SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
gesundes-sitzen.info
SSL/TLS Certificate
SSL/TLS Certificate for gesundes-sitzen.info
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- gesundes-sitzen.info
- Valid from
- Aug 2, 2026
- Valid until
- Oct 31, 2026 (31 days remaining)
- Public key
- RSA 4096-bit
- Serial
- 05F78D20B21AEC421716AC1491E3ECB3F591
- SHA-256 fingerprint
- FD:9F:D2:C6:CA:BB:A0:65:6E:AF:3E:B8:4C:21:A4:C5:EB:8B:52:DD:7D:0F:48:5A:1D:71:27:CF:3E:BF:8E:EC
- Chain
- YR2 → Root YR → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
This certificate has been served since Sep 26, 2026.
Never get surprised by gesundes-sitzen.info's certificate expiring
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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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