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The Supertab Connect WordPress plugin handles both RSL license serving and CAP enforcement without CDN configuration or custom code. It intercepts requests to /license.xml, fetches and caches your license from Supertab Connect, and validates Authorization: License tokens on automated requests.
  • Requirements: WordPress 6.4 or higher (self-hosted or WordPress VIP).
  • Plugin: Supertab Connect

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Before You Start

You need:
  • A Supertab Connect merchant account – contact sales to sign up
  • A Website registered in the dashboard — select WordPress as the integration type
  • Your Website URN — found in Website settings, looks like urn:stc:merchant:system:xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx

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Install the Plugin

In your WordPress admin, go to Plugins → Add Plugin, search for Supertab Connect, install, and activate. The plugin will redirect you to its settings page on first activation.

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Configure RSL

In Settings → Supertab Connect, paste your Website URN into the Website URN field and save. Once saved, visit https://yourdomain.com/license.xml to confirm your RSL license is being served.
If the license doesn’t reflect recent changes, your hosting stack may have a caching layer in front of WordPress. Purge the cache for /license.xml from your host’s control panel.

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Configure CAP

1

Generate a Merchant API key

In the Supertab Connect dashboard:
  1. Open your Website Details
  2. Go to the API Keys section
  3. Click Generate new key
  4. Copy the generated key
Treat the Merchant API key as a secret. Do not expose it in frontend code or share it outside the WordPress admin environment.
2

Enable CAP in the plugin

In WordPress, go to Settings → Supertab Connect:
  1. Find the License Verification section
  2. Paste the generated Merchant API key into the Merchant API key field
  3. Click the Enable CAP checkbox
  4. Click Save Changes
3

Configure Active Paths

By default, CAP protects your entire site using a single * wildcard path. You can narrow protection to specific sections of your site.
  1. In the Active Paths section, review the default path
  2. Optionally remove * and add specific path patterns
  3. Click Add Path to add additional patterns
  4. Click Save Changes
Path pattern examples:
Paths support * for wildcards. Both /sample-page and /sample-page/ (trailing slash) are treated as the same path.
4

Verify setup

After saving the plugin settings:
  1. Return to the Supertab Connect dashboard
  2. Use Verify Setup for CAP
  3. Confirm that verification succeeds
Once verification passes, CAP is active on your WordPress site.

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Update robots.txt

Add a License: directive to your robots.txt so crawlers can discover your license:
The URL must be fully qualified. Place it at the top of the file, before any User-agent: directives.

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Publishing New Versions

When you publish a new version of your RSL license, click Publish in the RSL Editor. Follow the on-screen steps to refresh the license on your WordPress site.
If you can’t see the latest version at /license.xml, your hosting environment may have additional caching layers. You may need to purge these from your host’s control panel.

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Troubleshooting

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Next Steps

Acquire Licenses

Test the protected flow by obtaining a license token and making a licensed request.

Crawler Authentication Protocol

How CAP works, what it enforces, and what it leaves to you.