SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
andreas-franz.net
SSL/TLS Certificate
SSL/TLS Certificate for andreas-franz.net
Valid- Issued by (CA)
- Google Trust Services
- Subject
- andreas-franz.net
- Valid from
- Jun 19, 2026
- Valid until
- Sep 17, 2026 (31 days remaining)
- Public key
- EC 256-bit
- Serial
- 8C4C63D3F94662580EC4EA50377D7694
- SHA-256 fingerprint
- C0:DB:29:B5:C2:11:9E:8E:8A:39:64:0D:A3:D4:63:56:9D:0B:53:E3:AD:C3:FB:44:74:AA:9B:BD:FA:03:67:99
- Chain
- WE1 → GTS Root R4
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
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Uptime
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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.
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