SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
geodezja-lodz.com
SSL/TLS Certificate
SSL/TLS Certificate for geodezja-lodz.com
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- ftp.geodezja-lodz.com
- Valid from
- Aug 23, 2026
- Valid until
- Nov 21, 2026 (58 days remaining)
- Public key
- EC 256-bit
- Serial
- 067443A9E3B541C741F59BC0D5A11751A499
- SHA-256 fingerprint
- F6:DD:93:E1:85:1E:99:DC:96:0E:FA:79:A1:C4:84:D8:71:F8:47:A8:94:12:36:DA:90:19:87:8F:3C:D6:7D:E5
- Chain
- YE1 → 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.
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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, 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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