SSL/TLS Certificate Lookup

Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted

your-shop.com

SSL/TLS Certificate

WhoisRDAPDNS RecordsCertificateUptimeDiagnosticsHistoryHide Contact Info

SSL/TLS Certificate for your-shop.com

Hostname mismatch
Issued by (CA)
Let's Encrypt
Subject
yourshop.com
Valid from
Jun 26, 2026
Valid until
Sep 24, 2026 (64 days remaining)
Public key
EC 256-bit
Serial
058D441623C2ADFD2A23E403F0B03E40D1E8
SHA-256 fingerprint
B9:A1:52:55:86:F3:DD:AC:4B:D4:CA:0D:95:C4:64:AF:EC:37:55:DF:60:6C:A5:45:FF:0A:C1:8D:7D:E2:5C:9F
Chain
YE2 → Root YE → ISRG Root X2 → ISRG Root X1
Subject Alternative Names (44)
omega.yourshop.com, secure.yourshop.com, www.yourshop.at, www.yourshop.be, www.yourshop.ch, www.yourshop.cn, www.yourshop.co, www.yourshop.co.il, www.yourshop.co.uk, www.yourshop.com, www.yourshop.de, www.yourshop.es, www.yourshop.eu, www.yourshop.fr, www.yourshop.it, www.yourshop.li, www.yourshop.lu, www.yourshop.me, www.yourshop.pro, www.yourshop.pt, www.yourshop.swiss, www.yourshop.uk, www.yourshop.us, yourshop.at, yourshop.be, yourshop.ch, yourshop.cn, yourshop.co, yourshop.co.il, yourshop.co.uk, yourshop.com, yourshop.de, yourshop.es, yourshop.eu, yourshop.fr, yourshop.it, yourshop.li, yourshop.lu, yourshop.me, yourshop.pro, yourshop.pt, yourshop.swiss, yourshop.uk, yourshop.us

Certificate Authority Authorization (CAA)

The serving CA (Let's Encrypt) is authorized by this domain's CAA records (letsencrypt.org).

Never get surprised by your-shop.com's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch your-shop.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.