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 otto-wechs.de

Valid
Issued by (CA)
Google Trust Services
Subject
otto-wechs.de
Valid from
Oct 7, 2026
Valid until
Jan 5, 2027 (79 days remaining)
Public key
EC 256-bit
Serial
6594175EA8341DA60EA44822FD3EA940
SHA-256 fingerprint
52:BE:A7:7F:05:71:D2:33:92:8A:72:84:A7:41:5C:28:A4:2C:C1:F5:64:32:1C:21:CF:16:7B:F9:DA:B0:74:17
Chain
WE1 → GTS Root R4
Subject Alternative Names (2)
*.otto-wechs.de, otto-wechs.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 Oct 11, 2026.

Never get surprised by otto-wechs.de's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch otto-wechs.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.