Alternatives

AcuityScan vs WebPageTest

WebPageTest is the power tool for performance diagnostics. AcuityScan measures performance too, then scores it next to seven other categories.

WebPageTest (by Catchpoint) is the most detailed free performance tool there is, real-device and multi-location testing, waterfalls, filmstrips, and granular metrics that performance engineers love. For deep speed diagnostics, nothing beats it. AcuityScan measures Core Web Vitals and key performance metrics, but its job is breadth: performance scored alongside email, security, SEO, accessibility, privacy, and mobile in one health number.

AcuityScan vs WebPageTest, side by side

Deep performance testing.

	AcuityScan	WebPageTest
Primary focus	Full website audit	Deep performance testing
Categories covered	8	Performance
Core Web Vitals + metrics	Yes (Google PSI)	Yes (deepest)
Waterfalls + filmstrip + RUM	Summary metrics	Yes (granular)
Multi-location / real device	No	Yes
Email auth + DNS + SSL	Yes	No
Accessibility + SEO + privacy	Yes	No
Unified 0-100 health score	Yes	Performance detail
Monitoring & alerts	Included in Pro	Paid plans
Starting paid tier	$29/mo	Free + paid
Plain-English fix for every issue	Yes	No
Native Claude / MCP integration	Yes	No

Comparison based on WebPageTest's publicly listed features and pricing as of 2026. Competitor capabilities change, so if anything here is outdated, let us know.

Where AcuityScan goes further

Seven categories WebPageTest does not assess, from email authentication to accessibility.
Performance folded into one health score so a fast-but-broken site still surfaces.
Security, email, and privacy checks in the same scan as speed.
Plain-English fixes and a shareable report across every category.

When WebPageTest is the better choice

We would rather you pick the right tool than the wrong one. WebPageTest is the better fit when:

You're a performance engineer who needs waterfalls, filmstrips, and real-device, multi-location testing.
You want the deepest possible single-page speed diagnostics and nothing else.
You're chasing a specific render or network timing issue and need granular detail.

Questions

Is AcuityScan as detailed as WebPageTest on performance?

No, and that's by design. WebPageTest is the deepest dedicated performance tool. AcuityScan measures Core Web Vitals and key metrics through Google PSI, then spends its breadth on seven other categories WebPageTest doesn't cover.

Can I use both?

Many teams do: WebPageTest for deep speed debugging, AcuityScan for the full-site health audit and monitoring.

Does AcuityScan measure Core Web Vitals?

Yes, through Google PageSpeed Insights, alongside TTFB, compression, CDN detection, and render-blocking analysis.

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WebPageTest is a trademark of its respective owner. AcuityScan is independent and is not affiliated with or endorsed by WebPageTest. This comparison reflects publicly available information as of 2026 and may change, verify current features and pricing on each provider's own site.