Facebook Pixel vs Fathom

Facebook Pixel runs on 375,046 ranked sites (3.8%); Fathom on 9,996 (0.1%).

By rank tier
TierFacebook PixelShareFathomShare
Top 1,000131.3%20.2%
Top 10,0001531.5%140.1%
Top 100,0003,0533.1%1210.1%
Top 1,000,00027,8522.8%9810.1%
All ranked375,0463.8%9,9960.1%