Test any website's load speed, Core Web Vitals (LCP, CLS, INP), TTFB, and mobile performance — and see exactly how slow speed is dragging down your Google rankings. No login required.
3 free tests per day — No login required — Results in 3–5 minutes
A page speed analyzer measures how fast your website loads for real visitors and search engine crawlers — and scores each factor that contributes to or undermines your load time, including Core Web Vitals, server response time, render-blocking resources, image optimization, and JavaScript execution.
Page speed is not just a user experience metric. Google has used Core Web Vitals (LCP, CLS, and INP) as direct ranking signals since 2021 — meaning a slow website is actively being outranked by faster competitors, regardless of content quality. Studies show that pages on Google’s first page typically load in under 2 seconds on desktop. Most small business sites score between 30 and 65 on Lighthouse, leaving significant ranking gains on the table. Rank Authority’s free page speed analyzer identifies every performance bottleneck, scores its impact on your Google rankings, and — when you activate a free trial — fixes it automatically through the WordPress plugin.
Our page speed checker goes deeper than a simple Lighthouse score — it connects every performance issue to its direct impact on your Google rankings and user experience.
Total time from first request to fully loaded page, measured separately for mobile and desktop. Includes Time to Interactive (TTI) and Total Blocking Time (TBT) — both heavily weighted in Lighthouse scoring.
Google’s official ranking signals. Largest Contentful Paint measures load speed, Cumulative Layout Shift measures visual stability, and Interaction to Next Paint measures responsiveness. Failing any one of these can suppress your rankings.
How quickly your server responds. TTFB is the starting point for every other speed metric — a slow server (above 800ms) undermines everything else. Common causes: underpowered hosting, missing caching, slow databases, or no CDN.
CSS and JavaScript files that pause the browser from rendering your page. Every render-blocking resource adds delay before visitors see anything. We identify each one and recommend specific deferral or async loading strategies.
Uncompressed images are the single biggest cause of slow pages. We flag every oversized image, identify conversion opportunities to next-gen formats (WebP, AVIF), and calculate the exact KB savings available on your page.
Unique to Rank Authority — every speed metric is weighted by its actual impact on your Google rankings, not just its technical severity. You see exactly which fixes will move your rankings and by how much, not just a list of generic recommendations.
Google has confirmed page speed as a ranking factor since 2010. Core Web Vitals became an official ranking signal in 2021. Here’s what the data says.
Research from Google shows that as page load time increases from 1 second to 3 seconds, the probability of a user bouncing increases by 32%. From 1 second to 5 seconds, it jumps to 90%. These bounce rate increases send direct negative signals back to Google, compounding your ranking penalty beyond the Core Web Vitals hit alone.
Pages that rank in Google’s top 3 positions consistently load significantly faster than those on page 2 and beyond. It’s not a coincidence — Google actively demotes pages that fail the Page Experience signals, which are built almost entirely on speed and stability metrics.
For mobile searches — which now account for over 60% of all Google searches — the penalty for slow pages is even more severe. Google’s mobile-first indexing means your mobile speed score is the primary one it evaluates for rankings, not desktop.
The fix isn’t theoretical. Rank Authority’s WordPress plugin applies the most impactful speed optimizations automatically — image compression, lazy loading, script deferral, caching, and CDN integration — and tracks the ranking improvement that follows.
Since 2021, Google has used these three metrics as direct ranking signals in the Page Experience algorithm. Failing any one of them puts you at a competitive disadvantage on every search result page.
Measures how quickly the largest visible element on your page — typically a hero image or headline — finishes loading. This is Google’s primary measure of perceived load speed. Most small business sites fail this metric because of unoptimized hero images and slow server response.
Measures visual stability — how much the page jumps around while loading. When images load without dimensions, fonts swap in late, or ads inject themselves, content shifts position and disorients visitors. Google penalizes high CLS scores because they indicate a poor, unstable experience.
Replaced FID in March 2024 as Google’s responsiveness metric. INP measures how quickly your page responds to every user interaction — clicks, taps, and keyboard input — throughout the entire page visit. Heavy JavaScript, third-party scripts, and bloated plugins are the most common causes of poor INP scores.
Enter your URL, let the analyzer do the work, and walk away with a clear picture of every speed issue and exactly how to fix it.
Type your homepage, a landing page, or any competitor’s URL. You can test any publicly accessible page — no account or login required.
The analyzer runs your page through both mobile and desktop environments, measuring TTFB, LCP, CLS, INP, load time, render-blocking resources, and image optimization. Results are typically ready in 3 to 5 minutes.
Your report delivers a Performance Score (0–100), individual Core Web Vitals grades, a SEO Ranking Impact score, and every speed issue prioritized by how much fixing it will move your rankings.
Start a free trial and install the Rank Authority WordPress plugin. It reads your speed report and implements every applicable fix automatically — image compression, lazy loading, script deferral, caching, and more.
A complete breakdown of every performance signal checked in your free speed report.
Whether you’re a business owner, WordPress developer, SEO consultant, or agency — a slow site is costing you rankings you should be winning.
If a local competitor is showing up above you in Google, their site speed could be the deciding factor. Our analyzer shows you exactly where you’re losing the speed battle and what to fix — without needing to understand a single line of code. Rank Authority’s plugin handles every fix automatically.
WordPress sites are the most common victims of poor Core Web Vitals — theme frameworks, page builders, and poorly coded plugins add enormous JavaScript and CSS weight. Our analyzer identifies every performance-killing resource by name and quantifies the exact speed gain from removing or optimizing each one.
Show clients exactly how their speed score translates to ranking positions lost. Use the SEO Ranking Impact score to build the business case for technical improvements. Run competitive speed benchmarks to show how their site compares to the top 3 ranking competitors in their target keywords.
Run a speed test before and after a performance sprint to document the improvement. Test any competitor’s page to identify what they’re doing differently. Use the detailed metrics to guide technical decisions on hosting, CDN configuration, JavaScript architecture, and image pipelines.
AI search engines — ChatGPT, Perplexity, Gemini, Copilot, and others — are now deciding which pages to cite as answers. A slow, poorly performing site gets passed over, not just in Google but across every AI-powered search platform.
Google’s Page Experience algorithm uses Core Web Vitals as a direct tie-breaker. Two pages with identical content and backlinks — the faster one ranks higher. Failing LCP, CLS, or INP suppresses your position on every keyword you compete for, costing you organic traffic you should be earning.
Generative Engine Optimization (GEO) is about getting AI platforms — ChatGPT, Perplexity, Gemini, Copilot, Grok, and others — to cite your content as a source. These engines crawl and index web pages just like Google, and they prioritize pages that are fast, stable, and fully accessible. A slow TTFB or failing Core Web Vitals signals a poor-quality source, reducing your citation frequency across all 8 major AI platforms.
Answer Engine Optimization (AEO) is the practice of positioning your content to appear in Google’s featured snippets, People Also Ask boxes, and AI-generated answer summaries. Google’s systems heavily weight page experience signals — including speed — when selecting which pages earn these high-visibility placements. A page that fails Core Web Vitals is significantly less likely to win a featured snippet, even when its content is the best answer available.
Everything you need to know about page speed, Core Web Vitals, and how speed affects SEO, GEO, and AEO visibility.
Run your free page speed analysis, see your Core Web Vitals scores and SEO Ranking Impact, then let Rank Authority fix every performance issue automatically.
Free analysis · 7-day trial · No credit card required