This is an adblock alert for November 9, 2017.

A single commit to EasyList this morning broke a mix of national and regional sites, making their homepages look like it’s 1999.  ​

Screen-Shot-2017-11-09-at-5.21.50-PM-2
MSN broken by adblockers

​Commits to EasyList are the way that new filters get added to block calls or elements by tens of millions of adblockers worldwide. Today’s commit appears to have targeted multiple sites and elements that ultimately led to complete site disruption.

Screen-Shot-2017-11-09-at-5.22.25-PM-1
Edmunds broken by adblockers

​It’s unusual for an element-based block to cause this much havoc, but the issue may relate to a CDN used by affected sites having problems dealing with the block. Attempting to recover adblock losses with a highly integrated CDN-based approach may contribute to site impacts 9 hours after the commit first went live. Commits to EasyList like this are typically distributed to worldwide adblockers over time, so the largest impacts to users and publishers may still be coming.

Screen-Shot-2017-11-09-at-5.20.00-PM-1
OrlandoSentinel broken by adblockers


The following sites appear to be impacted:
boston.com, cnet.com, edmunds.com, hearthead.com, mccall.com, courant.com, chicagotribune.com, capitalgazette.com, carrollcountytimes.com, sun-sentinel.com, dailypress.com, orlandosentinel.com, sandiegouniontribune.com, baltimoresun.com, citypaper.com, metacritic.com, msn.com, nationalpost.com, oregonlive.com, pcmag.com, saveur.com, vancouversun.com, windsorstar.com, edmontonjournal.com, ottawacitizen.com, montrealgazette.com, theprovince.com, leaderpost.com, calgaryherald.com, financialpost.com, thestarphoenix.com, wowhead.com, zam.com

 

ABOUT ADMIRAL
Admiral helps publishers size and solve their adblock losses. Our solution includes 24/7 adblock monitoring services that help identify and address blocking impacts like today’s. More publishers worldwide trust Admiral to help with adblock losses than anyone in the industry. If we can help your site with today’s block or recover from future blocks, email info@getadmiral.com or request a demo at http://getadmiral.com We’d be happy to help.