* Client-Side Metrics Include
* Wiki: https://tiny.amazon.com/cpso0wg6
* Needs to be included at the top of pages because it tracks latency--
* ue_t0 needs to be as close to body load as possible.
* - ue.tag maps to URLType dimension of OnlineQueryLog in PMET. Because we cannot add
* custome data to other dimensions in PMET through CSM, we are replicating it thrice to
* cover each store, page type, and the intersections of the two.
* - Whitelists are listed in the usage guide:
John Carter and the mighty Tars Tarkas at last uncover the shadowy forces attempting to plunge Mars into a global war. Unfortunately, they do so by blundering face-first into a trap! But their enemies don't want them dead - not right away. A terrible revelation awaits our heroes in Warlord of Mars #29: Yellow Supremacy, the thrilling penultimate installment of the "Savages of Mars" story arc!