SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
safka-servis.cz
SSL/TLS Certificate
SSL/TLS Certificate for safka-servis.cz
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- safka-servis.cz
- Valid from
- Sep 30, 2026
- Valid until
- Dec 29, 2026 (68 days remaining)
- Public key
- RSA 4096-bit
- Serial
- 0541ED94694169E0ABF4AFF88A33138F1DBF
- SHA-256 fingerprint
- C5:22:C3:B0:5C:24:B6:B7:E3:21:8A:18:EA:57:46:A3:03:EE:0F:3B:4C:1E:F4:5E:D5:78:DF:E3:9D:55:5D:51
- Chain
- YR1 → Root YR → 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 Aug 12, 2026.
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Uptime
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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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