CrawlCheck

CrawlCheck · machine-readability certificate

e2b.dev is not currently certified

The latest measurement (2026-10-08) does not meet every criterion below, or it is more than 7 days old. The same signed statement is issued either way.

CriterionResultWhy
Measured in the last 7 dayspassmeasured 3.6 days ago
Scored under the current rule packfailrecord sv28, current sv31
The site answered CrawlCheckpasshomepage answered
Every crawler the site allows reached the pagepass14 of 14 answered
No high or critical findingpass5 finding(s), none high or critical
robots.txt is served and means what it sayspassno robots.txt defect
The evidence is kept and signedpassmanifest c2c1972f17ac… signed by hcIAczGf-8…

Certified-days history

Certified on 18 of the last 18 days · current run 18 days · 4 measurements since 2026-09-25. Days with no covering measurement are shown as unmeasured, never as failed.

2026-09-25: certified2026-09-26: certified2026-09-27: certified2026-09-28: certified2026-09-29: certified2026-09-30: certified2026-10-01: certified2026-10-02: certified2026-10-03: certified2026-10-04: certified2026-10-05: certified2026-10-06: certified2026-10-07: certified2026-10-08: certified2026-10-09: certified2026-10-10: certified2026-10-11: certified2026-10-12: certified
Green certified · amber not certified · grey unmeasured. One bar per UTC day, oldest left.

What this certificate says, and what it does not

It states what a crawler received from e2b.dev on 2026-10-08, under rule pack sv28. 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 1hHmE3fo1rg5Ig70wuFtJ5wBc7G-sUTgUJkxyPWFRps) 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 h81h1r719b.