hi - crt.sh for me frequently returns 502 Bad Gateway. [Screenshot 2026-08-04 at 23.14.38] Is there a known maintenance window for when crt.sh becomes unavailable or is it constantly under attack? If the latter, are there any good mirrors/alternatives one can use to inspect CT logs?

I'm moving your post to the most generic category Help because ISRG/Organizational is definitely not the correct category for a website not related to ISRG at all.

Here's a list of alternatives: Certificate Transparency Search Resources

Crt.sh availability

Help

hebbet August 5, 2026, 4:25am 2

See

I am unable to acquire a LE certificate, via GitLab Pages, for “norfolkNeighbourhoodWatch.co.UK”

Topic		Replies	Views
Crt.sh not updating Help	8	2644	June 2, 2026
No new let's encrypt certificates on crt.sh Issuance Tech	11	3495	May 9, 2019
Crt.sh seems to have great problems Site Feedback	4	2753	April 16, 2020
Crt.sh has stopped - int32 problem, new database may start next week Help	13	4821	January 11, 2020
Crt.sh seems down? Help	12	1320	September 11, 2026

Crt.sh availability

Related topics