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 dog-fan.com

Valid
Issued by (CA)
Let's Encrypt
Subject
www.dog-fan.com
Valid from
Sep 12, 2026
Valid until
Dec 11, 2026 (65 days remaining)
Public key
RSA 2048-bit
Serial
05F35A08DC5B842D59DCF0CCE5CA5CE528BA
SHA-256 fingerprint
FD:4B:E5:55:B6:B3:B8:DC:3F:F2:8E:EB:A6:59:89:EE:8C:75:1D:D3:C8:B0:82:29:CF:AF:F0:DD:88:03:8D:1D
Chain
YR2 → Root YR → ISRG Root X1
Subject Alternative Names (3)
dog-fan.com, mail.dog-fan.com, www.dog-fan.com

Certificate Authority Authorization (CAA)

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

We've observed 1 previous certificate for this host. This certificate has been served since Sep 13, 2026.

Never get surprised by dog-fan.com's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch dog-fan.com 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.