[Plugin: Google Analytics for WordPress] google Analytics 3.2.5 doesn’t validate with XHTML strict

The problem here is that the javascript code is not escaped in comments. You need to escape the javascript with ‘<!– … –>’.

Hotfix for this issue in V3.2.5

Open wp-content/plugins/google-analytics-for-wordpress/googleanalytics.php in a decent editor (not notepad.exe) and change those lines:

Line 54:
<script type="text/javascript" charset="utf-8"><!--

Line 72:
--></script>

Line 115:
echo "<script type=\"text/javascript\"><!-- setTimeout(function(){jQuery('#updatemessage').hide('slow');}, 3000); --></script>";

Line 345:
echo '<script type="text/javascript"><!--'."\n";

Line 348:
echo '--></script>'."\n";

Line 349:
echo '<script type="text/javascript"><!--'."\n";

Line 359:
echo '--></script>'."\n";

Line 363:
echo '--></script>'."\n";

Line 370:
echo '--></script>'."\n";

Line 372:
echo '<script type="text/javascript"><!--'."\n";

Line 402:
echo '--></script>'."\n";

Line 418:
echo '<script type="text/javascript"><!--'."\n";

Line 420:
echo '--></script>'."\n";