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 yozemi-sateline.ac

Valid
Issued by (CA)
Sectigo Limited
Subject
www.yozemi-sateline.ac
Valid from
Nov 17, 2025
Valid until
Dec 11, 2026 (129 days remaining)
Public key
RSA 2048-bit
Serial
DD858DA738385CFE197E0AA17C03380B
SHA-256 fingerprint
73:49:36:EA:DF:CB:6E:38:9A:99:05:63:FF:A2:F0:D9:6D:2D:A7:67:B0:73:C7:37:04:3C:4E:05:38:E4:88:4B
Chain
Sectigo Public Server Authentication CA DV R36 → Sectigo Public Server Authentication Root R46 → USERTrust RSA Certification Authority
Subject Alternative Names (2)
www.yozemi-sateline.ac, yozemi-sateline.ac

Certificate Authority Authorization (CAA)

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

Never get surprised by yozemi-sateline.ac's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch yozemi-sateline.ac 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.