# fbclid

> Meta's click id, added to links people click on Facebook and Instagram.

Source: https://datacenter.so/glossary/fbclid
Also called: Facebook Click Identifier.

`fbclid` is added by Meta to links clicked on Facebook and Instagram, ads and posts alike. Meta's pixel reads it and stores it in the `_fbc` cookie, so a later purchase can be matched to the click.

When sending server events through the Conversions API, you can send the click as `fbc` in the form `fb.1.<time in milliseconds>.<fbclid>`, copying the `fbclid` exactly, since it is case sensitive ([Meta](https://developers.facebook.com/docs/marketing-api/conversions-api/parameters/fbp-and-fbc)). Safari removes `fbclid` from links opened from Mail, Messages and Private Browsing.

## Related terms

- https://datacenter.so/glossary/click-id
- https://datacenter.so/glossary/conversions-api
- https://datacenter.so/glossary/gclid