Website Redesign Checklist: Protect SEO and Conversion

A website redesign can improve positioning, usability and the ability to explain a product. It can also remove useful content, break established URLs or make important conversions harder to complete. The visual design is therefore only one part of the project.

The strongest redesign process protects what already works while creating room for better customer experiences. This requires decisions before design begins, coordinated implementation and careful monitoring after release.

1. Record the baseline before changing the site

Capture commercially important pages, organic landing pages, conversion journeys, lead quality and current measurement configuration. Note which forms, call-to-action paths and product explanations support active buying decisions. Without a baseline, a launch can be aesthetically successful and commercially unmeasurable.

2. Identify which pages and information must survive

Audit the existing site before writing a new sitemap. Some pages should be rewritten, some merged and some retained with only presentation improvements. Record why each decision supports the reader. Pay attention to service, product, comparison and useful reference pages that already address commercial search intent.

Do not replace specialist pages with a single generic service overview simply because the new navigation looks cleaner. If content is removed, evaluate whether an equivalent destination exists before planning a redirect.

3. Build a URL and redirect map

Google’s site moves and migrations guidance recommends preparing URL mappings, redirecting changed URLs, testing the new site and monitoring both old and new paths. Treat redirects as part of the release plan, not a clean-up after launch.

Avoid redirect chains and competing canonical HTTP 200 pages. Confirm old URLs at the actual delivery layer, including any CDN or edge redirects, rather than trusting route configuration alone.

4. Protect conversion paths

A redesign should make it easier for a buyer to understand what you do, whom it helps and what happens after making an enquiry. Validate the information hierarchy and calls to action against real tasks, not only stakeholder aesthetic preferences.

Test forms, booking journeys, mobile interaction, consent interfaces where relevant and post-submission handoffs. Confirm that leads arrive in the right system with correct source and context fields. An attractive contact page is not effective if the CRM never receives a usable record.

5. Measure performance with the right diagnostics

Google’s Core Web Vitals documentation defines LCP, INP and CLS as indicators of loading, interaction responsiveness and visual stability. Use them alongside PageSpeed Insights diagnostics and real user data where available, not as a stand-alone conversion forecast.

Prioritise large media, render-blocking resources, unused JavaScript and layout instability when supported by the diagnostics. Mobile and desktop results should be evaluated separately because devices and network conditions differ.

An improved Lighthouse score is useful evidence of technical progress, but it does not prove that conversion rate increased. Validate commercial effects through working events, user research and meaningful before-and-after comparisons.

6. Release only after completing the acceptance checklist

7. Monitor after launch and respond to evidence

Check crawl errors, sitemap status, indexing changes and organic landing-page performance. Also review enquiries, form errors, page interactions and feedback from sales teams. A temporary change in search visibility can have several causes; diagnose the specific page and route before making broad changes.

NBT’s Google Search Console guide covers practical indexing and visibility diagnosis. Use it alongside analytics and CRM reporting so that the team understands both technical search effects and the quality of commercial interactions.

8. A practical redesign decision framework

Before launch, ask whether the redesign preserves proven value while improving a defined user problem. At launch, require verified routes and tracking. Afterwards, compare observed behaviour with the baseline and investigate significant deviations. Keep a record of changes so that the team knows what was altered and why.

Website work should connect SEO, user experience, measurement and the wider growth system. NBT’s Growth Marketing Agency brings those disciplines together when an organisation needs coordinated implementation. The goal is a website that supports better customer decisions, not merely a new visual identity.