Surgical HTML Auditor: Diagnostic Content Spine & Keyword Inference
Run the free diagnostic above, then upgrade to the AI Fix-it Brief—our primary path for turning findings into ranked, surgical content changes.
Visualizing Your SEO Spine
Your page's H1–H3 flow is the structural spine search engines crawl first. When headings drift from your target phrase or bury keywords deep in body copy, density signals fragment and topical relevance weakens. This auditor maps how those layers stack, surfaces where keyword density is buried instead of reinforced in the spine, and reports internal link count so you can see whether your site is passing equity through the joints that matter.
The Keyword Inference Gap
Writers often believe they "said" the right thing because the prose reads well on the page. Google, however, infers intent from the HTML skeleton—headings, landmark regions, emphasis, and link patterns—not from unstated nuance. When what you think you wrote diverges from what the DOM encodes, rankings suffer from a keyword inference gap: the model assigns topic and intent from structure, not from implied meaning alone.
From Diagnostic to Surgical Brief
The free run delivers PDF-ready metrics: spine alignment, gaps, and risk signals you can share with stakeholders. The next step—the AI Fix-it Brief—translates that diagnostic into a prioritized repair plan: rewritten headings, density shifts, and internal link suggestions aligned to your keyword. That upgrade is the main growth lever: move from seeing the fracture to shipping the fix.
Frequently asked questions
What is Content Spine Analysis?
Content Spine Analysis (included in the brief) evaluates how your H1–H3 hierarchy, supporting headings, and inline emphasis carry your target keyword and related entities. It scores alignment between stated intent and the encoded structure so you know whether Google can infer the same story readers get from prose alone.
Why does the spine matter more than body copy density?
Headings and navigation paths weigh heavily in how crawlers bucket your page. Body copy supports the spine; if the spine is weak or misaligned, strong paragraphs rarely compensate.
How does the AI Fix-it Brief use the spine diagnostic?
The brief maps each finding to a concrete change—heading rewrites, section merges, anchor text for internal links, and keyword placement—so you implement a single surgical plan instead of guessing from raw metrics.