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 seongeun-minji-wedding.site

Valid
Issued by (CA)
Let's Encrypt
Subject
*.seongeun-minji-wedding.site
Valid from
Sep 20, 2026
Valid until
Dec 19, 2026 (43 days remaining)
Public key
RSA 2048-bit
Serial
0619E089CE8FDEE531D6D5346D21E3821649
SHA-256 fingerprint
EA:D5:D9:75:DD:5B:41:1D:12:0A:B2:70:5F:D4:11:A6:E1:6C:77:2D:77:12:4A:65:99:00:F5:EC:41:FE:90:97
Chain
YR1 → Root YR → ISRG Root X1
Subject Alternative Names (2)
*.seongeun-minji-wedding.site, seongeun-minji-wedding.site

Certificate Authority Authorization (CAA)

The serving CA (Let's Encrypt) is authorized by this domain's CAA records (letsencrypt.org, pki.goog, sectigo.com).

Never get surprised by seongeun-minji-wedding.site's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch seongeun-minji-wedding.site 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.