I’ve been surprised at how many legitimate sites have those redirecting ‘sweepstakes’ ads these days - sites like politico that you wouldn’t expect to have spammy trick ads. I find it annoying enough - no idea how less technical users handle that.

Get yourself uBlock Origin

Sad. My web experience improved drastically when I started blocking javascript by default. uMatrix is a life saver.

...or when you are on iPad, get Dr. WiFi. It also included an ad blocker.