Moving a website to a new design, platform, domain or hosting setup can improve performance and make the site easier to manage. It can also cause a sudden drop in search visibility if the move is treated as a simple design launch rather than a migration.
For Leicester businesses replacing an established website, the safest approach is to plan the migration before development is finished. SEO protection is much easier when redirects, content, tracking and technical checks are part of the project from the beginning.
Start with a crawl of the existing website
Before anything changes, create a record of the current site. List the important URLs, page titles, headings and status codes. This gives the development team a reference point and helps identify which pages must be preserved.
Do not rely only on the main navigation. Older websites often have landing pages, blog posts, PDFs or campaign URLs that still attract visits even though they are no longer prominent.
Review organic landing pages and search performance
Analytics and search data help identify which pages matter most. Look for pages that already receive organic traffic, generate enquiries or rank for commercially useful terms.
These pages deserve particular care. If a high-performing URL is removed or heavily changed without a plan, the new website may launch looking better while performing worse.
Decide which URLs should stay
Keeping an existing URL is often the cleanest option when the subject of the page remains the same. There is no SEO benefit in changing a sensible, established URL simply because a new website is being built.
Where URLs do need to change, create a redirect map before launch. Each old URL should point to the most relevant new equivalent rather than sending everything to the homepage.
Use permanent redirects properly
301 redirects tell browsers and search engines that a page has permanently moved. They also help transfer signals from the old URL to the new one.
Avoid long redirect chains where one old URL points to another old URL before reaching the final destination. Redirect directly wherever possible.
For larger migrations, test the complete redirect list before DNS is switched.
Do not accidentally remove useful content
A redesign often includes a content clean-up, which is sensible, but deleting pages purely because they look old can remove search value.
Review whether an older page should be updated, merged into a stronger page, redirected or genuinely removed. If several thin pages cover the same subject, consolidation can be a better solution than migrating all of them.
This is also an opportunity to avoid repeating weak local SEO content. One useful, detailed resource is usually more valuable than several near-identical pages with only the town name changed.
Check page titles, headings and metadata
During a redesign, it is easy for carefully written titles and descriptions to be replaced with default wording. Export or record existing metadata before launch and decide what should be retained or improved.
The new site should also maintain a clear heading structure and descriptive internal links. Our Leicester SEO service includes this kind of technical and on-page review when search visibility is part of a redevelopment project.
Keep analytics and conversion tracking intact
A website migration should not create a gap in reporting. Check that analytics, consent tools, call tracking and conversion events are installed on the new site before launch.
Test contact forms, ecommerce transactions, downloads and other important actions. A migration is not successful if traffic remains stable but leads stop being recorded.
Check robots, sitemaps and indexation settings
Development sites are often blocked from search engines, which is correct during the build. The risk is forgetting to remove those restrictions at launch.
Check robots.txt, WordPress visibility settings, noindex tags, canonical tags and the XML sitemap. Submit the new sitemap in the relevant search tools once the site is live.
Test speed and mobile usability
A new site should ideally improve performance, not make it worse. Test representative pages on mobile as well as desktop and look for oversized images, render-blocking assets, layout shifts and slow third-party scripts.
Page speed is not only an SEO concern. A faster site is easier for real customers to use.
Launch with a rollback plan
Before switching over, make sure there is a current backup of the existing website and a clear route back if something unexpected happens.
For complex launches, schedule the migration at a time when the development team can monitor the site immediately afterwards rather than making a major change and leaving it unchecked.
Run post-launch checks straight away
After launch, crawl the new website and check:
- old URLs redirect correctly;
- important pages return a 200 status;
- there are no accidental noindex tags;
- forms and ecommerce functions work;
- analytics is collecting data;
- the sitemap contains the correct URLs;
- internal links do not point to staging or old domains;
- mobile layouts and page speed are acceptable.
Continue monitoring search performance for the following weeks. Some movement can happen after a major change, but unexpected drops should be investigated quickly.
Treat migration as part of the build
The safest migrations are not added as a final task on launch day. They are planned alongside the sitemap, development and content work.
If your business is replacing an established site, our website design team for Leicester can build the migration into the project from the start. Get in touch if you would like us to review the existing site before you move it.
