# Page Visitors not recognized

**URL:** <https://forum.mautic.org/t/page-visitors-not-recognized/15468>\
**Category:** Product Support\
**Created:** [July 31, 2020, 11:50am UTC](https://forum.mautic.org/t/page-visitors-not-recognized/15468 "2020-07-31T11:50:24Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![stefan](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mautic.org/stefan/32/690_2.png) [@stefan](https://forum.mautic.org/u/stefan)\
**Post date:** [July 31, 2020, 11:50am UTC](https://forum.mautic.org/t/page-visitors-not-recognized/15468/1 "2020-07-31T11:50:24Z")

</div>

Hi All

I installed Mautic on a Docker instance and did do all the cors setting.  
I see that the page is calling mtc.js and mtc/event  
Respond of the event call :{“success”:1,“id”:null,“sid”:null,“device\_id”:null,“events”:[false]}

I do not get any contacts or visits in Mautic.  
What should i check?

Thx