You’ve decided to switch hosting providers, which should be straightforward. Copy files from old host to new host, update DNS, and you’re done. Except migrations rarely go that smoothly. Something always breaks. Email stops working. Images won’t load. Forms quit submitting. Or worse, your entire site displays database connection errors to everyone who visits.
The gap between migration in theory and migration in reality is where most website owners get burned. Understanding what actually happens during migrations and preparing for inevitable complications prevents disasters that turn simple moves into days of downtime and stress.
Pre-Migration Preparation
Create complete backups of everything before touching anything. This isn’t just downloading your website files. You need files, databases, email accounts, DNS settings documentation, and configuration files. If the migration goes catastrophically wrong, these backups let you restore to exactly where you started. Skip this step and you’re gambling with your entire online presence.
Document your current setup completely. Screenshot DNS settings including A records, MX records, CNAME records, and TTL values. Export your database and verify the export file isn’t corrupted. List all domains, subdomains, and email addresses. Write down WordPress admin login, database credentials, and FTP details. During migration chaos, this documentation prevents guessing what settings should be.
Timing Your Migration
Choose your slowest traffic period for migration. If analytics show you get minimal traffic between midnight and 6 AM Sunday, that’s your migration window. Never migrate during high-traffic periods or before major events. A failed migration during your Black Friday sale or product launch creates preventable disasters.
Block out 4-6 hours for migration even if you expect it to take one hour. Migrations always take longer than planned. Something unexpected always requires troubleshooting. Having time buffer prevents rushing and making mistakes under pressure. If migration completes quickly, great. If complications arise, you have time to fix them properly.
The Migration Process Step-By-Step
Set up hosting on your new provider but don’t point your domain there yet. Install WordPress or your platform fresh on new hosting if needed. This creates your migration destination without affecting your live site. Your old hosting continues serving visitors while you work on new hosting invisibly in the background.
Transfer files using FTP or file managers. Download files from old hosting to your computer, then upload to new hosting. This two-step process is safer than direct server-to-server transfers that can fail halfway through leaving incomplete copies. Verify file counts match between old and new hosting – missing files cause broken images and functionality.
Database Migration Complications
Export your database from old hosting using phpMyAdmin or similar tools. Download the SQL file to your computer. Import this file into your new hosting’s database. This sounds simple but databases are where most migrations fail. Large databases timeout during import, special characters break, or encoding mismatches corrupt data.
For WordPress sites, updating URLs in the database is critical. Your database contains your old domain in thousands of places. Use find-and-replace tools carefully, or better yet, use specialized migration plugins that handle URL updates automatically. Manually editing databases risks breaking serialized data that WordPress uses for settings and configurations.
Testing Before Going Live
Modify your computer’s hosts file to preview your site on new hosting before changing DNS. This lets you see exactly how the migrated site works using the actual domain name without affecting real visitors. You can test everything – forms, logins, e-commerce checkout, email – and fix problems before anyone else sees them.
Test thoroughly. Click every menu item. Submit contact forms. Try logging in. Test e-commerce purchases. Verify images load. Check that plugins work. Many issues only reveal themselves through actual interaction, not just loading the homepage. Fifteen minutes of testing prevents discovering problems after DNS changes when thousands of visitors encounter broken functionality.
Common Issues To Check
File permissions cause frequent problems on new servers. Images might not upload, plugins may fail to update, or cache directories won’t write. Check that file and folder permissions match what your platform requires – typically 644 for files and 755 for directories on WordPress. Incorrect permissions break functionality in ways that aren’t immediately obvious.
SSL certificates must be installed and configured on new hosting before switching DNS. If your site uses HTTPS (and it should), ensure the new host has a valid certificate covering your domain. Forgetting this means visitors get scary browser warnings about insecure connections the moment DNS switches over. Some hosts auto-install certificates, others require manual setup – verify which applies.
Switching DNS Settings
Lower your DNS TTL (Time To Live) to 300 seconds (5 minutes) 24-48 hours before migration. TTL determines how long DNS servers cache your settings. Lower TTL means DNS changes propagate faster. Once migration is complete and everything works, raise TTL back to normal. This prep step dramatically reduces the time your site exists in two places simultaneously.
Update DNS A records to point to your new hosting’s IP address. This change tells the internet your domain now lives at a different server. DNS propagation isn’t instant – it takes minutes to hours for the change to spread globally. During propagation, some visitors see the old server while others see the new one, which is why thorough pre-testing matters.
The Email Migration Challenge
Email requires special attention during migrations. MX records tell the internet where to deliver email for your domain. If you’re moving email to new hosting, update MX records. If keeping email on old hosting temporarily, don’t change MX records. Many migrations break email because people update all DNS records including MX when email should stay put.
