Site Health runs six checks against your URL — meta tags, heading structure, page speed, image alt text, structured data, and Open Graph tags — then groups the results into four categories: performance, SEO, content, and technical. An overall score is calculated from all four, along with a prioritized list of the specific issues most worth fixing first.
How to use this
Start with the "Quick Wins" list if one appears — those are flagged specifically because they're low effort relative to their impact. After that, work down the prioritized issues list from Critical to Medium rather than tackling categories in the order they're displayed.