Perform Comprehensive SEO Audits

SEO Audit is a diagnostic skill for identifying, explaining, and prioritizing issues affecting organic visibility. It organizes the audit in a defined order: crawlability and indexation, technical foundations, on-page optimization, content quality and E-E-A-T, then authority and trust signals. Its output is evidence-based and scoped; implementation is performed only when explicitly requested.

Crawlability checks cover accidental robots.txt blocks, sitemap references, environment-specific rules, valid XML sitemaps, canonical and indexable URLs, sitemap processing, page hierarchy, internal links, orphaned pages, parameters, faceted navigation, pagination, and session IDs. Indexation work compares expected and indexed pages, distinguishes intentional exclusions, and checks noindex directives, canonical conflicts, redirect loops or chains, soft errors, duplicate content, and hostname, HTTPS, and trailing-slash consistency.

Technical checks address Core Web Vitals, server response, images, JavaScript, CSS, caching, CDN use, and fonts. The rubric uses LCP at or below 2.5 seconds, INP at or below 200 milliseconds, and CLS at or below 0.1, assessed using field data at the relevant device population's 75th percentile. Lab diagnostics remain distinct from observed field performance. Mobile checks cover responsive layouts, viewports, tap targets, horizontal scrolling, desktop content parity, and mobile-first readiness. HTTPS, certificates, mixed content, redirects, and accessibility are also examined.

On-page work covers unique titles and descriptions, clear intent, heading hierarchy, topical depth, natural keyword use, internal competition, image filenames and alt text, compression, responsive delivery, lazy loading, link anchors, broken links, and link distribution. Content and trust review considers first-hand experience, original insights, author attribution, citations, topical focus, accuracy, transparent business information, policies, and site security.

Use it for a specific indexing or crawlability issue, a migration check, or a scoped organic-performance audit. Establish site type, business goal, target markets and languages, page coverage, technical or content focus, devices, Search Console and analytics access, known penalties, and recent changes. State assumptions explicitly when important context is missing.

Technical corrections cannot guarantee rankings or traffic recovery. Sampled crawls do not establish correctness for every URL or rendered state. Canonical tags are signals, sitemap membership does not prove indexation, and local source changes do not prove live deployment.

Inputs include declared production URLs, Search Console reports, crawl data, observed request logs, analytics, screenshots, headers, and page metrics. Record evidence dates, scope, and missing coverage, and check material claims against the actual page. A redirect investigation follows every hop, checks final status, canonicals and robots directives, then compares the destination with sitemap and internal links; Search Console confirms indexing separately.

Each finding records the issue, category, objective evidence, severity, confidence, SEO impact, and recommendation. An optional score impact is added only when a rubric is requested. Recommendations omit implementation steps unless asked. The action plan groups critical blockers, high-impact improvements, quick wins, and longer-term opportunities, linking each group to findings and observable verification.

The optional SEO Health Index is a subjective weighted rubric. Its weights are 30 for crawlability/indexation, 25 for technical foundations, 20 for on-page optimization, 15 for content/E-E-A-T, and 10 for authority/trust. Category scores begin at 100 and deductions reflect severity; confidence remains separate. The calculation is:

SEO Health Index =
Σ (Category Score × Category Weight)

Uninspected categories remain unknown. Scope, weights, deductions, category breakdowns, internal planning bands, limiting issues, and any change attributed to specific verified fixes accompany the score. Unresolved critical issues invalidate a reassuring high score.

Evidence collection uses Search Console, crawlers, and logs. After findings are accepted, related skills support scaled page creation, structured data, conversion optimization, or analytics instrumentation when the action plan calls for those tasks.