Certificate Decoder

A certificate is a signed pile of ASN.1 that nothing will show you without a command line. Paste the PEM here and read it in plain terms, without sending it anywhere.

The certificate

Only the public certificate, never a private key. Base64 without the header lines works too.

Who and when
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Subject
Nothing read yet.
Issuer
Nothing read yet.
Names it covers
Nothing read yet.
Key and signature
Nothing read yet.
Fingerprints
Nothing read yet.
Extensions
Nothing read yet.