{"certificate":{"v":1,"subject":"calibreapp.com","certified":true,"report":"https://crawlcheck.io/r/8fr5g7183f","record":"8fr5g7183f","manifest":"70a2c154215b176ead884fc641aaa35a4e9adbb52fff0d13696292f3bbb2e50c","measured_at":"2026-09-25T09:18:56.292Z","issued_at":"2026-09-29T21:35:44.011Z","expires_at":"2026-10-02T09:18:56.292Z","rule_pack":"sv26","criteria":[{"id":"fresh","ok":true},{"id":"current_rules","ok":true},{"id":"answered","ok":true},{"id":"crawlers_reach","ok":true},{"id":"no_serious","ok":true},{"id":"robots_sound","ok":true},{"id":"evidence","ok":true}]},"signature":{"alg":"Ed25519","kid":"hcIAczGf-8EFBnkunmZlvFWnD2nHHeHeC9cM4BTiBVo","message_prefix":"crawlcheck-certificate-v1\\n","signed":"prefix + canonical JSON of certificate (keys sorted, no whitespace)","sig":"-SBOU_EoFxhI-KYq-DaU1mb5QhcjmNHEIQby9LtAhTy4lXzMdLY0TkjKI6QxzqCW2HC4OEcDkUCdbelYUtdrCQ","key_directory":"https://crawlcheck.io/.well-known/http-message-signatures-directory"},"criteria":[{"id":"fresh","label":"Measured in the last 7 days","ok":true,"why":"measured 4.5 days ago"},{"id":"current_rules","label":"Scored under the current rule pack","ok":true,"why":"record sv26, current sv26"},{"id":"answered","label":"The site answered the scanner","ok":true,"why":"homepage answered"},{"id":"crawlers_reach","label":"Every crawler the site allows reached the page","ok":true,"why":"14 of 14 answered"},{"id":"no_serious","label":"No high or critical finding","ok":true,"why":"3 finding(s), none high or critical"},{"id":"robots_sound","label":"robots.txt is served and means what it says","ok":true,"why":"no robots.txt defect"},{"id":"evidence","label":"The evidence is kept and signed","ok":true,"why":"manifest 70a2c154215b… signed by hcIAczGf-8…"}],"page":"https://crawlcheck.io/certificate/calibreapp.com","seal":"https://crawlcheck.io/certificate/calibreapp.com.svg","history":{"since":"2026-09-25","from":"2026-09-24","measurements":1,"days_tracked":5,"days_certified":5,"days_not_certified":0,"days_unmeasured":0,"streak_days":5,"recent":[{"day":"2026-09-25","state":"certified"},{"day":"2026-09-26","state":"certified"},{"day":"2026-09-27","state":"certified"},{"day":"2026-09-28","state":"certified"},{"day":"2026-09-29","state":"certified"}]},"note":"a certificate states measured conformance on one day; it is free, never sold, never a grade, and says nothing about the business beyond what a crawler received"}