Free Website Performance
Checker Tool
Instantly analyze Core Web Vitals, measure page load times, and identify bottlenecks slowing down your site.
- Real-time Lighthouse Data
- Actionable Insights
- Developer-Friendly
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Website Performance Analyzer
Enter a domain to analyze Core Web Vitals and performance bottlenecks.
Overall Performance
Core Web Vitals & Metrics
Recommended Action Plan
Key Performance Bottlenecks
The Business Impact of Website Speed
A slow website is not just a technical issue; it is a business liability. Your website speed test results directly correlate with your company's revenue, customer acquisition costs, and brand perception. Failing to prioritize page speed optimization leaves money on the table.
Lost Revenue & Conversions
Studies show that a single second of delay in page load time can result in a 7% reduction in conversions. If an e-commerce site makes $100,000 a day, a 1-second delay could potentially cost $2.5 million in lost sales every year.
Wasted Advertising Spend
Platforms like Google Ads factor landing page experience into your Quality Score. A slow page results in lower scores, meaning you pay a higher Cost Per Click (CPC) for the exact same ad position as a faster competitor.
Damaged Brand Trust
Performance reflects brand quality. Nearly 80% of shoppers who experience dissatisfaction with a website's performance say they are less likely to buy from that site again. A fast site projects professionalism and reliability.
How Improving Speed Transforms Your Website Health
Beyond immediate sales, a well-optimized website establishes a foundation for long-term digital growth. When you consistently improve website performance, you trigger a positive ripple effect across your entire online presence.
Maximized Crawl Budget
Search engine bots have a limited time to crawl your site. Faster load times allow Google to crawl and index more pages deeply, ensuring your latest content and products appear in search results quickly.
Higher Organic Rankings
Google officially uses speed as a ranking factor. Outperforming competitors in Core Web Vitals is one of the most effective ways to secure top positions in Search Engine Results Pages (SERPs) without spending more on SEO.
Increased User Retention
Fast websites have significantly lower bounce rates. When users can navigate seamlessly from page to page without waiting, session durations increase, creating more opportunities for engagement and lead capture.
Mobile-First Dominance
With mobile traffic accounting for over half of all global web traffic, passing mobile speed tests is mandatory. Optimized sites consume less data, load instantly on 4G/5G networks, and dominate mobile search rankings.
Understanding Core Web Vitals
To truly fix a slow website, you must understand the metrics that search engines care about. Core Web Vitals are user-centric performance metrics created by Google to measure the exact quality of a user's experience.
Largest Contentful Paint
Measures loading performance. It marks the precise point when the page's main content has fully rendered on the screen. An optimal LCP must occur within 2.5 seconds of the page starting to load.
Interaction to Next Paint
Measures responsiveness. It calculates the time it takes for your website to visually respond after a user clicks a button, taps a menu, or presses a key. Fast interactions keep users engaged.
Cumulative Layout Shift
Measures visual stability. It quantifies how often users experience unexpected layout shifts (e.g., text jumping down the page as an image loads). A score of 0.1 or less prevents frustrating misclicks.
Frequently Asked Questions
What is a good website speed score?
A score of 90 or above on Lighthouse is considered excellent and indicates optimal performance. Scores between 50 and 89 mean your site needs improvement, while anything below 50 is poor and requires immediate optimization to prevent ranking drops.
How exactly does speed impact my local business?
Local customers search on mobile devices while on the go. If your local business site takes too long to load, users will instantly bounce back to the search results and choose a competitor. Speed ensures your phone number, directions, and services load instantly.
Why does my speed test score fluctuate?
Scores can vary slightly based on server response times, current network routing, third-party script loads (like ads or analytics), and internet traffic congestion at the exact moment the test is run. Focus on consistent, long-term trends.
Can web hosting affect my site speed?
Absolutely. Your Time to First Byte (TTFB) is heavily dependent on your hosting infrastructure. Shared, low-cost hosting often leads to slow server response times. Upgrading to a managed host, VPS, or dedicated server is one of the most impactful upgrades you can make.