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Website redesign: when and why to launch one?

The 7 signals that indicate it's time to redesign your site, and how to preserve your SEO during migration.

By AgencyFebruary 28, 20262 min read

A website is like a house: over time, walls crack, standards change, needs evolve. When should you redesign? Here are the unmistakable signals.

The 7 signals for a redesign

  1. Your site is over 4 years old without a major visual redesign.
  2. It's not responsive or poorly optimized for mobile.
  3. PageSpeed < 50 on mobile (big negative signal for Google).
  4. Your bounce rate > 70% on landing pages.
  5. Your tech is outdated (PHP 7.x, mostly jQuery, abandoned CMS).
  6. Your offering has evolved and the site no longer reflects it.
  7. Your competitors are 2 visual generations ahead.

The 4 redesign types

  • Cosmetic: new theme, brand identity. $3-8k, 4-6 weeks.
  • Structural: new sitemap, new content, same CMS. $8-20k, 2-4 months.
  • Technological: CMS migration (e.g., old WordPress → Next.js). $20-50k, 3-6 months.
  • Strategic: total redesign with marketing repositioning. $30-80k, 4-9 months.

Web team working on site mockups

How NOT to lose your SEO

A redesign is the #1 moment when sites lose 30-80% of their SEO traffic. Mandatory checklist:

  • Map all existing URLs receiving traffic (Search Console)
  • Create a comprehensive 301 redirect plan (old URL → new)
  • Keep at least the same H1s, title tags, and meta descriptions for pages that work
  • Notify Google via Search Console (submit new sitemap immediately)
  • Monitor for 90 days: traffic, 404 errors, deindexed pages

Steps of a successful redesign

  1. Audit: UX, SEO, technical, content (2-3 weeks)
  2. Strategy & sitemap: validation of user flows
  3. Wireframes + design: clickable Figma mockups
  4. Development: integration + CMS + optimizations
  5. QA + testing: cross-browser, mobile, performance, accessibility
  6. Go-live with redirect plan
  7. 90-day SEO + UX monitoring

Pitfalls to avoid

  • Cutting the old site before verifying all redirects. You'll lose your ranking.
  • Underestimating content production. That's often 40% of the total time.
  • Trying to redo everything in 6 weeks. A rushed redesign costs more than a postponed one.
  • Skimping on the QA phase. A bug on the contact form = 0 leads for 2 weeks.

Conclusion

A redesign isn't a designer's whim. It's a business investment that should improve conversion rate, SEO, and user experience. If these 3 axes aren't explicitly worked on, you're just doing expensive makeover work.

Considering a redesign? Let's talk, we start with a free audit.

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