If there is a problem on the site, these automated diagnostic tools will let you know if the problem is on your side or on the server side.
The site is developed with the Mozilla Firefox 50.0 browser. It is tested with Google Chrome. No support is offered for Microsoft Internet Explorer and Edge browsers as well as for Safari.
This site uses recent and sometimes experimental technologies that are incompatible with most browsers prior to 2014. If you have a problem, make sure you have the latest updated version of your browser or download Firefox 50 or higher (available on Android, Windows, Linux, Mac OS, etc.). Firefox is developed by Mozilla, a non-profit foundation that works on web standards and works for the freedom, neutrality and anonymity of the web.