SpeedSignal
Synthetic performance testing + AI

See why your site is slow —
and exactly how to fix it

SpeedSignal runs real-browser tests from up to 26 locations worldwide, then turns Core Web Vitals into a prioritized, client-ready fix list — powered by Claude.

Get Started Free See Sample Report

No credit card required · Free plan available

26

Global test locations

Real Chrome

Browser-based testing

Core Web Vitals

Google's official metrics

AI-powered

Recommendations by Claude

Everything you need to diagnose slow pages

Real Browser Tests

Real Chrome from up to 26 global locations — results that match what your users actually feel.

AI Recommendations

Claude turns raw metrics into a prioritized, page-specific list of fixes — not just scores.

Client-Ready Reports

Polished, shareable reports you can hand straight to a client — no formatting required.

Developer API

Trigger tests and pull results programmatically — wire performance checks straight into CI.

From URL to fix list in three steps

1

Paste your URL

No tags, no agents, no setup. Drop in a link and pick a location.

2

We test from real browsers

Chrome from up to 26 global locations, capturing Core Web Vitals, filmstrip, and waterfall.

3

Get AI recommendations

Claude turns the numbers into a prioritized fix list you can hand to your team or client.

Simple, transparent pricing

Start free, upgrade when you need more.

Free Plan

$0 /mo
  • 50 tests per month
  • 5 AI insights (Claude Haiku)
  • 3 locations
  • Core Web Vitals monitoring
  • 7 days data retention
Get started free

Solo Plan

$15 /mo
  • 250 tests per month
  • 50 AI insights (Claude Haiku)
  • 5 locations
  • PDF report export
  • 30 days data retention
  • Email support (48hr)
Start with Solo Plan
Most Popular

Professional Plan

$39 /mo
  • 1,000 tests per month
  • 150 AI insights (Claude Sonnet)
  • 10 locations
  • White-label reports
  • Test Data API access
  • 90 days data retention
  • Priority email support (24hr)
Start with Professional Plan

Business Plan

$99 /mo
  • 5,000 tests per month
  • 500 AI insights (Claude Sonnet)
  • 26 locations (all available)
  • White-label reports
  • Test Scheduler API access
  • Priority test queue
  • 1 year data retention
  • Priority phone & email support (8hr)
Start with Business Plan

Ready to see what's slowing your site?

Run your first test in under a minute. No setup required.

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