SSL/TLS Certificate Lookup

Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted

SSL/TLS Certificate for gewerbering-jena-ost.de

Valid
Issued by (CA)
Let's Encrypt
Subject
gewerbering-jena-ost.de
Valid from
Oct 30, 2026
Valid until
Jan 28, 2027 (82 days remaining)
Public key
RSA 4096-bit
Serial
0617B776FD2521D030C932B93DF2280D3833
SHA-256 fingerprint
A8:DB:96:25:20:20:20:F0:D1:1F:29:37:73:7D:C2:33:B8:18:DF:70:1E:C0:8E:38:03:02:9B:45:1A:6B:BC:A6
Chain
YR2 → Root YR → ISRG Root X1
Subject Alternative Names (2)
gewerbering-jena-ost.de, www.gewerbering-jena-ost.de

Certificate Authority Authorization (CAA)

No CAA policy is published for this domain — any certificate authority may issue for it.

We've observed 1 previous certificate for this host. This certificate has been served since Nov 1, 2026.

Never get surprised by gewerbering-jena-ost.de's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch gewerbering-jena-ost.de continuously, notifying you the moment anything moves across all three signals:

Certificate monitor showing the issuer, expiry date, chain status, fingerprint, covered names, and a history of a rotation and an expiry warning

Uptime

We visit the site from multiple regions worldwide and email you within minutes if it goes down, with a per-region breakdown so a real outage stands out from a regional blip.

DNS changes

We watch NS, MX, CAA, CNAME, TXT and A/AAAA records, and identify the host, network, and ASN behind them, so a real migration or hijack stands out from routine noise.

TLS certificate

We warn you 30, 14, 7, and 1 days before it expires, and flag it if the issuing authority changes or the certificate is unexpectedly replaced.

Monitor this certificate free

Free for your first domain: uptime, DNS, and certificate together. No credit card.