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 lookup.recipes

Valid
Issued by (CA)
Let's Encrypt
Subject
lookup.recipes
Valid from
Oct 12, 2026
Valid until
Jan 10, 2027 (84 days remaining)
Public key
RSA 4096-bit
Serial
054CB57396D4ADE5B870E29B37CA960AD9D0
SHA-256 fingerprint
D3:EB:01:2C:E2:BB:02:E4:19:CA:D7:20:33:4A:55:CE:FD:4B:30:19:54:97:AC:0C:5A:93:3F:D1:51:66:10:A6
Chain
YR2 → Root YR → ISRG Root X1
Subject Alternative Names (2)
lookup.recipes, www.lookup.recipes

Certificate Authority Authorization (CAA)

The serving CA (Let's Encrypt) is authorized by this domain's CAA records (letsencrypt.org, trust-provider.com).

This certificate has been served since Aug 27, 2026.

Never get surprised by lookup.recipes's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch lookup.recipes 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.