Certificate Info icon

Certificate Info

Extension Actions

CRX ID
jhldepncoippkjgjkmambfglddmjdmaj
Description from extension meta

Shows TLS certificate info and validation level of the servers you connect.

Image from store
Certificate Info
Description from store

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.

Latest reviews

Max
IPv6 support is missing. IPv6 website shows error
Max
IPv6 support is missing. IPv6 website shows error
Luca Vinci
Excellent! Is it possible to use your API? If possible you can have your contact? Tanks.
Teemu Harju
As working as a IT admin specialist, what I would really like to see that icon color would match how quickly certification expires. For example, green color: certificate doesn't expire in 60 days, orange color 30 days, red color 10 days, or something similar. Even better, if experience date would be actually visible all the time without clicking the icon. I would love somebody to implement this my own idea. You heard from me, I would appreciate to be mentioned in the credits.
Teemu Harju
As working as a IT admin specialist, what I would really like to see that icon color would match how quickly certification expires. For example, green color: certificate doesn't expire in 60 days, orange color 30 days, red color 10 days, or something similar. Even better, if experience date would be actually visible all the time without clicking the icon. I would love somebody to implement this my own idea. You heard from me, I would appreciate to be mentioned in the credits.
Stefan H
would also love to see the valid-until-date at a glance!
Stefan H
would also love to see the valid-until-date at a glance!
Ling Zhang
great plugin, finally found one that works
Ling Zhang
great plugin, finally found one that works
xuan zhang
works like a charm
xuan zhang
works like a charm
Kun Qian
Does what exactlyit says in the description.
Kun Qian
Does what exactlyit says in the description.
Frank Schneidewind
Pretty nice, would be cool to see the valid-until-date
Frank Schneidewind
Pretty nice, would be cool to see the valid-until-date
Stephen Sadowski
Doesn't display any actual certificate information about the chain, just the issuer and whether it's valid. Relatively useless.
Stephen Sadowski
Doesn't display any actual certificate information about the chain, just the issuer and whether it's valid. Relatively useless.
Behnam Aghajani
not working...
Behnam Aghajani
not working...
Da De
Очень мало информации! Хотелось бы более подробную инфу по сертификату, а не только кем выдан!
Scott Truger
Doesn't pull the cert from Chrome itself. It does not pick up a proxy cert. Somehow it's evaluating the cert published on the web, not the actual cert that Chrome is getting/using.
Scott Truger
Doesn't pull the cert from Chrome itself. It does not pick up a proxy cert. Somehow it's evaluating the cert published on the web, not the actual cert that Chrome is getting/using.
Meiyan Xie
So useful! I love it! It's very convenient!
Meiyan Xie
So useful! I love it! It's very convenient!