What is the ruling on the widespread supplications on the internet, which bear names such as "Du'a Jihan," "Du'a Anwar," and "Du'a Manal," whether they are audio or visual?

The exact intent is unclear, but if the girls are raising their voices in supplication without any religiously forbidden act or softness in their voice, then there is no objection. And if they are sharing it online without transgressions, then there is no objection to that either.