Switching your site's backend

Every WHP site runs inside a container. The container type determines the web engine that serves your site’s files and runs your PHP code. Most sites use a standard PHP or PHP-FPM container, which handles the vast majority of WordPress and PHP workloads well. If you’ve enabled the Optimized Webserver add-on, you also have access to LiteSpeed/OpenLiteSpeed (OLS) container types — a premium engine known for its built-in full-page cache (LSCache) and lower memory usage under traffic.

Switching backends is a one-step change in the Sites editor, but it does briefly restart your container, so plan for a few seconds of downtime.

Before you start

• You need admin access to your WHP account.
• If you want to switch onto a LiteSpeed backend, your account must have the Optimized Webserver add-on enabled. If it isn’t, those container types won’t appear in the dropdown.
• About 2 minutes, plus a brief site restart.

Sign in to WHP

You can sign in to WHP two ways:

1. Through your client portal (recommended). Go to https://secure.anhonesthost.com, sign in to your account, open Services → My Services, click your hosting plan, then click Login to WHP. No extra password to remember.
2. Directly with your WHP credentials. Visit https://<your-server-hostname>:8443 and sign in with the WHP username and password you set up. Your server hostname is in your welcome email and on the service page in the client portal.

Steps

1. In the sidebar, click Sites.

2. Find the site you want to change and click Edit (the pencil icon next to it).

3. In the Edit Site form, locate the Container Type (or PHP Version / Backend) dropdown.

4. Select the backend you want:

   • PHP or PHP-FPM options — standard shared webserver tier, suitable for most WordPress and PHP sites.
   • LiteSpeed PHP options (e.g. LiteSpeed PHP 8.x) — premium OLS tier. These only appear if the Optimized Webserver add-on is active on your account.

5. Click Save. WHP recreates the container with the new engine. Expect a brief moment of downtime (typically a few seconds) while the container restarts.

Note

After switching backends, any server-side page cache starts cold. For LiteSpeed sites this means LSCache has nothing cached yet — your first few page loads will be slightly slower while the cache warms up. This is normal and resolves on its own within minutes.

Switching onto the premium LiteSpeed backend

The LiteSpeed/OpenLiteSpeed container types are part of the Optimized Webserver add-on. If you open the Container Type dropdown and don’t see any LiteSpeed options, the add-on isn’t enabled on your account yet.

To enable it:

1. Visit the Optimized Webserver add-on page for details and pricing.
2. Enable it from your client portal.
3. Once active, the LiteSpeed PHP options will appear in the Container Type dropdown when editing any site.

Before cancelling the Optimized Webserver add-on

Caution

You must move all of your sites off the LiteSpeed backend before you can cancel or disable the Optimized Webserver add-on. The system will block the cancellation and show an error listing every site that still needs to be moved.

To prepare for cancellation, switch each affected site back to a standard PHP or PHP-FPM container type:

1. In the sidebar, click Sites.

2. For each site currently on a LiteSpeed container type, click Edit.

3. Change the Container Type to a standard PHP or PHP-FPM option.

4. Click Save and wait for the container to restart before moving to the next site.

5. Repeat until no sites are on a LiteSpeed backend.

Once all sites are on standard backends, you can cancel or disable the add-on from your client portal without errors.

Troubleshooting

LiteSpeed options don’t appear in the dropdown. The Optimized Webserver add-on is not enabled on your account. See Optimized Webserver to add it.

Site doesn’t come back up after switching. Wait 30 seconds and reload — the container may still be starting. If the site is still down after a minute, contact support.

Cancelling the add-on shows an error listing sites. Switch each listed site to a standard PHP/PHP-FPM backend first (see the steps above), then retry the cancellation.

LiteSpeed cache not serving cached pages after the switch. This is expected — the cache starts empty after every container recreation. It warms up automatically as visitors load pages.

Related

• Create a site
• Optimized Webserver add-on
• Resource upgrades

Still stuck?

Still stuck? Open a support ticket and our team will help.