# What does fbclid tell a web site? **URL:** \ **Category:** Factual Questions\ **Created:** [September 14, 2021, 2:37pm UTC](https://boards.straightdope.com/t/what-does-fbclid-tell-a-web-site/950649 "2021-09-14T14:37:02Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![CookingWithGas](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/cookingwithgas/32/485_2.png) [@CookingWithGas](https://boards.straightdope.com/u/CookingWithGas)\ **Post date:** [September 14, 2021, 2:37pm UTC](https://boards.straightdope.com/t/what-does-fbclid-tell-a-web-site/950649/1 "2021-09-14T14:37:02Z")
If I reach a web site through a link from Facebook, Facebook tacks on a parameter to the URL like this: fbclid=IwAR3tB20k54fz\_p66ZfsNttm8QlXTip7bRvDlGGpM3WT-JACCNKtEZ4Ci5Fs Aside from telling the web site that the user came from a Facebook link, what other information is provided in the code? ---
**Author:** ![Atamasama](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/atamasama/32/12961_2.png) [@Atamasama](https://boards.straightdope.com/u/Atamasama)\ **Post date:** [September 14, 2021, 3:01pm UTC](https://boards.straightdope.com/t/what-does-fbclid-tell-a-web-site/950649/2 "2021-09-14T15:01:36Z")
I don’t think you’re going to get an answer. Facebook seems to be keeping that information secret. Here is a web site set up to give information about it by interested parties, and it’s pretty sparse: > **[What is fbclid - the new Facebook parameter? - fbclid](https://fbclid.com/)** > > Do you usually examine the URL address of a web page you visit? Have you noticed that something new appears in some URLs when you click an ad coming from the Facebook’s network? Even though you use an ad blocker, there are still some ways to bypass... I can tell you that fbclid stands for “Facebook Click Identifier”. That web site promises to add more information if and when more info comes out from Facebook or those analyzing it.