A new website is exciting, but it is also the moment many businesses lose search traffic they spent years building. URLs change, pages disappear, content gets shortened and redirects are forgotten. This guide explains technical SEO for website migration in Ahmedabad in 2026, covering redesigns, platform changes (for example from a custom PHP site to WordPress) and domain moves, so your new site launches without avoidable losses.
It is written for business owners and marketing managers who are working with a web developer and want to know what to ask for. If you are still deciding whether to redesign, our website redesign checklist is a good place to start.
Why Technical SEO for Website Migration in Ahmedabad Needs Planning
Search engines know your current pages by their URLs. When those URLs change without proper redirects, Google sees the old pages as gone and the new ones as unknown. Rankings built over years can drop while the new pages are reassessed.
The risk is highest for sites with many pages that already rank, such as manufacturers with product catalogues, education institutes with course pages, or real estate firms with project pages. A small five-page site has less to lose, but still needs care.
Types of Migration and Their Risk
| Migration type | Example | Typical risk |
|---|---|---|
| Design-only change, same URLs | New theme on the same WordPress site | Low to medium |
| URL structure change | Changing /products.php?id=12 to /products/ss-valves/ | Medium to high |
| Platform change | Custom PHP to WordPress or WooCommerce | High |
| Domain change | Old brand domain to a new brand domain | High |
| HTTP to HTTPS, or www changes | Moving to https://www. | Medium if redirects are correct |
Step-by-Step Migration Plan
1. Record the current state
Before anything changes, crawl the existing site and export a list of every URL. From Google Search Console, export pages with clicks and impressions over the last twelve months. From Google Analytics 4, note top landing pages and conversion pages. This becomes your baseline.
2. Decide what happens to each page
For every important old URL, decide whether it stays, moves to a new URL or is merged with another page. Pages that bring traffic or enquiries should not be dropped without a strong reason.
3. Build the redirect map
Create a spreadsheet with old URL in one column and the best matching new URL in the other. Use permanent 301 redirects. Avoid sending everything to the home page, which confuses users and search engines.
4. Keep the content that ranks
New designs often shorten text to look cleaner. If a page ranks because it explains a product thoroughly, keep that depth on the new version. Preserve headings, FAQs and useful details.
5. Test on a staging site
Build the new site on a password-protected staging environment and block it from indexing. Check titles, meta descriptions, headings, canonical tags, structured data, internal links, mobile layout and page speed before launch.
6. Launch carefully
Choose a quieter period, not the week before a trade fair or during a festival sale. Remove any staging noindex rules, apply redirects, submit the new XML sitemap and check that robots.txt allows crawling.
7. Monitor for at least eight weeks
Watch Search Console daily in the first week, then weekly. Look for spikes in "not found" errors, pages excluded from the index, and drops in clicks for important pages. Fix problems quickly.
Launch Day Checklist
- Staging noindex removed and robots.txt correct.
- All redirects live and tested with a sample of old URLs.
- New XML sitemap submitted in Search Console.
- Analytics and conversion tracking working, including forms and WhatsApp clicks.
- Google Business Profile website link updated if the URL changed.
- Canonical tags pointing to the new URLs.
- HTTPS working on every page with no mixed-content warnings.
Common Migration Mistakes
- Launching with the staging site's noindex tag still in place.
- Redirecting all old pages to the home page.
- Deleting blog posts or product pages that brought steady traffic.
- Changing domain, platform and design all at once without extra planning.
- Forgetting image URLs and PDF brochures that ranked or were linked from other sites.
- Not keeping the old domain registered after a domain change.
Who Does What During a Migration
Migrations go wrong most often when everyone assumes someone else is handling SEO. Agree roles in writing before development starts. The developer builds the site and implements redirects. The SEO specialist prepares the URL inventory, redirect map and pre-launch checks. The business owner or marketing manager approves which pages stay, merge or go, and signs off content. One person should hold the final launch checklist.
What to Expect After Launch
Some movement in rankings is normal for a few weeks while search engines process the change. A well-planned migration usually settles back to similar or better visibility, especially if the new site is faster and better structured. If traffic keeps falling after several weeks, review redirects, indexing and content differences page by page.
Our technical SEO team often works alongside developers during migrations to handle redirect mapping, staging checks and post-launch monitoring.
If you are planning a redesign or platform change, explore our technical SEO services in Ahmedabad or contact us before the new site goes live.
