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 star-server.info

Hostname mismatch
Issued by (CA)
Let's Encrypt
Subject
www.fair4host.de
Valid from
Jul 6, 2026
Valid until
Oct 4, 2026 (55 days remaining)
Public key
RSA 4096-bit
Serial
052F6EED9169E1665B1F19D7316B24647A7A
SHA-256 fingerprint
6C:37:34:CB:7F:AD:9F:4B:A6:44:25:74:42:A9:53:EE:67:D1:14:F3:7E:2D:2B:19:EB:02:58:AA:13:59:76:12
Chain
YR1 → Root YR → ISRG Root X1
Subject Alternative Names (2)
fair4host.de, www.fair4host.de

Certificate Authority Authorization (CAA)

No CAA policy is published for this domain — any certificate authority may issue for it.

Never get surprised by star-server.info's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch star-server.info 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.

Monitor this certificate free

Free for your first domain: uptime, DNS, and certificate together. No credit card.