SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
auf-see.de
SSL/TLS Certificate
SSL/TLS Certificate for auf-see.de
Valid- Issued by (CA)
- Sectigo Limited
- Subject
- *.auf-see.de
- Valid from
- Oct 12, 2026
- Valid until
- Apr 24, 2027 (164 days remaining)
- Public key
- RSA 2048-bit
- Serial
- FC6F88CF3A14E29ABF53576AE22CA760
- SHA-256 fingerprint
- AE:42:32:6E:C3:CE:58:FC:5A:21:C2:E3:20:38:56:E5:15:A6:F8:07:62:77:11:D2:FF:F5:1D:18:DB:94:FF:1D
- Chain
- Sectigo Public Server Authentication CA DV R36 → Sectigo Public Server Authentication Root R46 → USERTrust RSA Certification Authority
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
Never get surprised by auf-see.de's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch auf-see.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, 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.
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