Is valkyrie.comodo.com accepts every data I send if I have correct auto generated id

You need multiple servers for that otherwise even if you send 300k requests from one server it didn’t going to work. So yes but you need many servers. If you can see for testing I send many testign requests to Bitdefender from one server to collect test data and nothing happened to his server excpet one requests get non 200 (too many requests error but this very rarely happen when you collect data parallel) after many requests but then become normal.