I just visited your site from a mobile device, and one complaint I have with the mobile site is that the pages for some coins like BTC are extremely tall, and it's sometimes difficult to navigate even with the table of contents you provide with each page. Perhaps making just one widget with a tool to change pages would be better on mobile IMO.

The 24-hour volume units are also only displayed in their respective cryptocurrencies, and I think an option to view the volume in fiat currencies would be helpful.

In addition, for at least BTC, the network hashrate is displayed in H/s instead of PH/s or EH/s- it's hard to read so many numbers, and I think using one of the aforementioned units would make the general description of BTC neater.