About this plugin
Your contact form is filling up with junk: throwaway addresses, gibberish names, bot submissions, and — increasingly — enquiries written by AI that read exactly like a real person. Your sales time goes on chasing ghosts, and if you run Google or Meta ads, every junk conversion teaches the algorithm to find you more of the same.
LeadShield screens every submission in real time and blocks the fakes before they land.
No CAPTCHA. Real visitors never see a puzzle, never tick a box, never identify a fire hydrant. Detection is invisible and runs on the submission itself.
What it checks
- Email — syntax, live mail-server (MX) lookup, a disposable/throwaway domain blocklist refreshed weekly, and typo rescue (someone typing gmial.com is offered gmail.com instead of being lost)
- Behaviour — a hidden honeypot field, how fast the form was completed, and whether a human actually typed, moved a mouse or touched the screen (mobile taps and browser autofill are recognised as human, never penalised)
- IP reputation — known abusive addresses, via live threat data
- Phone — format and region validity when a phone field is present
- Device fingerprinting (Pro and Agency — included in your first 14 days) — catches the same device submitting over and over. Hashed in the visitor’s browser; no third-party tracking scripts are loaded on your site
- AI content analysis (Pro and Agency — included in your first 14 days) — reads the whole enquiry in context to spot machine-generated spam text and fabricated identities
Every submission gets a 0–100 risk score and a plain-English reason, so you always know why something was blocked.
Fail-open by design
If LeadShield is ever slow or unreachable, your forms submit normally. An outage on our side can never cost you a real lead. This is a deliberate design choice: we would rather let one junk lead through than lose you a customer.
Works with your existing forms
One setting, no per-form configuration. Automatically protects:
- Contact Form 7
- WPForms
- Gravity Forms
- Elementor Forms
- Ninja Forms
- Formidable Forms
- WooCommerce registration and contact forms
- Any other form on the page, including ones added dynamically by page builders
Pricing
- Free — 100 validations/month, free forever, no credit card
- Pro $99/mo — 10,000/month, plus AI analysis, device fingerprinting, webhooks, CSV export and Google Ads / Meta exclusion exports
- Agency $249/mo — unlimited, one account for all your clients’ sites, plus tunable risk thresholds and configurable data retention
Every account starts with 14 days of Pro — no card — and then stays on the Free plan unless you upgrade.
Privacy
The plugin sets no cookies and no browser storage on your visitors, and loads no third-party tracking. Screened lead data is deleted automatically after 90 days by default (configurable, down to zero, on the Agency plan). Exactly what is sent, and when, is listed under External services below.
External services
ai service, which screens each submission for fake, bot and spam leads. It does nothing until you save a LeadShield API key in Settings → LeadShield.
Once a key is saved:
- Front-end pages load the LeadShield script from https://leadshield.ai/js/shield.js. As with any externally hosted script, the visitor’s browser connects to leadshield.ai to fetch it, so the service receives the visitor’s IP address and browser user agent.
- When a visitor submits a protected form, the script sends the form’s email, name, company, phone and message fields, the page address, how long the form took to fill in, whether keys, mouse or touch were used, a one-way device hash and any ad-click IDs in the page address (such as gclid or fbclid) to https://leadshield.ai/api/validate, which replies with a verdict. The visitor’s IP address and user agent are part of that request.
- Nothing is sent from a form until it is submitted.
ai: terms of service, privacy policy.