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 br-group.fr

Valid
Issued by (CA)
Let's Encrypt
Subject
br-group.fr
Valid from
Jul 27, 2026
Valid until
Oct 25, 2026 (80 days remaining)
Public key
RSA 2048-bit
Serial
0593408CA8D87C9E94F6C7A119F7776DAE82
SHA-256 fingerprint
B2:E6:CA:18:51:9C:28:B6:13:21:A9:0B:18:B1:98:3C:47:29:43:16:9A:2C:73:F4:09:B1:E0:92:EE:7D:0A:20
Chain
YR2 → Root YR → ISRG Root X1
Subject Alternative Names (3)
br-group.fr, mail.br-group.fr, www.br-group.fr

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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