Adblockers such as uBlock already block many of these since they're hosted by ad agencies. If someone is determined they can bypass the filter easily though; yo

Adblockers such as uBlock already block many of these since they're hosted by ad agencies. If someone is determined they can bypass the filter easily though; you'd need a static filter for each of these then. The only global solution would be to block all remote images which would likely break many websites. Also, nowadays so many sophisticated tracking methods exist I'm not sure it's worth the hassle.