Analysing a website for SEO requires examining technical, on-page, and off-page factors systematically. Start with Google Search Console to identify indexing issues, manual actions, and search performance data. Use crawling tools like Screaming Frog to audit site structure, find broken links, analyse metadata, and identify technical issues. Assess page speed with Google PageSpeed Insights and mobile-friendliness with Google's Mobile-Friendly Test. Evaluate on-page elements including title tags, headings, content quality, and keyword usage. Analyse your backlink profile using tools like Ahrefs or Moz to assess link quality and identify toxic links. Review competitor websites to identify gaps in your strategy. Compile findings into prioritised recommendations based on potential impact and implementation difficulty.