What Is a Good PageSpeed Score?

Understanding the Score

Google PageSpeed Insights scores your website from 0 to 100 based on how quickly it loads and how smooth the experience is for users. The score is powered by Lighthouse, Google's open-source auditing tool, and it directly influences your search engine rankings.

Most business websites score between 40 and 70 on mobile. If you're in that range, you're not alone — but there's room for improvement that can make a real difference to your traffic and conversions.

Why Mobile Scores Are Lower

Almost everyone notices that their mobile score is much lower than desktop. This isn't a bug — Google deliberately simulates a mid-range phone (a Moto G Power) on a throttled 4G connection. This represents how most people actually experience the web. Your desktop score is tested on a faster connection with more processing power, so it's naturally higher.

Since Google uses mobile-first indexing, your mobile score is the one that matters most for search rankings.

What Are Core Web Vitals?

Core Web Vitals are three specific metrics that Google uses to measure real-world user experience:

How to Improve Your Score

You don't need to be a developer to understand what's slowing your site down. Here are the most common fixes:

• 1. Optimise images — Use modern formats (WebP or AVIF), compress them, and add lazy loading so images below the fold don't load until needed.
• 2. Reduce JavaScript — Large JavaScript bundles are the number one cause of slow mobile scores. Remove unused code and defer non-critical scripts.
• 3. Enable compression — Make sure your server sends compressed files (gzip or Brotli). This can reduce transfer sizes by 60-80%.
• 4. Use a CDN — A content delivery network serves your site from servers closer to your visitors, reducing latency.
• 5. Improve server response time — If your server takes more than 600ms to respond, everything else is delayed. Consider faster hosting or caching.

Does PageSpeed Actually Affect Rankings?

Yes. Google has confirmed that page speed is a ranking factor, and Core Web Vitals are part of their page experience signals. A faster site won't automatically rank first, but all else being equal, faster sites rank higher than slower ones. More importantly, 53% of mobile users abandon a page that takes longer than 3 seconds to load — so speed directly affects your conversion rate too.