SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
luzerner-wanderwege.ch
SSL/TLS Certificate
SSL/TLS Certificate for luzerner-wanderwege.ch
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- wanderwege-graubuenden.ch
- Valid from
- Jul 22, 2026
- Valid until
- Oct 20, 2026 (82 days remaining)
- Public key
- RSA 4096-bit
- Serial
- 055135CBC7FD954210657EDA10E8F11EB759
- SHA-256 fingerprint
- D2:15:C8:79:64:77:30:56:F6:5C:DD:B4:EF:4B:8E:48:40:51:78:18:3A:29:88:69:60:04:EA:8E:DC:5D:4B:9C
- Chain
- YR2 → Root YR → ISRG Root X1
Certificate Authority Authorization (CAA)
The serving CA (Let's Encrypt) is authorized by this domain's CAA records (letsencrypt.org, sectigo.com).
Never get surprised by luzerner-wanderwege.ch's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch luzerner-wanderwege.ch 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.
Free for your first domain: uptime, DNS, and certificate together. No credit card.