What is Certificate Info Viewer
This tool parses SSL/TLS certificate data from pasted text, uploaded files, or domain lookup. It helps with certificate diagnostics and compliance checks.
Key Features
- Three input modes: paste, file, and domain.
- Shows subject, issuer, and detailed certificate fields.
- Supports certificate and public key downloads.
- Includes mapped error hints for common failures.
Steps
- Choose an input mode.
- Provide certificate content or domain.
- Click Query and complete captcha.
- Review parsed details and download artifacts if needed.
FAQ
Why can domain lookup fail?
Possible reasons include unreachable host, blocked port, broken chain, or temporary network issues.
Why are some fields empty?
Not all certificates contain every extension field. Missing values can be normal.