Configure HTTP connection to a CDN resource

Last update: April 03 2026

You can configure which protocols users will use to connect to the CDN resource.

The HTTP/2 protocol is enabled by default - it speeds up content loading by compressing headers.

You can also:

• enable HTTP/3 connection For example, if your content is only available in the mobile app or if users have unstable internet;
• enable HTTPS only connection if you want to disable HTTP connection;
• redirect from HTTP to HTTPS;
• disable HTTP/2 connection in case of compatibility problems, for example, if the content source does not support HTTP/2.

You can use HTTP/2, HTTP/3, and HTTPS only connections at the same time. Content will be available over HTTPS, and the HTTP/2 and HTTP/3 versions of the HTTP protocol will be supported.

Enable HTTP/3 connection

1. In the Control Panel, on the top menu, click Products and select CDN.
2. In the CDN Resources section, open the CDN Resource page → Main tab.
3. Check the Use HTTP3 checkbox.
4. Click Apply. The resource will be in PROCESSING status while the settings are being applied . You cannot apply any other settings at this time. The settings will be applied when the share changes to ACTIVE status.

Enable HTTPS connection only

You cannot enable HTTPS-only connection and redirect from HTTP to HTTPS at the same time.

If you are using a personal domain, make sure it is accessible via HTTPS. If the domain is not accessible, check the TLS(SSL)-certificate of the CDN resource.

If this option is enabled, users who connect to the resource via HTTP will receive a 403 Forbidden access error and no content will be delivered to them.

1. In the Control Panel, on the top menu, click Products and select CDN.
2. In the CDN Resources section, open the CDN Resource page → Main tab.
3. Check the Use HTTPS only checkbox.
4. Click Apply. The resource will be in PROCESSING status while the settings are being applied . You cannot apply any other settings at this time. The settings will be applied when the share changes to ACTIVE status.

Redirect from HTTP to HTTPS

You cannot redirect from HTTP to HTTPS and enable HTTPS-only connectivity at the same time.

If you are using a personal domain, make sure it is accessible via HTTPS. If the domain is not accessible, check the TLS(SSL)-certificate of the CDN resource.

When redirecting, all HTTP requests will receive a 301 Moved Permanently response indicating the HTTPS address. The content will be delivered.

1. In the Control Panel, on the top menu, click Products and select CDN.
2. In the CDN Resources section, open the CDN Resource page → Main tab.
3. Check the Redirect to HTTPS checkbox.
4. Click Apply. The resource will be in PROCESSING status while the settings are being applied . You cannot apply any other settings at this time. The settings will be applied when the share changes to ACTIVE status.

Disable HTTP/2 connection

The use of the HTTP/2 protocol is enabled by default.

If you disable HTTP/2, the connection will be HTTP/1.1.

1. In the Control Panel, on the top menu, click Products and select CDN.
2. In the CDN Resources section, open the CDN Resource page → Main tab.
3. Uncheck the Use HTTP2 checkbox.
4. Click Apply. The resource will be in PROCESSING status while the settings are being applied . You cannot apply any other settings at this time. The settings will be applied when the share changes to ACTIVE status.