HTTPS encrypts the connection between your website and its visitors. Browsers label HTTP sites as “Not secure”, which discourages visitors, especially on pages with forms. HTTPS is also a lightweight ranking signal and is required for many modern browser features. If your WordPress site still runs on HTTP, moving to HTTPS should be a priority.
This guide explains how to switch your WordPress site to HTTPS safely, avoid mixed content warnings and protect your search traffic during the move.
What Is SSL/TLS?
SSL (now technically TLS) certificates enable encrypted HTTPS connections. When a site uses HTTPS, browsers show a padlock icon, and data such as login details and form submissions are protected from interception.
Benefits of HTTPS
| — | — |
|---|---|
| Trust | Avoids “Not secure” browser warnings |
Step 1: Get an SSL Certificate
Most hosts provide free SSL certificates, often through Let’s Encrypt, which renew automatically. Activate SSL for your domain in the hosting control panel. Paid certificates are also available but are not necessary for most sites.
Step 2: Back Up Your Website
Take a full backup of files and database before making changes so you can restore if something goes wrong.
Step 3: Update WordPress URLs
Go to Settings → General and change both the WordPress Address (URL) and Site Address (URL) from http:// to https://. You will be logged out and need to log in again.
Step 4: Replace Old HTTP Links
Your posts, pages and settings may contain hard-coded http:// links to images and internal pages. Use a reputable search-and-replace tool or plugin to replace http://yourdomain.com with https://yourdomain.com in the database. Back up first and run a dry run if available.
Step 5: Fix Mixed Content
Mixed content occurs when an HTTPS page loads resources such as images, scripts or stylesheets over HTTP. Browsers may block these resources or show warnings.
| — | — |
|---|---|
| Theme settings | Logo, background images, custom CSS |
| Plugins | Hard-coded resource URLs |
| External scripts | Use HTTPS versions of third-party resources |
Use your browser’s developer console to find mixed content warnings on key pages.
Step 6: Set Up 301 Redirects
Redirect all HTTP URLs to their HTTPS equivalents with permanent 301 redirects. Many hosts offer a “Force HTTPS” option. Alternatively, server configuration rules or a plugin can handle this. Make sure redirects go directly to the final URL without chains.
Step 7: Update Search Console and Analytics
- Add the HTTPS property in Google Search Console if you use URL-prefix properties (domain properties cover both automatically)
- Submit your HTTPS sitemap
- Update the default URL in analytics settings
- Check that tracking still works
Step 8: Update External Links and Profiles
Update your website URL on social media profiles, business listings, email signatures and important backlinks where possible. Redirects will handle old links, but direct HTTPS links are cleaner.
Step 9: Consider HSTS
HTTP Strict Transport Security (HSTS) tells browsers to always use HTTPS for your domain. Enable it only after confirming HTTPS works perfectly, because mistakes can make the site temporarily inaccessible.
Step 10: Monitor After the Move
Watch Search Console for crawl errors and indexing changes, check analytics traffic, test forms and checkout pages and scan for remaining mixed content. A small temporary fluctuation in rankings can occur, but traffic usually stabilises quickly with proper redirects.
HTTPS Migration Checklist
| — | — |
|---|---|
| SSL certificate active | ✔ |
| Full backup taken | ✔ |
| WordPress URLs updated | ✔ |
| Database links replaced | ✔ |
| Mixed content fixed | ✔ |
| 301 redirects active | ✔ |
| Sitemap and Search Console updated | ✔ |
| Analytics updated | ✔ |
| Forms and checkout tested | ✔ |
Common Mistakes
- Forgetting redirects, leaving both versions accessible
- Using 302 instead of 301 redirects
- Ignoring mixed content warnings
- Leaving canonical tags pointing to HTTP
- Enabling HSTS before fixing issues
Real-World Example
A local business website switched to HTTPS by only enabling SSL in the hosting panel. Pages loaded on HTTPS, but images appeared broken and browsers still showed warnings. The owner updated the WordPress URLs, ran a database search-and-replace, fixed theme logo URLs and enabled forced HTTPS redirects. The padlock appeared on every page, and Search Console showed the HTTPS pages indexed within a few weeks.
Frequently Asked Questions
Is SSL free?
Many hosts provide free SSL certificates that are suitable for most websites.
Will switching to HTTPS hurt SEO?
Not when done correctly with 301 redirects. Temporary fluctuations may occur but usually settle quickly.
What is mixed content?
When an HTTPS page loads some resources over HTTP, causing browser warnings or blocked content.
Do I need a paid certificate?
Most blogs and small businesses do not. Paid certificates may offer extra validation or warranties.
How long does the migration take?
For small sites, often less than an hour. Larger sites may need more time for testing.
What if my site breaks after switching?
Restore from backup or revert the URLs, then troubleshoot mixed content and redirect settings.
Conclusion
Moving WordPress to HTTPS protects visitors, builds trust and supports SEO. Install SSL, update URLs, replace old links, fix mixed content, set permanent redirects and update your tools. With careful steps and monitoring, you can secure your site without losing traffic.
