Website Redesign Checklist: Don't Lose Your SEO Rankings

A website redesign does not have to cost you rankings. Search engines rank your URLs, content, internal links and technical signals, not your colour palette, so a redesign only hurts SEO when one of those changes without a plan. This website redesign SEO checklist shows you exactly what to protect, in what order, and how to tell a normal post-launch wobble from a real problem.

Most redesign checklists stop at “set up 301 redirects”. That is necessary but nowhere near enough. The redesigns we see go wrong for Australian small businesses usually kept the redirects and still lost traffic, because the new template quietly dropped the copy that ranked, or because the ads and tracking broke on launch day and nobody noticed for a month. This guide covers the whole job.

Why do rankings drop after a website redesign?

Rankings drop after a redesign because the new site changes several ranking signals at once and Google has to re-evaluate them. The usual causes, roughly in order of how often we see them:

1. URLs changed without redirects. Old pages return a 404, so every backlink and every ranking those pages held disappears.
2. Content was cut. A designer trims a 900-word service page to 150 words because it “looks cleaner”. The page looks better and ranks for far less.
3. Metadata was reset. A new theme or page builder regenerates title tags and meta descriptions from page names, wiping years of tuned titles.
4. Internal links vanished. A mega menu becomes a minimal hamburger menu, footer links disappear, and pages that were two clicks from the home page become orphans.
5. A staging block shipped to production. The noindex tag or robots.txt block that kept the staging site out of Google goes live with the new site.
6. The site got slower. Heavier animation, video headers and unoptimised images push Core Web Vitals backwards.

None of these are bad luck. Every one is visible before launch if you look, which is what the rest of this checklist is for.

Before you redesign: what should you protect?

Not every page deserves the same care. A 40-page small business site might have six pages doing almost all of the work. Find those first, because they are the ones that cannot afford a mistake.

Build your “protect list” from real data

Export the last 12 months (16 if you have it) from Google Search Console’s Performance report, by page. Then mark each URL against four questions:

Question	Where to find it	Why it matters
Does it get organic clicks?	Search Console, Pages tab	Direct ranking value
Does it have backlinks?	Search Console Links report, or a backlink tool	Authority that redirects must pass on
Does it generate enquiries or sales?	GA4 key events by landing page	Revenue at risk
Is it cited or linked elsewhere?	Google Business Profile, ads, email, social bios	Breaks if the URL changes

Any page that answers yes to one or more goes on the protect list. These pages keep their URL if at all possible, keep their content (or improve it, never shrink it) and get individually checked after launch.

Pages that answer no to all four are your freedom zone. Consolidate them, rewrite them or retire them with a redirect to the closest relevant page. This is where a redesign can genuinely improve SEO, by merging thin pages into stronger ones.

Benchmark before you touch anything

Record, on the day the old site is still live:

• Organic clicks and impressions per protected page (a Search Console export)
• Rankings for your 20 to 30 most valuable keywords
• A full crawl of the old site (Screaming Frog’s free version covers up to 500 URLs), saving every URL, title, meta description, H1, canonical and word count
• Core Web Vitals for your key templates from PageSpeed Insights
• Conversion rate by landing page in GA4

That old-site crawl is the single most useful file in the whole project. Once the old site is gone, you cannot recreate it, and it is the reference for every parity check later.

How do you build a redirect map that actually works?

The redirect map is a spreadsheet with one row per old URL and a column for its new destination. Every URL from the old crawl, plus every URL with backlinks or Search Console clicks (these sometimes include old pages the crawl did not find), needs a row.

Rules that keep it clean:

• Map one to one, to the closest equivalent. An old “blocked drains” page redirects to the new blocked drains page, not to the home page. Redirecting everything to the home page is treated by Google much like a missing page, and the rankings go with it.
• Use permanent redirects (301 or 308). A temporary 302 tells Google the move might not last.
• No chains. If the old site already redirected A to B, the new map should send both A and B straight to C, not A to B to C.
• Match your trailing slash and case conventions. On a site that ends every URL with a slash, the redirect target should too, otherwise you add an extra hop.
• Keep redirects permanently. Google’s own site move guidance is to keep redirects for as long as possible, generally at least a year, and Google has repeated that one-year minimum publicly. Old URLs live on in backlinks, bookmarks, emails and printed flyers far longer than that, so we simply never remove them.

