The following script gets added in the footer.
<script type="text/javascript">window.NREUM||(NREUM={});NREUM.info={"beacon":"beacon-4.newrelic.com","licenseKey":"07c6de90a5","applicationID":"2880104,2883430,2076767","transactionName":"ZFxQYhBUWkVTUkQKX10Wc1UWXFtYHUJZDVdfXA==","queueTime":0,"applicationTime":80,"ttGuid":"","agentToken":"","userAttributes":"","errorBeacon":"jserror.newrelic.com","agent":"js-agent.newrelic.com/nr-361.min.js"}</script>
I have disabled all plugins but its still there.
Its not present in footer.php, How to find out what’s adding this code to the html source.
As the URL in the code clearly says, this is code for the New Relic performance monitor. It gets inserted automatically by a PHP/Apache module as long as it’s active on your server.