I can reproduce the broken layout, there is no strict blocking involved. It appears to be geo dependent. I can reproduce the breakage with a US IP on the first page load. No breakage if I use a EU IP. Code: @@||guce.advertising.com/collectIdentifiers?sessionId$css,script,domain=techcrunch.com fixes the issue. I can only reproduce the breakage after I delete cookies and I can simply reload and the site works fine, so I am not sure if the exception is really necessary.