Seeing referrer urls like

https://l.instagram.com/?u=http://www.example.com/&e=BTPctSgKzf_-3AEudknfwySo4YW52B5wk1evGWzkDvpRCQYf5Kid7P6mQVKbEhsNvwC0WY37vj19ZKQb&s=1

It seems this &e= seems something unique to instagram as I see this in many different URLs. See also https://webmasters.stackexchange.com/a/114165

The e parameter most likely stands for external or event. In the worst case this identifies a user and represents personal data?

We do not want to store this parameter in the DB and want to completely remove that string. Potentially we also want to move the s parameter. Not sure what it stands for.

In some examples this might cause millions of different URLs causing millions of different rows when archiving.