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Connection

Blacklisting

Learn more

DNS

How do I prevent DNS leaks?

Read our guide on DNS leaks.

What are DNS leaks and how can they affect me?

A DNS server is the first point of contact that your browser makes when you try to access information over the Internet. This is the case for every URL you visit, every file you download, and every image that loads on a website, including ads.

The DNS server therefore knows which pages you are visiting and which resources you are looking at, and as a result, you are constantly leaking information to your DNS server provider about your activity. Our DNS leaks guide has information on how to prevent this.

WebRTC

How do I disable WebRTC?

Read our guide on WebRTC.

What is WebRTC?

WebRTC is a technology that allows users to communicate with video and audio directly in the browser without any plugins installed. An unfortunate side effect is that your real IP is at risk for being exposed, stripping you of your anonymity. Our WebRTC guide has more information.

Blacklisting

My IP is blacklisted. What can I do?

Try switching to another one of our servers.

How does being blacklisted affect me?

You will be blocked from accessing certain websites and forums. You may also encounter more CAPTCHAs.

What is blacklisting?

When an IP address has been flagged for unwanted activity, such as spamming, it gets listed on an anti-spam database, also known as a blacklist. When you connect to the Internet from a blacklisted IP, certain websites and forums will block your access.

Why would a Mullvad server be blacklisted?

Most likely because someone, while connected to our service, engaged in unwanted activity which caused that particular Mullvad server to be flagged.