A homepage-only SEO check misses what search engines actually crawl: templates, category pages, thin blog posts, and broken paths buried in the footer. A full-site audit starts with coverage, then quality.
First, confirm what is indexable. Check robots.txt, noindex tags, and canonicals on a sample of templates (home, product/service, blog, location). If Google cannot discover or is told not to index key URLs, on-page tweaks will not help.
Second, fix unique titles and meta descriptions across the crawl — not just the homepage. Duplicate titles are one of the fastest wins on multi-page sites because they show up as patterns in a site-wide scan.
Third, chase crawl waste: broken links (4xx/5xx), redirect chains, and soft 404s. These burn budget and frustrate users who arrive from bookmarks or internal nav.
Fourth, ship a baseline of technical trust: HTTPS everywhere, sensible security headers, and valid structured data for Organization / WebSite on the home URL.
Finally, re-scan after each batch of fixes. Rankings move slowly; your crawl report should move immediately. Use that feedback loop instead of guessing which ticket mattered.
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