Compare Two Websites

What a Side-by-Side Comparison Shows

A comparison runs the same audit against two URLs and puts the results next to each other, so differences are obvious instead of buried in two separate reports. Both pages are tested on the same device profile, which makes the scores directly comparable. You see which site loads faster, which one handles accessibility better, and which one follows SEO best practices more closely.

This is useful in three situations: benchmarking your site against a competitor, checking whether a redesign actually improved performance, and deciding which of two templates or hosting setups to keep. A single score rarely tells the whole story, so read the category breakdown as well as the total.

How to Read the Results

• Performance: the largest gap here usually comes from images, JavaScript and server response time.
• Accessibility: a lower score means missing alt text, weak contrast, unlabeled form fields or heading order problems.
• Best Practices: HTTPS, console errors, deprecated APIs and image aspect ratios.
• SEO: titles, meta descriptions, crawlability, tap target sizes and legible font sizes.
• Core Web Vitals: LCP, INP and CLS, the metrics Google uses for real user experience.

Compare like with like: run both sites on the same device setting, and repeat the test a few times before drawing conclusions. Network conditions vary between runs, so a five-point difference is usually noise while a twenty-point gap is real.

Fix the Gap

Once you know where you are behind, open the full report for your own site to see the exact resources responsible. The website performance test lists every optimization opportunity with estimated savings, the SEO checker covers on-page issues, and the Core Web Vitals test shows which vital is failing.