I often access the cluster from a Smartphone over 3G. Most of the good DX web sites are advertising and displaying graphics, with filtering tools etc. While this is excellent for regular internet use, it’s not really desirable on a phone interface. Also, page refreshing is often a hinderance!
I have written a very light DX Cluster web site with these problems in mind. It is able to detect common device screens (eg. iPhone) and is specifically designed to be extremely lightweight and simple. There are two versions:
http://dxlite.g7vjr.org/ – The DX Cluster, with unlimited storage
http://skimmer.g7vjr.org/ – Skimmer spots for the last 24 hours max.
HTTPS is also supported. For documentation and options on how to use these pages, please have a look in the Wiki.