Is there something wrong with their certificate? Chromium is saying https isn't valid

Looks good to me on both brave (on android) and firefox (on windows 11). Lets see what ssl labs says (it is running now)

https://www.ssllabs.com/ssltest/analyze.html?d=mistral.ai&la...

Looks good so far, A+ on ipv4 as well as ipv6

Edit: I also asked Gemini 3.1 Pro to analyze the certificate and it looks good

It looks like you have shared an `about:certificate` URL containing a chain of three Base64-encoded X.509 TLS/SSL certificates. This specific chain is used to secure connections to *mistral.ai*.

Here is the decoded breakdown of the certificate chain you provided:

## Certificate Chain Overview

This is a standard three-tier certificate chain issued by Google Trust Services for the Mistral AI domain.

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### 1. Leaf Certificate (End-Entity)

This is the specific certificate issued to the website to verify its identity and encrypt traffic.

* *Subject (Common Name):* `mistral.ai` * *Subject Alternative Names (SANs):* `mistral.ai`, `workers.mistral.ai` * *Issuer:* WE1 (Google Trust Services) * *Valid From:* June 13, 2026 * *Valid To:* September 11, 2026 * *Key Type:* Elliptic Curve (ECDSA)

### 2. Intermediate Certificate

This certificate acts as a bridge between the website's certificate and the trusted Root CA.

* *Subject:* WE1 (Google Trust Services) * *Issuer:* GTS Root R4 (Google Trust Services LLC) * *Valid From:* December 13, 2023 * *Valid To:* February 20, 2029 * *Key Type:* Elliptic Curve (ECDSA)

### 3. Root Certificate

This is the foundational trust anchor pre-installed in browsers and operating systems.

* *Subject:* GTS Root R4 (Google Trust Services LLC) * *Issuer:* GTS Root R4 (Self-signed) * *Valid From:* June 22, 2016 * *Valid To:* June 22, 2036 * *Key Type:* Elliptic Curve (ECDSA)

thanks I'm going to have to check whats going on with my setup then