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 h2-it.de
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- h2-it.de
- Valid from
- Jun 19, 2026
- Valid until
- Sep 17, 2026 (55 days remaining)
- Public key
- RSA 4096-bit
- Serial
- 05976F3AB4E9835D2BF57F294813C062BED2
- SHA-256 fingerprint
- BA:9E:5B:79:A9:A1:1F:F5:88:7E:BA:F1:2C:56:7A:E9:A8:D6:F3:2E:3F:B6:BF:02:89:46:64:08:15:58:AA:66
- 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.
Never get surprised by h2-it.de's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch h2-it.de continuously, notifying you the moment anything moves across all three signals:
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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