methodology / Performance / #33

Desktop PageSpeed score

live factor #33 · Performance · scoring impl: implemented · weight 2%

What we measure

We score desktop performance separately from mobile because both audiences matter. A site that's fast on phones but slow on laptops still loses half its visitors.

How to improve your score

Same techniques as mobile — image optimization, JavaScript deferral, CDN delivery, and trimming unused CSS. Desktop usually scores higher than mobile because of better network and CPU, so a low desktop score signals real problems.

Data source

Data source for this factor is not yet documented.

Implementation notes

Add `strategy=desktop` to the existing PSI call and store the result alongside the mobile score.

Scoring

Scoring formulas are versioned with the methodology. The current method (v1.1.0) maps raw measurements to pass, warn, fail. Factor weights determine how much each contributes to the composite — see the methodology index for the full table.

Version history

← back to methodology