A new website should bring more enquiries, not fewer. Yet it is common for a business to launch a beautiful redesign and then watch Google traffic fall sharply in the weeks that follow. Phone calls slow down. Pages that used to rank on page one are nowhere to be found.
In almost every case, the cause is the same: the old website's SEO value was not carried over to the new one. URLs changed without redirects, useful content was cut "to keep things clean", or a setting from the staging site went live.
This guide gives you a practical, step-by-step SEO migration plan for a redesign, a platform change (for example, moving from Wix or an old custom site to WordPress or Next.js) or a domain move.
Why redesigns lose rankings
Google ranks individual URLs, not whole websites. Each page has built up signals over time - links from other websites, internal links, engagement and relevance for particular searches. When a page's URL changes or the page disappears, those signals are at risk unless Google is clearly told where the page has moved.
The most common causes of post-launch drops:
| Cause | What happens |
|---|---|
| Changed URLs with no 301 redirects | Old pages return 404; their ranking signals are lost |
| Removed or shortened content | Pages no longer answer the searches they ranked for |
| Staging settings left live | "noindex" tags or robots.txt blocks hide the new site |
| Changed headings, titles and meta tags | Pages lose relevance for their keywords |
| Weaker internal linking | Important pages become harder to reach |
| Slower new site | Worse experience, especially on mobile |
| Lost structured data | Rich results such as FAQs or breadcrumbs disappear |
Phase 1: Before design starts
Record a benchmark
Export data from Google Search Console and Google Analytics 4 for the past several months: top pages by clicks, top queries, and pages that generate enquiries. You will need this to compare after launch.
Crawl the existing website
Use a crawler such as Screaming Frog to list every URL on the current site, along with its title, meta description, H1, canonical and status code. Add URLs from your XML sitemap and from Search Console that the crawler might miss.
Identify your most valuable pages
Mark pages that:
- Get significant organic traffic
- Generate calls, WhatsApp clicks or form submissions
- Have backlinks from other websites
- Rank for important commercial keywords
These pages need the most protection.
Phase 2: During design and development
Keep URLs the same wherever possible
The safest redirect is the one you do not need. If the old URL structure is reasonable, keep it.
Protect content on valuable pages
Designers often want shorter pages. That is fine for some pages, but for pages that rank well, keep the substance - the headings, key paragraphs, FAQs and details that answer searchers' questions. Improve the presentation without stripping the content.
Build a URL redirect map
Create a spreadsheet with every old URL and its new destination:
| Old URL | New URL | Status | Notes |
|---|---|---|---|
| /services.html | /services | 301 | Top traffic page |
| /seo-company-jaipur.php | /seo-company-jaipur | 301 | Keep content |
| /blog/2019/old-post | /blog/old-post | 301 | Has backlinks |
| /old-offer-page | /services/website-development | 301 | Closest relevant page |
Rules for good redirects:
- Redirect each old URL to the most relevant new page, not just the home page
- Use 301 (permanent) redirects
- Avoid chains - old URL should go straight to the final URL
- Only let a URL return 404 if there is genuinely no equivalent content
Carry over on-page SEO
For each important page, transfer or improve the title tag, meta description, H1, heading structure, image alt text and internal links. Also carry over or add structured data - Organization or LocalBusiness, Article, Product, FAQPage and BreadcrumbList where relevant.
Make sure the new site is fast
Test the staging site with PageSpeed Insights. Pay attention to Core Web Vitals on mobile, since most Indian users browse on phones. Teams who handle WordPress development or modern frameworks should deliver a faster site, not a slower one.
Block staging from Google - correctly
Protect the staging site with a password rather than relying only on noindex. And keep a launch checklist item to remove any noindex or robots.txt blocks before go-live.
Phase 3: Launch day
Run through this checklist on launch day:
- Remove staging blocks - check robots.txt and page source for "noindex".
- Confirm HTTPS works and all versions (http, www, non-www) redirect to one preferred version.
- Test redirects from your map - every important old URL should 301 to the right new URL.
- Check canonical tags point to the new live URLs, not staging.
- Submit the new XML sitemap in Search Console.
- Use URL Inspection to request indexing for your most important pages.
- Confirm analytics, conversion tracking, call and WhatsApp click events still fire.
- Test forms - submit a real enquiry and confirm it arrives.
- If you changed domain, use Search Console's Change of Address tool after redirects are live.
Choose a launch time when your team can monitor closely - not just before a holiday.
Phase 4: The weeks after launch
Monitor Search Console closely
Check the Pages report for new 404 errors, "redirect error" and "excluded by noindex" issues. Fix problems as soon as they appear.
Compare with your benchmark
Compare clicks and impressions for your top pages and queries against the benchmark. Some fluctuation is normal in the first weeks. A sustained drop on specific pages usually points to a specific cause - a missing redirect, lost content or a technical issue.
Re-crawl the new site
Crawl the live site to find broken internal links, redirect chains, missing titles and orphan pages.
Update external links you control
Update links on your Google Business Profile, social profiles, directory listings such as IndiaMART or JustDial, and email signatures to point to the new URLs.
Special cases that need extra care
Changing platforms
Each platform has its own URL patterns. Wix blog posts often sit under /post/, Shopify uses fixed paths such as /products/ and /collections/, and WordPress uses whatever permalink structure you choose. Moving between platforms almost always changes URLs, so the redirect map is essential. Check how the new platform lets you create redirects - some have limits or require an app or server configuration.
Moving from HTTP to HTTPS
Redirect every HTTP URL to its HTTPS version with a 301, update internal links and canonical tags, and make sure no images or scripts still load over HTTP.
Merging two websites
If you are combining a second brand or an old microsite into your main website, map every URL from both sites. Merge overlapping content into one stronger page rather than keeping two weak ones.
Adding new language versions
If the redesign adds Hindi or regional language versions, plan the URL structure (for example, a /hi/ folder) and hreflang tags from the start, and have translations reviewed by a fluent speaker.
Removing pages deliberately
If you are retiring a product or service, redirect its page to the closest relevant alternative. Use a 404 or 410 only when there is genuinely no suitable replacement.
Who should own the migration checklist
Assign one person - from your side or your agency - to own the SEO migration checklist from benchmark to post-launch monitoring. Designers, developers and content writers each touch part of the process, and problems usually appear in the gaps between them.
Key takeaways
- Google ranks URLs; when URLs change, use 301 redirects to the most relevant new page.
- Benchmark traffic and crawl the old site before design begins.
- Keep valuable content - redesign the presentation, not the substance.
- Remove staging blocks, test redirects and submit the sitemap on launch day.
- Monitor Search Console closely for several weeks and fix issues quickly.
- Avoid combining a redesign, platform change and domain change in one launch if you can.
Redesign with confidence
We plan SEO migrations as part of every website development project, and we can also review a redesign another team is building. If your traffic dropped after a recent launch, we can help find the cause. Book a free consultation or see our SEO services - you will get a clear plan and written quote before any work begins.