Consider migrating email separately from websites. Move the website first, verify it works perfectly, then tackle email migration days or weeks later. This separation prevents dealing with website and email problems simultaneously. If something goes wrong, you’re troubleshooting one issue instead of multiple intertwined problems.
Post-Migration Verification
Monitor your site obsessively for 24-48 hours after DNS changes. Check error logs for warnings. Verify forms work. Confirm email sends and receives properly. Watch analytics for traffic drops suggesting problems. Test from different devices and browsers. Some issues only appear under specific conditions – mobile devices, specific browsers, or certain user actions.
Keep old hosting active for at least two weeks after successful migration. DNS propagation can take longer than expected, and some visitors or services might still use old DNS records. Maintaining old hosting during this transition period provides safety net. If catastrophic problems emerge on new hosting, you can revert DNS back to old hosting while troubleshooting.
Common Post-Migration Problems
Broken images often result from incorrect URLs in databases or missing files. If images display as broken links, check that file paths are correct and all image files transferred successfully. Sometimes images work on homepage but break on individual posts – this indicates database URL issues not caught during testing.
Email deliverability problems happen when new hosting has poor IP reputation. Emails you send might land in spam folders or get rejected entirely. This isn’t your fault, but it’s your problem. Monitor email delivery for weeks after migration. If problems persist, consider using dedicated email services like Google Workspace instead of hosting-provided email.
Using Migration Services
Many premium hosts offer free migration services where their team handles the entire process. You provide access to your old hosting, and they move everything. This convenience removes technical burden and responsibility. If migration goes wrong, it’s the host’s problem to fix, not yours.
Migration plugins like Duplicator or All-in-One WP Migration automate WordPress moves. They package your entire site into a file you download and import on new hosting. These tools handle database URL changes automatically and reduce human error. For WordPress sites, plugins are significantly easier than manual migrations and less error-prone.
When To Hire Professional Help
Complex sites with custom code, multiple integrations, or large databases benefit from professional migration services. Paying $150-300 for expert migration is cheap compared to days of downtime or permanent data loss from botched DIY attempts. If your site generates significant revenue, professional migration is insurance worth buying.
E-commerce sites in particular should use professional migration services. The complexity of preserving customer data, order history, and payment integrations makes mistakes costly. One corrupted database field could break checkout functionality, directly costing sales. The professional fee is trivial compared to lost revenue from migration problems.
The Rollback Plan
Before starting migration, document exactly how to revert DNS back to old hosting if everything fails. Write down old DNS settings, old hosting nameservers, and reverting steps. In crisis mode when nothing works, clear instructions prevent panic and additional mistakes. Knowing you can undo changes provides confidence to attempt migration.
Test rollback procedures during initial setup. After configuring new hosting but before changing DNS, practice reverting settings. This ensures rollback actually works if needed. Discovering rollback doesn’t work during actual emergencies compounds disasters rather than solving them.
Communicating Downtime
If migration requires planned downtime, notify users in advance. Add notices to your site days before migration explaining when service interruptions might occur. Update social media. Send emails to subscribers. Setting expectations prevents panic when people encounter temporary problems during migration windows.
During migration, consider putting up maintenance mode pages explaining work is in progress. This beats showing broken pages or error messages. Maintenance mode tells visitors the situation is temporary and intentional rather than leaving them wondering if your site is dead permanently.
Mistakes To Avoid
Never delete anything from old hosting until new hosting is 100% stable for weeks. The temptation to clean up and cancel old hosting immediately costs people their only backups when late-emerging problems require restoring old versions. Old hosting is your insurance policy – maintain it until you’re absolutely certain migration succeeded completely.
Don’t assume “it works on my computer” means migration succeeded. Test from multiple locations, devices, and networks. Some issues only appear for visitors far from your server, on mobile devices, or using specific browsers. Thorough testing from varied conditions reveals problems your single perspective misses.
The Incremental Approach
For complex sites, consider migrating in stages. Move a subdomain first as practice. Migrate staging site before production. This incremental approach builds confidence and reveals problems in low-stakes environments before risking your primary site. Each successful stage provides learning and refinement for the next migration.
Some sites can migrate sections separately. Move blog to new hosting first, keep main site on old hosting. Test blog thoroughly, then migrate main site. This reduces all-at-once risk and provides fallback if problems arise. Not all sites support this approach, but when possible, it’s safer than switching everything simultaneously.
Making Your Migration Decision
Migrations are disruptive but sometimes necessary. Terrible hosting that constantly fails, security breaches, or outgrowing current infrastructure justifies migration despite risks. But migrating just because another host advertises slightly better features often isn’t worth the disruption unless current hosting is actively problematic.
If you decide to migrate, prepare obsessively, test thoroughly, and give yourself time. Rush jobs cause mistakes. Proper preparation, detailed testing, and methodical execution prevent most problems. The migration might still have complications, but preparation makes them manageable issues rather than catastrophic failures that destroy your online presence.