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Certificate audit

nextjs.org SSL certificate check

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

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SSL certificate

Validity

Valid

Days remaining

37

Chain status

Trusted chain

Issuer

CN=R13,O=Let's Encrypt,C=US

Subject

CN=*.nextjs.org

Valid from

5/22/2026 12:17:10 AM

Valid until

8/20/2026 12:17:09 AM

TLS version

TLS 1.3

Cipher

TLS_AES_128_GCM_SHA256

Subject alternative names

*.nextjs.orgnextjs.org

Certificate chain

Certificate 1 /leaf

*.nextjs.org

Issuer: CN=R13,O=Let's Encrypt,C=US

Until: 8/20/2026 12:17:09 AMCA: falseSelf-signed: false

Certificate 2 /last-presented

R13

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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