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 he-r.it
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- he-r.it
- Valid from
- Aug 24, 2026
- Valid until
- Nov 22, 2026 (59 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 06733C0B4D14D6746E768548EAA13854B495
- SHA-256 fingerprint
- 14:2A:6E:A0:DB:16:C6:39:78:DA:D9:93:C8:52:C5:0F:B5:BF:F8:90:A4:31:22:52:58:77:C9:D5:CB:AD:55:7F
- 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 1 previous certificate for this host. This certificate has been served since Sep 13, 2026.
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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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