WebPageTests Like YSlow

Monitis

65% match · Legacy

5.87 Mediocre

http_load

65% match · Legacy

5.11 Mediocre

SEO SiteCheckup

63% match · Page Analysis

6.41 Fair

Pylot

63% match · Legacy

4.53 Poor

RadView WebLOAD

62% match · Legacy

6.72 Fair

ARC Toolkit

61% match · Browser Extension

7.18 Good

httperf

60% match · Legacy

7.18 Good

The Grinder

56% match · Legacy

5.98 Mediocre

Boom

55% match · Legacy

6.58 Fair

Munin

55% match · Legacy

6.47 Fair

GiftOfSpeed Website Speed Test

55% match · Page Analysis

6.38 Fair

OpenText LoadRunner

Load Testing Tool

8.79 Great

Test My Site (Think with Google)

Website Performance Tool

8.31 Great

Multi-Mechanize

Load Testing Tool

5.35 Mediocre

Iago

Load Testing Tool

4.80 Poor

Google Lighthouse

Web Performance Tool

9.35 Excellent

Chrome DevTools Performance Panel

Tool

9.18 Excellent

Web Page Analyzer

Web Performance Testing Tool

9.18 Excellent

WebAIM WAVE

Accessibility Tool

9.18 Excellent

Ahrefs Site Audit

SEO Audit Tool

8.92 Great

PageSpeed Insights API

API Integration

8.91 Great

AdGuard

Privacy

8.91 Great

Lighthouse CI

Web Performance Testing Tool

8.88 Great

HTTP Archive

Data Analytics

8.84 Great