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.

Crt.sh availability

Help

rellem August 5, 2026, 6:08am 4

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

Topic		Replies	Views
Crt.sh not updating Help	8	2757	June 2, 2026
No new let's encrypt certificates on crt.sh Issuance Tech	11	3506	May 9, 2019
Crt.sh seems to have great problems Site Feedback	4	2768	April 16, 2020
Crt.sh has stopped - int32 problem, new database may start next week Help	13	4846	January 11, 2020
Crt.sh seems down? Help	12	1941	September 11, 2026

Crt.sh availability

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