SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
dontonio-tecnicas.com
SSL/TLS Certificate
SSL/TLS Certificate for dontonio-tecnicas.com
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- dontonio-tecnicas.com
- Valid from
- Oct 31, 2026
- Valid until
- Jan 29, 2027 (82 days remaining)
- Public key
- EC 256-bit
- Serial
- 064D56DF5F5CA8A63DEB8E3B42F8348CBC2B
- SHA-256 fingerprint
- AB:FB:97:6B:7C:BD:5C:4D:CE:11:FA:F1:39:06:DC:68:21:E7:CA:82:C0:C6:BA:E4:81:C6:0B:64:ED:D1:04:C0
- Chain
- YE2 → Root YE → ISRG Root X2 → ISRG Root X1
Certificate Authority Authorization (CAA)
The serving CA (Let's Encrypt) is authorized by this domain's CAA records (letsencrypt.org).
We've observed 1 previous certificate for this host. This certificate has been served since Nov 7, 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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