After a 301 redirect is removed, how do I get mobile browsers to stop caching it?

Question:
I’ve made a 301 redirect for a client as per their request several weeks ago. They then asked me to remove the redirect.
Since I have done that, on mobile browsers, the redirect is still running - i believe because of the very aggressive dns caching on mobile.
Is there any way to stop this from happening?

What have you already tried:
I’ve built a piece of custom code that looks for the referrer, and will send the user back to the og page (subdomain to avoid redirect), but the referrer is coming back empty after the redirect.

It’s been several days since i removed the redirect, but from what I’ve read, the redirect will be stored indefinitely :frowning:

You can control the cache manually from page settings