*.sparkscholar.co.za6 observationsIssuerYR2 Let's EncryptValidity2026-09-10 to 2026-12-09Observed2026-10-03 18:35:41to2026-10-17 04:48:59SHA-256ee335607c1b7051fbbd83919426c6af49bb5640d023aff811e6fabc87e6ad975⧉