* 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:
Nightwing's long and winding road has landed him under Deathstroke's thumb in the most vicious collection of villains ever assembled! Now, it's time for Dick Grayson to take matters into his own hands. But if he's trading Deathstroke's loyalty for Lex Luthor's, is his life getting any better?