4. Reverse image search

Have you ever heard about reverse image search? Reverse image search is a function that allows you to search for saved photos from your computer on the internet. The process is simple. It’s like you search for a word, but instead of a word, you use a photo. The most popular services you can use for that are Google and TinEye.

Now, if you want to use this to help you find out if your partner is cheating, the most effective thing you can do is check their favorite selfie. Enter one of their social media pages and download their profile picture. There is a high chance they are also using it for their online dating profile if they have one.