How to Change Primary Domain Name in cPanel & Web Hosting (2026 Step-by-Step Guide)

Whether you are rebranding your business, upgrading to a shorter .com or country-code domain extension, or fixing a typo made during registration, there comes a time when you need to change the primary domain name associated with your web hosting account.

Because your primary domain in cPanel is directly bound to your public_html document root, your email inboxes, SSL certificates, and database site URLs, changing it must be done carefully to prevent broken links, email delivery failures, or 404 errors.

In this 2026 step-by-step guide, you will learn the exact methods to change your primary hosting domain name smoothly without losing your files, databases, or SEO equity.

Method 1: Change Primary Domain via HeroHosty Client Area (Instant)

On HeroHosty, users can request an instant primary domain modification directly from their billing dashboard without needing to recreate their hosting account:

Method 2: Using cPanel Addon Domains (Alternative Multi-Site Approach)

If you are on HeroHosty’s Business or Premium shared plan (which supports multiple websites), you do not necessarily need to replace your primary domain. You can simply add your new domain as an Addon Domain:

Step 3: Update WordPress Site URL & Database (Post-Change)

If your website is built on WordPress, changing the server domain alone is not enough; WordPress hard-codes the site URL in its database. To prevent redirection loops or stylesheet breaking, update your database as follows:

Option A: Quick Temporary Fix in wp-config.php

Open cPanel File Manager, locate public_html/wp-config.php, click Edit, and add these two lines above “/* That’s all, stop editing! */”:

define( 'WP_HOME', 'https://newdomain.com' );
define( 'WP_SITEURL', 'https://newdomain.com' );

Option B: Permanent Database Update via phpMyAdmin

1. In cPanel, click on phpMyAdmin under Databases.
2. Select your website’s database, then click on the wp_options table.
3. Locate the siteurl and home rows (usually rows 1 and 2). Click Edit and replace olddomain.com with newdomain.com.

Step 4: Preserve SEO with a 301 Permanent Redirect

To avoid losing your existing Google rankings and backlinks from your old domain, set up a permanent 301 redirect. Add this code to the .htaccess file of your old domain:

RewriteEngine On
RewriteCond %{HTTP_HOST} ^(?:www\.)?olddomain\.com$ [NC]
RewriteRule ^(.*)$ https://newdomain.com/$1 [L,R=301]

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Frequently Asked Questions (FAQ) : Changing Domain on Hosting