Why do ads not buffer?

Originally Answered: Why do ads not buffer in a YouTube video? Because of the small amount of ad videos, they can cache them locally in data centers closer to people’s homes and the video loads faster. They can’t do this with all Youtube videos because there are simply too many and they are too long.

Why do ads take so long to load?

The number of HTTP requests made by ad networks is a huge issue, and it’s compounded even more when you start to take into account where all of these ad servers are located. The more physical distance that has to be traveled to return ads to your website, the slower the page load times will be.