What structure would you say this speech follws that matt cutts spoke on

Assuming that you're referring to Matt Cutts' 30 days challenge speech on Ted Talk,

He used an effective opening, in which he told the audiences why he's speaking while clearly stating his main points. He keep the audiences interested by referring them to something that the audience could relate to and an effective closing to persuade the audience to try his challenge

The answer is byour welcome: )