{"slug":"mailchimp-e2gq3w","companyName":"Mailchimp","domain":"mailchimp.com","url":"https://mailchimp.com","headline":"Mailchimp blocks automated signup evaluation with traffic challenges while hiding prices behind JavaScript, forcing both humans and agents to navigate blind.","compositeScore":63,"humanScore":80,"agentScore":46,"doorGap":34,"humanMeasured":1,"agentMeasured":6,"percentile":null,"humanPercentile":null,"agentPercentile":null,"isPartial":false,"depth":"free","siteClass":"hybrid","scannerVersion":12,"scannedAt":"2026-09-08T11:39:11.412Z","unlocked":false,"mission":{"steps":[{"url":"https://mailchimp.com","outcome":"ok","purpose":"reach the site at all"},{"url":"https://mailchimp.com/robots.txt","outcome":"ok","purpose":"find out whether machines are welcome"},{"url":"https://mailchimp.com","outcome":"ok","purpose":"ask whether the door opens for requests carrying the AI crawlers' names"},{"url":"https://mailchimp.com/llms.txt","outcome":"ok","purpose":"read the site's own guide for language models"},{"url":"https://mailchimp.com/sitemap.xml","outcome":"ok","purpose":"find out what pages exist"},{"url":"https://mailchimp.com/.well-known/security.txt","outcome":"ok","purpose":"find a contact route for machines"},{"url":"https://mailchimp.com","outcome":"missing","purpose":"find a published agent interface"},{"url":"https://mailchimp.com/.well-known/ai-plugin.json","outcome":"missing","purpose":"find an agent plugin manifest"},{"url":"https://mailchimp.com","outcome":"missing","purpose":"find out whether verified agents are recognised"},{"url":"https://mailchimp.com","outcome":"ok","purpose":"read the homepage as data rather than as a page"},{"url":"https://mailchimp.com","outcome":"missing","purpose":"find a machine readable API spec"},{"url":"https://mailchimp.com","outcome":"ok","purpose":"read the developer documentation"},{"url":"https://mailchimp.com/pricing/marketing/compare-plans/","outcome":"missing","purpose":"read the prices without running JavaScript"},{"url":"https://mailchimp.com","outcome":"missing","purpose":"read the product catalogue as data"},{"url":"https://mailchimp.com","outcome":"ok","purpose":"read a product page as data"},{"url":"https://mailchimp.com","outcome":"missing","purpose":"read the returns and shipping terms"},{"url":"https://mailchimp.com","outcome":"ok","purpose":"find a comparison page worth citing"},{"url":"https://mailchimp.com","outcome":"ok","purpose":"walk the way a visitor would, to a signup form or a product"}],"verdict":"The agent got through 11 of 18 requests, but could not find a published agent interface. It came up empty on 6 other checks too. That is enough missing for a machine to give up before it reaches a purchase."},"observations":null,"dimensions":[{"key":"machine_discoverability","audience":"agent","score":77,"summary":"No AI crawler is blocked, a real browser is served the page normally, no user agent rule refuses the declared AI crawler names, key content only appears after JavaScript runs, a sitemap listing 435 URLs, some structured data, but a thin.","evidence":{"locked":true,"count":4}},{"key":"programmatic_onboarding","audience":"agent","score":60,"summary":"The docs describe self serve key issuance, API credentials are documented, authentication is documented, endpoint examples are shown, code samples are provided.","evidence":{"locked":true,"count":3}},{"key":"pricing_legibility","audience":"agent","score":30,"summary":"Five prices render on the pricing page only after JavaScript executes: Free, $0, $299, $350, $385, and $800. The raw HTML contains no prices at all. A client that does not render pages sees nothing.","evidence":{"locked":true,"count":2}},{"key":"agent_aware_instrumentation","audience":"agent","score":23,"summary":"No MCP manifest, WooCommerce supports the agent checkout protocols, but none is published yet, developer documentation describes an API, but only in prose.","evidence":{"locked":true,"count":4}},{"key":"machine_fetchable_trust","audience":"agent","score":85,"summary":"Security.txt is published at /.well-known/security.txt with a contact route for machines. The homepage answers automated HTTP requests with a 200 status in 125ms. Structured data on the homepage includes Service and Organization types.","evidence":{"locked":true,"count":3}},{"key":"commercial_rails","audience":"agent","score":0,"summary":"The pricing page at /pricing/marketing/compare-plans/ publishes plan names and five price points that render after JavaScript, but routes to sales for any purchase decision.","evidence":{"locked":true,"count":4}},{"key":"steps_to_first_value","audience":"human","score":80,"summary":"The signup page is 2 steps from the homepage via the 'Start Free Trial' call to action. However, an automated browser received a traffic challenge when attempting to reach the form, so the form itself could not be read.","evidence":{"locked":true,"count":1}},{"key":"required_fields","audience":"human","score":null,"summary":"Could not verify: this scan did not reach the pages that would show it.","evidence":{"locked":true,"count":1}},{"key":"verification_walls","audience":"human","score":null,"summary":"Could not verify: this scan did not reach the pages that would