Why Is WordPress Site Migration Risky?
The most common problems that occur when migrating a WordPress site:
| Problem | Cause |
|---|---|
| Site not loading | wp-config error |
| Broken images | URL change |
| Database error | DB import issue |
| SEO drop | Downtime |
| SSL error | HTTPS redirect |
In particular, 1 hour of downtime on an e-commerce site can cause significant revenue loss.
Zero Downtime Migration Logic
Zero downtime migration works as follows:
- The site is copied from the old server
- It is made operational on the new server
- It is tested using the hosts file
- DNS is updated
- The old server remains live for 48 hours
DNS propagation usually takes 2–24 hours.
Pre-Migration Checklist
| Task | Why |
|---|---|
| Full backup | Prevent data loss |
| PHP version check | Compatibility |
| Disk space check | Space for migration |
| DNS access | Domain redirect |
| Disable cache | Old cache issues |
Manual WordPress Migration (Step by Step)
1. Take a Full Backup
Files to back up:
- public_html
- wp-content
- wp-config.php
- .htaccess
- Database (SQL)
2. Transfer Files to the New Server
If SSH is available:
rsync -avz /public_html/ user@new-server:/public_html/Using SSH is much faster than FTP.
3. Import the Database
phpMyAdmin → Import → Upload SQL
4. Edit wp-config.php
define('DB_NAME', 'db_name');
define('DB_USER', 'db_user');
define('DB_PASSWORD', 'db_pass');
define('DB_HOST', 'localhost');5. URL Search & Replace
UPDATE wp_options SET option_value = 'https://site.com' WHERE option_name = 'home';
UPDATE wp_options SET option_value = 'https://site.com' WHERE option_name = 'siteurl';6. Test with Hosts File (Critical Step)
NEW_SERVER_IP site.com
NEW_SERVER_IP www.site.comTest:
- Does the site load
- Does the admin panel work
- Do images load
- Do forms work
- Does the cart work
DNS Change
| Setting | Value |
|---|---|
| TTL | 300 |
| A Record | New IP |
| Nameserver | New hosting |
DNS propagation time:
- Minimum: 5 minutes
- Average: 2–6 hours
- Maximum: 24 hours
The old hosting must remain live for at least 48 hours.
Benchmark – Migration Time by Site Size
| Site Size | FTP | SSH |
|---|---|---|
| 500 MB | 30 min | 5 min |
| 1 GB | 60 min | 10 min |
| 5 GB | 3 hours | 30 min |
| 10 GB | 5 hours | 1 hour |
| 20 GB | 10 hours | 2 hours |
Plugin vs Manual vs Managed Migration
| Method | Ease | Risk | Large Site | Performance |
|---|---|---|---|---|
| Plugin | Very easy | Medium | Weak | Medium |
| Manual | Medium | Low | Very good | High |
| Managed | Very easy | Very low | Very good | Very high |
Popular plugins:
- Duplicator
- All-in-One WP Migration
- Migrate Guru
Managed Migration (Let the Hosting Company Do It)
Some hosting companies offer free migration.
This is the safest method for large and critical sites.
Downtime and SEO Impact
| Downtime | SEO Impact |
|---|---|
| 5 min | No impact |
| 30 min | Minor |
| 2 hours | Rankings may drop |
| 24 hours | Serious drop |
Most Common Mistakes
| Mistake | Consequence |
|---|---|
| No backup | Data loss |
| Wrong wp-config | Site won't load |
| Not replacing URLs | Broken images |
| Skipping hosts file test | Live site errors |
| Shutting down old hosting | Data loss |
Safest Migration Order
- Take backup
- Transfer files
- Import database
- Edit wp-config
- Replace URLs
- Test with hosts file
- Change DNS
- Do not shut down old hosting for 48 hours
Conclusion
| Scenario | Recommended Method |
|---|---|
| Small site | Plugin |
| Medium site | Manual |
| Large site | SSH |
| Critical site | Managed migration |
Summary:
- If you have technical knowledge → Manual
- Large site → SSH
- Risk-free → Managed
CTA
If you want to migrate your WordPress site safely or change hosting, you can check out the guides below:
- /wordpress-hosting
- /site-tasima-hizmeti
- /vps-hosting
- /backup-rehberi
The right migration process completely eliminates the risk of data loss and SEO damage.