement covers the access model.
An agent that answers from your materials, and hands over to a person when it runs out, carries a different risk from one that improvises. Our read of the OLG Hamm and Moffatt chatbot cases shows a German court and a Canadian tribunal treating what a site’s chatbot says as what the business says.
This is the layer Tobira works on. Tobira Site Agent turns your website into an agentic site: it publishes the machine-readable files AI agents look for and gives them a live endpoint to ask and act, so the site is readable and addressable at once. Its product page lists “Site ready for AI agents” in the Lite plan, and every higher plan includes it; it says the agent answers only from your materials and offers a call when the answer is not there.14 As listed on tobira.ai/agentic-site/ on 16 October 2026, there is a free plan that runs on your own AI key, and paid plans at $49, $169, $399 and $799 a month (USD, excluding taxes), with no separate charge for agent traffic.14 The distinction from our readable vs addressable explainer still holds: the files describe the site, and the endpoint is what answers.
Transactable: can the visit end in a booking, a trial or a payment?
Picture an assistant that has confirmed your price and your HubSpot integration and now has to put a 30-minute demo into its user’s calendar for Tuesday. The transactable layer asks whether that can happen on your site while the buyer, or the assistant acting for them, is ready.
| Check | Effort | What you get | Who reads it today |
|---|---|---|---|
| A calendar inside the conversation: book the demo or consultation without a form and a callback | M | The meeting happens while intent is high | People today. Some assistants now schedule appointments on websites, mostly for paying US users, and pause on sensitive steps15 |
| A trial link or sign-up sent from the conversation, with the context attached | S to M | Self-serve buyers start without waiting for sales | People, and agents that can follow a link |
| A person can pay in the flow, and confirms the payment explicitly | M | Deposits, paid consultations and small orders close on the spot | People. The browser-agent flows we checked hand payment back to the human |
| WebMCP tools for your two or three key actions, as an experiment | M | An agent in the browser calls “book a demo” instead of guessing at buttons | Chrome and Edge origin trials, and Site tools in the ChatGPT desktop app’s built-in browser, subject to rollout. Neither Chrome nor Edge has shipped it to all users |
| Agent checkout and payment protocols (UCP, ACP, AP2, x402) | L | Agent checkout for catalog products and pay-per-request APIs | Mostly retail, catalog and API sellers; Google’s Universal Cart, a shopper’s cart rather than an agent, began rolling out in the US on 15 October and checks out over UCP. UCP’s hotel booking is a draft, and appointments are only a proposal16 |
Booking is the transaction for most B2B and services sites. You sell fit and scope, not a SKU, so the “purchase” is usually a qualified meeting, a paid consultation or a trial; that is why agentic commerce looks different for services, and why the calendar row matters more than any payment protocol. The reader is no longer only human. Google’s Chrome auto browse (in preview for US AI Pro and Ultra subscribers since January) and the Chrome browsing in Gemini Spark (rolling out first in the US since 30 July) have been used to schedule appointments and viewings on websites, and they pause before purchases and hand payments back to the user.15 For restaurants, bookings made in a chat mostly run through partner platforms, such as Yelp reservations in ChatGPT (US and Canada) or the partners Google’s AI Mode links to for the last step (UK).17 If your calendar sits on no such platform, the assistant has to work your own booking page, so keep it short and plain. It is also unlikely to wait for a callback, the argument of our piece on speed to lead when the buyer is an agent.
Payment rows need a person in the loop. Stripe’s WebMCP guide sets a hint on its payment-submission tools and tells agent builders to get the user’s confirmation before calling them; the hint itself is not confirmation.18 Build for that pattern: the agent prepares the order, the human approves it, and the site never assumes a visiting agent can pay on its own authority. Our agent payments explainer compares how AP2, ACP, x402 and MPP handle approval, including AP2’s signed mandates for spending agreed in advance, and our read of browser approval gates shows how thin some gates still are.
WebMCP is a row to try, not to depend on. It lets a page register tools through document.modelContext that an agent in the browser can call. The spec is a W3C Community Group draft, updated 15 October 2026, not a W3C Standard. Chrome runs it as an origin trial (an opt-in test) from Chrome 149 through 156, with a desktop extension to Chrome 162 filed on 28 September, and Edge 153 has its own trial.19 It also has a first agent reader: OpenAI describes Site tools, in the ChatGPT desktop app’s built-in browser, as its implementation of the proposed standard, with its usual confirmation rules for purchases.20 If your developers have a free week, wrap your booking and quote actions as tools and watch the logs; our July WebMCP adoption tracker lists the early sites. Otherwise the calendar row does more for you this quarter, and checkout protocols such as UCP and ACP, built around a product, a price and a cart, can wait unless you sell from a catalog.
