--- title: "Tesco: the 360 check | Agent Ready Checklist" description: "Tesco on Ora's agent-readiness scan, read 2026-11-09: 30 of 100, grade D. 2 of 18 checklist rows met, 13 not met. One company a day." canonical: https://agentreadychecklist.com/blog/tesco-agent-readiness site: "Agent Ready Checklist" last_updated: 2026-11-09 date: 2026-11-09 section: "360 checks" --- # Tesco: the 360 check | Agent Ready Checklist > Tesco on Ora's agent-readiness scan, read 2026-11-09: 30 of 100, grade D. 2 of 18 checklist rows met, 13 not met. One company a day. Source: https://agentreadychecklist.com/blog/tesco-agent-readiness Site: Agent Ready Checklist Last reviewed: 2026-11-09 Agent endpoints: https://agentreadychecklist.com/llms.txt (index), https://agentreadychecklist.com/openapi.json (API), https://agentreadychecklist.com/mcp (MCP server), https://agentreadychecklist.com/ask (search) Access: https://agentreadychecklist.com/auth.md (no key). Pricing: https://agentreadychecklist.com/pricing.md (free). # Tesco against the checklist: the 360 agent-readiness check 360 check, 9 November 2026. Tesco is Britain's largest grocer. Tesco scores 30 of 100 on Ora's agent-readiness scan, a D, read 9 November 2026. At the door, bot management challenged ChatGPT-User, OAI-SearchBot, Claude-User, PerplexityBot. 2 of the 18 checklist rows with an Ora check are met. A challenge page for every agent, and a staff login mistaken for a developer portal. On 9 November 2026 the public site at tesco.com scored **30 of 100** on [Ora's](https://ora.ai/?utm_source=agentreadychecklist.com&utm_medium=referral&utm_campaign=check) agent-readiness scan, a D. Ora probes a site the way an agent would: it requests pages with the agents' own user agents, reads robots.txt, looks for the files agents read, and tries the API, MCP and payment surfaces. Below, each of the 31 checklist rows is read against the Ora checks the [crosswalk](https://agentreadychecklist.com/checklist/ora-checks/) names for it, so the result says which requirements this company meets, not only how many points it scored. Ora's one-line summary: Tesco blocks agents at the WAF: homepage requires security challenge, no OpenAPI spec, and no MCP server or manifest available. ## The score | Layer | Points | Share | What the layer asks | | --- | --- | --- | --- | | Discovery | 9 of 12 | 75% | Can agents find and recommend it | | Access | 10 of 47 | 21% | Can agents read it | | Usability | 8 of 58 | 14% | Can agents use it | | Payments | 0 of 0 | none apply | Can agents pay | | Total | 30 of 100 | 30% | Grade D | ## Row by row A row is met when every Ora check the crosswalk names for it passes, not met when every one fails, and partly when the checks disagree or one is partial. A row with no Ora check in the catalogue, or whose checks did not apply to this site, is marked as such; the [Verify Kit](https://agentreadychecklist.com/kit/) tests those by hand. | Row | Level | Result | Ora checks, and what Ora saw | | --- | --- | --- | --- | | AR-FIND-01; Do not block agents | MUST | Partly | robots.txt AI crawler policy (not applicable), robots.txt agent-user policy (not applicable), Agent crawler reachability (partial), Not blocked by bot detection (partial).; Bot management challenged ChatGPT-User, OAI-SearchBot, Claude-User, PerplexityBot - a challenge is an identity check verified crawlers pass, so reachability is undetermined rather than blocked (ChatGPT-User: challenged, | | AR-FIND-02; Answers on one first-party page | SHOULD | No Ora check | No check in Ora's catalogue names this row. | | AR-FIND-03; Sitemap listed in robots.txt | SHOULD | Not met | Sitemap exists (fail).; No sitemap found | | AR-FIND-04; AI Catalog at .well-known | MAY | Not met | AI Catalog discovery (not applicable), ARD discovery (fail).; No /.well-known/ard.json, no same-site rel="ard" link, and no legacy /.well-known/ai-catalog.json | | AR-READ-01; Answer in the initial HTML | MUST | Partly | Content without JavaScript (partial).; Homepage blocked by WAF/security challenge - content not accessible to agents | | AR-READ-02; Real HTTP status codes | MUST | No Ora check | Redirect hygiene (not