Website Redesign SEO Migration Plan: Protect Visibility During Launch

A redesign should not erase what already works

Visual improvements can accidentally remove valuable content, change established URLs, break internal links, lose metadata, or block crawling. Migration planning should begin before new routes are finalized.

What to prioritize

• Inventory indexable URLs, traffic, links, conversions, metadata, and structured data.
• Decide which pages to keep, improve, merge, redirect, or intentionally retire.
• Create one-to-one redirects to the closest useful replacement where appropriate.
• Preserve important content meaning and internal-link relationships.
• Test crawling, canonicals, robots directives, sitemaps, analytics, forms, and 404 behaviour.

A practical implementation path

1. Capture the baseline

   Export current routes and performance before changing the information architecture.

2. Build the redirect map

   Resolve every meaningful old URL and avoid sending unrelated pages to the home page.

3. Monitor after launch

   Watch indexing, errors, key landing pages, conversions, and server responses while fixes are still fast.

Measure useful outcomes

Compare indexed pages, crawl issues, top landing pages, query groups, conversions, and 404 logs against the baseline. Expect some fluctuation and investigate material losses by URL and intent.