SSL/TLS Certificate Lookup

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

4im.fr

SSL/TLS Certificate

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SSL/TLS Certificate for 4im.fr

Valid
Issued by (CA)
Let's Encrypt
Subject
informaticien-manager.info
Valid from
Jun 2, 2026
Valid until
Aug 31, 2026 (40 days remaining)
Public key
EC 256-bit
Serial
0601297B172C055E359FCD8C77B8CD06BD46
SHA-256 fingerprint
B4:8F:EC:22:B1:64:B1:00:05:DB:84:8D:EC:0A:EF:66:27:71:A2:F5:63:B0:42:F0:3C:3A:30:F5:48:33:F8:A2
Chain
YE1 → Root YE → ISRG Root X2 → ISRG Root X1
Subject Alternative Names (36)
*.4im.fr, *.4im.info, *.4mm.fr, *.4tech.fr, *.anciens-g4.fr, *.ecole-ingenieur.info, *.ecole-multimedia.info, *.etu4.com, *.g4h.fr, *.gestion-projet.info, *.informaticien-manager.info, *.ingenieur-alternance.info, *.ingenieur-informatique.fr, *.ingenieur-manager.info, *.ismp.fr, *.licence-professionnelle.info, *.prepa-g4.fr, 4im.fr, 4im.info, 4mm.fr, 4tech.fr, anciens-g4.fr, ecole-ingenieur.info, ecole-multimedia.info, etu4.com, g4h.fr, gestion-projet.info, informaticien-manager.info, ingenieur-alternance.info, ingenieur-informatique.fr, ingenieur-manager.info, institut-g4.fr, ismp.fr, licence-professionnelle.info, prepa-g4.fr, www.institut-g4.fr

Certificate Authority Authorization (CAA)

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