Website relaunch
Keep your rankings

Why a Relaunch Puts SEO at Risk

A website relaunch is one of the most critical moments for your search engine optimization. New URLs, changed content, different site structures — each of these changes can cause Google to reassess your entire website. Without careful planning, rankings built up over years can disappear within days.

The good news: with the right preparation, you can execute a relaunch without sacrificing your SEO. This guide walks you through what to watch out for.

Before the Relaunch: Take Stock

Document Your Existing Rankings

Before you change a single thing, capture the current state of your site:

• Keyword rankings: Which pages rank for which keywords?
• Organic traffic: How much traffic comes from organic search?
• Top pages: Which pages drive the most traffic and conversions?
• Backlink profile: Which pages have the most and most valuable backlinks?
• Indexed pages: How many pages are in Google’s index?

This data serves as your baseline to quickly identify any losses after the relaunch.

Create a URL Mapping

URL mapping is the backbone of any SEO-safe relaunch. Build a complete redirect table:

Old URL	New URL	Redirect Type
/old-page/	/new-page/	301
/category/product/	/shop/product/	301

Every old URL needs to be mapped to a new URL. For pages that are being removed, redirect to the closest relevant page.

Conduct a Content Audit

A relaunch is the ideal time for a content audit. Evaluate all existing content:

• Keep: Well-ranking pages with current, relevant content
• Revise: Pages with potential that need a content update
• Merge: Similar pages that are cannibalizing each other
• Remove: Outdated pages with no traffic, rankings, or backlinks

During the Relaunch: Technical Execution

Setting Up 301 Redirects Correctly

301 redirects (permanent redirects) transfer the link equity from old URLs to new ones. Key points:

• 1:1 redirects: Each old URL redirects to its matching new URL — not blanket redirects to the homepage
• No redirect chains: Old URL → New URL, not Old URL → Intermediate Page → New URL
• Complete coverage: Verify that no old URL is left without a redirect

Update Internal Links

Update all internal links to point to the new URLs. Don’t rely exclusively on redirects — direct links are always better. Learn more about the importance of internal linking in the article on on-page SEO.

XML Sitemap and robots.txt

• Create a new XML sitemap with all current URLs
• Submit the sitemap in Google Search Console
• Review robots.txt — make sure no important pages are being blocked
• Remove any noindex tags that were set during development

Check Technical SEO Fundamentals

Use the relaunch as an opportunity to set up technical SEO factors correctly from the ground up:

• HTTPS on all pages
• Mobile optimization
• Core Web Vitals
• Structured data
• Canonical tags

After the Relaunch: Monitoring and Follow-Up

The First Days and Weeks

Right after go-live, the most critical phase begins:

• Monitor Google Search Console: Check daily for crawl errors, 404 pages, and indexing issues
• Watch rankings: Minor fluctuations are normal. Sharp drops signal problems
• Log file analysis: Observe how Googlebot is crawling your new website
• Fix 404 errors: Every missing redirect costs you link equity and user experience

Common Mistakes After a Relaunch

Frequent issues that hurt rankings:

• Forgotten 301 redirects for important pages
• Noindex tags from the staging environment not removed
• Internal links still pointing to old URLs
• Canonical tags pointing to wrong pages
• Images and resources returning 404 errors
• Page speed has worsened due to the new design

Be Patient

After a relaunch, Google needs time to fully crawl and evaluate your new website. Short-term ranking fluctuations are normal. Stabilization typically occurs within four to eight weeks. Dramatic losses that persist beyond two weeks, however, require immediate action.

Conclusion

A website relaunch doesn’t have to be an SEO risk — as long as you plan thoroughly. URL mapping, clean 301 redirects, and consistent monitoring after go-live are the three pillars of a successful relaunch.

If you’re planning a relaunch and need professional SEO support, take a look at my services. The blog has current articles on SEO topics and practical experience.