Technically, we have a number of easy steps that can be partially effective.
If you're talking on an individual level, almost every search engine has a “SafeSearch” setting. There are also content filters that are available. Most ISPs make those available. There are commercial filter programs as well. These are never going to be 100% effective, particularly when you broaden your definition of inappropriate content beyond just nudity. There are certainly things that we recommend, especially using something free like the SafeSearch.
This is one of the reasons why we approach digital literary in a holistic way. This is why things like authentication and search skills address content issues as well. One of the best ways to avoid finding this is having sufficient search skills so that you're looking for only the one thing that you're looking for, so that you're able to craft a successful search string that will narrow out things you don't want.
There are certainly also steps that you can take to avoid having a profile built. If you watch a video that may, for whatever reason, have inappropriate content algorithmically connected with it, if you're not having a profile of you built, it's going to have less of an effect. There are measures like using search engines that don't collect data on you, possibly using an IP proxy, or using, in some cases, the incognito modes of browsers, or activating the do-not-track function in browsers.
All of those, again, are incomplete on their own. Again, that's why we say that you can never entirely shield young people. That's why we have to talk about these issues. Those are all effective steps that you can take to reduce the odds of those things happening.