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Gravity Forms Spam Hexer

Add invisible proof-of-work spam protection and optional AI classification to your Gravity Forms and WordPress comments.

by Gravity Wiz Paid Updated Jun 4, 2026
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What it does

Spam bots fill out forms automatically, wasting your time and cluttering your entries. Spam Hexer stops them by making the visitor's browser solve a small computational challenge in the background before a submission is accepted—no CAPTCHA, no extra steps for real users.

When you turn on the optional AI classification, submissions are analyzed using context from your site, forms, and fields. That catches more sophisticated spam that simple challenges miss. You can connect via WordPress AI Connectors or OpenRouter using models you already have access to.

The plugin covers both Gravity Forms submissions and WordPress comments from one place. You can choose to flag spam, silently reject it, or show a validation error. Detailed analytics show you solve times, pass/fail rates, and AI usage so you can see exactly what was blocked and why.

Key features

  • Invisible proof-of-work challenge stops bots without showing a CAPTCHA to users
  • Optional AI spam classification explains why each submission was flagged
  • Protects both Gravity Forms submissions and WordPress comments
  • Choose to flag, silently reject, or block spam with a validation error
  • Skip spam checks for trusted logged-in users
  • Analytics dashboard with solve times, pass/fail rates, and AI latency tracking
  • Lightweight and cache-friendly design

Good for

High-traffic contact formsStop bots from flooding your inbox without annoying real visitors with CAPTCHAs.
WordPress comment sectionsProtect both form submissions and blog comments from one plugin.
Replacing Akismet or TurnstileUse proof-of-work and AI together as a self-contained alternative to third-party spam services.

Written from Gravity Wiz’s own listing. Version and dates come straight from the source and are checked weekly.

Do visitors have to do anything to prove they're human?

No. The computational challenge runs in the browser background and is invisible to real users.

Is AI classification required?

No, it's optional. The proof-of-work protection works on its own, and you can enable AI analysis separately.

What AI services does it connect to?

It connects via WordPress AI Connectors or OpenRouter, using models you already have access to.

Does it protect WordPress comments as well as Gravity Forms?

Yes, it covers both Gravity Forms submissions and WordPress comments from one place.

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