How to Enable HTTPS on WordPress With a Free SSL Certificate

Last updated: November 6, 2026 · By Ryan Walsh

HTTPS and SSL protect the connection between your WordPress site and its visitors, and you can enable them for free. HTTPS (Hypertext Transfer Protocol Secure) is the normal web protocol with encryption added. SSL (Secure Sockets Layer) is the older name for the technology that sets up that encryption; modern sites use its successor, TLS (Transport Layer Security), but the term "SSL certificate" remains the everyday name. To turn on HTTPS, you get a certificate, install it, switch your WordPress addresses to https://, redirect old HTTP URLs, and fix mixed content.

This guide is written for beginners. It explains what SSL certificates do, how to choose a free one, the exact steps to install it, and how to avoid the broken links and browser warnings that often follow a switch. It also covers troubleshooting and ongoing maintenance.

Key Takeaways

• HTTPS encrypts data between your WordPress site and your visitors, and the CISA says it remedies the risks of unencrypted HTTP.
• CISA recommends pairing HTTPS with HSTS, a setting that tells browsers to always use an https:// connection to your site.
• Many hosts and free certificate authorities, including Let's Encrypt and ZeroSSL, offer SSL certificates at no cost for standard domain validation.
• WordPress has two URL settings, WordPress Address and Site Address, and both must start with https:// after the switch.
• After enabling HTTPS, you should redirect every http:// URL with a 301 redirect and fix any mixed content so the padlock appears on every page.

Why HTTPS Matters for Your WordPress Site

HTTPS matters because it stops anyone between your visitor and your server from reading or changing the data you exchange. Without it, login details, contact form entries, and checkout information travel as readable text. The CISA states that HTTPS remedies the risks of unencrypted HTTP, which is why it is the baseline recommendation for any site that accepts information from visitors.

The benefits go beyond encryption. Browsers label HTTP sites as not secure, which can make visitors hesitate before they fill out a form or buy a product. Google has long treated HTTPS as a ranking signal, although it is a light one, so it should not be your only reason to switch. For most beginners, the strongest reasons are visitor trust and basic data protection.

What Is an SSL Certificate?

An SSL certificate is a digital file that proves your site's identity and enables encryption for its connections. It is issued by a certificate authority (CA), a trusted organization that verifies you control the domain before issuing the certificate. Once installed, the certificate lets browsers and your server agree on encryption keys and set up a secure connection.

Encryption is the core function. The CISA explains that encryption scrambles sensitive information into unreadable code so that only authorized users can access it. Your certificate makes that scrambling possible for every visitor who loads your pages over HTTPS.

Types of SSL Certificates

Most WordPress beginners need a domain validation certificate, which is the most common type and is often free. The table below compares the main types so you can see which one fits your site.

Wildcard, multi-domain, and EV certificates are optional for most beginners. If you run a single WordPress site with no unusual needs, a free DV certificate provides the same encryption as a paid one for everyday visitors.

How to Choose a Free SSL Certificate Provider

The best free SSL certificate provider is usually the one your host supports with automatic installation and renewal. Start by checking your hosting control panel, because many hosts include a free certificate and install it for you. If your host does not offer one, a free certificate authority such as Let's Encrypt or ZeroSSL can issue one that you install yourself.

When comparing options, look for these factors:

• Automatic renewal: Free certificates are short-lived, so automated renewal prevents your site from showing an expired-certificate error.
• Installation method: Some hosts install certificates in one click, while manual installs require a Certificate Signing Request (CSR) and file uploads.
• Domain coverage: Confirm the certificate covers both your root domain and the www version if you use both.
• Support: Check whether your host or the provider offers help if validation fails.
• Compatibility: Make sure your hosting plan allows SSL installation and that your server supports modern encryption.

How to Prepare Your WordPress Site for HTTPS

Preparation prevents most migration problems, so do it before you install anything. Back up your files and database, check that your plugins and theme support HTTPS, and note any settings that use hardcoded http:// links. A recent backup gives you a way back if something breaks.

Use this checklist before you begin:

• Create a full backup of your files and database. The guide to WordPress backup plugins explains how to set up automated backups.
• Confirm your WordPress version, theme, and plugins are up to date.
• Check that your security and caching plugins do not block HTTPS.
• Write down your current URL structure so you can compare it after the switch.
• Ask your host whether it has specific HTTPS settings or requirements.