show it.","evidence":{"locked":true,"count":1}},{"key":"error_recovery","audience":"human","score":null,"summary":"Could not verify: this scan did not reach the pages that would show it.","evidence":{"locked":true,"count":1}}],"issues":[{"rank":1,"title":"No OpenAPI specification was found at the 6 standard paths checked, so a client must be written from prose instead of generated.","dimensionKey":"programmatic_onboarding","evidence":{"locked":true,"count":2},"fix":null},{"rank":2,"title":"No MCP manifest was found at the 3 standard paths checked, so an agent has no published machine door to this site.","dimensionKey":"agent_aware_instrumentation","evidence":{"locked":true,"count":2},"fix":null},{"rank":3,"title":"Prices are hidden behind JavaScript, making them invisible to any client that does not render pages.","dimensionKey":"pricing_legibility","evidence":{"locked":true,"count":3},"fix":null}],"fixArtifacts":{"locked":true,"count":9,"summaries":[{"id":"pricing_ssr_fallback:pricing-page","kind":"pricing_ssr_fallback","title":"Prices in the HTML, not only after JavaScript","path":"pricing page","effort":{"minutes":60,"role":"developer"},"outcome":{"dimension":"pricing_legibility","external":["A client that reads raw HTML sees the plans and prices."]}},{"id":"software_offer_jsonld:pricing-page","kind":"software_offer_jsonld","title":"Pricing as Offer structured data","path":"pricing page","effort":{"minutes":20,"role":"developer"},"outcome":{"dimension":"pricing_legibility","external":["Assistants comparing vendors read the plans and prices as Offer structured data."]}},{"id":"robots_search_bots:robots-txt","kind":"robots_search_bots","title":"robots.txt rules for AI crawlers","path":"/robots.txt","effort":{"minutes":10,"role":"owner"},"outcome":{"dimension":"machine_discoverability","external":["The assistants' search crawlers read and cite the site to buyers; training stays the owner's decision."]}},{"id":"policy_pages_text:returns","kind":"policy_pages_text","title":"Returns and refunds page","path":"/returns","effort":{"minutes":30,"role":"owner"},"outcome":{"dimension":"machine_fetchable_trust","external":["Returns and shipping pages read as text and are linked from every product page."]}},{"id":"policy_pages_text:shipping","kind":"policy_pages_text","title":"Shipping and delivery page","path":"/shipping","effort":{"minutes":30,"role":"owner"},"outcome":{"dimension":"machine_fetchable_trust","external":["Returns and shipping pages read as text and are linked from every product page."]}},{"id":"agent_checkout_note:notes","kind":"agent_checkout_note","title":"Agent checkout: where you stand","path":"notes","effort":{"minutes":10,"role":"owner"},"outcome":{"dimension":"agent_aware_instrumentation","external":["The checkout rail question is settled with the platform and processor before any manifest is published."]}},{"id":"interfaces_note:notes","kind":"interfaces_note","title":"Machine interfaces: where you stand","path":"notes","effort":{"minutes":10,"role":"owner"},"outcome":{"dimension":"agent_aware_instrumentation","external":["The developer surface is built in an order where every published pointer answers."]}},{"id":"pricing_md:pricing-md","kind":"pricing_md","title":"pricing.md","path":"/pricing.md","effort":{"minutes":20,"role":"owner"},"outcome":{"dimension":"agent_aware_instrumentation","external":["Agents read the price list directly instead of rendering the pricing page."]}},{"id":"organization_jsonld:homepage","kind":"organization_jsonld","title":"Organization structured data","path":"homepage","effort":{"minutes":15,"role":"developer"},"outcome":{"dimension":"machine_discoverability","external":["Search and assistant crawlers read the company entity from the homepage rather than inferring it."]}}]},"feedback":{"endpoint":"/api/feedback","mcpTool":"rate_fix","targets":[{"type":"report","key":"report"},{"type":"dimension","dimensionKey":"machine_discoverability","key":"dimension:machine_discoverability"},{"type":"dimension","dimensionKey":"programmatic_onboarding","key":"dimension:programmatic_onboarding"},{"type":"dimension","dimensionKey":"pricing_legibility","key":"dimension:pricing_legibility"},{"type":"dimension","dimensionKey":"agent_aware_instrumentation","key":"dimension:agent_aware_instrumentation"},{"type":"dimension","dimensionKey":"machine_fetchable_trust","key":"dimension:machine_fetchable_trust"},{"type":"dimension","dimensionKey":"commercial_rails","key":"dimension:commercial_rails"},{"type":"dimension","dimensionKey":"steps_to_first_value","key":"dimension:steps_to_first_value"},{"type":"dimension","dimensionKey":"required_fields","key":"dimension:required_fields"},{"type":"dimension","dimensionKey":"verification_walls","key":"dimension:verification_walls"},{"type":"dimension","dimensionKey":"error_recovery","key":"dimension:error_recovery"},{"type":"issue","dimensionKey":"programmatic_onboarding","checkId":"openapi","key":"issue:programmatic_onboarding:openapi"},{"type":"issue","dimensionKey":"agent_aware_instrumentation","checkId":"mcp_manifest","key":"issue:agent_aware_instrumentation:mcp_manifest"},{"type":"issue","dimensionKey":"pricing_legibility","checkId":null,"key":"issue:pricing_legibility:-"}]}}