SiteCurl vs PageSpeed Insights: go beyond single-page speed scores
PageSpeed Insights checks one page with Lighthouse data. SiteCurl monitors up to 50 pages across seven audit types with reports you can share.
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PageSpeed Insights is a quick way to check how one page loads. It runs Lighthouse under the hood and shows both lab data and real-user metrics from the Chrome UX Report. For a free, no-login speed check, it is hard to beat.
But PSI only checks one page at a time and only covers speed plus basic SEO and accessibility hints. It does not save your results, track changes over time, or let you share a report with your team. SiteCurl fills those gaps with scheduled scans, score history, and shareable reports.
If you need to check speed on one page right now, PSI works. If you manage multiple sites and need ongoing checks across seven areas, SiteCurl is built for that job.
Key differences
Multi-page monitoring
SiteCurl
Scans up to 50 pages per site on a weekly or monthly schedule. No need to test each page by hand. Issues across your full site show up in one report.
PageSpeed Insights
One page at a time, no saved results. You have to re-test manually and compare screenshots.
Seven audit types
SiteCurl
SEO, speed, security, accessibility, technical health, uptime, and AI readiness in one scan. That is 85 checks per scan.
PageSpeed Insights
Mainly speed and Core Web Vitals. Basic SEO and accessibility hints from Lighthouse, but no security, uptime, or AI readiness.
Score tracking
SiteCurl
Stores past scores so you can see trends. Get email alerts when a score drops. Know if your fixes are working over time.
PageSpeed Insights
Each test is a fresh snapshot. No history, no alerts, no way to track progress.
Shareable reports
SiteCurl
One-click share links, PDF export, and custom branding. Clients read reports without needing a login or technical background.
PageSpeed Insights
Results display in the browser. You can copy a URL but there is no formatted report or export option.
Feature comparison
| Feature | SiteCurl | PageSpeed Insights |
|---|---|---|
| Speed checks | Yes | Yes |
| Core Web Vitals (field data) | No | Yes |
| SEO checks | Yes | Yes |
| Security checks | Yes | No |
| Accessibility checks | Yes | Yes |
| Multi-page scans | Yes | No |
| Scheduled monitoring | Yes | No |
| Score history and alerts | Yes | No |
| Shareable report links | Yes | No |
| Free to use | Yes | Yes |
SC
SiteCurl: YesThem
PageSpeed Insights: YesSC
SiteCurl: NoThem
PageSpeed Insights: YesSC
SiteCurl: YesThem
PageSpeed Insights: YesSC
SiteCurl: YesThem
PageSpeed Insights: NoSC
SiteCurl: YesThem
PageSpeed Insights: YesSC
SiteCurl: YesThem
PageSpeed Insights: NoSC
SiteCurl: YesThem
PageSpeed Insights: NoSC
SiteCurl: YesThem
PageSpeed Insights: NoSC
SiteCurl: YesThem
PageSpeed Insights: NoSC
SiteCurl: YesThem
PageSpeed Insights: YesPageSpeed Insights is a fast, free way to test one page. It gives you Lighthouse scores and real-user data from Chrome. For quick speed checks, it does the job well.
SiteCurl is built for teams who need more than speed. It checks seven areas, scans multiple pages, and tracks scores over time. If you manage sites for clients and need shareable reports, SiteCurl handles that without extra work.
Many teams use PSI for quick one-off checks and SiteCurl for everything else. PSI tells you how one page loads today. SiteCurl tells you how your whole site is doing over time.
Frequently asked questions
Is PageSpeed Insights better for speed testing?
PSI provides Core Web Vitals and real-user field data from Chrome. SiteCurl checks 11 server-side speed factors. PSI goes deeper on speed per page. SiteCurl goes wider across pages and categories.
Does SiteCurl use Lighthouse?
No. SiteCurl runs its own checks. For Lighthouse-based scores, use PageSpeed Insights or run Lighthouse in Chrome DevTools.
Is PageSpeed Insights free?
Yes, completely free with no account needed. SiteCurl also offers a free audit for single pages. Paid plans start at $29/mo for multi-page monitoring and reports.
Can I track PageSpeed scores over time?
Not in PSI itself. You would need to re-test manually and track results in a spreadsheet. SiteCurl saves scores automatically after each scan and shows trends.
Does SiteCurl measure Core Web Vitals?
SiteCurl does not measure Core Web Vitals. It checks page size, compression, script count, and other factors that affect load speed. For CWV data, use PageSpeed Insights.
Can I use both tools?
Yes. PageSpeed Insights is great for quick speed checks with field data. SiteCurl handles ongoing monitoring across all your sites. The two tools work well together.
Go beyond single-page speed scores