Testing bulk user agents to test your website against many bots on the internet by checking the status code.
Demo: http://semrun.com/assets/user_agent_tester/
Enter your website into the form located in index.php Press submit and results will be processed in test.php
There are over 4000 user agents to test and you will need to increase your timeout settings to test them all.
ini_set('max_execution_time', 300);
The number represents seconds, 300 seconds = 5 minutes
Sortable tables
Less resource exhuasting method to test headers
More info on user-agent and status
Ajax loading
Memory dump and exporting
http://www.user-agents.org/ for providing a huge list of user agents!