Moving your website to a new host or platform yourself looks like a weekend project that saves a few hundred dollars. For plenty of small websites, that is a reasonable expectation. A migration tool copies the content, the new host provides instructions, and the work appears manageable.
The concern is what gets lost quietly. Your homepage might look fine while an older service page disappears from search, a contact form stops delivering messages, or business email starts bouncing. You might not notice until someone mentions it weeks later.
Before you start, it helps to understand what actually has to move, which website migration mistakes cause trouble, and how to catch them before they cost you inquiries or time.
What “migrating a website” actually involves
A migration is more than copying what visitors see, whether you handle it yourself or go through a website migration service. When you migrate a website to a new host, several connected pieces have to move or be reconfigured:
- Website files and database: Your images, themes, plugins, written content, settings, and stored information.
- DNS records: The instructions that connect your domain name to your website, email provider, and other services.
- SSL and HTTPS: The certificate and settings that let visitors connect securely.
- Email: Mailboxes and existing messages, if they live with the host you are leaving.
- Existing page URLs: The addresses people reach through search results, bookmarks, and links from other websites.
Changing platforms can also require rebuilding features that do not transfer directly. A mistake in any one of these areas can break something even when the rest of the move goes perfectly.
The most common mistakes when you migrate it yourself
These mistakes are usually about not knowing a step exists until after you have skipped it. A migration tool can report a successful transfer without confirming that customers can still find your pages or send an inquiry.
Skipping the URL and redirect map
Every page that currently ranks or receives visitors has built that history at its existing address. Moving the content does not automatically tell search engines or returning visitors where it went.
A platform change might turn /services/bookkeeping/ into /bookkeeping/. Smaller differences, such as a missing trailing slash, can also create a different address that needs consistent handling. Without a redirect, someone following the old link may reach a missing-page error.
A redirect map records each old address alongside its intended destination. Permanent redirects then send visitors and search engines to the corresponding new page. Google’s migration guidance specifically includes preparing this mapping before the move.
If your addresses stay exactly the same, you do not need redirects simply because you changed hosts. You still need the inventory to verify that those addresses work afterward.
Letting DNS and email go down during the switch
DNS is the system that points your domain name at the right server. Changing it is how you tell the internet where your website now lives.
Those changes take time to spread because different networks retain existing instructions for different periods. Some visitors may reach the new host while others still reach the old one. Turning off the old hosting too early can leave those visitors with an unavailable website.
Email needs separate attention. Changing nameservers without carrying over the records that direct incoming mail can interrupt delivery, even if your website works. Moving website files also does not move mailboxes or saved messages.
An unplanned switch can cause interruptions lasting minutes, hours, or a day or more. Keep the old services available during the transition and confirm exactly where email is hosted before changing anything.
Missing SSL and mixed-content errors after the move
Your SSL certificate enables the secure HTTPS connection browsers identify through their security controls, traditionally a padlock icon. The new host may need to issue or configure a certificate before the domain works securely there.
A certificate problem can produce a browser warning before visitors reach your content. Having a valid certificate, however, does not mean every page is clean.
An HTTPS page may still try to load images, scripts, or styling through old HTTP addresses. This creates mixed content. Browsers may upgrade some requests or block resources, leaving missing images or broken features. MDN documents this behavior and recommends checking for mixed-content warnings.
Check ordinary links to old HTTP addresses too. They are not necessarily mixed content themselves, but they can still send visitors to an insecure or outdated destination.
Going live with no staging environment to test first
A staging environment is a private copy of the new website where you check everything before real visitors arrive. It should be protected from public access and kept out of search results.
This is where you test page layouts, menus, plugins, and forms. Submit an inquiry and confirm that the message reaches the intended inbox. A success message on the screen does not prove delivery.
Look at the website on a phone as well as a computer, and check pages beyond the homepage. Different hosting settings can affect features that worked before.
Migrating directly onto the live domain makes customers the first people to discover those problems. Staging gives you time to fix them while the existing website remains available.
Why these mistakes aren’t obvious until afterward
A migration can feel successful because the first thing you check is the homepage. It loads, the logo appears, and the navigation opens. That confirms only a small part of the work.
A missing redirect may be obvious when you test the old address, but invisible if you only browse through the new menu. Its business impact might emerge as declining search traffic over the following weeks. A broken form can remain unnoticed until someone tries to reach you and gives up.
Your own browser can also show a cached copy, making the website appear available when another visitor has a different experience.
“The website loaded” is not the same as “the migration worked.” Verification means checking the paths customers actually use, including old links, mobile navigation, form delivery, and business email.
A migration checklist that actually protects your website
Use this before changing the domain settings. Keep a separate backup of the files and database, and know how you would restore the previous setup if the move fails.
- Inventory every existing URL: Save a list of public page addresses before touching anything, including blog posts, landing pages, and linked downloads. Use your sitemap, analytics, and Google Search Console to help identify pages that receive visits.
- Build the redirect map: Match each old URL to its corresponding new address, recording which ones remain unchanged. Configure permanent redirects for changed addresses and test that they reach the intended page.
- Confirm DNS and email settings: Record the current settings and identify who hosts your mailboxes before pointing the domain anywhere. Preserve the email records and keep the old hosting available while the change spreads.
- Test the staging copy: Check layouts, menus, plugins, and important customer actions on a phone and computer. Submit every inquiry form and confirm actual receipt, then remove staging-only restrictions when launching the public website.
- Check immediately after launch: Verify HTTPS, look for mixed-content warnings, test old URLs, and check for broken links. Repeat form and email tests on the live domain, then monitor search traffic and missing-page reports afterward.
Common Questions
How long does a website migration take?
For a small website, transferring the files and database can often be done in a few hours. Preparation, testing, and fixing anything that does not transfer correctly add to that time.
DNS changes can take up to 24 to 48 hours to spread fully, although many take effect sooner. Cloudflare’s migration guidance allows for propagation taking up to 48 hours. A careful migration plans around that window and keeps services available instead of expecting an instant switch.
Can I migrate my website myself without losing rankings?
Yes, it is possible. If you are asking, “Can I migrate my website myself?”, start by listing the existing URLs and mapping any changes before the move begins.
That planning is essential when addresses change, although it cannot guarantee unchanged rankings. Search engines also need access to the new pages, and content and technical settings matter. The avoidable risk comes from moving first and discovering missing addresses afterward.
What’s the difference between migrating a website and redesigning one?
A migration moves an existing website to a new host or platform without necessarily changing its appearance. A redesign changes the website’s design and structure, sometimes while keeping the same hosting.
They are often confused because they can happen together, and both can involve changed URLs and redirects. They are separate projects with separate plans, even when you choose to complete them together. If you’re redesigning rather than migrating and want the same kind of ranking-protection walkthrough, see how to redesign your website without losing your SEO rankings.
Make the plan before you make the move
A DIY migration can be a sensible way to save money when the website is straightforward and you have time to prepare and test it. The risk comes from treating it as a file transfer while overlooking the addresses, email settings, and customer actions connected to those files.
AJT Digital Designs’ website migration service is built around mapping every existing URL and testing on staging before anything goes live, for business owners who would rather have someone accountable for the move.
Get in touch to talk through your specific migration.
