Here’s how you can do SEO audit.

Website Crawl: Use tools like Screaming Frog or SEMrush to identify issues like broken links, duplicate content, or missing meta tags.

Check Page Speed: Analyze site speed using Google PageSpeed Insights and improve loading times.

Mobile-Friendliness: Ensure your website is responsive and mobile-friendly using Google’s Mobile-Friendly Test.

On-Page SEO: Review meta titles, descriptions, headers, and image alt texts for optimization.

Backlink Profile: Audit your backlinks for quality using tools like Ahrefs or Moz. Remove or disavow toxic links.

Technical SEO: Check XML sitemap, robots.txt file, and ensure there’s no crawl blockage.

Content Quality: Ensure content is unique, relevant, and optimized for your target keywords.

User Experience: Test navigation, design, and overall user journey for improvement.

I recently audited my website https://null-brawl.org/ using these steps to improve performance and ranking.