What website migration actually is

Website migration means moving your website from one hosting provider, domain name, or platform to another. It's like moving a house: you're taking everything inside (your pages, images, databases, email settings) and relocating it to a new address or a new building altogether. The goal is to end up with the same website working the same way, just in a new location.

People migrate websites for concrete reasons: a current host is too slow or unreliable, a new platform offers features the old one doesn't, costs are rising, or a business is consolidating multiple sites. The catch is that migration isn't automatic. If you don't plan it carefully, visitors can't find your site, search engines lose track of your pages, or your email stops working for a few days.

The process involves copying your files and data, updating the address where your domain points, testing everything on the new host before going live, and then monitoring for problems once you switch. Depending on what you're moving and where you're moving it, this can take anywhere from a few hours to several weeks.

Key Takeaways

  • Website migration means moving your site's files, data, and settings from one host or platform to another, and it requires planning to avoid downtime or lost search engine visibility.
  • The three main types are moving to a new host (same platform, different company), switching platforms (like WordPress to Shopify), or changing your domain name.
  • Before you migrate, back up everything, document your current setup, and test the new environment thoroughly before switching your domain over.
  • After migration, you must tell search engines about the move using tools like Google Search Console so they update their records and don't penalize you for duplicate content.
  • Common problems include broken links, lost email forwarding, slow performance, and visitors landing on error pages—most are preventable with a written checklist.

The three types of website migration

Not all migrations are the same. Understanding which type you're doing changes what you need to prepare.

Host migration means you're moving to a different hosting company but keeping the same platform and domain name. You're moving WordPress to a faster WordPress host, or moving your site from GoDaddy to Bluehost. Your website address stays the same, and the platform works the same way. This is usually the simplest type because you're not changing how the site works—just where the files live.

Platform migration means switching to a completely different system. You might move from a custom-built site to WordPress, or from WordPress to Shopify if you're adding an online store. This is more complex because you're rebuilding how content is organized, how pages are structured, and sometimes how visitors interact with the site. You may need to rewrite code, redesign templates, or restructure your content.

Domain migration means changing your website's address—from example.com to newexample.com, or from a subdomain to a main domain. Search engines treat this as a significant change, and you have to explicitly tell them the old address is gone and the new one is the replacement. This affects how people find you through search results and requires extra steps to preserve your search ranking.

What you need to do before the migration starts

The work before you flip the switch is what prevents problems after. Start by documenting everything about your current setup: your hosting account login, your domain registrar login, your email forwarding rules, any SSL certificates (the security lock on your site), and any custom code or plugins you're using. Write this down in a document you can reference during the migration.

Back up your entire website. Most hosting providers offer one-click backups, but do it yourself as well—read your files via FTP or your host's file manager, and export your database if you have one. Keep multiple copies in different places. If something goes wrong during migration, a backup is your safety net.

Test the new environment before you move anything live. If you're moving to a new host, ask them to set up a staging area where you can upload your site and test it without anyone seeing it. Load a few pages, click links, test forms, check that images appear, and verify that email forwarding works. This is where you catch problems before they affect real visitors.

If you're changing your domain name, register the new domain before you migrate. If you're moving to a new platform, build and test the new site on the new platform first, then migrate content over. Don't try to build and migrate at the same time.

The actual migration process

The steps depend on what type of migration you're doing, but the general order is the same: prepare, copy, test, switch, monitor.

For a host migration: Upload your website files to the new host using FTP, File Manager, or your host's migration tool. Export your database from the old host and import it into the new one. Update your domain's DNS records (the instructions that tell the internet where your site lives) to point to the new host. Most hosting companies provide these DNS addresses when you sign up. You update them at your domain registrar—the company where you bought your domain name, like GoDaddy or Namecheap. This step is what actually switches your site over, and it can take anywhere from a few minutes to 48 hours for the change to spread across the internet.

For a platform migration: Build your new site on the new platform. Export content from your old site (pages, posts, images, metadata). Import that content into the new platform, then manually rebuild anything that doesn't transfer cleanly—templates, custom layouts, integrations with other tools. Test thoroughly. Once everything works, update your DNS records to point to the new platform, or update your hosting to serve the new platform's files.

For a domain migration: Set up your new domain on your hosting. Copy your site files and database to the new domain. Test it thoroughly. Then update your DNS records so the new domain is live. Set up redirects on the old domain so that anyone who visits the old address is automatically sent to the new one. This redirect is crucial for search engines and for people who have bookmarked your old site.

Telling search engines about the move

If you're changing your domain name or moving to a new platform with a different URL structure, search engines need to know. Otherwise, they'll keep showing the old address in search results, and visitors will land on error pages.

