How to Fix Every Migration Audit Finding

The Site Migration Audit compares your pre-migration and post-migration state — URL mappings, redirect coverage, ranking lift or loss, indexation drift, schema preservation. Most ranking drops post-migration are recoverable if caught in the first 30 days. This index covers fixes for every finding.

New here?

Migration is high-stakes. Start with the Site Audit Guide and Robots & Sitemap Guide.

By finding type

Pick the finding matching yours:

❌ Fix lost URLs LIVE

Pages that existed pre-migration and don't post-migration. The reclamation decision: restore, redirect to closest equivalent, or accept loss. The redirect-map template for bulk migration.

🔗 Fix broken redirect chains LIVE

Old → middleman → new redirect chains lose link equity at each hop. Collapse to single 301. Audit at both edge (CDN) and origin (server) layers.

📉 Fix post-migration ranking drops LIVE

Drops in the first 2-4 weeks are normal. Drops persisting after 6 weeks signal real problems. The diagnostic checklist: redirects, canonicals, content parity, schema preservation, internal-link integrity.

🔍 Fix indexation gaps LIVE

Pages indexed pre-migration, not indexed post-migration. The Search Console drill-down: discovered-not-indexed vs crawled-not-indexed vs excluded. The fix per category.

🏛️ Fix missing canonical preservation LIVE

Old URLs canonicalised correctly. New URLs missing or wrong canonicals. The pre/post comparison workflow, the canonical-update script for headless CMS migrations.

🗺️ Fix sitemap and robots.txt drift LIVE

New site, old sitemap pointing at dead URLs. Robots.txt allowing things it shouldn't, blocking things it should allow. The post-launch first-week verification list.

📐 Fix schema and structured-data loss LIVE

Old site had rich-result-eligible schema. New site doesn't. The schema-equivalence audit, the rich-result coverage report comparison, the bulk-regeneration approach.

🔗 Fix internal-link breakage LIVE

Internal links still pointing at old URLs that now 301. Each adds a hop. Bulk find-and-replace in CMS, the post-migration internal-link audit.

By platform

Migration patterns by source/destination:

📰 Fix WordPress migration issues LIVE

Theme change vs full platform migration, the URL-structure shift (post slug, category structure), the SEO-plugin handover.

🛒 Fix Shopify migration issues LIVE

Migration to/from Shopify: URL-pattern shift (/products/, /collections/), the redirect-export from old platform, the bulk-redirect import to Shopify.

⚛️ Fix headless migration issues LIVE

Migration from monolith to headless: content-API shift, the SSG-vs-SSR decision per route, preserving SEO during the cutover.

What our Site Migration Audit checks

The audit compares pre-migration crawl data against the live site post-migration, identifies lost URLs, validates redirect coverage, tracks ranking shifts, checks indexation, verifies schema preservation and audits internal-link integrity. For the full reference, see the Migration Audit tool.

🔀 Audit your migration first

Catch issues in the first 30 days when recovery is straightforward. Wait longer and rankings calcify.

Run Migration Audit →

About dev.aiwebpageseo

dev.aiwebpageseo.com is a data-driven SEO and AEO (Answer Engine Optimisation) platform providing a free suite of technical website tools. Rather than relying on AI-theorised assumptions, the platform analyses live URL performance, delivering objective diagnostics, page speed metrics, CLS debugging, and site crawl data alongside actionable technical tutorials.