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 g-p-s.de
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- g-p-s.de
- Valid from
- Sep 12, 2026
- Valid until
- Dec 11, 2026 (34 days remaining)
- Public key
- EC 256-bit
- Serial
- 069F0BA2C8356C9B4F7A9A20665E62E2466E
- SHA-256 fingerprint
- D0:8E:F9:DA:0A:71:E5:7B:0C:5E:61:A7:A6:71:42:28:24:9B:92:86:D8:4C:EE:97:FF:4F:92:C5:5E:3F:0E:1F
- Chain
- YE2 → Root YE → ISRG Root X2 → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
This certificate has been served since Oct 9, 2026.
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This is today's certificate. Turn on monitoring and we'll watch g-p-s.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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