Accountable: does a person get the lead, with context and consent?
The fifth layer is the one infrastructure checklists leave out, and the one a business owner cares about most. When an assistant books a demo for its human, who on your side knows, and what do they know?
| Check | Effort | What you get | Who reads it today |
|---|---|---|---|
| Handoff to a person at the right moment, with the conversation attached | M | Hard cases reach someone who can decide | Your team |
| An owner summary for each lead: who it is, what they need, what was booked or paid | S to M | Sales starts the call informed, not cold | Your team |
| Leads tagged by source, including “came through an AI assistant” where the visit says so | S to M | You can see which channel sells | Your team and your analytics |
| Contact details shared only when the visitor agrees | M | No surprise follow-ups, cleaner consent records | Your visitors, and data protection rules |
| A written rule set: what the agent must never promise, never reveal, and always route to a person | S | The agent stays inside what you would say yourself | Your agent, every conversation |
| A clear notice that visitors are talking to an AI | S | Trust, and compliance where it is required | Visitors; in the EU, the AI Act |
The summary row is the cheapest test of the whole layer. If a lead arrives as a 40-message transcript, nobody reads it, and the visit might as well not have happened. Tobira’s product page makes the same point: the owner gets a short summary instead of the transcript, covering who it is, what they need and what was booked or paid.14 Whatever tool you use, ask for that shape.
Source tagging is how you learn whether any of this works, and the early numbers disagree. Orbit Media’s study of 97 B2B sites found visitors from AI three times as likely as other organic visitors to become leads, though they were just 0.5% of sessions; Ruler Analytics, across 13 industries, found AI referrals averaging 5.8%, above organic search overall (4.9%), but below it in professional services (6.0% against 8.1%) and level with it in software (7.9% for both).21 Orbit also notes that AI mobile apps often strip the referrer, so those visits land in Direct, and many agent visits are crawlers rather than buyers, as our AI agent traffic statistics for 2026 show. Tag leads by what the conversation says, not only by the referrer, and after a quarter compare their close rate with your other channels.
Consent and rules can share a page. A visiting agent may hold its human’s name, email and budget, so an accountable site asks before it stores or forwards contact details and records that it asked, the logic of the consent layer for the agentic web. The rule set needs three lists: what the agent never promises (discounts, delivery dates, legal or medical conclusions), never reveals (internal notes, other clients, anything not public) and always routes to a person (contracts, complaints, deals above a set size).
The AI notice is a legal row in the EU. Since 2 August 2026, Article 50(1) of the AI Act has required providers of AI systems that talk directly with people to design them so that people are told they are dealing with an AI, unless that is obvious.22 If you deploy a vendor’s chatbot, check that the notice appears from the first message; if you build your own, you may be the provider. In the US, California’s bot law makes disclosure the safe course for a bot used to sell, and Maine has required a clear notice since September 2025 where a consumer could mistake an AI chatbot for a person.23 Our explainer on the August deadline covers the EU side.
What WordPress, Wix, Webflow and Hostinger now ship, by layer
If your site runs on a mainstream platform, some rows above may already be a toggle. Here is what four of them ship as of mid-October 2026, read against the five layers.
WordPress. WordPress 7.0 “Armstrong” (20 May 2026) added an AI Client and a Connectors screen to core, alongside the Abilities API from 6.9, which lets core and plugins register what a site can do in a machine-readable way; 7.1 (19 August 2026) added a single flag that marks an ability public for outside clients.24 The separate MCP Adapter plugin from the AI Building Blocks initiative exposes those abilities as tools, resources and prompts to clients that speak MCP, the Model Context Protocol.25 Abilities are private by default, so a plugin that registers “book an appointment” must also mark it public, and its permission checks still apply. Today this mostly serves the owner’s own assistants and developer tools, not a visiting buyer’s assistant.
