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![]() Performing DNS prefetch or pre-connect on filtered URLs is wasteful, as we would block any actual use further down the line. A bunch of websites perform DNS prefetch and/or pre-connect to trackers as well, for example: ``` prefetch DNS for 'https://adserver-us.adtech.advertising.com/' prefetch DNS for 'https://secure.adnxs.com/' prefetch DNS for 'https://bidder.criteo.com/' prefetch DNS for 'https://static.criteo.net/' prefetch DNS for 'https://cdn.krxd.net/' prefetch DNS for 'https://widgets.outbrain.com/' prefetch DNS for 'https://images.outbrain.com/' prefetch DNS for 'https://log.outbrain.com/ prefetch DNS for 'https://amplifypixel.outbrain.com/' prefetch DNS for 'https://odb.outbrain.com/' prefetch DNS for 'https://js-sec.indexww.com/' prefetch DNS for 'https://as-sec.casalemedia.com/' prefetch DNS for 'https://as.casalemedia.com/' prefetch DNS for 'https://sofia.trustx.org/' prefetch DNS for 'https://c.amazon-adsystem.com/' prefetch DNS for 'https://s.amazon-adsystem.com/' prefetch DNS for 'https://aax.amazon-adsystem.com/' prefetch DNS for 'https://t.teads.tv/' prefetch DNS for 'https://beacon.krxd.net/' pre-connect to 'https://www.google-analytics.com/' pre-connect to 'https://www.googletagmanager.com/' ``` |
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.. | ||
ContentFilter.cpp | ||
ContentFilter.h | ||
FrameLoader.cpp | ||
FrameLoader.h | ||
ImageLoader.cpp | ||
ImageLoader.h | ||
ImageResource.cpp | ||
ImageResource.h | ||
LoadRequest.cpp | ||
LoadRequest.h | ||
ProxyMappings.cpp | ||
ProxyMappings.h | ||
Resource.cpp | ||
Resource.h | ||
ResourceLoader.cpp | ||
ResourceLoader.h |