Inverse spike after New Year's Eve ? (via Alexa)

http://www.alexa.com/siteinfo/match.com
http://www.alexa.com/siteinfo/pof.com
http://www.alexa.com/siteinfo/okcupid.com
http://www.alexa.com/siteinfo/eharmony.com
http://www.alexa.com/siteinfo/eharmony.ca
http://www.alexa.com/siteinfo/elitesingles.com
http://www.alexa.com/siteinfo/elitesingles.ca
http://www.alexa.com/siteinfo/zoosk.com
http://www.alexa.com/siteinfo/badoo.com


There is no info from Compete because it was shut down last Dec 31st 2016.

Other information from SimilarWeb
https://www.similarweb.com/top-websites/category/people-and-society/relationships-and-dating
https://www.similarweb.com/website/pof.com#overview
https://www.similarweb.com/website/okcupid.com#overview
https://www.similarweb.com/website/match.com#overview
https://www.similarweb.com/website/eharmony.com#overview
https://www.similarweb.com/website/eharmony.ca#overview
https://www.similarweb.com/website/elitesingles.com#overview
https://www.similarweb.com/website/zoosk.com#overview
https://www.similarweb.com/website/badoo.com#overview

and
https://www.similarweb.com/website/gotinder.com#overview
https://www.similarweb.com/website/tinder.com


From Alexa and SimilarWeb: 2017 worst year ever for the Online Dating Industry???
http://onlinedatingsoundbarrier.blogspot.com.ar/2017/02/from-alexa-and-similarweb-2017-worst.html 
Alexa and SimilarWeb show the rising tide is not happening for Online Dating Industry 2017
http://onlinedatingsoundbarrier.blogspot.com.ar/2017/01/alexa-and-similarweb-show-rising-tide.html