Certificate Info chrome extension

What is Certificate Info?

Certificate Info is a developer tools chrome extension. it's a free extension , it has 2,000+ active users since released its first version, it earns an average rating of 3.90 from 20 rated user, last update is 1477 days ago.

What’s new in version 0.2.1?

                Please read the description carefully before installing:

This is a simple extension that displays the validation level, expiration and more info of the SSL / TLS server certificate of the website you visit to help determine the identity of the server.

CAVEATS:

1. Due to the limitation of Chrome's extension API, the validation info is fetched and processed by our backend API, which only receives the hostname (not the full URL) you visit. Note that in TLS, hostnames are already sent in plaintext to the server because of SNI, regardless if you use this extension or not. For the same reason, the extension will only be able to display information of hosts available to connect from the public network.

2. This extension extracts certificate info and performs very basic validation, it should be used as a reference and shouldn't be relied on for certificate validation.

3. Certificate data is cached for 5 minutes.

This extension is open-source (GPLv3): https://github.com/blupig/certificate-info

Feel free to contribute or submit any feedback on GitHub.            

How to install Certificate Info?

You could download the latest version crx file or older version files and install it.

Preview of Certificate Info

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Reviews of certificate info:

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Max March 29th, 2023

IPv6 support is missing. IPv6 website shows error

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Ling Zhang July 24th, 2018

great plugin, finally found one that works

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xuan zhang July 18th, 2018

works like a charm

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