Prevent submissions that include blocked words, phrases, or IPs.
Blocklist works by checking every submission against the same list WordPress already uses to catch spam in blog comments (called Disallowed Comment Keys).
- Stop spam and unwanted content before it ever becomes an entry. Any submission with a blocked word, phrase, or IP gets rejected automatically.
- Scope it as tight or loose as you need. Turn it on for a single field, or apply it form-wide to catch everything at once.
- Use the same blocklist you already have for comments. No need to build a separate list — Blocklist works off WordPress’s existing settings.
- Turn on the honeypot to reject spam silently. No error shown, so spammers get no feedback to work with.
See Blocklist Catch a Submission in Real Time
Submit a form with a blocked word, and Blocklist flags exactly which field failed — right where the visitor can see it.

Blocklist Works Well For:
- Filtering out inappropriate submissions. Block entries containing offensive words or phrases before they’re ever saved.
- Quietly blocking repeat offenders. Add a known spammer’s IP or domain to your list and reject their submissions without tipping them off.
- Stopping spam by keyword. Spot the same phrase across multiple spam messages, add it to your list, and future submissions get rejected automatically.
Gravity Wiz Supports Over 150,000 WordPress Websites

Made by Gravity Forms Developers 
🧑💻 We helped build Gravity Forms itself. And now, we’re certified developers.
🚀 14 years shipping Gravity Forms add-ons.
🤝 Legendary support you can count on from real experts. See for yourself.
✨ Something new every week. 70+ plugins and counting, dozens of free ones.
🛡️ Zero risk to use. Try it for 30 days — if it’s not right for you, we’ll refund it.
Get Blocklist
Blocklist is part of the Gravity Perks suite — 48+ plugins to help you build almost anything in Gravity Forms.