Website Redesign SEO Checklist: Keep Your Rankings Through a New Design

Is a redesign a migration?

Only if URLs change. Google treats a move where URLs stay the same as the simplest kind of move (Google: site moves without URL changes). But "same URLs" is rarer than teams think. New themes often add or drop a trailing slash, rename the blog folder or change product URLs. Before you call it a redesign, crawl the old site and the staging site and compare the URL lists. If even 5% of URLs differ, use the full site migration SEO checklist and its URL map.

Why redesigns lose traffic

A redesign rarely loses rankings because of the new look. It loses them because something that earned the ranking was quietly removed. The four usual causes:

1. Cut content. A designer shortens a page to fit the new layout. The FAQ, the comparison table or the paragraph that answered the searcher's question goes away.
2. Reset titles and headings. New templates often build titles from a default pattern ("Page name | Brand") and drop the words that matched the search.
3. A block left on. The staging site had a noindex tag or "Disallow: /" in robots.txt, and it shipped to production.
4. Slower pages. Big hero videos, sliders and heavy scripts make pages slower on phones.

The redesign checklist

Before launch (on staging)

• Crawl the live site and save the export: URL, title, meta description, H1, word count, canonical, internal links.
• Save 28 days of Search Console clicks and impressions by page, and GA4 organic sessions and conversions by landing page.
• Compare old vs staging URL lists. Any difference means you need redirects.
• For your top 20 pages by clicks, compare word count and headings. Restore any section that answered what people searched for.
• Copy over titles, meta descriptions and H1s for every page that gets clicks, unless you have a tested better version.
• Check that structured data (product, breadcrumb, FAQ, organization) is still in the new templates with the Rich Results Test.
• Check that navigation still links to every important page. Pages that drop out of the menu often lose internal links and rankings.
• Test speed per template with PageSpeed Insights or Lighthouse. Good Core Web Vitals are LCP 2.5 s or less, INP 200 ms or less, CLS 0.1 or less (Google).
• Show the same main content on mobile and desktop. Google indexes the mobile version.
• Install analytics and conversion tracking on every new template.

Launch day

• Remove noindex tags, X-Robots-Tag headers, "Disallow: /" and passwords used on staging.
• Open /robots.txt on the live site and read it.
• Inspect the homepage and one page per template with URL Inspection > Test live URL in Search Console.
• Crawl the live site: no 4xx or 5xx, no internal redirects, no missing canonicals, no noindex on pages you want found.
• Trigger one conversion yourself and see it in GA4 Realtime.

Weeks 1 to 4

• Compare clicks per page with the baseline every week. Investigate any top page down more than 30%.
• Check Search Console > Indexing > Pages for new errors.

Worked example

Brightsmile Dental (a fictional practice at brightsmile-dental.com) redesigns its site. Its "teeth whitening cost" page had 1,400 words, a price table and a 6-question FAQ. The new design shows a hero image, three short paragraphs and a "Book now" button. Clicks to that page fall by half in three weeks.

The fix is not to undo the design. It is to put the price table and the FAQ back below the fold, and restore the old title, "Teeth Whitening Cost in Austin: 2026 Prices", which the new template had replaced with "Whitening | Brightsmile". The redesign checklist catches this before launch with one row: compare word count and headings for your top 20 pages.