SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
kohlefreies-mainz.de
SSL/TLS Certificate
SSL/TLS Certificate for kohlefreies-mainz.de
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- *.kohlefreies-mainz.de
- Valid from
- Jul 13, 2026
- Valid until
- Oct 11, 2026 (54 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 05045E86D2F375D3255138524049CD02D304
- SHA-256 fingerprint
- 39:4C:7A:88:C0:1D:FC:72:8C:1F:34:80:BF:1C:5E:1D:0F:8A:7F:02:68:04:EC:F2:B8:86:C4:51:3D:BC:2C:71
- 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.
Never get surprised by kohlefreies-mainz.de's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch kohlefreies-mainz.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.
Free for your first domain: uptime, DNS, and certificate together. No credit card.