SSL/TLS Certificate Lookup

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

astu1.com

SSL/TLS Certificate

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SSL/TLS Certificate for astu1.com

Valid
Issued by (CA)
Google Trust Services
Subject
astu1.com
Valid from
Jul 18, 2026
Valid until
Oct 16, 2026 (86 days remaining)
Public key
EC 256-bit
Serial
2FA16D3E587B8D2C135AA358272EAEB3
SHA-256 fingerprint
AE:FF:A4:7F:DB:21:16:08:7B:D6:96:F4:D1:14:E4:81:1D:C4:95:25:D6:8D:DC:EB:6A:6D:CC:E9:9B:B0:83:58
Chain
WE1 → GTS Root R4
Subject Alternative Names (2)
*.astu1.com, astu1.com

Certificate Authority Authorization (CAA)

No CAA policy is published for this domain — any certificate authority may issue for it.