Institute H21 is the institute in Czech Republic founded in 2016 by Karel Janeček.
According to PR-model, ih21.org is ranked 489,381st in multilingual Wikipedia, in particular this website is ranked 5,792nd in Czech Wikipedia.
The website is placed before copticsolidarity.org and after artgalleryclothing.co.uk in the BestRef global ranking of the most important sources of Wikipedia.