Avast Online Security
Protect yourself from fake websites and phishing scams with our free browser security and web reputation plugin.
Anti-Phishing Protection For Your Browser
Avast Online Security checks each website you visit and warns you if it’s unsafe or if it simply has a bad reputation. All this is based on input from our community of 400 million users who watch each other’s backs. And, as a bonus, we also tell you if you’re being tracked.
Get Safer Search Results
View ratings for your searches instantly, based on feedback gathered from our 400 million users.
Avoid Malicious Websites
Be warned of phishing scams, malicious links and websites infected with malware before you access them.
Spot & Block Trackers
Stop websites from collecting data on you and tracking your browsing history via cookies.
Easy & Free Browser Security
Add our Avast Online Security plugin to your browser, make sure it’s enabled, and then you can start browsing without a care. You can easily check the rating of any website just by hovering over the link, or rate it yourself with a thumbs up or thumbs down to help other users make the most of their browsing experience.