How to Check If Your Website Is SEO Friendly
An SEO-friendly website is one that search engines can easily crawl, understand, and rank. Here are five practical ways to check if your site meets the standard.
1. Run a Free SEO Audit
The fastest way is to enter your URL on the RankNibbler homepage and click Analyse. In seconds you will get a score out of 100 with a detailed breakdown of 30+ on-page SEO factors. A score of 80+ means your page is well-optimised. Below 50 means there are significant issues to address.
2. Check Google's Index
Search site:yourwebsite.com in Google. This shows you every page Google has indexed from your site. If important pages are missing, they may have indexing issues (noindex tags, broken links, or sitemap problems).
3. Test on Mobile
Open your site on a phone. Does it look good? Is text readable without zooming? Do buttons work? Google uses mobile-first indexing, meaning it primarily uses the mobile version of your site for ranking. The RankNibbler audit checks for viewport meta tags and mobile-responsive indicators.
4. Check Page Speed
Slow pages rank lower and lose visitors. Key factors that affect speed:
- Number of external CSS and JS files
- Whether scripts use async or defer
- Whether images use lazy loading
- Image file sizes and optimisation
5. Audit Your Entire Site
Do not just check one page. Use the site audit tool to crawl your sitemap and check every page. Common site-wide issues include:
- Multiple pages with the same title tag
- Missing meta descriptions across the site
- Images without alt text on every page
- No structured data anywhere on the site
- Broken links accumulating over time
SEO Friendly Checklist
See the full SEO audit checklist for 2026 or the on-page SEO checklist for a complete list of items to review.
Last updated: March 2026