Originally Posted by shoyuland
May I ask where the data come from?
Data crawled by priority from 3 sources WorldMeter > Arcgis.com API > Wikipedia
WorldMeter is good.
Arcgis.com API is late.
Wikipedia is fast but data struture is not stable.
I created mirrors API which auto crawl data from sources by 5 minutes, if source  datastructe is not OK I wll try to source,...
If all source datastructure is changed or down, my server's cache will not be updated.
All client request will be serve by my serve cache.to protect sources data from flooding.
You can create better application base on my API:
If there are other source I can add more to make it near realtime.