SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
fastly.net
SSL/TLS Certificate
SSL/TLS Certificate for fastly.net
Valid- Issued by (CA)
- Certainly
- Subject
- fastly.net
- Valid from
- Aug 7, 2026
- Valid until
- Sep 6, 2026 (27 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 79DB6A92A23665E3F26986E2C762E9E57FAE
- SHA-256 fingerprint
- 57:1B:A0:FB:D9:1F:96:9F:38:69:46:5B:DC:EE:A7:C7:F9:09:A2:25:7B:84:A8:5F:1C:07:91:50:C2:7A:76:9D
- Chain
- Certainly Intermediate R1 → Starfield Root Certificate Authority - G2
Certificate Authority Authorization (CAA)
CAA restricts issuance to certainly.com, globalsign.com, letsencrypt.org; we couldn't map the serving CA (Certainly) to one of these identifiers.
This certificate has been served since Aug 4, 2026.
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Uptime
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DNS changes
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TLS certificate
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