Get webpage content with URLSession returns 403

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Tried this in a unit test and works fine:

      func testExample() throws {
          let exp = expectation(description: "...")
          var request = URLRequest(url: URL(string: "https://dibamovie14.top")!)
          let task = URLSession.shared.dataTaskPublisher(for: request).sink {
              print($0)
              exp.fulfill()
          } receiveValue: { data, response in
              print(response)
          }

          waitForExpectations(timeout: 4) { error in
              guard let error = error else { return }
              print(error.localizedDescription)
          }
      }
      
    

call is using the dataTaskPublisher but you should be able to apply the changes to your async approach. User-Agent should be set by default anyway when using URLSession and "Host" is not required

Addendum: you can set the User-Agent if you need it but "Host" should not be set:

Host - Header Field Mandatory since HTTP/1.1.[17] If the request is generated directly in HTTP/2, it should not be used.[18]

Async Await

      func testExampleAsync() async throws {
          var request = URLRequest(url: URL(string: "https://dibamovie14.top")!)
          let (data, response) = try await URLSession.shared.data(for: request)
          print((response as? HTTPURLResponse)?.statusCode)
          print(String(data: data, encoding: .utf8))
      }
      
    

another answer