A CMS migration moves a website from one content management system, the software used to create and manage pages, to another. For a mid-size business site, the timeline usually runs in phases across several weeks to a few months, depending on content volume and complexity.
Size alone does not set the date. Integrations, design changes, and approval speed shape the schedule more. A clear inventory and freeze on new content keep the work moving.
Official resources:
- Follow Google's site-move checklist for URL changes — Verify redirect mapping, sitemap, and monitoring steps to preserve search rankings when URLs change.
- Follow Google's hosting-move checklist when URLs stay the same — Verify DNS, crawling, and monitoring steps for moving CMS infrastructure without changing visible URLs.
Table of Contents
- What sets the schedule?
- How do you prepare before building?
- How do content and design transfer?
- How do you test and launch safely?
- What needs attention after go-live?
What sets the schedule?
A mid-size site often carries many pages, posts, images, and documents, plus forms and booking or payment tools. Each link to a customer database, email platform, or reporting setup adds planning and testing. Custom templates and member areas add further review time.
Reusing the current design shortens the project. A fresh layout, new navigation, or rewritten content lengthens it. Redirects for changed addresses and cleanup of old pages also take care. Common schedule drivers include:.
- volume of pages, media files, and blog posts
- number of forms, integrations, and user roles
- design reuse versus full redesign
- speed of stakeholder review and approval
How do you prepare before building?
Preparation prevents rework later. Start with a full inventory of pages, files, forms, and connected tools. Decide what to keep, merge, update, or delete. Assign one owner for final approvals. Set up the new platform early with user roles, basic templates, and tracking.
Define address rules for pages that will change. Freeze major content edits once export begins so nothing gets lost. A short discovery review should name risks, such as missing fonts, embedded videos, or password-protected material. Fix access and licenses before the build starts. Clear records at this stage make every later phase faster.
How do content and design transfer?
Content transfer means exporting text, images, and files, then shaping them to fit new templates. Automated import handles simple pages well. Complex layouts, tables, and embedded media often need manual adjustment. Design work runs alongside migration. Teams build templates for home, service, article, and contact pages first.
Then they place real content to check spacing, headings, and calls to action. This step exposes formatting problems while they are still easy to fix. Features need separate attention. Forms, search, calendars, and checkout flows must be rebuilt and connected. Test submissions, confirmations, and notifications before treating any feature as complete.
How do you test and launch safely?
Testing checks appearance, function, and access on phones, tablets, and desktops. Review menus, internal links, downloads, and media playback. Check load speed and confirm that forms route to the right inboxes. Before launch, map every old address to its new match.
Broken links hurt readers and reduce visits from search. Confirm tracking codes, consent notices, and contact details work in the staged copy. Choose a low-traffic window for cutover. Publish the new site, apply redirects, and test key paths again. Keep staff ready to fix display faults, missing files, or form errors quickly.
What needs attention after go-live?
Watch the site closely for the first few weeks. Track contact requests, calls, bookings, and checkout completions. Compare patterns with prior weeks to spot a drop tied to a form or page fault. Fix crawl errors, missing images, and slow pages in order of business impact.
Update sitemaps and internal links that still point to retired addresses. Brief front-desk and sales staff on new page locations. Keep a full backup of the old site until the new one proves stable. Retain passwords, export files, and redirect records in one shared folder. That package saves time if a late fault needs review.
