The study analyzed the mobile optimization of the top 100 advertiser websites from 2012 to 2013. It found that the percentage of optimized sites increased from 37% to 57% overall. The FMCG, Retail, Media, and Automotive sectors saw the highest optimization rates in 2013, with 79%, 73%, 71%, and 70% respectively. The Finance and Technology/Telecom sectors had lower optimization at 50% and 36%.