Wix. With Microsoft, Wix lets owners connect a site to NLWeb in one click, starting with premium domains in English-language markets.26 AI systems can then query the site’s public structured content (schema markup, product feeds, RSS) through an ask endpoint, without any change to how search engines crawl or rank the site. Wix also says every site is its own MCP server at /_api/mcp, through which a visitor’s AI tool can ask about the business, make a booking or buy items.27 That reaches into the transactable layer, but only for visitors who connect an MCP-capable tool, and we found no data on how many do. Rules on what the agent may promise, the handoff and an owner summary are still separate work.
Webflow. At Webflow Conf (1 to 3 September 2026), Webflow said Agent Instructions can now be generated automatically. They are skills and rules, stored as markdown, that tell an agent connected through Webflow’s MCP server how to structure content, apply the design system or follow team conventions: help for agents that build your site, close in spirit to AGENTS.md for coding agents, not for a visiting buyer’s assistant. For visitors, Webflow offers Markdown for AI agents on Enterprise sites (since 2 April 2026) and an llms.txt upload, both readable-layer rows.28
Hostinger. Web2Agent is an experimental Hostinger feature for WordPress sites and some AI Builder sites it hosts. It syncs site content to a service that MCP clients can query, and Hostinger says it “currently works best with Claude, Cursor and tools supporting MCP protocol,” with ChatGPT, Gemini and other agents still in progress.29 Like the Wix option, it makes content askable. It does not decide what the agent should never promise, book the meeting or tell your team who came.
Across all four, most platform work sits on the content side or the owner’s side, with Wix’s MCP bookings as the exception to watch. Whether a buyer’s agent gets an exact price, books a call, pays with the human’s approval and reaches a person with a summary still depends on the addressable, transactable and accountable layers.
What to remember
- An agentic website answers and sells to people and their AI agents. Its checklist has five layers: readable, discoverable, addressable, transactable, accountable.
- Readable and discoverable are the floor that readiness scores grade. Do them because they are cheap, and treat adoption as adoption: llms.txt sits on 8.6% of the top 100,000 domains, yet Ahrefs found 97% of files got no requests.
- Pricing is the row with the clearest data: with no real price on the page, agents cited a third party in 45% of pricing runs, against 18% with one.
- For B2B and services, the transaction is a booked meeting or a trial. Put the calendar in the conversation, keep answers to your own materials, and let the human confirm any payment.
- Accountable means a summary for a person, leads tagged by what the conversation says, consent before contact details move, a written rule set and a clear AI notice.
- Platforms now make content queryable, and Wix says visitors’ MCP tools can book. What your agent may promise and who on your team gets the lead are still your decisions.
We cannot show that ticking these rows gets a site cited, and we have not found anyone who can. The rows that end in a booked call do not need that proof.
FAQ
What is an agentic website checklist? It is a list of checks for a website that answers and sells to people and their AI agents. It covers five layers: readable, discoverable, addressable, transactable and accountable. Unlike a basic agent-readiness list, it goes past files and markup to whether an agent can get an exact answer, finish a booking or payment with the human’s approval, and whether a person on your side gets the lead.
How is it different from an agent-ready website checklist? An agent-ready checklist, like Cloudflare’s Agent Readiness score, mostly grades whether agents can find, fetch and parse your site. That is the first two layers here. The agentic website checklist adds the layers above: a live endpoint that answers questions, booking and payment in the flow, and the handoff, summary and consent rules that make the result reach a person.
Will publishing llms.txt or agent files get my site recommended by ChatGPT? We know of no evidence that it does. Ahrefs found that 97% of the llms.txt files in its May 2026 sample received no requests at all, and Google’s Search guidance says Google Search ignores such files. They are cheap to publish and harmless. What the evidence does show is that agents cite third-party sources more often when a real price is missing from your site.
What should a B2B website fix first? State prices, plan limits and the pricing model in plain text, because agents fall back to third-party sources much more often when no real price is shown. Then add a way to answer follow-up questions and book a demo inside the conversation, with a summary that reaches your sales team. WebMCP tools and agent checkout protocols can come later.
Can an AI agent pay on my website? An agent can prepare an order or a booking, but the browser-agent flows we checked (Chrome auto browse, Gemini Spark, ChatGPT Site tools, Stripe’s WebMCP guide) hand the payment to the human it acts for. Stripe’s guide, for example, marks its payment-submission tools with a hint and tells agent builders to get the user’s confirmation first. Design your flow so a person approves the payment, whatever the assistant.
