SEO Migration Checklist
A calm, ordered guide to moving your website without losing the rankings you worked to earn, written for Australian businesses changing their platform, design, domain or URL structure.
What an SEO migration is and why it carries risk
An SEO migration is moving a website to a new platform, design, domain or URL structure while protecting its search rankings. Done badly it can sink your traffic for months, because broken redirects, lost content or blocked pages can wipe out years of earned visibility almost overnight.
That short paragraph is the warning and the reason for this page. A site move sounds like a build job, so it often gets handed to a developer who treats search as an afterthought. The site looks better on launch day, then a fortnight later the phone goes quiet and nobody can say why. The rest of this checklist exists to keep that from happening to you.
The trouble is that a website is not just a set of pages to a search engine. It is a map of addresses, links and signals that have been built up over time. Every URL that ranks, every page another site points to, every internal link that guides a reader, all of it is tied to the structure you are about to change. Move things without a plan and you snap those threads. The fix is not luck or talent. It is a method you run in order, before, during and after the move.
Migrations come in several shapes, and each one breaks something different. A redesign keeps the same addresses but can strip out content. A platform change, such as shifting to Shopify or WordPress, almost always changes how URLs are formed. A domain change moves every address at once. Going from HTTP to HTTPS, restructuring URLs, or merging two sites into one all carry their own traps. The checklist below covers the steps that apply across all of them.
Through this guide we walk the full sequence: why migrations cause traffic drops, the seven core steps, a pre-launch checklist and post-launch monitoring. If you would rather have an experienced hand on the move, our Technical SEO service runs migrations of this kind for Australian businesses.
Why migrations cause traffic drops
A search engine has to relearn your site after a move. If the path from the old version to the new one is broken in any way, the rankings you earned can slip before you spot it. Here is where it usually goes wrong.
Missing redirects
When an old URL changes and nothing points the old address to the new one, both visitors and search engines hit a dead end. Every unredirected page that used to rank is a page of traffic gone.
Redirect chains
One old page redirecting to a second, which redirects to a third, weakens the signal at each hop and slows the page load. Every redirect should jump straight from the old address to the final one.
Lost content
A redesign that trims copy, cuts headings or drops whole pages removes the very words that earned the ranking. The new design can look cleaner and rank far worse for the same search.
Changed metadata
New title tags, headings and descriptions thrown together during a build can throw away carefully tuned wording. Carry the old metadata across unless you have a clear reason to improve it.
Broken internal links
Links inside your own pages that still point at the old URLs leave readers and crawlers bouncing off dead ends. Update every internal link to the new address rather than relying on redirects.
A stray robots block
The crawl block you used to hide the staging site, left in place on launch, tells search engines to stay away. It is silent, easy to miss, and one of the fastest ways to vanish from results.
The SEO migration checklist in seven steps
A migration is a sequence, not a single launch button. Run these steps in order and most of the risk drops away. Skip the early ones and you will be guessing later, usually while traffic falls.
Benchmark first
Before anything moves, record current rankings, organic traffic, top pages and key queries. Without this snapshot you cannot tell whether the move helped, held steady or hurt.
Crawl and map URLs
Crawl the live site to list every URL, then map each old address to its closest match on the new site. This map is the backbone of the whole migration.
Plan 301 redirects
Turn the URL map into a set of 301 redirects, old to new, point to point. No chains, no loops, and no pages quietly left without a destination.
Preserve content
Carry across the copy, headings, titles and internal links that earned your rankings. Keep what works, and only change wording where you have a clear reason.
Sitemap and robots
Update the XML sitemap to list only the new URLs, and check the robots file allows crawling. Keep the staging crawl block off the live site.
Test on staging
Run the full checklist on a staging site that search engines cannot reach. Verify redirects, content, metadata and links against your map before launch.
Launch and monitor
Go live carefully, submit the new sitemap, then watch Search Console, redirects, crawl errors and rankings closely for several weeks.
Hold and review
A short dip is normal. Resist undoing things in a panic. Give it a few weeks, fix what the data flags, and let search engines settle into the new structure.
Pre-launch checklist
Almost every migration that goes wrong was lost before launch, not after it. The work done in the weeks leading up to the switch is what decides whether traffic holds. Treat the staging build as a dress rehearsal where mistakes cost nothing, because once the site is live they cost rankings.
What to confirm before you switch
- The benchmark is saved. Rankings, traffic, top pages and key queries are recorded so you have a before picture to measure the after against.
- Every URL is mapped. A full crawl of the live site lists each address, and each one points to its match on the new site or a deliberate decision to retire it.
- Redirects are point to point. Each 301 jumps straight from the old URL to the final destination, with no chains, loops or missing entries.
- Content carried across. The copy, headings, titles and descriptions that earned rankings are present on the new pages, not trimmed for a tidier layout.
- Internal links updated. Links inside your pages point at the new URLs directly, so readers and crawlers never have to bounce through a redirect.
- Sitemap and robots ready. A fresh XML sitemap lists the new URLs, and the robots file is set to allow crawling the moment the site goes live.
Test it on staging
Build the new site on a staging environment blocked from search engines, then run the list above against it. Click through the redirects, compare page content side by side with the old version, and check that titles and headings survived the move. Catching a broken redirect on staging takes a minute. Catching the same one after launch can mean weeks of lost traffic. The one rule that ends careers here is forgetting to remove the staging crawl block before going live, so make that the final thing you check.
