It is not necessary to specify window
before the navigator.userAgent
object. Either window.navigator.userAgent
or navigator.userAgent
will produce the same result.
JavaScript Example
<script>// <![CDATA[ document.write(navigator.userAgent); // ]]></script>
PHP Example
<?php echo $_SERVER['HTTP_USER_AGENT']; ?>
CCBot/2.0 (https://commoncrawl.org/faq/)