# Redirects & thank-you page

Part of the sendm8 docs: https://sendm8.com/docs#redirects. Index for AI assistants: https://sendm8.com/llms.txt

After a normal form post (not AJAX), sendm8 answers with a `303` redirect, so refreshing the next page never submits the form twice. Where the visitor lands is decided in this order:

1. The `_next` field in the form, if there is one.
2. The redirect URL in the dashboard, under **Form settings → General**.
3. Our default thank-you page.

`contact.html`

```html
<form action="https://sendm8.com/f/k3x9q2m7ab" method="POST">
  <input type="hidden" name="_next" value="https://yourstudio.com/thanks">
  <!-- your fields -->
</form>
```

> **Redirects must be on an allowed domain**
>
> `_next` only works for addresses on one of the form’s allowed domains (**Form settings → General → Allowed domains**). If it points anywhere else, we ignore it and show the default thank-you page. This stops a sendm8 form being used as an open redirect to send people to a phishing site.

The default thank-you page is deliberately quiet: it thanks the visitor, links back to the page they came from and carries a small “Powered by sendm8” and a report link. Your visitors see it, not you, so it doesn’t try to sell them anything. [See the default thank-you page](https://sendm8.com/thanks).