On a Netlify-hosted site, for example, the redirect map becomes a plain-text file at the root of the site, one rule per line:

/services/blocked-drains/        /plumbing/blocked-drains/        301
/about-us/                       /about/                          301
/blog/2019/tips-for-winter/      /blog/winter-plumbing-tips/      301

On WordPress it is a redirect plugin or server rules, and on Shopify it is the URL Redirects screen. The format differs, the map does not.

Content parity: the step most redesigns skip

This is where same-URL redesigns lose rankings. Before launch, compare every protected page on staging against your old-site crawl:

• Word count. If a protected page has lost more than a small fraction of its copy, ask what was removed and whether it was answering a query the page ranked for.
• Title tag and meta description. Should be identical to the old ones, or deliberately improved. Never auto-generated.
• One H1 per page, as real text. Not a heading baked into a hero image or rendered only by a slider.
• H2s and the questions they answered. If the old page had an FAQ that ranked for “how much does a blocked drain cost”, that content needs to survive.
• Schema markup. LocalBusiness, FAQ, Product and Review markup is often in the old theme and silently missing from the new one. See our guide to schema markup for local businesses.
• Images and alt text. Carried over, compressed and properly sized.
• Internal links. Count the links pointing into each protected page on the old site versus staging. A big drop means the new navigation or footer has orphaned it.

A simple way to run this: crawl staging with the same tool and the same settings, then put the old and new crawl exports side by side in a spreadsheet keyed on URL. Every red cell is a conversation with your designer before launch, not a ranking problem after it.

What breaks besides SEO (the Australian small business checklist)

This is the part generic redesign checklists miss. For most of the businesses we work with, the website is the destination for paid ads, the Google Business Profile and the CRM, so a redesign touches all of them:

• Google Ads. Every ad’s final URL, sitelink and asset that points at a changed URL. Ads sent to a redirect usually still work but waste a hop, and ads sent to a 404 get disapproved. Re-check that the Google tag and conversion actions fire on the new thank-you page or form event. Our Google Ads conversion tracking setup guide covers the checks.
• Meta Ads. The pixel and Conversions API events (Lead, Purchase, Contact) need to fire from the new forms and checkout, with deduplication intact. A new form plugin is the most common cause of a silent drop. See why your Meta Ads data is wrong.
• Google Business Profile. The website link, appointment link, menu or products links all need updating if those URLs changed. A profile pointing at a 404 is a poor experience and a missed lead. If your profile is already underperforming, here is why it might not be ranking.
• Lead-source attribution. Hidden form fields that capture the UTM source or click ID frequently do not survive a new form builder, which means your CRM starts recording every lead as “direct” and you lose the ability to see which channel paid for itself.
• Email, social bios and QR codes. Link in bio, email signatures, automated email sequences and any printed QR codes all point at specific URLs. Your redirects should catch these, but test them.
• AI search citations. If ChatGPT, Perplexity or Google’s AI Overviews currently cite one of your pages, that exact URL is what they link to. Redirect it to the equivalent page with the same answer still on it.

Launch day: a one-hour checklist

Launch on a quiet weekday morning, not on a Friday afternoon before a long weekend. Then, within the first hour:

1. Check indexability. View the source of the home page and two protected pages and confirm there is no noindex tag. Load the robots.txt file and confirm it is not blocking the whole site.
2. Test the redirects. Run your old-URL list through a crawler in list mode. Every row should return a single 301 or 308 to a page that returns 200.
3. Submit the new XML sitemap in Search Console. If URLs changed, Google’s guidance also suggests temporarily keeping a sitemap of the old URLs so it discovers the redirects faster.
4. Submit a test enquiry and a test purchase. Confirm they arrive in the inbox or CRM and register as conversions in Google Ads, GA4 and Meta Events Manager.
5. Spot-check on a phone. Load the home page and your top three protected pages on mobile data, not office Wi-Fi.
6. Update the external links you control: Google Business Profile, ad final URLs, social bios.
7. Request indexing for the home page and the most important service pages using the URL Inspection tool.

