Best first

How to read these figures

The colour says what a bar IS, not how it scores: the accent is the one this page is about, grey is everything it is compared with, and the hollow bar is the web overall — the ruler, not a rival. Whether a figure is above or below the rest of the web is in the number and in the arrow beside it.

Every figure here comes from a sample, not from counting every site — so it carries a margin: how much it could move if we had happened to sample different pages. A figure measured on a thousand pages has a wide margin; one measured on a hundred thousand has a narrow one. It matters for one thing: two figures that differ by less than the wider of their margins are not one above the other, they are tied. That is why nothing here has a position number.

TechnologyAWCSMonth by month
Booster Page Speed Optimizer

Booster Page Speed Optimizer

Sample
n=5
Coverage
100.0%
Margin
±23.70
The web overall
19.9%

Two figures closer together than ±23.70 are tied, not ranked.

Booster Page Speed Optimizer scores 57.3%57.3%
Booster Page Speed Optimizer: 4 months, no significant change= +10.7
PerfectApps Swift

PerfectApps Swift

Sample
n=2
Coverage
100.0%
Margin
±37.48
The web overall
19.9%

Two figures closer together than ±37.48 are tied, not ranked.

PerfectApps Swift scores 46.7%46.7%
Sections.design Shopify App Optimization

Sections.design Shopify App Optimization

Sample
n=1
Coverage
100.0%
Margin
±53.00
The web overall
19.9%

Two figures closer together than ±53.00 are tied, not ranked.

Sections.design Shopify App Optimization scores 46.7%46.7%
Sections.design Shopify App Optimization: 3 months, no significant change= +20.0
FlyingPress

FlyingPress

Sample
n=3
Coverage
75.0%
Margin
±30.60
The web overall
19.9%

Two figures closer together than ±30.60 are tied, not ranked.

FlyingPress scores 35.6%35.6%
FlyingPress: 4 months, no significant change= +22.4
Flying Pages

Flying Pages

Sample
n=3
Coverage
100.0%
Margin
±30.60
The web overall
19.9%

Two figures closer together than ±30.60 are tied, not ranked.

Flying Pages scores 34.9%34.9%
Flying Pages: 4 months, no significant change= +24.1
Performant Translations

Performant Translations

Sample
n=6
Coverage
75.0%
Margin
±21.64
The web overall
19.9%

Two figures closer together than ±21.64 are tied, not ranked.

Performant Translations scores 26.7%26.7%
Performant Translations: 4 months, no significant change= +14.3
Priority Hints

Priority Hints

Sample
n=5,394
Coverage
96.6%
Margin
±0.72
The web overall
19.9%

Two figures closer together than ±0.72 are tied, not ranked.

Priority Hints scores 25.9%25.9%
Priority Hints: 4 months, up▲ +2.4
Cloudflare Rocket Loader

Cloudflare Rocket Loader

Sample
n=120
Coverage
100.0%
Margin
±4.84
The web overall
19.9%

Two figures closer together than ±4.84 are tied, not ranked.

Cloudflare Rocket Loader scores 24.9%24.9%
Cloudflare Rocket Loader: 4 months, up▲ +6.9
Image Placeholders

Image Placeholders

Sample
n=16
Coverage
88.9%
Margin
±13.25
The web overall
19.9%

Two figures closer together than ±13.25 are tied, not ranked.

Image Placeholders scores 21.1%21.1%
Image Placeholders: 4 months, no significant change= +4.5
a3 Lazy Load

a3 Lazy Load

Sample
n=12
Coverage
100.0%
Margin
±15.30
The web overall
19.9%

Two figures closer together than ±15.30 are tied, not ranked.

a3 Lazy Load scores 20.0%20.0%
a3 Lazy Load: 4 months, no significant change= +4.8
Modern Image Formats

Modern Image Formats

Sample
n=28
Coverage
93.3%
Margin
±10.02
The web overall
19.9%

Two figures closer together than ±10.02 are tied, not ranked.

Modern Image Formats scores 18.4%18.4%
Modern Image Formats: 4 months, no significant change= +4.1
Google Cloud Trace

Google Cloud Trace

Sample
n=35
Coverage
94.6%
Margin
±8.96
The web overall
19.9%

Two figures closer together than ±8.96 are tied, not ranked.

Google Cloud Trace scores 17.3%17.3%
Google Cloud Trace: 4 months, no significant change= −7.8
Cloudflare Zaraz

Cloudflare Zaraz

Sample
n=12
Coverage
100.0%
Margin
±15.30
The web overall
19.9%

Two figures closer together than ±15.30 are tied, not ranked.

