How to remove similar elements from beginnign of each line in a text file using sed or similar?

I have text like this:

UgxJam3R6oHGHJMrbHx4AaABAg,,hqJGuSXaWcY,UCkhUJbKZIZsARJx7UsX7nw,NAME,https://URLYOUDONTNEEDTOSEE,2023-03-03T22:45:53,Sometextineed,1,false,0,

and I want to use sed or something to remove and make it like this:

https:/blablabl.com/UCkhUJbKZIZsARJx7UsX7nw,NAME,2023-03-03T22:46:53,Sometextineed

*,,*, replaced with url

I’m new to using Linux in general but I don’t get how sed works. I tried stuff.

Pls give me solution that I can just copy and paste.

Ok I have file with (random,,random,) times 10000 and i need to remove that. All the lines have the same structure.