Analytics disabler

By ms609 — Last update Aug 25, 2007 — Installed 1,209 times.

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// ==UserScript==
// @name Analytics disabler
// @namespace http://codeword.blogspot.com
// @description You can't track me!! Should accelerate page loading times.
// @include *
// ==/UserScript==

var URL = ".google-analytics.com/urchin.js";
var TRACKER = "urchinTracker()";

var scripts = document.getElementsByTagName( "script" );

var refPresent = false, codePresent = false, log = false;

for ( var i = 0; i < scripts.length; ++i ) {
	var script = scripts[ i ];
	
	// Check reference if not already found
	if ( !refPresent ) {
		var ref = script.src;
		
		if ( ref != null ) {
			refPresent = ( ref.search( URL ) != -1 );
		
			if( log )
			GM_log( "Tested ref: " + ref + " Result: " + refPresent );
		}
	}
	
	// Check code if not already found
	if ( !codePresent ) {
		var code = script.innerHTML;
		
		if ( code != null ) {
			codePresent = ( code.search( TRACKER ) != -1 );
			
			if( log )
			GM_log( "Tested code: " + code + " Result: " + codePresent );
		}
	}
	
	if ( refPresent && codePresent ) {
		code = null;
		var logo = document.createElement("div");
		logo.id = "logo";
		logo.innerHTML = '<div style="position: absolute; left: 0px; top: 0px;' +
		'border-bottom: 1px solid #000000; margin-bottom: 5px; ' +
		'font-size: small; background-color: #000000; z-index: 100;' +
		'color: #ffffff; width:200px; opacity: .75;"><p style="margin: 2px 0 1px 0;"> ' +
		'<b>Google Analytics disabled</b>' +
		'</p></div>';
		
		document.body.insertBefore( logo, document.body.firstChild );
		
		window.setTimeout(
			function() {
				var logo = document.getElementById( "logo" );
				if ( logo ) {
					logo.parentNode.removeChild( logo );
				}
			}
		, 2500 );
		return;
	}
}