CrawlCheck · machine-readability certificate
opensearch.org is not currently certified
The latest measurement (2026-10-04) does not meet every criterion below, or it is more than 7 days old. The same signed statement is issued either way.
| Criterion | Result | Why |
|---|---|---|
| Measured in the last 7 days | pass | measured 3.4 days ago |
| Scored under the current rule pack | fail | record sv27, current sv28 |
| The site answered the scanner | pass | homepage answered |
| Every crawler the site allows reached the page | fail | 1 allowed identity was refused: Bytespider 403 (robots.txt allows it, the server does not) |
| No high or critical finding | pass | 3 finding(s), none high or critical |
| robots.txt is served and means what it says | pass | no robots.txt defect |
| The evidence is kept and signed | pass | manifest f78752de5268… signed by hcIAczGf-8… |
Certified-days history
Certified on 0 of the last 11 days · 2 measurements since 2026-09-27. Days with no covering measurement are shown as unmeasured, never as failed.
What this certificate says, and what it does not
It states what a crawler received from opensearch.org on 2026-10-04, under rule pack sv27. It is free, it cannot be bought, and no plan changes it. It is not a grade, and it says nothing about the business beyond what a crawler received.
Verify it yourself
The certificate is signed with Ed25519 (key hcIAczGf-8EFBnkunmZlvFWnD2nHHeHeC9cM4BTiBVo) over crawlcheck-certificate-v1\n followed by the certificate as canonical JSON (keys sorted, no whitespace). Fetch it from /api/certify, take the public key from our key directory, and check the signature with any Ed25519 library. The measurement behind it is report 8fwfl203v6.