How to Migrate a Website Without Losing SEO Traffic (CMS & Domain Changes)

E1052: We break down how to migrate a website without losing SEO traffic. Whether you are switching from WordPress to Squarespace or Webflow, changing to another CMS, restructuring your URLs, or moving to a new domain entirely, this conversation covers what actually happens inside Google during a migration - and how to minimize risk. We discuss real-world scenarios, including accidental migrations, domain changes, slug updates, and situations where rankings unexpectedly dropped. The goal is simple: protect your traffic and avoid unnecessary volatility. What we cover: - What happens when you change CMS but keep URLs and content the same - Why HTML structure changes can still trigger re-indexing - How low-authority pages can suddenly impact rankings during a migration - The difference between crawl, refresh, and discovery modes - How cannibalization can appear after a migration - Why you should freeze structural changes before migrating - When to noindex pages before changing slugs - How to properly handle 301 redirects for slug updates - What to expect when changing root domains - How to use Google Search Console's domain migration tool - Why XML sitemaps do not "force" indexing - Why HTML sitemaps can be more effective - The risks of changing site architecture during a migration - How to warm up a new domain before moving - How to smooth traffic volatility with strategic content republishing We also answer a listener question about whether submitting a new sitemap after changing site architecture can cause traffic drops - and what to do instead. If you are planning a website migration, CMS switch, URL restructure, or domain move, this episode walks through the technical considerations that can make the difference between a smooth transition and a traffic decline. If you have questions about SEO, migrations, indexing, or site structure, send them in and we may cover them in a future episode. ⭐️ David Quaid on 𝕏 - https://x.com/DavidGQuaid ⭐️ David Quaid on LinkedIn - https://www.linkedin.com/in/davidquaid/ ⭐️ David Quaid's agency - https://primaryposition.com/ 💎 Compact Keywords - My SEO Course - Get paying customers through SEO - Clear step-by-step video breakdowns - SEO templates to be copied and adapted for your products and services: https://compactkeywords.com/ 00:00 Migration SEO Basics 00:30 Chad's CMS Switch Scenario 02:02 Pre-Migration Freeze Checklist 03:11 Protect Top Traffic Pages 04:19 Prune And Republish Old Posts 05:46 Press And Email Crawl Boost 07:17 Same Domain Vs New Domain 08:59 HTML Changes Trigger Reindexing 11:15 Discovery Vs Refresh Crawls 12:23 Health Checks And Cannibalization 12:55 Staged Migration Case Study 14:32 Will Traffic Really Stay Flat 18:05 Domain Move Pitfalls And GSC Tool 18:57 Subdomain Cannibalization 20:00 Slug Changes and Noindex 22:43 Timing the 301 Redirect 26:56 Smooth Domain Migration Prep 29:39 Architecture Changes Risk 31:30 Sitemaps Dont Force Indexing 34:07 HTML Sitemaps and Authority 35:27 Wrap Up and Next Steps The Edward Show. Your daily search engine optimization podcast: https://edwardsturm.com/the-edward-show/ #searchengineoptimization #sitemigration #technicalseo #seo