*.sparkscholar.co.za1 observationsIssuerYR2 Let's EncryptValidity2026-09-10 to 2026-12-09Observed2026-10-05 22:41:24to2026-10-05 22:41:24SHA-256ee335607c1b7051fbbd83919426c6af49bb5640d023aff811e6fabc87e6ad975⧉