How do I test my website speed for free?

Use RunHost's free website speed test tool — enter your URL and click Analyze. No sign-up required. The tool runs a real browser test and reports page load time, Core Web Vitals (LCP, FCP, CLS, TBT), TTFB, Speed Index, performance score, and specific recommendations to make your site faster.

What is a good website load time?

A website should ideally load in under 2 seconds. Under 1 second is excellent. Google uses page speed as a ranking factor — sites that load faster rank higher and have lower bounce rates. The Largest Contentful Paint (LCP) should be under 2.5 seconds for a 'Good' rating according to Google.

What are Core Web Vitals and why do they matter for SEO?

Core Web Vitals are Google's official user experience metrics that directly impact search rankings. LCP (Largest Contentful Paint) measures loading speed — good is under 2.5s. FCP (First Contentful Paint) measures when content first appears. TBT (Total Blocking Time) measures interactivity. CLS (Cumulative Layout Shift) measures visual stability — good is under 0.1. Poor Core Web Vitals can lower your Google rankings.

What is TTFB and how do I improve it?

TTFB (Time to First Byte) measures how quickly your server starts responding. A good TTFB is under 200ms — anything over 600ms will hurt your Google score. Improve TTFB by upgrading to faster hosting (RunHost uses NVMe SSDs for sub-100ms TTFB), enabling server-side caching with Redis or OPcache, reducing database queries, and using a CDN.

How do I get a perfect 100 performance score?

Achieving 100/100 requires: TTFB under 200ms (fast hosting), LCP under 1.2s, TBT under 150ms (minimal JavaScript), CLS under 0.05, page size under 500KB, fewer than 25 HTTP requests, all security headers (HTTPS, HSTS, CSP), no render-blocking resources, optimized images (WebP/AVIF), and proper caching headers.

Does page speed affect Google rankings?

Yes. Google uses Core Web Vitals as a ranking signal as part of its Page Experience update. Sites with poor LCP, high CLS, or slow load times rank lower in search results. A faster site also improves user engagement, reduces bounce rate, and increases conversions — all of which indirectly boost SEO.

How can I speed up my website?

Top ways to speed up your website: (1) Switch to fast NVMe SSD hosting like RunHost, (2) Enable caching (Redis, OPcache, browser caching), (3) Use a CDN, (4) Compress and convert images to WebP, (5) Minify CSS and JavaScript, (6) Remove render-blocking scripts, (7) Enable GZIP/Brotli compression, (8) Reduce HTTP requests, (9) Use lazy loading for images and videos, (10) Optimize your database queries.

Is this website speed test tool free?

Yes, RunHost's website speed test is 100% free to use. No account, no credit card, no limits for casual use. Just enter any URL and get instant results including Core Web Vitals, TTFB, performance score, page screenshot, and actionable improvement recommendations.

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Website speed test

How fast is your website?

Analyse your website's performance, security and SEO. Get real metrics and clear recommendations.

Free Website Speed Test & Core Web Vitals Analyzer

RunHost's real-browser Website Speed Test launches an isolated Chromium instance to measure your site's actual performance, Google Core Web Vitals, page weight breakdown, HTTP/2 & Brotli compression status, and security headers. Because page speed and Core Web Vitals are direct Google Search ranking signals, optimizing your server response time and asset delivery directly improves both organic SEO rankings and conversion rates.

Time to First Byte (TTFB)

Measures how quickly your web server responds to an HTTP request. Upgrading to RunHost NVMe SSD Hosting with LiteSpeed Enterprise and server-level LSCache reduces TTFB to under 150ms.

Largest Contentful Paint (LCP)

Tracks how fast the largest hero image or heading renders in the viewport. Google recommends an LCP under 2.5 seconds for passing Core Web Vitals.

CLS & Total Blocking Time (TBT)

Cumulative Layout Shift (CLS ≤ 0.1) measures visual stability, while Total Blocking Time (TBT ≤ 200ms) measures main-thread JavaScript responsiveness during page load.

How fast is your website?

Free Website Speed Test & Core Web Vitals Analyzer

Time to First Byte (TTFB)

Largest Contentful Paint (LCP)

CLS & Total Blocking Time (TBT)

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