I'd like to have two distinct actions after submission

I would like to redirect to an external page and I

Hi Andrew,

Thanks for reaching out to Jotform Support. Sure, you can redirect the user to an external page and initiate a webhook on the same form, and this is possible without using Zapier.

You can add a link to the Thank You Page on your form to Redirect Users After Submission. This way, once someone finishes the form, they'll be automatically directed to the webpage you want. Let me show you how to set that up: 

1. In Form Builder, in the orange navigation bar at the top of the page, click on Settings.
2. In the menu that opens on the left side of the page, click on Thank You Page.
3. Now, select Redirect to External Link and paste the URL of the Webpage.

Check out this screencast to see how it'll work:

Regarding integrating your form to a webhook, I have moved it to a new thread to avoid confusion. You can check my reply here.

Reach out again if you have any other questions.