I find that download hosts such as rapidgator, depositfile, keep2share, etc are generally safer than streaming tube-sites. Even pornhub and xhamster have dodgy ads for get-rich-quick schemes/scams or software to download to "fix" your computer.
I strongly recommend using one of Chrome, Firefox, Safari and definitely not IE as your browser, and installing a decent ad-blocker (AdBlock is the best IMO but you should tell it to disable "acceptable ads" so it'll also block them).
A lot of sites are using "on-click" events to open a new tab so that they can load an ad in it. Ad-blockers aren't able to block this (yet) so you should pay attention to what you are doing and close any new tabs or windows that are opened without your knowledge.
I've never seen any ads or other BS on either [Login to see the link] or [Login to see the link] and they're both modern and fast for transferring large files so, if you have a choice, use one of these. Highly recommended. This one - [Login to see the link] - also seems pretty decent, altho' not as quick, and I'm sure that there are others.
