SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
SSL/TLS Certificate for tecit.pt
Valid- Issued by (CA)
- Sectigo Limited
- Subject
- tecit.pt
- Valid from
- Mar 18, 2026
- Valid until
- Oct 2, 2026 (59 days remaining)
- Public key
- RSA 4096-bit
- Serial
- 10DF965869A67411A5DC0FF6B97D0473
- SHA-256 fingerprint
- 8D:FE:7E:20:5C:77:47:D3:22:F5:E7:9C:5A:E6:5B:D4:E0:FC:09:6F:A7:27:E3:80:C0:8A:A8:E4:91:DC:87:4A
- Chain
- Sectigo Public Server Authentication CA OV R36 → Sectigo Public Server Authentication Root R46
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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