Per Quantcast, the DMN is the 815th most trafficked site in the country with 2,163,338 "people in the United States who visit each site within a month."
https://www.quantcast.com/top-sites/US?jump-to=815
CZ.com is ranked 82,338th with 23,171 visitors per month. Even if all zoners would stop going to the DMN, the DMN wouldn't even notice the 1% reduction in traffic.
For reference, here are a few other local sites with Cowboys content:
No. 556: nbcdfw.com. 3,124,500 visitors/month
No. 826: star-telegram.com. 2,126,462 visitors/month
No. 2,092: bloggingtheboys.com. 914,980 visitors/month
No. 2,953: dallascowboys.com. 638,091 visitors/month
No. 17,424: expressnews.com. 106,185 visitors/month
No. 72,301: insidethestar.com. 26,308 visitors/month
No. 77,831: 5pointsblue.com. 24,486 visitors/month
No. 324,199: cowboyszone.com. 6,163 visitors/month