How to Install a Free SSL Certificate

You install a free SSL certificate through your hosting control panel, usually in a section labeled SSL/TLS, Security, or Let's Encrypt. Many hosts automate the process, so you may only need to click one button. The steps below cover the general process for most cPanel-based hosts.

1. Log in to your hosting control panel and open the SSL or Let's Encrypt section.
2. Select the domain you want to secure. Include both example.com and www.example.com if your site uses both.
3. Choose the free option, or generate a Certificate Signing Request (CSR) if you are installing a certificate manually.
4. Submit the request and wait for the certificate to be issued. Most free certificates are issued within minutes.
5. Install or activate the certificate for your domain. Automated installs complete this step for you.
6. Open your site with https:// in a browser and confirm the padlock appears without a warning.

If your host does not offer a free certificate, you can use a certificate authority directly, but the steps are more involved. For most beginners, the host-provided option is the fastest route to a working certificate.

How to Configure WordPress Settings for HTTPS

You configure WordPress for HTTPS by changing its two address settings and forcing secure connections. Once the certificate is active, these changes tell WordPress to generate secure links for every page and file it creates.

1. In your WordPress dashboard, go to Settings > General.
2. Change WordPress Address (URL) and Site Address (URL) so both begin with https://.
3. Save your changes. You may be logged out and need to log in again on the HTTPS version.
4. Force HTTPS for all visitors. You can use a plugin for this, or add redirect rules to your .htaccess file if you are comfortable editing server files.
5. Test the site in at least two browsers to confirm pages load over HTTPS without warnings.

Some sites set these addresses in the wp-config.php file instead of the dashboard. If you can't access the dashboard after the change, that file is where to check. Keep a copy of the original file before editing it.

A content delivery network (CDN) can also support HTTPS. Many CDNs provide SSL at the edge and can add protections such as DDoS filtering, but you must configure the CDN to use HTTPS for your origin as well.

How to Redirect HTTP to HTTPS Automatically

A 301 redirect sends visitors and search engines from an old HTTP URL to its HTTPS version. A 301 is a permanent redirect, and it tells search engines to transfer the old page's ranking signals to the new address. Without these redirects, visitors who type or bookmark the old address may land on a dead or duplicate page.

You can set up redirects in three common ways:

• A plugin: Many SSL and security plugins include a force-HTTPS option that sets up the redirect for you. This is the simplest method for beginners.
• The .htaccess file: On Apache servers, a rewrite rule in .htaccess can redirect all HTTP requests to HTTPS. Edit this file carefully, because a typo can take your site offline.
• Your hosting panel: Some hosts include a one-click HTTPS redirect setting in their control panel.

After setting up redirects, test a few old URLs to confirm they reach the HTTPS version in a single step. Redirect chains, where one URL redirects to another that redirects again, slow pages and can hurt crawling. The guide to optimizing WordPress permalinks covers how to keep your URL structure clean during the move.

How to Update Internal Links and Resources

You update internal links by making sure every link on your site points to the HTTPS version of its target. Old http:// links still work because of your redirects, but they add an extra step for visitors and can cause mixed content warnings. Fixing them is also good housekeeping for your site's link structure.

Start with the content that matters most. Update links in your navigation menus, footer, sidebar widgets, and top-performing posts. A search and replace tool can handle many links at once, but always back up your database before running one, and check the results on the front end.

How to Find and Fix Mixed Content

Mixed content is a page loaded over HTTPS that also requests some resources, such as images, scripts, or stylesheets, over HTTP. Browsers may block these resources or show a warning icon instead of a padlock. Mixed content can also weaken the security that HTTPS is supposed to provide.

To find and fix it, follow these steps:

1. Open a page in your browser and check the developer console for mixed content warnings.
2. Use a browser extension or a WordPress plugin that scans for insecure resource links.
3. Update hardcoded http:// links in your theme files, custom code, and page builder blocks.
4. Check plugins that load external scripts or fonts and update their settings if they use HTTP.
5. Review your CDN settings so that assets are served over HTTPS.
6. Clear your cache, then test the page again.

