SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
auto-fit.pt
SSL/TLS Certificate
SSL/TLS Certificate for auto-fit.pt
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- auto-fit.pt
- Valid from
- Oct 30, 2026
- Valid until
- Jan 28, 2027 (75 days remaining)
- Public key
- RSA 4096-bit
- Serial
- 0558AFEF13243F9013DFDB866A88B425D15A
- SHA-256 fingerprint
- 82:EE:98:67:F5:AF:08:09:E6:0B:ED:62:19:28:06:E6:F2:EB:6A:D4:12:AE:45:12:5C:10:83:8B:59:12:06:7D
- 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.
We've observed 2 previous certificates for this host. This certificate has been served since Nov 9, 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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