Does the country provide individual online voter registration/polling assignment checks?

In Austria, there is no need to apply for registration as all citizens with a permanent residence in the country are kept in a permanent register, maintained by the municipalities. Every person shall only be registered once in said register. For European Parliamentary elections, a separate European Electoral Register is maintained.

Source Used: http://www.bmi.gv.at/cms/BMI_wahlen/english_version/overview.aspx