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 sippe-gungnir.de

Hostname mismatch
Issued by (CA)
Sectigo Limited
Subject
*.configcenter.info
Valid from
Jun 26, 2026
Valid until
Jan 10, 2027 (172 days remaining)
Public key
RSA 4096-bit
Serial
C0816F9B6ADA0BA9E893066F5F16DDC6
SHA-256 fingerprint
4D:A2:80:C6:1F:BD:0C:A8:60:E9:73:1A:B9:A2:08:DF:F6:93:F6:64:50:5E:10:19:59:E9:70:7A:46:14:DF:AB
Chain
Sectigo Public Server Authentication CA DV R36 → Sectigo Public Server Authentication Root R46 → USERTrust RSA Certification Authority
Subject Alternative Names (3)
*.configcenter.info, configcenter.info, www.configcenter.info

Certificate Authority Authorization (CAA)

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

Never get surprised by sippe-gungnir.de's certificate expiring

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

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, DNSSEC, CNAME 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.