![]() ![]() These faulty browsers will DDOS any hosting EasyList chooses as long as they continue to use the easylist.to domain.ĪdGuard re-hosts all filter lists on its own servers, so if you use our apps or browser extensions this problem doesn’t affect you directly. EasyList may need to change the domain name.Many ad blockers cannot download filters updates because EasyList is throttled.(The screenshot of the message was passed to me by one of EasyList maintainers) Moreover, serving EasyList actually may violate the CloudFlare ToS. Unfortunately, CloudFlare does not allow non-enterprise users use that much traffic, and now all requests to the EasyList file are getting throttled.ĮasyList tried to reach out to CloudFlare support, but the latter said they could not help. Even so, we continue to serve about 100TB of “Access Denied” pages monthly!ĮasyList is hosted on Github and proxied with CloudFlare. When we encountered a similar problem last year, we found a simple solution: block the undesired traffic from these apps. It can even happen when the browser is running in the background. It tries to download filters updates on every startup, and on Android it may happen lots of times per day. The problem is that this browser has a very serious flaw.This browser is forked by a couple of other browsers that are very popular in India.There’s an open source Android browser (now seemingly abandoned) that implements ad-blocking functionality.What happened to us bears a striking resemblance to what is now crippling EasyList: After investigating the issue, we found out that two apps with ad-blocking functionality were abusing our servers. Last November, our bandwidth usage shot up through the roof for no good reason. This whole situation rang a bell with us, because last year we had to grapple with the very same problem. The source of that dramatic surge, it turned out, were Android devices from India. The overall traffic quickly snowballed from a couple of terabytes per day to 10-20 times that amount. What happenedĪ couple of weeks ago EasyList maintainers saw a huge spike in traffic. However, if you try to download this file now, you'll see that it takes about 5 minutes to do so, even though the file size is not that big. If you're using an ad blocker, there's a 99.99% chance you are using EasyList or one of its derivatives.Īt its core, EasyList is basically just a text file available at the following address. There are many popular lists ( AdGuard filters is one of them), but EasyList has always stood out as the most prominent and the most popular one. ![]() EasyList is a community-run project that maintains one of the world’s most popular ad blocking filter lists. You may not be aware of it, but the work of every ad blocker is powered by “filter lists” - lists of rules that tell the ad blocker how exactly it should block ads. However, the origin of the issue is still unclear. 21st October Update: Thanks to Cloudflare, the problem with servers overload was resolved. ![]()
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