Do WordPress, Wix, Webflow or Hostinger make my site agentic automatically? Partly. Wix’s NLWeb option and Hostinger’s Web2Agent make content queryable by AI tools, and Wix also lets MCP-connected tools make bookings and purchases. WordPress’s MCP Adapter can expose actions that plugins register and mark public, and Webflow’s Agent Instructions guide agents that build your site. None of them decides what your agent may promise, hands a lead to a person with the context attached or tells your team who came. Those rows are still yours.
Footnotes
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Cloudflare blog, “Introducing the Agent Readiness score,” April 17, 2026. The score covers four dimensions (discoverability, content, bot access control, capabilities); commerce standards such as x402, UCP and ACP are checked but do not count toward it. Radar scanned the 200,000 most visited domains after filtering out categories such as redirects, ad servers and tunnelling services: robots.txt on 78% of sites, Content Signals (AI usage preferences declared in robots.txt) on 4%, markdown content negotiation on 3.9%, MCP Server Cards and API Catalogs together on fewer than 15 sites. https://blog.cloudflare.com/agent-readiness/ ↩ ↩2 ↩3
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Cloudflare blog, “From ranking to recommended: get your site ready to thrive in the age of AI agents,” August 6, 2026. The Agent Readiness checks moved into the dashboard, grouped by effort into quick wins, technical groundwork, advanced integration and commerce, with commerce informational and outside the score; site owners can request early access to AEO Visibility. https://blog.cloudflare.com/aeo/ ↩ ↩2
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Kevin Indig, with David Kaufman, founder of Siteline, “Where AI agents get stuck on your site,” Growth Memo, July 13, 2026. Agents got three buyer tasks for each of 100 B2B products, and each task ran five times. First-party answer rate: 79% for pricing and features, 93% for integrations, 92% for security and compliance. Among pricing runs where the vendor disclosed no real price, 45% cited at least one third-party source, against 18% when a numeric price was shown. The memo also notes that many agent fetches never run JavaScript, so a price rendered client-side is invisible to them. https://www.growth-memo.com/p/where-ai-agents-get-stuck-on-your ↩ ↩2
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Cloudflare blog, “Introducing Markdown for Agents,” February 12, 2026: the post itself is 16,180 tokens as HTML and 3,150 as markdown, a reduction of 80%, and coding agents including Claude Code and OpenCode already send markdown accept headers. https://blog.cloudflare.com/markdown-for-agents/ ↩ ↩2
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Ahrefs, llms.txt study, published June 15, 2026: of the 137,210 domains in Ahrefs Web Analytics with traffic in May 2026, 28% published an llms.txt file, a share Ahrefs treats as an upper bound; of the roughly 38,000 domains with a valid file, 97% saw no requests for it in May, from bots or humans. Ahrefs notes that its sample skews toward technical, SEO-aware sites. https://ahrefs.com/blog/llmstxt-study/ ↩
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Google Search Central, AI optimization guide, last updated July 10, 2026: Google Search does not use llms.txt or similar AI text files, and creating them “will neither harm nor help” visibility in Google Search; the generative AI features in Search are rooted in its core ranking and quality systems, and they need no special schema.org markup. https://developers.google.com/search/docs/fundamentals/ai-optimization-guide ↩ ↩2
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Cloudflare blog, “Your site, your rules: new AI traffic options for all customers,” July 1, 2026: defines Search, Agent (automated traffic acting in real time on a person’s behalf) and Training, and describes Content Signals as an owner’s preference rather than a block. https://blog.cloudflare.com/content-independence-day-ai-options/ ; Cloudflare blog, “Have it both ways: stay discoverable in search while disallowing AI training,” September 15, 2026: from September 15, a new domain is offered one of two onboarding presets; a site that earns money from ads gets Search allowed, the Disallow AI Training setting and Agent blocked on pages with ads, a site without ads gets all three allowed, and existing settings carry over. https://blog.cloudflare.com/accountable-mixed-use-ai-crawlers/ ↩ ↩2 ↩3
