Technical SEO Issue Guides
The issue library covers 24 crawl, indexation, rendering, metadata, linking, and internationalization failures. Use each guide to reproduce the signal before changing production, then rerun the exact failing case against an explicit pass condition.
Technical SEO diagnostic library
24 evidence-backed guides
Missing Canonical Tag: Diagnosis and Repair
Diagnose missing canonical tag with an evidence fixture, false-positive boundary, repair sequence, and reproducible rerun gate.
Multiple Canonical Tags: Diagnosis and Repair
Diagnose multiple canonical tags with an evidence fixture, false-positive boundary, repair sequence, and reproducible rerun gate.
Canonical to Redirect: Diagnosis and Repair
Diagnose canonical points to redirect with an evidence fixture, false-positive boundary, repair sequence, and reproducible rerun gate.
Canonical and Noindex Conflict: Diagnosis and Repair
Diagnose canonical noindex conflict with an evidence fixture, false-positive boundary, repair sequence, and reproducible rerun gate.
Redirect Chain: Diagnosis and Repair
Diagnose redirect chain SEO with an evidence fixture, false-positive boundary, repair sequence, and reproducible rerun gate.
Redirect Loop: Diagnosis and Repair
Diagnose redirect loop SEO with an evidence fixture, false-positive boundary, repair sequence, and reproducible rerun gate.
Soft 404: Diagnosis and Repair
Diagnose soft 404 SEO with an evidence fixture, false-positive boundary, repair sequence, and reproducible rerun gate.
Robots-Blocked Indexable URL: Diagnosis and Repair
Diagnose robots blocked indexed page with an evidence fixture, false-positive boundary, repair sequence, and reproducible rerun gate.
Noindex URL in Sitemap: Diagnosis and Repair
Diagnose noindex URL in sitemap with an evidence fixture, false-positive boundary, repair sequence, and reproducible rerun gate.
Redirecting URLs in Sitemap: Diagnosis and Repair
Diagnose redirect URLs in sitemap with an evidence fixture, false-positive boundary, repair sequence, and reproducible rerun gate.
Orphan Page: Diagnosis and Repair
Diagnose orphan page SEO with an evidence fixture, false-positive boundary, repair sequence, and reproducible rerun gate.
Excessive Crawl Depth: Diagnosis and Repair
Diagnose crawl depth SEO with an evidence fixture, false-positive boundary, repair sequence, and reproducible rerun gate.
Broken Internal Link: Diagnosis and Repair
Diagnose broken internal links SEO with an evidence fixture, false-positive boundary, repair sequence, and reproducible rerun gate.
JavaScript-Only Link: Diagnosis and Repair
Diagnose JavaScript only links SEO with an evidence fixture, false-positive boundary, repair sequence, and reproducible rerun gate.
Raw and Rendered HTML Mismatch: Diagnosis and Repair
Diagnose raw rendered HTML mismatch SEO with an evidence fixture, false-positive boundary, repair sequence, and reproducible rerun gate.
Structured Data Content Drift: Diagnosis and Repair
Diagnose structured data content mismatch with an evidence fixture, false-positive boundary, repair sequence, and reproducible rerun gate.
Duplicate Title Tag: Diagnosis and Repair
Diagnose duplicate title tags SEO with an evidence fixture, false-positive boundary, repair sequence, and reproducible rerun gate.
Duplicate Meta Description: Diagnosis and Repair
Diagnose duplicate meta descriptions SEO with an evidence fixture, false-positive boundary, repair sequence, and reproducible rerun gate.
Faceted Navigation Crawl Trap: Diagnosis and Repair
Diagnose faceted navigation crawl trap with an evidence fixture, false-positive boundary, repair sequence, and reproducible rerun gate.
Parameter URL Duplication: Diagnosis and Repair
Diagnose URL parameter duplicate content SEO with an evidence fixture, false-positive boundary, repair sequence, and reproducible rerun gate.
Pagination and Infinite Scroll Indexing: Diagnosis and Repair
Diagnose infinite scroll SEO pagination with an evidence fixture, false-positive boundary, repair sequence, and reproducible rerun gate.
Hreflang Return Tag Error: Diagnosis and Repair
Diagnose hreflang return tag error with an evidence fixture, false-positive boundary, repair sequence, and reproducible rerun gate.
Mobile and Desktop Content Mismatch: Diagnosis and Repair
Diagnose mobile desktop content mismatch SEO with an evidence fixture, false-positive boundary, repair sequence, and reproducible rerun gate.
Lazy-Loaded Primary Content: Diagnosis and Repair
Diagnose lazy loaded content SEO with an evidence fixture, false-positive boundary, repair sequence, and reproducible rerun gate.
Implementation boundaries
- Read the technical SEO audit method - Service-process intent remains on the method route.
- Contact Sulayman Bowles - Conversion and audit-intake endpoint.
- Return to the research archive - Research notes and public evidence.