Is your content deep enough that Google treats you as an authority — or thin enough that it treats you as noise?
Content health measures the substance of what's actually on your website — the density, quality, and accessibility of the words, images, and links that make up your pages. Every other pillar is a signal about your site. Content is your site. If Visibility gets you found, AI Discoverability gets you cited, Performance gets you loaded, and Engagement gets you clicked — Content is what determines whether Google decides you deserve to rank in the first place.
Google's algorithm has been on a decade-long march toward one guiding principle: reward sites that demonstrate real topical expertise, punish sites that publish thin filler. The Helpful Content Update, the E-E-A-T guidelines, and every AI-answer surface (ChatGPT, Perplexity, Google AI Overviews) all lean on the same signal — depth of coverage. Thin pages don't just fail to rank; they can actively drag down the pages that would otherwise rank. And on the other side of the coin, deep content earns backlinks passively — other sites cite substantive resources, they don't cite 300-word service pages.
Every core page on your site (homepage, service pages, key blog posts) needs enough substance for Google to grade it as authoritative. In competitive verticals, pages under 500 words almost never crack page one — not because word count itself ranks, but because a 300-word page can't possibly cover a topic with the depth a searcher needs. We flag your thinnest pages, benchmark against the average word count of the top-ranking pages for your target queries, and give you a priority order for expansion.
Alt text is the descriptive text you set on every image, primarily for accessibility (screen readers), but also for image search (a real traffic source most small businesses ignore) and for on-page keyword relevance. We scan every image on your homepage, calculate the percentage with descriptive alt text, flag empty alt attributes and missing alt attributes separately, and surface the images that need it most. A site with 40% alt coverage is losing image-search traffic every day it stays that way.
Backlinks — other websites linking to yours — are still one of the top three ranking signals in 2026, and by far the strongest signal of external authority. We pull your full backlink profile via DataForSEO, surface referring domains (the count that actually matters, not raw backlink volume), your Domain Rank score, dofollow-vs-nofollow ratio, anchor text distribution, and your top 25 referring domains ranked by authority. New sites should target 25+ quality referring domains in year one; established sites should be measuring growth month-over-month.
Any business whose website is more than three years old but never got a serious content refresh — you probably have dozens of thin service pages that should be either expanded or consolidated. Also any business in a competitive vertical (healthcare, legal, financial, home services) where the top-ranking pages average 1,500+ words and yours average 400. And every business with fewer than 10 backlinks — that's the number where local SEO starts hitting a ceiling that no amount of on-page work can break through.
How to start: All three Content Health diagnostics are in the Free Website Health Checkup — pick 6 diagnostics and see your report in under 60 seconds. Bundles from $27–$67 unlock more, and the $500 Comprehensive Audit adds a hand-crafted content depth priority plan for your top 10 pages.
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