www.shieldtech.au1 observationsIssuerYR2 Let's EncryptValidity2026-10-05 to 2027-01-03Observed2026-10-18 15:53:09to2026-10-18 15:53:09SHA-25661f4fe12389836229d3e89d691e73dd982a2767327f204f4b240434d32128f7f⧉