Website Speed Test — Lighthouse + Web Vitals

Q: How do I know if my website is slow?

The most reliable way is to run Google Lighthouse, which gives a 0-to-100 Performance score. Sites below 50 are considered slow, 50–89 average, and above 90 fast. Use the tool above to test in 30 seconds.

Q: What are Core Web Vitals?

They are Google's three official metrics for user experience: LCP (loading, ideal < 2.5s), INP (interactivity, ideal < 200ms) and CLS (visual stability, ideal < 0.1). Sites that meet all three get a boost in organic rankings.

Q: Why is my WordPress site slow?

Common causes: low-performance shared hosting, no caching, too many plugins, unoptimized images, neglected database and no CDN. Rollin Host's managed WordPress hosting addresses all 6 causes by default.

Q: How can I improve my website speed?

5 highest-impact actions: (1) hosting with NVMe SSD and PHP 8.x, (2) server-side page cache (Redis/LiteSpeed), (3) a CDN like Cloudflare, (4) images in WebP/AVIF format with lazy loading, (5) minify CSS/JS and remove unnecessary plugins.

Q: Is it worth switching hosting if my site is slow?

Yes, in most cases. If the TTFB is above 600ms or the Server Response Time exceeds 1s, the bottleneck is the server — optimizing the site won't fix it. Switching to proper infrastructure typically brings TTFB below 200ms immediately. Free migration and a 30-day guarantee.

Auditing your site…

Lighthouse takes 20 to 30 seconds for a full analysis.

Result

Analysis of —

—

0 / 100

—

— Accessibility

— Best Practices

— SEO

LCP —

—

Largest Contentful Paint · ideal < 2.5s

FCP —

—

First Contentful Paint · ideal < 1.8s

CLS —

—

Cumulative Layout Shift · ideal < 0.1

TBT —

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Total Blocking Time · ideal < 200ms

Frequently asked questions

Everything you need to know about website speed

How do I know if my website is slow?

The most reliable way is to run Google Lighthouse, which gives a 0-to-100 Performance score. Sites below 50 are considered slow, 50–89 average, and above 90 fast. Use the tool above to test in 30 seconds.

What are Core Web Vitals?

They are Google's three official metrics for user experience: LCP (loading, ideal < 2.5s), INP (interactivity, ideal < 200ms) and CLS (visual stability, ideal < 0.1). Sites that meet all three get a boost in organic rankings.

Why is my WordPress site slow?

Common causes: low-performance shared hosting, no caching, too many plugins, unoptimized images, neglected database and no CDN. Rollin Host's managed WordPress hosting addresses all 6 causes by default.

How can I improve my website speed?

5 highest-impact actions: (1) hosting with NVMe SSD and PHP 8.x, (2) server-side page cache (Redis/LiteSpeed), (3) a CDN like Cloudflare, (4) images in WebP/AVIF format with lazy loading, (5) minify CSS/JS and remove unnecessary plugins.

Is it worth switching hosting if my site is slow?

Yes, in most cases. If the TTFB is above 600ms or the Server Response Time exceeds 1s, the bottleneck is the server — optimizing the site won't fix it. Switching to proper infrastructure typically brings TTFB below 200ms immediately. Free migration and a 30-day guarantee.

Test your website speed with Google Lighthouse

Auditing your site…

Analysis of —

Speed up your website right now

Everything you need to know about website speed

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