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Cloudflare blog, “The Internet has a second audience,” September 30, 2026: operators including OpenAI, Google and AWS sign their agents’ requests with Web Bot Auth. https://blog.cloudflare.com/agentic-web/ ; Google Crawling documentation, Web Bot Auth, last updated October 13, 2026: a subset of Google-Agent requests are signed, and Google describes its implementation as experimental. https://developers.google.com/crawling/docs/crawlers-fetchers/web-bot-auth ; IETF, draft-ietf-webbotauth-httpsig-protocol-00, September 1, 2026, a working-group Internet-Draft, not an RFC. https://datatracker.ietf.org/doc/draft-ietf-webbotauth-httpsig-protocol/ ↩
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Kin Lane, API Evangelist, “A2A Adoption Is 421 of 27,840, and Most of Them Arrived With the Card,” September 21, 2026: 421 of the 27,840 providers in the APIs.io catalog serve an A2A agent card from their own host, about 1.5% of the catalog; only 4,718 providers had been probed, so Lane treats 421 as a floor (about 7.5% of those probed), and most of them joined the catalog with a card already in place. https://apievangelist.com/2026/09/21/a2a-adoption-is-421-of-27840-and-most-of-them-arrived-with-the-card/ ↩
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Agentic Resource Discovery specification, v0.91, status Proposal, August 26, 2026, by authors from Google and Hugging Face: the manifest lives at
/.well-known/ard.json, and publishers still on the older/.well-known/ai-catalog.jsonpath are told to move. https://agenticresourcediscovery.org/spec/ ↩ -
SEOmator, llms.txt adoption study, measured September 13, 2026: 8,598 of Cloudflare Radar’s top 100,000 domains (8.6%) served a real llms.txt file at the root, 11.4% of the 75,353 domains that responded; nearly a third of the files were generated automatically by the site’s platform. https://seomator.com/blog/llms-txt-adoption ↩
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Microsoft, “Introducing NLWeb,” May 19, 2025, https://news.microsoft.com/source/features/company-news/introducing-nlweb-bringing-conversational-interfaces-directly-to-the-web/ ; NLWeb REST API documentation (“NLWeb supports 2 APIs at the endpoints /ask and /mcp”), https://github.com/microsoft/NLWeb/blob/main/docs/nlweb-rest-api.md ↩
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Sierra, “Sharing a draft of Personal Agent Protocol,” October 9, 2026: a company publishes one file at
/.well-known/poppy.jsonthat tells personal agents how to interact with it, how customers sign in and what the agent can do; the listed design partners include OpenAI, PayPal, Visa, Mastercard and Cloudflare; at Sierra Summit, Rocket showed Meta’s agent Muse finding Rocket’s agent through the protocol. https://sierra.ai/blog/poppy ; protocol version 0.1, marked as a draft, https://personalagentprotocol.org/ ↩ -
Tobira Site Agent product page, as listed on tobira.ai/agentic-site/ on October 16, 2026: the agent answers from the owner’s materials and, when the answer is missing, offers a call instead of guessing; the agent-readiness feature quoted above is part of the Lite plan, and each higher plan includes everything in the plan below it; a Free plan runs on your own AI (connect an OpenAI or OpenRouter key, or your own agent); Lite $49, Start $169, Business $399, Premium $799 per month, USD excluding taxes; people and their AI agents are covered by one plan, with no separate bill for agent traffic; the owner gets a short summary in WhatsApp, Telegram or email (who it is, what they need, what was booked or paid) instead of the transcript. https://tobira.ai/agentic-site/ ↩ ↩2 ↩3
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Google, “Chrome gets new Gemini 3 features, including auto browse,” January 28, 2026: auto browse for AI Pro and Ultra subscribers in the US; testers used it for tasks including scheduling appointments and filling out online forms, and it is designed to pause and ask for confirmation before tasks such as purchases. https://blog.google/products-and-platforms/products/chrome/gemini-3-auto-browse/ ; Google, “Gemini Spark: new Chrome browsing integration,” July 30, 2026: with permission, Spark handles web errands such as scheduling viewings for saved apartments and starting a flight booking, hands sensitive actions such as payments back to the user; the Chrome browsing capability is rolling out first in the US, while Spark itself expanded to more countries the same day. https://blog.google/innovation-and-ai/products/gemini-app/gemini-spark-updates-july-2026/ ↩ ↩2
