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 phoenix-geophysics.com

Self-signed
Issued by (CA)
pho.phoenix-geophysics.com
Subject
pho.phoenix-geophysics.com
Valid from
Oct 29, 2025
Valid until
Oct 29, 2026 (31 days remaining)
Public key
RSA 2048-bit
Serial
0A81ED22
SHA-256 fingerprint
0A:7C:83:A9:38:0F:4F:EB:CC:D1:3C:AE:F0:13:12:84:DA:16:BB:B0:80:DF:E9:3C:66:F9:E4:C1:5A:6F:B0:87
Chain
pho.phoenix-geophysics.com

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 27, 2026.

Never get surprised by phoenix-geophysics.com's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch phoenix-geophysics.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.