SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
a-star.edu.sg
SSL/TLS Certificate
SSL/TLS Certificate for a-star.edu.sg
Valid- Issued by (CA)
- Amazon
- Subject
- a-star.edu.sg
- Valid from
- Jun 17, 2026
- Valid until
- Dec 31, 2026 (46 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 05B1585F2632FEC4C6FB58706EB9CAD6
- SHA-256 fingerprint
- F4:5F:01:85:DB:F2:88:E0:D0:12:EB:B8:84:48:4B:24:6D:61:42:6E:FA:6A:8F:94:C8:CC:D7:00:F9:20:7B:DE
- Chain
- Amazon RSA 2048 M01 → Amazon Root CA 1 → Starfield Services Root Certificate Authority - G2
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
This certificate has been served since Aug 5, 2026.
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Uptime
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DNS changes
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TLS certificate
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