methodology / Performance / #33
Desktop PageSpeed score
#33 · Recommended · Web Quality · weighted · Performance · weight 2% · impl implemented · method v1.2.0
Web Quality factor
This factor is part of Web Quality — the weighted 0..100 score that sits above Web Standards. Its weight depends on what kind of site is being measured. Web Standards items take priority; this factor only enters the score once Web Standards passes.
- Base weight
- 0.7 applied to every site type unless overridden below
- Why this weight
- Desktop PSI — secondary to mobile but still relevant for SaaS / B2B traffic.
Per-site-type overrides
| Site type | Weight | Δ vs base |
|---|---|---|
| E-commerce | 0.8 | +0.1 |
| Personal site | 0.4 | -0.3 |
| Government | 0.5 | -0.2 |
| SaaS / Product | 0.9 | +0.2 |
Site types not listed inherit the base weight.
What this means for your business
Even if most visitors are on phones, a sluggish desktop experience hurts the customers most likely to fill out a long form, book a service, or buy something expensive.
Plain title: How fast your site loads on a laptop
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.
Facts
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 (v1.2.0) 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
| Version | Change | Date |
|---|---|---|
| v1.2.0 | Factor introduced. Status: live. Scoring impl: implemented. | 2026-04-25 |