Does anyone know what this is?

builder161

I keep getting this pop-up when I go to the website LaunchmyNFT.io

Can anyone tell what it is. I searched for gateway.pinit.io:443 but don't come up with anything. Would appreciate info. if anyone has some.

Flexx

https://community.bitdefender.com/en/discussion/105060/does-anyone-know-what-this-is

Certificate Authentication Prompt Breakdown:

What’s Happening:
When you open the page, a pop-up appears asking you to select a certificate. This is a type of digital ID that some websites use to verify your identity.

Why You’re Seeing This:
The website is asking for extra authentication to access a secure part of the site. Your computer has a certificate from another app (in this case, Microsoft Your Phone), so it's being offered as an option.

Important Note About the Certificate:
The certificate shown in the prompt expired on May 21, 2025, which means it is no longer valid for authentication. The website will not accept an expired certificate, and your browser is likely prompting you because it cannot find a valid one to use.

This is likely the reason you are seeing this pop-up — the system is trying to authenticate with an expired certificate and is asking you to choose an alternative, which currently doesn't exist.

What You Should Do:

You have two options:

1. Cancel the process.
   Since the certificate is expired, there is no way for the authentication to succeed with the credentials currently available on your system. If you're just browsing or viewing public content (like an NFT collection), you can safely click "Cancel" and continue using the site as normal.
2. Contact the website administrator or support team.
   If you're supposed to have access to a secure area, you'll need to obtain a new, valid client certificate. Only then can you complete the authentication process successfully.

Recommended for Most Users:
Click "Cancel" unless you are certain you need to authenticate with a valid certificate.

Regards