While these codes do exist in the source code, they do not represent profile views. Facebook engineers have clarified that these numbers usually reflect:
This demand has fueled a massive market of third-party apps and endless clickbait articles. But does the feature actually exist? Can you really see who viewed your Facebook profile? can you see who viewed your facebook profile
Proponents of this method claim that the numbers that follow these codes are the Facebook IDs of the people who visit your page most frequently. While these codes do exist in the source
If you download an app or browser extension promising this feature, one of three things will happen: Can you really see who viewed your Facebook profile
The bottom line is that if you value your privacy, you should be glad this feature doesn't exist. While the curiosity to see who is checking up on you is natural, Facebook’s lack of a "profile view" feature protects everyone—including you—from having their browsing habits exposed.
For years, a popular urban legend has circulated the internet claiming that you can find out who viewed your profile by looking at the page’s source code. The instructions usually look like this: