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 asomayor.org

Valid
Issued by (CA)
Sectigo Limited
Subject
asomayor.org
Valid from
Jan 29, 2026
Valid until
Jan 29, 2027 (104 days remaining)
Public key
RSA 2048-bit
Serial
5C26C0954426D25EAC1D0C1151D5F23E
SHA-256 fingerprint
BB:E8:2B:31:81:BC:B0:DA:D7:D9:AA:51:13:EC:D5:0D:43:7F:5C:B4:0A:AD:73:A2:E9:7C:CC:CE:AF:E4:9B:00
Chain
Sectigo Public Server Authentication CA DV R36 → Sectigo Public Server Authentication Root R46 → USERTrust RSA Certification Authority
Subject Alternative Names (2)
asomayor.org, www.asomayor.org

Certificate Authority Authorization (CAA)

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

Never get surprised by asomayor.org's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch asomayor.org continuously, notifying you the moment anything moves across all three signals:

Certificate monitor showing the issuer, expiry date, chain status, fingerprint, covered names, and a history of a rotation and an expiry warning

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, CNAME, TXT 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.