*.seoultech.ac.kr1 observationsIssuerThawte TLS RSA CA G1 DigiCert IncValidity2025-10-17 to 2026-11-06Observed2026-10-15 05:43:56to2026-10-15 05:43:56SHA-25621abf4fad33c76f88673679d82d644a20bd99a851e96d507580a8b0233460c67⧉