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Certificate audit

vercel.com SSL certificate check

SEO page with a cached certificate, TLS and chain-of-trust inspection result.

SSL certificate

Validity

Valid

Days remaining

70

Chain status

Trusted chain

Issuer

CN=R12,O=Let's Encrypt,C=US

Subject

CN=*.vercel.com

Valid from

5/23/2026 8:55:50 AM

Valid until

8/21/2026 8:55:49 AM

TLS version

TLS 1.3

Cipher

TLS_AES_128_GCM_SHA256

Subject alternative names

*.vercel.comvercel.com

Certificate chain

Certificate 1 /leaf

*.vercel.com

Issuer: CN=R12,O=Let's Encrypt,C=US

Until: 8/21/2026 8:55:49 AMCA: falseSelf-signed: false

Certificate 2 /last-presented

R12

Issuer: CN=ISRG Root X1,O=Internet Security Research Group,C=US

Until: 3/12/2027 11:59:59 PMCA: trueSelf-signed: false

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