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 -   / 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