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 buddy.fitness

Valid
Issued by (CA)
Let's Encrypt
Subject
buddy.fitness
Valid from
Sep 27, 2026
Valid until
Dec 26, 2026 (83 days remaining)
Public key
EC 256-bit
Serial
0505E701D5F287D0DBF0B4DA1BF0EF249743
SHA-256 fingerprint
CF:21:6E:EF:8B:E0:DA:C0:84:16:24:B1:DE:E1:C4:D8:26:5A:FD:B5:3C:78:27:56:6D:58:64:A9:B7:0C:94:33
Chain
YE2 → Root YE → ISRG Root X2 → ISRG Root X1
Subject Alternative Names (1)
buddy.fitness

Certificate Authority Authorization (CAA)

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

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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.

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