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Configuration API Reference

The AdUnblock Configuration API provides access to the latest JavaScript configuration files needed for ad blocker detection on your website.

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Base URL

http://config.adunblocker.com

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Authentication

This API endpoint is publicly accessible and does not require authentication.

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Caching

The API responses are cached for optimal performance and support standard HTTP caching headers for efficient client-side caching.

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Server Tag Configuration

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Get JavaScript Configuration

Retrieve the latest JavaScript files needed for ad blocker detection. 
curl -X GET http://config.adunblocker.com/server-tag.json

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Response

{
  "js": ["https://cdn.example.com/detection-script.js"]
}

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Response Fields

FieldTypeDescription
jsarrayArray of JavaScript file URLs for ad blocker detection

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Response Headers

HeaderDescription
Content-Typeapplication/json
ETagEntity tag for caching validation
Last-ModifiedTimestamp when the configuration was last updated

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Usage Example

Once you fetch the configuration, you can dynamically load the JavaScript files: 
// Fetch configuration
const config = await fetch(
  "http://config.adunblocker.com/server-tag.json"
).then((response) => response.json());

// Load the JavaScript files
config.js.forEach((scriptUrl) => {
  const script = document.createElement("script");
  script.src = scriptUrl;
  script.async = true;
  document.head.appendChild(script);
});

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Caching Recommendations

  • The API supports standard HTTP caching headers
  • Implement conditional requests using If-None-Match header with ETag
  • Cache responses locally for better performance
  • Check for updates periodically (e.g., every hour)
// Example with conditional request
const etag = localStorage.getItem("config-etag");
const headers = etag ? { "If-None-Match": etag } : {};

const response = await fetch("http://config.adunblocker.com/server-tag.json", {
  headers,
});

if (response.status === 304) {
  // Use cached configuration
  console.log("Configuration unchanged");
} else {
  // Update cache
  const config = await response.json();
  localStorage.setItem("config-etag", response.headers.get("ETag"));
  localStorage.setItem("config-data", JSON.stringify(config));
}

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Valid Script Sources (Deprecated)

This endpoint is deprecated and will be removed in a future version. Please use the /server-tag.json endpoint instead.

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Get Valid Script Sources

Retrieve a list of valid JavaScript source URLs for ad blocker detection. 
curl -X GET https://config.adunblocker.com/valid_script_sources.json

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Response

["https://cdn.example.com/detection-script.js"]

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Response Format

The response is a JSON array containing valid JavaScript source URLs as strings.

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Response Headers

HeaderDescription
Content-Typeapplication/json
ETagEntity tag for caching validation
Last-ModifiedTimestamp when the configuration was last updated

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Migration Guide

If you’re currently using this endpoint, migrate to the new /server-tag.json endpoint: 
// Old (deprecated)
const sources = await fetch(
  "https://config.adunblocker.com/valid_script_sources.json"
).then((response) => response.json());

// New (recommended)
const config = await fetch(
  "http://config.adunblocker.com/server-tag.json"
).then((response) => response.json());
const sources = config.js;