SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
fritz-klimsch.org
SSL/TLS Certificate
SSL/TLS Certificate for fritz-klimsch.org
Valid- Issued by (CA)
- DigiCert Inc
- Subject
- www.fritz-klimsch.org
- Valid from
- Jan 2, 2026
- Valid until
- Feb 2, 2027 (153 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 0AE2D9886FE0A9791873EAA20956F454
- SHA-256 fingerprint
- F9:0F:91:85:19:71:E9:26:B7:2E:DB:AD:06:8F:50:C9:4A:E8:BB:BC:61:8F:AA:09:CA:99:A3:C9:55:9B:75:11
- Chain
- Thawte TLS RSA CA G1 → DigiCert Global Root G2
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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