applicable). | | AR-READ-03; Home page with real links | SHOULD | Met | Public API/docs linked from homepage (pass).; Documentation site found at https://login.ourtesco.com | | AR-READ-04; Docs that answer agent tasks | SHOULD | No Ora check | No check in Ora's catalogue names this row. | | AR-READ-05; Fenced, language-tagged code | SHOULD | No Ora check | Code fence validity (not applicable). | | AR-READ-06; Link the discovery files | SHOULD | No Ora check | No check in Ora's catalogue names this row. | | AR-READ-07; Ship llms.txt | SHOULD | Not met | llms.txt exists (fail), llms.txt formatting (fail), llms.txt links resolve (not applicable).; No llms.txt found at /llms.txt or /.well-known/llms.txt. | | AR-READ-08; JSON-LD on key pages | SHOULD | Not met | JSON-LD structured data (fail).; No JSON-LD structured data found on homepage | | AR-READ-09; Advertise a markdown mirror | MAY | No Ora check | Markdown alternate link (not applicable). | | AR-READ-11; Pricing as first-party HTML | SHOULD | No Ora check | Pricing info accessible (not applicable). | | AR-ACT-01; Auth an agent can finish | SHOULD | Not met | OAuth 2.0 support (fail), Scoped permissions (fail).; No OAuth 2.0 or OpenID Connect support detected | | AR-ACT-02; OpenAPI contract | SHOULD | Not met | OpenAPI spec published (fail).; No OpenAPI/Swagger specification found | | AR-ACT-03; MCP over Streamable HTTP | SHOULD | Not met | MCP server / manifest (fail), Listed in MCP registries (not applicable), MCP PKCE S256 support (not applicable), MCP OAuth metadata (not applicable).; No MCP server or manifest found | | AR-ACT-04; MCP server card | MAY | Not met | MCP server-card.json (fail).; No MCP server card found (checked /.well-known/mcp/server-card.json, the site's ai-catalog.json, servers[].card in mcp.json, and /server-card) | | AR-ACT-05; MCP Apps view | MAY | No Ora check | MCP Apps support (not applicable). | | AR-ACT-06; SDKs and a CLI | SHOULD | Partly | CLI tool available (fail), Multi-language SDK packages (partial), NPM/PyPI SDK package (pass).; No CLI tool found | | AR-ACT-07; WebMCP tools | SHOULD | Not met | WebMCP support (fail).; No WebMCP support detected - no document.modelContext / navigator.modelContext usage found | | AR-ACT-08; Agent payments | MAY | No Ora check | x402 payment protocol (not applicable), MPP payment protocol (not applicable), UCP - Universal Commerce Protocol (not applicable), ACP - Agentic Commerce Protocol (not applicable), ACP delegate payment (not applicable). | | AR-ACT-09; NLWeb /ask endpoint | MAY | Met | NLWeb /ask endpoint (pass).; NLWeb /ask endpoint exists but requires authentication (HTTP 403, via GET) | | AR-ACT-10; An MCP server or a CLI | MUST | Not met | MCP server / manifest (fail), CLI tool available (fail).; No MCP server or manifest found | | CF-CONTENT-SIGNALS; Content-Signal line | cloudflare | No Ora check | No check in Ora's catalogue names this row. | | CF-MARKDOWN-NEGOTIATION; Markdown by Accept | cloudflare | Not met | Markdown content negotiation (acceptmarkdown.com) (fail), Markdown agent docs (fail).; Homepage https://tesco.com does not meet the Markdown negotiation requirements: Accept: text/markdown returned text/html; Vary header missing Accept (got "none") | | CF-PAY-PER-CRAWL; Pay per crawl, HTTP 402 | cloudflare | No Ora check | No check in Ora's catalogue names this row. | | CF-OAUTH-DISCOVERY; OAuth discovery files | cloudflare | Not met | OAuth Protected Resource metadata (RFC 9728) (fail).; No /.well-known/oauth-protected-resource found (RFC 9728) | | CF-AGENT-SKILLS; Agent Skills index | cloudflare | No Ora check | Agent Skills index conformance (v0.2.0) (not applicable). | | VERCEL-NEGOTIATION-HEADERS; Markdown headers | vercel | Not met | Markdown content negotiation (acceptmarkdown.com) (fail).; Homepage https://tesco.com does not meet the Markdown negotiation requirements: Accept: text/markdown returned text/html; Vary header missing Accept (got "none") | | VERCEL-ROBOTS-EXCLUSIONS; Robots exclusions | vercel | No Ora check | robots.txt AI crawler policy (not applicable), robots.txt agent-user policy (not applicable). | ## The fixes worth most points Ora attaches an