How to Test Your HTTPS Setup

You test your HTTPS setup by checking that your certificate is valid, your redirects work, and your pages load without warnings. Testing takes less time than troubleshooting a problem after visitors have already seen one.

Run through this checklist after your changes:

• Load the homepage, a blog post, a page, and a category archive using https://.
• Confirm the browser shows a padlock and that the certificate is issued to your domain.
• Visit the http:// version of your homepage and confirm it redirects to HTTPS in one step.
• Check that the contact form, login page, and any checkout pages load securely.
• Confirm there are no mixed content warnings in the developer console.
• Review Google Search Console for any indexing or HTTPS-related errors after a few days.

Troubleshooting Common SSL Issues on WordPress

Most SSL problems on WordPress come from certificate installation errors, mixed content, or caching. A certificate that is not installed correctly will produce browser errors, and a cached page can show old HTTP links after you have fixed them. Work through the causes in order rather than changing several settings at once.

• Certificate error: Confirm the certificate covers your exact domain, including www if you use it, and that it has not expired.
• Mixed content warning: Use the console to find the HTTP resource and update its link.
• Redirect loop: This often happens when a plugin forces HTTPS and your server also redirects, or when a CDN and host both redirect. Keep one redirect method active.
• Old pages still load over HTTP: Clear your site cache, browser cache, and CDN cache.
• Login problems after the change: Check your Site Address and WordPress Address settings in wp-config.php.

If problems persist after these steps, the guide to common WordPress errors for beginners walks through other frequent causes, such as plugin conflicts and theme issues.

How to Maintain Your SSL Certificate

You maintain your SSL certificate by confirming it renews on time and keeping your site software current. Expired certificates trigger full-page browser warnings that send visitors away, so renewal is the most important ongoing task.

1. Confirm that automatic renewal is turned on in your host or certificate provider's dashboard.
2. Set a calendar reminder a few weeks before the expiration date to check that renewal succeeded.
3. Keep WordPress core, themes, and plugins updated to avoid conflicts with your certificate setup.
4. Monitor your site for security issues. The guide to WordPress security practices for 2026 lists routine steps that complement HTTPS.

Enabling HTTPS does not protect your site from every threat. Strong passwords, limited user permissions, and regular backups still matter. If your site is ever compromised, the steps in what to do if your WordPress site gets hacked explain how to respond.

Frequently Asked Questions

Is a free SSL certificate as secure as a paid one?

For most WordPress sites, a free domain validation certificate provides the same encryption as a paid one. The main difference is the level of identity verification, which matters most for large organizations and e-commerce brands that want extra identity details shown to visitors. Free certificates also tend to require more frequent renewal, so automation is important.

How long does it take to enable HTTPS on WordPress?

If your host offers a one-click free certificate, you can usually enable HTTPS in under an hour, including the WordPress settings changes. Manual installations and sites with many old links or hardcoded resources take longer. Allow extra time for testing and for search engines to recrawl your pages.

Will switching to HTTPS hurt my SEO?

A correct switch should not hurt your SEO. The main risk comes from broken redirects, redirect chains, or pages that still link to HTTP versions. Use 301 redirects for every old URL, update internal links, and check Google Search Console after the change.

Why does my site show "Not secure" after I installed the certificate?

This usually means mixed content, where some resources still load over HTTP. Open your browser's developer console to find the insecure resources, then update those links in your theme, plugins, or media library. Clearing your cache after the fix will also help the warning disappear.

Do I need HTTPS if my website does not sell anything?

Yes, HTTPS is useful even for a site with no store. Login forms, contact forms, and comments all send information from visitors, and HTTPS protects that data. Free certificates make the cost of enabling it effectively zero.

Can I use HTTPS with and without www?

Yes, but you should choose one canonical version and redirect the other to it. Make sure your certificate covers both the www and non-www versions of your domain if you want both to load securely. Consistent URLs make your site easier for visitors and search engines to understand.

Conclusion

Enabling HTTPS and SSL on WordPress is one of the most effective security steps you can take, and a free certificate makes it accessible to any beginner. Install your certificate, update your WordPress addresses, redirect old URLs, and fix mixed content. Then test your pages and keep renewal automated so your visitors always see the padlock.