A technically-minded searcher looking for a free SEO health check expects a credible offer that references concrete technical factors — site speed, crawlability, mobile usability — to signal real expertise. Generic offers that don't specify what they'll assess signal that the "audit" is a sales script rather than a genuine diagnostic.
What Technical SEO Health Checks Assess
Site crawlability: Can search engine crawlers efficiently discover and index all the important pages on your site? Issues include: pages accidentally blocked by robots.txt, noindex tags applied to pages that should rank, broken internal links that prevent crawlers from following the site's link structure, and crawl budget waste (search engines spending limited crawl resources on unimportant pages rather than your most valuable content).
Core Web Vitals and page speed: Google's page experience signals — Largest Contentful Paint (how quickly the main content loads), Interaction to Next Paint (responsiveness to user interaction), and Cumulative Layout Shift (visual stability) — are explicit ranking factors. A technical SEO check measures these for your key pages and identifies the specific elements causing poor scores.
Mobile usability: With Google using mobile-first indexing, mobile rendering issues directly affect rankings. A technical check identifies: text too small to read on mobile, clickable elements too close together, content wider than the screen, and mobile-specific load performance.
Indexation status: How many of your pages are actually indexed in Google? Gaps between expected page count and actual indexed page count reveal indexation problems — pages that exist on your site but aren't visible in search.
Structured data validation: Is your Schema markup correctly formatted and free of errors? Google's Rich Results Test and structured data report in Search Console identify schema implementation errors that prevent rich result eligibility.
HTTPS security: Is your site fully on HTTPS with no mixed content errors (HTTP-referenced resources on HTTPS pages)?
Redirect chains and broken links: Internal redirect chains (A → B → C when A → C is correct) waste crawl budget and dilute link authority. Broken internal links (404 errors) waste crawl resources and create poor user experiences.
What the Findings Should Tell You
A technical SEO health check should produce a prioritized list of issues ranked by their likely impact on rankings and traffic. Not every issue is equally important — a site with slow LCP scores and crawlability problems should fix the crawlability issues first (because rankings require indexation) and speed issues second (because speed affects ranking position). The priority ranking is what separates a useful technical audit from a list of everything that could theoretically be improved.