Issue link: https://read.uberflip.com/i/1146286
AOL | 113 Rule 4: Gzip Components One of the stylesheets and 20 of the scripts aren't compressed. Rule 9: Reduce DNS Lookups Eleven domains are used, meaning delays from extra DNS lookups are more likely. There are four beacons served in the page, and three more are sent after the page has finished loading. A nice performance aspect of these beacons is that they use the "204 No Content" status code. This status code is ideal for beacons because it does not contain an entity body, making the responses smaller.