The Search Agency UK recently published a mobile scorecard report  evaluating the mobile sites of the FTSE 100. The report replicated The Search Agency’s previous report  on the Fortune 100 in the US. Both the US and UK reports used the same set of five criteria to assign a total score out of five to each mobile site – load speed, site format, calculated download speed, social media presence, and app presence. So how did the mobile sites of the top companies in the UK compare with their US counterparts? The US slightly outperformed the UK in most of the key criteria. The average score for US sites was 2.31 while the average score for the UK was 1.99. In addition, more of the US sites loaded in under 1 second, and more used responsive web design or a dedicated mobile site than the UK sites. However, the highest scoring UK site, Tesco, received a higher score than the highest ranking US site, Coca Cola. Optimization Strategies for the Mobile Web . The full mobile scorecard reports are available in our research library .