How Much Does Website Migration Cost in 2026?
Website Migration Cost: What You'll Actually Pay in 2026
Website migration costs range from $1,500 for a straightforward small site CMS switch to $100,000+ for a large enterprise platform migration with extensive custom development and data migration requirements.
For most small to mid-size businesses, a professionally managed migration lands between $3,000 and $20,000. The wide range reflects significant differences in site complexity, content volume, and how much SEO protection is built into the process.
Website Migration Cost by Type (2026)
| Migration Type | Typical Cost Range | Notes |
|---|---|---|
| Hosting migration only | $500–$2,000 | No URL changes; low SEO risk |
| CMS migration (small site, under 100 pages) | $2,000–$8,000 | Content transfer + redirect mapping + QA |
| CMS migration (mid-size, 100–1,000 pages) | $8,000–$25,000 | Includes custom template rebuild and SEO audit |
| E-commerce platform migration | $10,000–$50,000+ | Product catalog, customer data, order history, integrations |
| Enterprise / large site migration | $25,000–$150,000+ | Multiple subdomains, international, custom development |
What a Professional Website Migration Includes
Pre-Migration Audit
A thorough crawl of the existing site to catalog all URLs, identify top-performing pages by traffic and backlinks, document existing redirects, and map current site architecture. This baseline is critical — you can't protect what you haven't inventoried. The pre-migration audit also surfaces technical debt on the existing site that needs to be resolved during (not after) the migration.
URL Mapping and Redirect Strategy
Every URL that changes during migration needs a 301 redirect pointing to its new equivalent. For small sites this is manageable manually. For large sites it requires systematic mapping — matching old URLs to new ones based on content equivalency, not just URL pattern matching. Missed redirects are the primary cause of post-migration traffic loss.
Content and Data Migration
Moving content from one platform to another while preserving formatting, metadata, images, and structured data. For CMS migrations, this often involves custom migration scripts rather than manual copy-paste, especially for sites with hundreds or thousands of pages. E-commerce migrations also require moving product data, customer records, and order history — with data validation to ensure nothing is corrupted or lost.
Functionality Rebuild or Integration
Custom functionality on the old platform (forms, calculators, membership systems, booking tools) may need to be rebuilt on the new platform or replaced with equivalent integrations. Third-party integrations (CRM, email marketing, analytics, payment processors) need to be reconfigured and tested.
Post-Migration QA and Monitoring
A comprehensive post-launch check covers: all 301 redirects resolving correctly, no broken internal links, forms submitting and delivering correctly, analytics tracking firing accurately, page speed benchmarks met, and Google Search Console showing no indexation errors. Close monitoring of organic traffic and rankings for 4–8 weeks post-migration catches any SEO issues before they compound.
7 Factors That Drive Website Migration Cost
1. Page and Content Volume
A 50-page brochure site migrates in days. A 5,000-page content site with articles, author pages, category pages, and tag archives takes weeks of content migration and redirect mapping work. Volume is the most direct driver of time and cost.
2. Custom Functionality
Off-the-shelf CMS features migrate cleanly. Custom-built functionality — bespoke booking systems, custom database integrations, specialized e-commerce logic — may need to be rebuilt from scratch on the new platform. This is often the largest cost driver in complex migrations.
3. E-Commerce Complexity
Moving product catalogs is straightforward with the right tools. Moving customer accounts, order history, subscriptions, loyalty points, and custom pricing rules is significantly more complex. The more business logic lives in the e-commerce database, the more expensive the migration.
4. SEO Protection Requirements
Sites with significant organic traffic need comprehensive redirect mapping, pre and post crawl audits, structured data migration, and close post-launch monitoring. Sites with minimal organic traffic can migrate with lighter SEO process. For high-traffic sites, the SEO component can represent 20–30% of migration cost — and is absolutely worth it.
5. Third-Party Integrations
Every integration that needs to be reconnected and tested adds time. A site with Google Analytics, Hotjar, HubSpot, Salesforce, Mailchimp, a payment processor, and a live chat tool has 7+ integrations to verify. Each one needs to be reconfigured, tested end-to-end, and validated in the new environment.
6. Timeline Pressure
Rush migrations cost more. Migrating a site in 2 weeks instead of 8 weeks requires more parallel workstreams, more resources, and compressed QA cycles that increase risk. If you have flexibility on timeline, a measured migration with proper testing will be cheaper and safer than a sprint.
7. Who Manages the Migration
Experienced migration specialists who've done dozens of platform migrations charge a premium but bring pattern recognition that prevents common mistakes. Generalist developers who've done a few migrations charge less but may not know what they don't know. For sites with meaningful organic traffic or complex e-commerce data, the expertise premium is justified.
How to Protect SEO During a Website Migration
The non-negotiables for protecting organic traffic during any migration that involves URL changes:
- Crawl the old site completely before any changes and export all URLs
- Map every changing URL to its new equivalent with a 301 redirect
- Test all redirects before launch — not just a sample
- Submit the new sitemap to Google Search Console immediately post-launch
- Monitor Search Console for crawl errors and coverage issues daily for 4 weeks
- Watch organic traffic and rankings closely for 8 weeks — catch regressions early
- Don't change URLs during a migration unless there's a specific reason to
If you're considering a website migration and want to understand the scope and risks involved, we can walk you through the process.