Site builders

Use Ikiform from no-code site builders that let you paste custom HTML, such as an embed or code block.

Ikiform works anywhere you can put a real HTML <form> on the page, because a plain form post needs no script. Most site builders offer an embed, code or custom HTML block. Paste a form into it and point the action at your endpoint.

This only works when the builder renders your HTML as-is. A builder's own form widget usually posts to the builder's servers instead; use it only if it lets you set a custom action URL with the POST method.

The embed

Custom HTML block

<form action="https://ikiform.com/f/frm_xxxxxxxxxxxxxxxx" method="post" target="_top">
  <label>
    Email
    <input name="email" type="email" required />
  </label>
  <label>
    Message
    <textarea name="message"></textarea>
  </label>
  <input name="_gotcha" type="text" tabindex="-1" autocomplete="off" hidden />
  <button>Send</button>
</form>

<style>
  form { display: grid; gap: 12px; max-width: 420px; font: inherit; }
  label { display: grid; gap: 4px; }
  input, textarea { font: inherit; padding: 8px 10px; border: 1px solid #d4d4d4; border-radius: 6px; }
  button { font: inherit; padding: 8px 14px; border-radius: 6px; border: 0; background: #111; color: #fff; }
</style>

Builders often place custom code inside an iframe. target="_top" makes the thank-you page open in the whole window instead of inside the small frame. If the builder's frame doesn't allow top navigation, the result shows inside the frame.
Set Redirect after submit on the form to send people back to a thank-you page on your site.
Styles inside the block may not inherit your site's styles; the <style> above gives the form a clean starting point.

Allowed domains

If you set allowed domains, list every address the site is served from: your custom domain and the builder's preview or staging domain. Posts from a domain that isn't listed are stored as spam by default, and show the reason origin_mismatch in the dashboard.

Some builders render embeds in a frame whose Origin is null. Ikiform then falls back to the Referer. If the builder strips both, posts can't be matched to a domain; leave allowed domains empty for that form, or set the mismatch policy to spam rather than reject.

Human check

The Ikiform human check works with no extra code: the browser navigates to a short check page on ikiform.com, which sends the post on. Avoid Your own Turnstile keys in builders, since that needs Cloudflare's script on the page.