How is "Robot" form_factor detected?
Posted: Tue Jun 12, 2018 2:59 pm
Our website currently uses WURFL (Embedded JavaScript) to show the right design of the website depending on the "form_factor" attribute returned in the globabl WURFL object and we've noticed that occasionally the following attached "User-Agents" will get detected as a "Robot" in the "form_factor" attribute even though other services don't classify these User-Agents to be "Robots". So I am curious how the "Robot" "form_factor" is detected? I have attempted to reproduce this by simply changing the "User-Agent" of my browser to one of the listings below but I was unable to reproduce the behavior so I was wondering if there was something else going on as well. Thank you for taking the time and reading this, pasted below is the list of user-agents.
- Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.132 AOL/11.0 AOLBUILD/11.0.1828 Safari/537.36
- Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.132 AOL/11.0 AOLBUILD/11.0.1828 Safari/537.36
- Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.132 AOL/11.0 AOLBUILD/11.0.1831 Safari/537.36
- Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/43.0.2357.130 AOL/9.8 AOLBuild/4346.2019.US Safari/537.36
- Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.132 AOL/11.0 AOLBUILD/11.0.1831 Safari/537.36
- Mozilla/5.0 (Windows NT 6.1; WOW64; Trident/7.0; rv:11.0) like Gecko
- Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.132 AOL/11.0 AOLBUILD/11.0.1805 Safari/537.36
- Mozilla/5.0 (Windows NT 10.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.132 AOL/11.0 AOLBUILD/11.0.1828 Safari/537.36
- Mozilla/5.0 (Windows NT 6.1; Trident/7.0; rv:11.0) like Gecko
- Mozilla/5.0 (Windows NT 10.0; WOW64; Trident/7.0; rv:11.0) like Gecko
- Mozilla/5.0 (Windows NT 10.0; WOW64; Trident/7.0; Touch; rv:11.0) like Gecko
- Mozilla/5.0 (Windows NT 6.3; WOW64; Trident/7.0; MALNJS; rv:11.0) like Gecko
- Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.132 AOL/11.0 AOLBUILD/11.0.1828 Safari/537.36
- Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.132 AOL/11.0 AOLBUILD/11.0.1828 Safari/537.36
- Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.132 AOL/11.0 AOLBUILD/11.0.1831 Safari/537.36
- Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/43.0.2357.130 AOL/9.8 AOLBuild/4346.2019.US Safari/537.36
- Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.132 AOL/11.0 AOLBUILD/11.0.1831 Safari/537.36
- Mozilla/5.0 (Windows NT 6.1; WOW64; Trident/7.0; rv:11.0) like Gecko
- Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.132 AOL/11.0 AOLBUILD/11.0.1805 Safari/537.36
- Mozilla/5.0 (Windows NT 10.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.132 AOL/11.0 AOLBUILD/11.0.1828 Safari/537.36
- Mozilla/5.0 (Windows NT 6.1; Trident/7.0; rv:11.0) like Gecko
- Mozilla/5.0 (Windows NT 10.0; WOW64; Trident/7.0; rv:11.0) like Gecko
- Mozilla/5.0 (Windows NT 10.0; WOW64; Trident/7.0; Touch; rv:11.0) like Gecko
- Mozilla/5.0 (Windows NT 6.3; WOW64; Trident/7.0; MALNJS; rv:11.0) like Gecko