What could be causing the forms on my friend's Webflow website to stop working suddenly, even though no recent changes have been made to the forms?
TL;DR
- Check form submission limits in Project Settings and upgrade plan if needed.
- Ensure form action URL and domain DNS settings are correctly configured.
- Verify reCAPTCHA, custom code, and email notifications aren’t causing issues.
- Use browser dev tools to inspect POST requests and test in incognito mode.
If a Webflow form suddenly stops working without recent edits, it’s often due to external issues like hosting configuration, form limits, or email deliverability settings.
1. Exceeded Form Submission Limits
- Free and Lite plans have strict form submission caps (e.g., 50/month on the Free plan).
- Once the limit is hit, forms become non-functional until the counter resets or the site is upgraded.
- Check this under Project Settings > Forms tab, which shows form usage.
2. Removed or Missing Form Action URL
- If the form action setting in the embed code or integration is altered or missing, submissions won’t process.
- Ensure you’re using the native Webflow Forms or a properly configured third-party handler (like Zapier, Make, etc.).
3. DNS or Hosting Misconfiguration
- If the domain was recently changed or the hosting DNS edited (even outside Webflow), forms may fail silently.
- Make sure the domain is fully connected with the correct A records: (a) 75.2.70.75, (b) 99.83.190.102.
- Go to Project Settings > Hosting to verify domain status.
4. Spam Protection or reCAPTCHA Misconfigured
- If reCAPTCHA was enabled and the site key or secret key changed, form blocking can occur.
- Check this under Project Settings > Forms > Spam Protection.
5. Form Submission Warning or Error
- Forms might still be submitting, but users could be seeing client-side errors (e.g., confirmation step fails).
- Use the browser developer console (Inspect > Network tab) to confirm the form POST request and response.
6. Custom Code Interference
- A change in external JS libraries, expired scripts, or broken third-party integrations can interfere with submission.
- Temporarily remove custom code under the Pages settings or Site settings, then test the form again.
7. Email Deliverability Issue
- The form might be submitting correctly, but notification emails could be failing to reach the destination inbox.
- Try changing the Notification Email under Forms tab, or monitor form submissions via Webflow’s Data panel.
8. Browser or Cache Problem
- Local cache issues can prevent the form from rendering or working properly.
- Test the form in an incognito window or another browser.
Summary
To fix Webflow forms that stopped working, check for submission limit exhaustions, domain misconfigurations, spam protection errors, or external script conflicts. Use browser tools to monitor live form behavior and check Webflow’s Forms tab for submission activity and settings.