Cloudflare Zaraz scores 17.1%17.1%
Cloudflare Zaraz: 4 months, no significant change= −12.0
Partytown

Partytown

Sample
n=8
Coverage
100.0%
Margin
±18.74
The web overall
19.9%

Two figures closer together than ±18.74 are tied, not ranked.

Partytown scores 16.5%16.5%
Partytown: 4 months, no significant change= +3.1
Turbolinks
Turbolinks scores 15.5%15.5%
Turbolinks: 4 months, no significant change= −3.8
Perfmatters

Perfmatters

Sample
n=17
Coverage
94.4%
Margin
±12.85
The web overall
19.9%

Two figures closer together than ±12.85 are tied, not ranked.

Perfmatters scores 15.3%15.3%
Perfmatters: 4 months, no significant change= −8.2
Enhanced Responsive Images

Enhanced Responsive Images

Sample
n=12
Coverage
85.7%
Margin
±15.30
The web overall
19.9%

Two figures closer together than ±15.30 are tied, not ranked.

Enhanced Responsive Images scores 15.0%15.0%
Enhanced Responsive Images: 4 months, no significant change= −0.3
WP Fastest Cache

WP Fastest Cache

Sample
n=66
Coverage
98.5%
Margin
±6.52
The web overall
19.9%

Two figures closer together than ±6.52 are tied, not ranked.

WP Fastest Cache scores 14.8%14.8%
WP Fastest Cache: 4 months, no significant change= +1.2
Performance Lab

Performance Lab

Sample
n=44
Coverage
93.6%
Margin
±7.99
The web overall
19.9%

Two figures closer together than ±7.99 are tied, not ranked.

Performance Lab scores 14.3%14.3%
Performance Lab: 4 months, no significant change= +0.5
Optimization Detective

Optimization Detective

Sample
n=13
Coverage
92.9%
Margin
±14.70
The web overall
19.9%

Two figures closer together than ±14.70 are tied, not ranked.

Optimization Detective scores 13.9%13.9%
Optimization Detective: 4 months, no significant change= +0.9
WP-Optimize

WP-Optimize

Sample
n=82
Coverage
93.2%
Margin
±5.85
The web overall
19.9%

Two figures closer together than ±5.85 are tied, not ranked.

WP-Optimize scores 13.6%13.6%
WP-Optimize: 4 months, no significant change= +1.0
Autoptimize

Autoptimize

Sample
n=125
Coverage
97.7%
Margin
±4.74
The web overall
19.9%

Two figures closer together than ±4.74 are tied, not ranked.

Autoptimize scores 13.2%13.2%
Autoptimize: 4 months, no significant change= −4.3
Turbo

Turbo

Sample
n=31
Coverage
96.9%
Margin
±9.52
The web overall
19.9%

Two figures closer together than ±9.52 are tied, not ranked.

Turbo scores 12.2%12.2%
Turbo: 4 months, no significant change= +4.0
EWWW Image Optimizer

EWWW Image Optimizer

Sample
n=90
Coverage
97.8%
Margin
±5.59
The web overall
19.9%

Two figures closer together than ±5.59 are tied, not ranked.

EWWW Image Optimizer scores 11.3%11.3%
EWWW Image Optimizer: 4 months, down▼ −6.7
Image Prioritizer

Image Prioritizer

Sample
n=8
Coverage
88.9%
Margin
±18.74
The web overall
19.9%

Two figures closer together than ±18.74 are tied, not ranked.

Image Prioritizer scores 9.5%9.5%
Image Prioritizer: 4 months, no significant change= −6.7
Embed Optimizer

Embed Optimizer

Sample
n=3
Coverage
60.0%
Margin
±30.60
The web overall
19.9%

Two figures closer together than ±30.60 are tied, not ranked.

Embed Optimizer scores 8.9%8.9%
Embed Optimizer: 4 months, no significant change= −1.2
Web Worker Offloading

Web Worker Offloading

Sample
n=3
Coverage
100.0%
Margin
±30.60
The web overall
19.9%

Two figures closer together than ±30.60 are tied, not ranked.

Web Worker Offloading scores 8.9%8.9%
Web Worker Offloading: 4 months, no significant change= −1.9
Speculative Loading

Speculative Loading

Sample
n=15
Coverage
88.2%
Margin
±13.68
The web overall
19.9%

Two figures closer together than ±13.68 are tied, not ranked.

Speculative Loading scores 8.3%8.3%
Speculative Loading: 4 months, no significant change= −2.8