[1] Google サイト運営者タグの概要 - DoubleClick for Publishers ヘルプ (2018-04-04 00:18:39 +09:00) https://support.google.com/dfp_premium/answer/181073?hl=ja

[2] GPT Reference  |  Google Publisher Tag  |  Google Developers (2018-02-14 06:49:40 +09:00) https://developers.google.com/doubleclick-gpt/reference