of the website after it has loaded. Both UBlock Origin and AdGuard's browser extension and apps also support this type of filtering. Filter subscriptions Users can add external filtersets. Adblock Plus includes the ability to use one or more external filter subscriptions that are automatically updated. Filterset.G is incompatible with this system (and Adblock Plus specifically recommends against using Filterset.G for other reasons as well), but other filtersets can be added by typing their addresses. A list of known Adblock Plus subscriptions is maintained on the Adblock Plus official website. EasyList was the most popular Adblock Plus filter list as of August 2011, with over 12 million subscribers. Created by Rick Petnel, it became officially recommended by the Adblock Plus program, and filter lists for other languages were built on top of it. Petnel died in 2009 following which Palant placed a user named "Ares2" as the new maintainer. The filter lists EasyList and EasyPrivacy are both subscribed by default in uBlock Origin but not in Adblock Plus itself. Both of these filter lists will also be used by Google Chrome starting February 15, 2018, on sites not complying with the Better Ads Standards. In May 2013, the former second most popular Adblock Plus filter list, Fanboy's List, was merged with EasyList. Legal challenges In December 2014, it was reported that Zeit Online and Handelsblatt had brought suit against Eyeo GmbH in the . In April 2015 the court rejected the suit. Axel Springer SE has filed a court order for the removal of the Adblock Plus post though there is a redacted version and people have posted videos and posts on how to get around the Axel Springer wall. However, in April 2018, Germany's Federal Constitutional Court found in favor of Eyeo and ruled that Adblock Plus did not violate any laws. In August 2017, the Admiral advertising company sent a Digital Millennium Copyright Act (DMCA) takedown notice to EasyList to remove the domain functionalclam.com from the blacklist. Admiral argues that the domain is part of its access control technology of its advertising platform, and therefore the blacklisting is an attempt to circumvent a technical protection measure, which is forbidden under the DMCA section 1201. Detection Some webmasters have used JavaScript to detect the effects of the popular Adblock Plus filters. This is done by generating a honeypot-like URL, verifying its delivery, and DOM verification after the web page