Page Structure Ready Time

Unlike Browser processing time, this number is counted from the start of navigation (the click) to the browser's standard DOM Interactive event; meaning it includes network and server time too. The page-ready speed chart compares this same time across device, browser or operating system.

If you want one number to understand how long the user actually waited, this is it — it shows the entire chain from the click to a page whose structure is ready, all in one. The device-split chart usually reveals a meaningful gap between mobile and desktop; since mobile processing power is lower, optimization priority usually goes to the mobile experience.