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Universal Commerce Protocol documentation, core concepts (checkout, cart, catalog and order capabilities, plus lodging booking), https://ucp.dev/documentation/core-concepts/ ; UCP lodging booking specification, marked as a draft work in progress, https://ucp.dev/draft/specification/lodging/booking/ ; UCP GitHub issue #922, “[DTC Charter]: Local Services,” a proposal covering appointments, reservations and rentals, opened October 9, 2026 and still open on October 16, https://github.com/Universal-Commerce-Protocol/ucp/issues/922 ; Google, “Google’s new Universal Cart launches today in the U.S.,” October 15, 2026: a cart across retailers in Google Search and the Gemini app, with checkout powered by UCP and the merchant as seller of record, https://blog.google/products-and-platforms/products/shopping/universal-cart-launch/ ↩
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Yelp, “Yelp Brings Reservations and Waitlist to ChatGPT,” August 10, 2026: ChatGPT users can book a table or join a waitlist through Yelp at restaurants across the US and Canada without leaving the chat. https://blog.yelp.com/news/yelp-chatgpt-integration/ ; Google, “Use Google Search AI Mode to book restaurants in the UK,” April 10, 2026: AI Mode shows options with direct links to finish the booking through partners such as TheFork, SevenRooms, ResDiary and OpenTable. https://blog.google/company-news/inside-google/around-the-globe/google-europe/united-kingdom/ai-mode-restaurants-uk/ ↩
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Stripe Docs, “Use WebMCP to complete Stripe payments in a browser,” read October 16, 2026, labelled an experimental capability: Stripe sets the WebMCP
consequentialHintoption on payment-submission tools and tells agent builders to get the user’s confirmation before calling them, adding that the hint itself is not confirmation. https://docs.stripe.com/agentic-commerce/agents/webmcp ↩ -
W3C Web Machine Learning Community Group, WebMCP Draft Community Group Report, October 15, 2026 (not a W3C Standard, not on the Standards Track), https://webmachinelearning.github.io/webmcp/ ; Chrome Platform Status, WebMCP entry: origin trial Chrome 149 to 156, with a desktop extension stage to Chrome 162 added September 28, 2026, https://chromestatus.com/feature/5117755740913664 ; blink-dev, “Intent to Extend Experiment: WebMCP,” September 28, 2026, https://www.mail-archive.com/blink-dev@chromium.org/msg17568.html ; Microsoft Edge 153 web platform release notes, September 10, 2026 (WebMCP listed among origin trials), https://learn.microsoft.com/en-us/microsoft-edge/web-platform/release-notes/153 ↩
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OpenAI, ChatGPT documentation, “Site tools,” read October 16, 2026: Site tools are ChatGPT’s implementation of the proposed WebMCP standard and work in the built-in browser of the ChatGPT desktop app; a site registers tools with JavaScript in the top-level page; normal confirmation policies still apply to consequential actions such as purchases; Enterprise admins must allow the feature, and it is not available in Edu workspaces. https://learn.chatgpt.com/docs/webmcp ↩
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Andy Crestodina, Orbit Media, “AI Traffic Conversion Rates: New Research from 97 B2B Websites and 29M visits,” July 22, 2026, updated August 18: GA4 data from 97 B2B and lead-generation sites, July 1, 2025 to June 30, 2026, 28.9 million sessions; AI sources were 0.5% of traffic, and their visitors were three times as likely as other organic traffic to convert into leads (high-intent actions such as contact forms, demo and quote requests); AI mobile apps often strip the referrer. https://www.orbitmedia.com/blog/conversion-rates-ai-search/ ; Ruler Analytics, conversion rate by industry, May 26, 2026: more than 110 million sessions and 5 million conversions across 13 industries, with a conversion counted as a qualified lead or sale; AI referrals averaged 5.8% against 4.9% for organic search; in professional services AI converted at 6.0% against 8.1% for organic search, and in software both converted at 7.9%. https://www.ruleranalytics.com/blog/insight/conversion-rate-by-industry/ ↩
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EU Artificial Intelligence Act, Article 50(1): providers must ensure that AI systems intended to interact directly with natural persons are designed so that the people concerned are informed they are interacting with an AI system, unless this is obvious. https://artificialintelligenceact.eu/article/50/ ; European Commission, FAQ on the transparency obligations under Article 50: Article 50 applies from August 2, 2026, and the limited grace period to December 2, 2026 covers only the marking of generative output by systems already on the market. https://digital-strategy.ec.europa.eu/en/faqs/transparency-obligations-under-article-50-ai-act ↩