Post-launch monitoring
Launch day is the middle of the job, not the end. The first few weeks after a move are when problems surface, and the businesses that come through cleanly are the ones watching closely enough to catch them early. A small slip found on day three is a quick fix. The same slip found a month later may already have cost a season of enquiries.
What to watch after launch
- Search Console coverage. Submit the new sitemap and watch the coverage and indexing reports for pages that fail to get picked up or throw errors.
- Redirect checks. Spot-check that old URLs still land on the right new pages, and confirm none have slipped into a chain or a dead end.
- Crawl errors. Keep an eye on 404s and server errors. A spike in not-found pages usually means a batch of redirects was missed.
- Rankings and traffic. Compare against the benchmark you saved. A small early dip is expected, but a steady slide that does not recover needs chasing down.
How long to give it
For a clean move, most Australian sites settle within two to six weeks as search engines recrawl and reprocess the new structure. A brief dip in the first fortnight is normal even when every step was done right, so resist the urge to start changing things in a panic. If traffic is still down after six to eight weeks, that points to a real issue worth solving, usually a batch of missed redirects, pages that were not carried across, or a crawl rule blocking access. The discipline that wins is patience paired with close watching, not guesswork.
If the numbers look off and you cannot find the cause, that is the moment to bring in help rather than keep guessing. A trained eye can read the patterns in Search Console and pinpoint what broke, often in a single afternoon. Our Technical SEO service handles exactly this kind of recovery work.
Migrations by business type and city
The checklist holds for everyone, but the kind of move and what is at stake shifts with the business. Here is how a migration tends to play out for a few common kinds of Australian site.
Retail and online stores
A shop replatforming to Shopify is the classic case, because the new platform builds its product and collection URLs differently from the old one. Every product page, category and old promotion needs mapping, and the stock that earned reviews and links matters most. A Melbourne homewares store moving stores cannot afford to drop the pages its best sellers rank on, so the URL map is the whole game here.
Trades and home services
A plumber or electrician redesigning an ageing site, or merging an old microsite into the main one, usually has fewer pages but high local value. The suburb and service pages that bring in calls are the ones to protect. For a tradie in suburban Brisbane, losing the ranking on a single service page can mean a real drop in jobs, so the redirects on those pages get checked twice.
Professional and health services
Accountants, clinics and law firms often move from HTTP to HTTPS, or shift to a fresh WordPress build, while carrying years of trusted articles. The content is the asset, so the priority is preserving every guide, FAQ and explainer word for word. A Sydney clinic moving platforms wants its patient-facing pages to read exactly as they did, with the addresses redirected cleanly behind them.
Why the city still matters
Local relevance is woven into many searches, so a move that quietly drops your city and suburb signals can soften your visibility right where it counts. Keep the location wording, the local pages and the regional internal links intact through the change. If you want the move handled by people who do this for Australian businesses, our Technical SEO service plans the URL map, the redirects and the monitoring for you.
SEO migration, answered
The questions Australian business owners ask most often before they move a site that already ranks.
Technical SEO serviceAn SEO migration is the process of moving a website to something new while protecting its search rankings and traffic. That move might be a redesign, a switch of platform such as going to Shopify or WordPress, a change of domain, a shift from HTTP to HTTPS, a new URL structure, or merging several sites into one. The work is mostly about making sure search engines and visitors can still find every page after the change, usually through carefully planned 301 redirects and preserved content.
Most ranking drops trace back to a handful of avoidable mistakes: URLs that changed without redirects pointing the old address to the new one, redirect chains that dilute the signal, page content or titles that got trimmed during the redesign, internal links left pointing at dead pages, or a stray robots rule that blocks crawling. A search engine has to relearn the new site, and if the path from the old version is broken, the rankings you earned can slip before you notice.
For a clean migration where redirects and content are handled well, most Australian sites settle within two to six weeks as search engines recrawl and reprocess the new structure. A short dip in the first fortnight is normal even when everything is done right. If traffic is still down after six to eight weeks, it usually points to a problem worth chasing, such as missed redirects or pages that were not carried across.
You need a 301 redirect for every old URL that has either earned traffic, attracted links, or holds content people still want. The cleanest approach is to crawl the live site, list every URL, and map each one to its closest match on the new site, point to point with no chains. Pages that genuinely no longer exist and have no equivalent can return a 410, but guessing wrong here is where a lot of traffic gets lost, so map first and prune later.
Yes. Build and test the new site on a staging environment that is blocked from search engines, then check the redirects, titles, headings, internal links and content against your map before anything goes live. Staging lets you catch broken redirects and missing pages while they cost nothing. Just remember to remove the crawl block when you launch, because a staging rule left in place is one of the most common ways a new site quietly disappears from search.
You can, but it raises the risk, because you are asking search engines to relearn two things at once. When the timeline allows, it is safer to make one major change, let it settle, then make the next. If both have to happen together, lean harder on a complete URL map, thorough redirects with no chains, and close monitoring in the weeks after launch so any slip is caught quickly.
Planning a move and want it done safely?
A migration is patient, ordered work, and the checklist above is enough to run one yourself if you have the time and a steady hand. If you would rather not gamble your rankings on a build going smoothly, our Technical SEO service plans the URL map, sets up the redirects, tests on staging and watches the numbers after launch. No pressure and no lock-in, just a move handled by people who have done it before.
See our Technical SEO service