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 dage249.one

Expired
Issued by (CA)
ZeroSSL GmbH
Subject
dage249.one
Valid from
Apr 14, 2026
Valid until
Jul 13, 2026 (expired 31 days ago)
Public key
EC 384-bit
Serial
CE72FE5FE1FB709F22266F435A394C3F
SHA-256 fingerprint
8C:23:DD:0E:0D:5E:C0:C7:32:DD:C0:03:19:9E:DD:C8:9A:60:55:FA:9C:B9:A1:AA:8E:1B:6D:14:65:D1:85:75
Chain
ZeroSSL ECC DV SSL CA 2 → Sectigo Public Server Authentication Root E46 → USERTrust ECC Certification Authority
Subject Alternative Names (2)
*.dage249.one, dage249.one

Certificate Authority Authorization (CAA)

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

Never get surprised by dage249.one's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch dage249.one 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.