On staging, use password protection rather than noindex or a robots.txt block where your host allows it. A password cannot be accidentally copied to the live site the way a noindex tag can.

After launch: what does normal look like?

Some movement after a redesign is expected while Google recrawls. What matters is the direction and whether it is concentrated on specific pages. A practical monitoring rhythm:

When	Check	Worry if
Days 1 to 3	Search Console Page Indexing report, 404s in the crawl stats	New 404s appear for old URLs, or “Excluded by noindex” jumps
Week 1	Conversions in Google Ads, GA4, Meta and your CRM	Any channel reports zero or near-zero leads
Weeks 1 to 2	Clicks and impressions per protected page	A single page falls away while others hold (that page has a specific problem)
Weeks 2 to 6	Keyword rankings against your benchmark	Losses are still deepening rather than recovering
Week 6	Core Web Vitals and conversion rate by page	The new site is slower or converts worse than the old one

The key diagnostic: a sitewide dip that recovers over a few weeks is Google re-learning the site. A loss concentrated on particular pages, or one that keeps getting worse, is almost always one of the six causes at the top of this guide. Go back to the content parity sheet for those pages first, then the redirect map.

If you have already launched and traffic has fallen, start with the redirect and indexing checks above. Our SEO audit checklist walks through the rest of the diagnosis in order.

Should you change platforms at the same time?

You can, but understand that it multiplies the risk. A redesign on the same platform changes the template. A redesign plus a replatform (WordPress to Shopify, or a page builder to a static framework) usually changes URLs, code structure, plugins, forms and tracking all at once, which is why it needs the full process above rather than a short version.

That does not mean you should avoid it. Moving off a slow, plugin-heavy setup is often the single best thing a small business can do for both rankings and conversions, and a slow website is costing you leads every day it stays live. If you are weighing platforms, our comparison of Astro and WordPress for small business websites explains what we recommend and why. Just plan the move properly, with the redirect map and content parity check done before a single page goes live.

A redesign done well can do more than hold rankings. When we rebuilt the checkout and tightened the high-intent pages for Furniture Forum, the combination of SEO and a better on-site experience took sales up 385 percent.

The website redesign SEO checklist (copy this)

Before the build

• Export 12 to 16 months of Search Console data by page
• Build the protect list (clicks, backlinks, conversions, external links)
• Crawl and save the full old site, including titles, H1s and word counts
• Benchmark rankings, Core Web Vitals and conversion rates

During the build

• Keep protected URLs unchanged wherever possible
• Build the one-to-one redirect map, no chains, no home page dumping
• Run the content parity check on every protected page
• Confirm schema, alt text and internal links carried over
• Password-protect staging

Launch day

• No noindex, robots.txt open, redirects return a single 301 or 308
• New sitemap submitted, test enquiry and purchase tracked end to end
• Google Business Profile, ad final URLs and social links updated

Weeks 1 to 6

• Watch indexing, 404s, conversions by channel and protected-page clicks
• Investigate any page-specific or deepening loss immediately

Getting your redesign right

A redesign is the one project where SEO, design, development, ads and tracking all have to be right on the same day. That is why we run our website design and development projects with SEO and paid media in the same team from the first wireframe, rather than calling SEO in after the traffic drops. If you are planning a bigger move (a new domain, a new platform or several sites being merged), our SEO migration service manages the whole transition end to end.

Planning a new website in the next few months? Book a free strategy call and we will review your current site, build your protect list and tell you exactly where the risk sits before any design work starts.