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California Business and Professions Code § 17941, in force since July 1, 2019: it is unlawful to use a bot to mislead a person in California about its artificial identity in order to incentivize a sale, and a person who discloses that it is a bot is not liable under the section. https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=BPC§ionNum=17941 ; Maine LD 1727, “An Act to Ensure Transparency in Consumer Transactions Involving Artificial Intelligence,” effective September 24, 2025, requiring AI disclosure in trade or commerce where a reasonable consumer could be misled into thinking they are dealing with a human, as listed in the state table of Fenwick’s alert “The Chatbot Compliance Wave: California’s New Law Is Not the Only One to Watch” (October 7, 2026), which credits the Future of Privacy Forum’s 2026 chatbot legislation tracker. https://www.fenwick.com/insights/publications/chatbot-compliance-wave-californias-new-law-not-only-one-watch ↩
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WordPress.org News, “WordPress 7.0 ‘Armstrong’,” May 20, 2026 (an AI Client in core, combined with the Abilities API, and a Connectors screen for external connections), https://wordpress.org/news/2026/05/armstrong/ ; Make WordPress Core, “Abilities API in WordPress 6.9,” November 10, 2025, https://make.wordpress.org/core/2025/11/10/abilities-api-in-wordpress-6-9/ ; WordPress.org News, WordPress 7.1 “Mary Lou,” August 19, 2026, https://wordpress.org/news/2026/08/mary-lou/ ; Make WordPress Core, “A unified public exposure flag for abilities in WordPress 7.1,” August 4, 2026 (the flag defaults to false), https://make.wordpress.org/core/2026/08/04/a-unified-public-exposure-flag-for-abilities-in-wordpress-7-1/ ↩
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Make WordPress AI, “MCP Adapter,” July 17, 2025, https://make.wordpress.org/ai/2025/07/17/mcp-adapter/ ; MCP Adapter plugin on WordPress.org, part of the AI Building Blocks for WordPress initiative, version 0.7.0, updated October 2, 2026, https://wordpress.org/plugins/mcp-adapter/ ; MCP Adapter README (abilities are exposed as MCP tools, resources and prompts; they are private by default until
meta.publicopts them in), https://github.com/WordPress/mcp-adapter ↩ -
Wix press release, “Wix Collaborated with Microsoft to Enable Users to Connect their Sites to NLWeb Directly from their Wix Dashboards, Making Wix Sites Agentic-Optimized,” March 25, 2026: at launch, a single-click opt-in for “Wix users with premium domains in English language markets,” with a global rollout to follow in the coming months. https://www.wix.com/press-room/home/post/wix-collaborated-with-microsoft-to-enable-users-to-connect-their-sites-to-nlweb-directly-from-their ; Wix Help Center, “Enabling NLWeb for AI agent access” (requires an upgraded site and a connected domain; draws on schema markup, product feeds and RSS; offers an MCP URL; does not change how search engines crawl or rank the site), https://support.wix.com/en/article/enabling-nlweb-for-ai-agent-access ↩
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Wix Help Center, “AI Tools: Connecting Wix Sites to AI Platforms,” read October 16, 2026: every Wix site is its own MCP server at
<your-site.com>/_api/mcp, with no extra setup, and visitors can use AI tools that support MCP to ask about hours and offerings, make a booking or purchase items. https://support.wix.com/en/article/ai-tools-connecting-wix-sites-to-ai-platforms ↩ -
Webflow, “The biggest announcements from Webflow Conf 2026,” September 2, 2026 (Agent Instructions generated automatically from a site’s existing context, rolling out from that day), https://webflow.com/blog/webflow-conf-2026-announcements ; Webflow Conf ‘26 event page (September 1 to 3, 2026), https://community.webflow.com/events/post/webflow-conf-26-september-1-3-2026---boston-online-p8dqiHh6obgwvdn ; Webflow University glossary, “Agent instructions,” https://university.webflow.com/glossary/agent-instructions ; Webflow updates, “Markdown for AI agents,” April 2, 2026 (Enterprise sites), https://webflow.com/updates/markdown-for-agents ; Webflow updates, llms.txt upload in SEO settings, July 23, 2025, https://webflow.com/updates/introducing-llmstxt ↩
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Hostinger Help Center, “Web2Agent in Hostinger,” last modified August 28, 2026: an experimental feature developed and operated by Hostinger, for WordPress and AI Builder sites, that keeps an MCP endpoint in sync with the site’s content; integrations with ChatGPT, Gemini and other agents are in progress. https://www.hostinger.com/support/11729400-web-2-agent-in-hostinger/ ; product page https://www.hostinger.com/web2agent ↩