estimate to each failing or partial check: how many points the site would gain by passing it. These are the 5 with the largest estimates for Tesco, each tied to the checklist row whose recipes cover it. OpenAPI spec published Fail, 0 of 7, about 5 points to gain. Ora saw: No OpenAPI/Swagger specification found. Row [AR-ACT-02](https://agentreadychecklist.com/checklist/ar-act-02/), OpenAPI contract. MCP server / manifest Fail, 0 of 6, about 4.6 points to gain. Ora saw: No MCP server or manifest found. Row [AR-ACT-03](https://agentreadychecklist.com/checklist/ar-act-03/), MCP over Streamable HTTP. OAuth 2.0 support Fail, 0 of 5, about 3.8 points to gain. Ora saw: No OAuth 2.0 or OpenID Connect support detected. Row [AR-ACT-01](https://agentreadychecklist.com/checklist/ar-act-01/), Auth an agent can finish. Scoped permissions Fail, 0 of 5, about 3.8 points to gain. Ora saw: No declared OAuth scopes, security schemes, or scoped-permission documentation found. Row [AR-ACT-01](https://agentreadychecklist.com/checklist/ar-act-01/), Auth an agent can finish. WebMCP support Fail, 0 of 5, about 3.8 points to gain. Ora saw: No WebMCP support detected - no document.modelContext / navigator.modelContext usage found. Row [AR-ACT-07](https://agentreadychecklist.com/checklist/ar-act-07/), WebMCP tools. ## Our read Tesco's door is shut to the agents Ora sends: bot management challenged ChatGPT-User, OAI-SearchBot, Claude-User and PerplexityBot, and robots.txt itself came back as a 403 challenge, so the policy cannot be read and the home page, its text and its structured data are all unverified from the outside. What Ora found past the wall should be read with care: the documentation site and developer portal it reports at login.ourtesco.com is the colleague login, not an API programme, and the GraphQL endpoint it reached requires authentication. There is no sitemap and no llms.txt, and the Wikipedia match landed on the Clubcard article rather than the company. Britain's largest grocer sells online at scale and has every reason to manage bots; the checklist asks it to say so in a robots.txt an agent can fetch, and to let the agents the file allows read the pages the sitemap would list. ## Verify your own site The scan above is free and needs no account: enter a domain at [ora.ai](https://ora.ai/?utm_source=agentreadychecklist.com&utm_medium=referral&utm_campaign=check) and read the same four layers for your own site, then take each failing row to its recipe on this site. The command below runs the same audit from a terminal and exits with 1 under the score you set, so it can gate a deploy. Payments did not apply to this company; a site that sells is read on that layer too. [Why Ora, and its limits](https://agentreadychecklist.com/verify-with-ora/). ```bash npx ax@0.10 audit https://example.com --min-score 70 ``` [All 360 checks](https://agentreadychecklist.com/blog/), one company a day. Corrections to [the corrections page](https://agentreadychecklist.com/corrections/). ## Sources - [ora.ai/api/score/tesco.com, Ora's scan (vendor)](https://ora.ai/api/score/tesco.com?utm_source=agentreadychecklist.com&utm_medium=referral&utm_campaign=check)read 2026-11-09 - [ora.ai/api/checks, contract 1.38.0 (vendor)](https://ora.ai/api/checks?utm_source=agentreadychecklist.com&utm_medium=referral&utm_campaign=check)read 2026-11-05 - [tesco.com, the company's site](https://tesco.com/)read 2026-11-09 Edition Data 2026-11-04 Reviewed 2026-11-05 Spec AgentReady v2.0, 273d2d7 Crawl 13,071 rows, 2026-11-04 Ora 132 checks, contract 1.38.0, 2026-11-05 Verify with Ora The scanner this site recommends for the whole checklist. 132 checks, a score out of 100, no account. `npx ax@0.10 audit --min-score ` [Why Ora, and its limits](https://agentreadychecklist.com/verify-with-ora/) Method - [How rows, commands and rates are made](https://agentreadychecklist.com/method/) - [How an Ora check is matched to a row](https://agentreadychecklist.com/checklist/ora-checks/) - [Pass rates by rank band](https://agentreadychecklist.com/data/by-rank/) Sources and read dates sit at the foot of the page. Last reviewed 2026-11-09. AgentReady v2.0, read 2026-11-04.