Help with HttpsService

I am trying to send an post request to an api (I made). I tested the same url that roblox should have send a post request to and it worked with no problems. But when I do it in roblox it does not work. No errors just does not work

--Server Script
local err, success = pcall(function()
		responce = HttpService:PostAsync('https://api.rankblox.tk/promote?apiKey='.. tostring(ApiKey.Value).. '&Username='.. tostring(username).. '&RankerId='.. tostring(plr.UserId))
			data = HttpService:JSONDecode(responce)
	end)
	print(responce)
	print(data)
	print(err)

How were you testing it before roblox?

I am using insomnia on windows

Can you show what you were running with it

Huh? Like insomnia or roblox or the api?

Insomnia, like exactly what you ran to test it

I put in: https://api.rankblox.tk/promote?apiKey=324bfd908fd14d6b1f5cb91bd0a628fb&Username=TEST1232323232232323&RankerId=666825250
As a post request

And it returns properly?

And no php errors on the website?

Works as it should on insomnia but does not work in roblox

if you are running it from server then you need a proxy most likely but that stuff doesn’t work on the client from what I 've heard

I am trying to send a request to a non roblox server (I own) would I still need a proxy?

As Discord banning Roblox API directly.

Its not a request to discord, its a request to my server that does not connect to discord or roblox

Okay then.

--Server Script
local responce --Scope.
local success, data = pcall(function()
		responce = HttpService:PostAsync('https://api.rankblox.tk/promote?apiKey='.. tostring(ApiKey.Value).. '&Username='.. tostring(username).. '&RankerId='.. tostring(plr.UserId))
			return HttpService:JSONDecode(responce)
	end)
	print(success)
	print(responce)
	print(data)
local success, data = pcall(function()
		--responce = HttpService:PostAsync('https://api.rankblox.tk/promote?apiKey='.. tostring(ApiKey.Value).. '&Username='.. tostring(username).. '&RankerId='.. tostring(plr.UserId))
		responce = HttpService:RequestAsync(
			{
				Url = 'https://api.rankblox.tk/promote?apiKey='.. tostring(ApiKey.Value).. '&Username='.. tostring(username).. '&RankerId='.. tostring(plr.UserId),  -- This website helps debug HTTP requests
				Method = "POST",
				Headers = {
					["Content-Type"] = "application/json"  -- When sending JSON, set this!
				}
			}
		)
			return HttpService:JSONDecode(responce)
	end)