Use Google Search Console (a free tool from Google) to tell Google about the move. You add your new site to Search Console, then use the "Address Change" tool to specify that your old domain has moved to the new one. Google uses this information to update its index and transfer your search ranking from the old address to the new one. Do the same with Bing Webmaster Tools if you want Bing to know about the change.

Set up 301 redirects on your old domain—these are permanent forwarding rules that send visitors and search engines from the old address to the new one. If you're moving from example.com/about to newexample.com/about, set up a redirect so that anyone who visits the old URL automatically goes to the new one. Search engines follow these redirects and update their records accordingly.

This process can take weeks or months. Search engines don't when ready transfer all your ranking and traffic to the new address. During the transition, you may see a temporary drop in search visibility. This is normal and usually recovers if you've set up redirects and notified search engines correctly.

Common problems and how to prevent them

Broken links are the most frequent issue. When you move to a new platform or restructure your site, old page addresses change. Links from other websites, bookmarks, and search results all point to the old addresses and land on error pages. Prevention: map out your old URLs and new URLs before migration, set up redirects for every page that changes, and test links throughout your site after the migration is complete.

Email forwarding stops working. If your domain's email settings aren't transferred correctly, messages sent to you@yourdomain.com bounce or disappear. Prevention: before you migrate, document your email settings (MX records, forwarding addresses, any email accounts). After migration, test by sending yourself an email and checking that it arrives. Do this before you tell people the migration is complete.

The site is slow on the new host. Sometimes a new host has different performance characteristics, or your site's database needs optimization for the new environment. Prevention: test performance on the new host before going live. If it's slow, ask your new host's support team to help optimize, or consider whether you need to upgrade to a faster plan.

Search engines index both the old and new sites as duplicates. If redirects aren't set up correctly, search engines may see your old and new sites as two separate websites with identical content, which can hurt your search ranking. Prevention: set up 301 redirects when ready, use Google Search Console to notify Google of the move, and monitor your search results for a few weeks to make sure the old URLs are being replaced by the new ones.

How long migration takes and what to expect during downtime

The timeline depends on the size of your site and the type of migration. A small site with a few pages might migrate in an hour. A large site with thousands of pages, a complex database, and custom code might take days or weeks of preparation, testing, and monitoring.

Most migrations involve some downtime—a period when your site is unreachable or showing an error page. For a host migration, this is usually just a few minutes to a few hours, the time it takes for DNS changes to propagate. For a platform migration, downtime can be longer if you're rebuilding the site on the new platform before switching over. For a domain migration, you can minimize downtime by setting up the new domain, testing it thoroughly, and then switching DNS over quickly.

To reduce the impact, migrate during a time when your site gets the least traffic—late evening or early morning, or a weekend if your audience is primarily in one time zone. Notify your users in advance if you expect significant downtime. Post a message on your site, send an email, or put up a notice on social media letting people know when the migration will happen and when the site will be back.

Frequently Asked Questions

Do I have to take my site down to migrate it?

Not always. For a host migration, you can set up the new host, copy your files there, test everything, and then switch your DNS over—the whole process might take only a few minutes of actual downtime. For a platform migration, you can build the new site on the new platform while your old site stays live, then switch over once everything is ready. The key is testing on the new environment before you switch your domain over.

What if I migrate and my site disappears from Google search results?

This usually means your redirects aren't set up, or you didn't notify Google about the move. Add your new site to Google Search Console, use the Address Change tool to tell Google about the migration, and set up 301 redirects on your old domain. Google will re-index your new site and update its search results over the next few weeks. Check Search Console regularly to see the progress.

Can I migrate my site myself, or do I need to hire someone?

A straightforward host migration is something most people can do themselves if they're comfortable with FTP and databases. A platform migration or domain migration is more complex and involves more steps where things can go wrong. Many hosting companies offer migration services, and there are freelancers and agencies that specialize in migrations. If you're unsure, it's worth paying for help to avoid costly mistakes.

How do I know if my migration was successful?

Test your site on the new host by visiting it directly. Check that all pages load, links work, images appear, and forms submit. Test email forwarding by sending a message to your domain email address. Check your site's performance using tools like Google PageSpeed Insights. Monitor your search results for a few weeks to make sure your old URLs are being replaced by new ones. If you set up redirects, verify they're working by visiting an old URL and confirming you're redirected to the new one.

What should I do with my old hosting account after migration?

Keep it active for at least a few weeks after migration, long enough for DNS changes to fully propagate and for search engines to re-index your new site. Keep your redirects in place during this time. After a month or two, when you're confident the migration is complete and search engines have updated their records, you can cancel the old account. But keep your domain registered—don't let it expire, or someone else can buy it and your old links will point to their site.