Real-time Disposable Email Guard

Stop fake signups
at the gate.

LeadCop validates every submission in real time. We instantly filter out disposable emails, bots, and low-conversion role accounts before they pollute your pipeline or CRM.

No credit card requiredWorks on any websiteWordPress plugin
WordPress5.0Available on WordPress.org

Live Validator

Real-time email intelligence engine

Sandbox

Example checks are available instantly. Custom email checks require verification.

Type an email to see LeadCop classify it in real time.

Try Examples

2.4M+

signups checked

99.7%

accuracy rate

<100ms

average decision time

5 min

typical setup

The problem

Every fake signup costs you twice.

First you pay to acquire the lead, then you pay again in bounced campaigns, skewed analytics, and sales time wasted on people who never existed. LeadCop stops both at the form.

Without LeadCop
temp8842@mailinator.comJunk
asdfghjk@gmail.comJunk
test@test.xyzJunk
john@gmial.comJunk

38%

bounce rate

wasted

ad spend

With LeadCop
sarah@acmecorp.com Real
dev@stripe.com Real
hello@figma.com Real
m.chen@shopify.com Real

0.3%

bounce rate

real buyers

only

Why teams use LeadCop

Built to remove friction, not add it.

Keep bad data out, keep good leads moving. LeadCop acts as a seamless gateway that ensures only high-quality contacts reach your team.

Cleaner pipelines

Keep junk addresses out of sales workflows, onboarding, and marketing automation from the start.

Lower ad waste

Paid traffic stops turning into fake submissions, which makes channel performance easier to trust.

Better deliverability

Valid inboxes mean fewer bounces, stronger sender reputation, and more dependable campaign data.

How it works

Three steps to a cleaner funnel

No redesign, no custom flow, no complicated setup sequence. Just install, check, and keep the good data.

01

Connect LeadCop

Add one script or install the WordPress plugin. LeadCop attaches to your forms automatically.

02

Check every signup

Disposable, typo, relay, and role-based emails are classified in real time before they enter your CRM.

03

Keep the good leads

Real visitors move through the form normally while bad data gets blocked or flagged instantly.

For developers

One line of code on any website.

LeadCop works with static HTML, React, Next.js, WordPress, and form builders. Drop in the script or call the REST API — you keep your existing stack and add protection on top.

Sub-100ms decision on every request
REST API + drop-in JS widget
No PII stored, GDPR-friendly
HTML snippetWorks on any site · React, Next.js, plain HTML
Install snippet
<!-- Paste just before </body> -->
<script
  src="https://leadcop.io/leadcop-email-validator.js"
  data-api-key="YOUR_API_KEY">
</script>
View developer docs
API response 200 OK
{
  "email": "temp123@mailinator.com",
  "valid": false,
  "disposable": true,
  "role_account": false,
  "suggestion": null,
  "risk_score": 98,
  "decision": "block"
}

Compatible Platforms

Works with your existing stack.

Our frontend validation script and REST API integrate seamlessly with all major CMS, storefront, and CRM tools.

WordPressOfficial WordPress plugin5.0v1.0.1 · WordPress 6.0+ · FreeView on WordPress.org
WordPressWordPress
WebflowWebflow
Framer
ReactReact
Next.jsNext.js
ShopifyShopify
WordPressWordPress
WebflowWebflow
Framer
ReactReact
Next.jsNext.js
ShopifyShopify

Coverage

Everything you need to
validate emails instantly

Understand email quality in real-time without technical complexity. Precision checks for every contact.

Disposable Email Detection

Instantly blocks 200,000+ burner and temporary email providers. Updated daily to catch new domains.

Input: temp123@mailinator.com
Output:blocked

Public Email Detection

Identifies personal email providers like Gmail or Yahoo, perfect for B2B segmentation.

Input: john.doe@gmail.com
Output:public_domain

Smart Email Suggestions

Intelligently catches common domain typos like gmial.com and suggests the correct fix.

Input: user@gmial.com
Output:suggestion: "user@gmail.com"

Role Account Detection

Flags shared addresses like support@ or admin@ that often lead to poor conversions.

Input: support@company.com
Output:role_account

Comprehensive TLD Validation

Cross-references every email against a database of 1,400+ official TLDs to catch invalid extensions and malformed domains.

Input: user@startup-identity.xyz
Output:domain_exists,tld_valid

Social Proof

Trusted by security specialist & marketing teams.

Our CRM stopped filling up with junk the same day we installed it. The blocked data insights are eye-opening.
M

Marcus T.

E-commerce founder

The plugin was simple enough that marketing handled setup without engineering. It just works.
R

Rachel K.

Growth consultant

Paid signup campaigns became easier to trust because fake leads dropped off immediately. Highly recommend.
D

David M.

SaaS operator

Pricing information is currently unavailable.

Newsletter

Practical notes on lead quality.

Weekly product updates, anti-spam tactics, and lessons from teams cleaning up acquisition funnels.

LeadCop Protected