Disposable Email Detection
Automatically blocks throwaway email services like Mailinator, Guerrilla Mail, and thousands of other temporary address providers. Keeps your user base clean from day one.
🎁 Early Bird — 99 Free Licensesv1.0.0 · WordPress Plugin
Stop Spam Registrations
on Your WordPress Site
Register Radar wraps your registration form in 10+ intelligent protection layers — blocking bots, fake emails, VPNs, and known spammers before they ever get an account on your site.
✓
Works with every WordPress theme✓
No coding required✓
Setup in under 2 minutes✓
GPL-2.0 licensed10+
Protection layers
100+
Blockable countries
4
CAPTCHA types
0
API keys needed to start
$9.99
Regular price (after offer)
Feature-Rich Protection
Every attack vector — covered
Each layer works independently and together, giving you granular control over exactly who can register on your site.
MX Record Validation
Verifies that the email domain actually has a valid mail server. Rejects addresses with non-existent or misconfigured domains before they ever hit your database.
IP Rate Limiting
Stops brute-force registration attacks dead. Configure maximum attempts per time window — any IP that exceeds it is automatically blocked and logged.
StopForumSpam Integration
Cross-references every registration attempt (IP, email, and username) against the largest open spammer database in the world — completely free, no API key needed.
Geo-Blocking
Block registrations from specific countries using ISO country codes. Protect your community from regions known for bot traffic without impacting legitimate users worldwide.
Honeypot Trap
Invisible fields that real users never see or fill — but bots always do. Paired with a minimum form-fill timer to catch automated scripts that submit instantly.
Multi-CAPTCHA Support
Choose from Google reCAPTCHA v2 (checkbox), reCAPTCHA v3 (invisible score-based), hCaptcha (privacy-focused), or the built-in Math CAPTCHA that requires zero API keys.
VPN & Proxy Detection
Optionally detect and block registrations from VPNs, data center IPs, and Tor exit nodes via IPQualityScore — a free API key gets you started immediately.
Score-Based Threat System
Every suspicious signal adds to a cumulative threat score. Only block when the combined score exceeds your threshold — minimizing false positives while catching sophisticated bots.
Email Double Opt-In
Send a verification email after registration and hold the account until confirmed. Eliminates invalid addresses and ensures genuine intent from new users.
Blacklist & Whitelist
Manually block or allow specific IPs, emails, domains, and usernames. Trusted entries fast-pass all checks; blacklisted entries are stopped at the door.
Admin Notifications
Get email alerts when blocks exceed your configured hourly threshold. Know immediately when your site is under attack before damage is done.
Simple Setup
Up and running in minutes
No developer experience needed. Install, activate, and your registration form is protected immediately with smart defaults.
1
Install & Activate
Upload the plugin via WordPress Admin → Plugins → Add New. Click Activate and protection starts immediately with smart defaults.
2
Configure Layers
Visit Register Radar → Settings. Toggle on the protections you need: honeypot, disposable email, geo-blocking, CAPTCHA, and more.
3
Monitor the Dashboard
Watch real-time charts, top block reasons, and a live feed of blocked attempts — all from your WordPress admin panel.
4
Stay in Control
Manage your blacklist, export logs to CSV, receive email alerts, and fine-tune your threat score threshold at any time.
Multi-Layer Architecture
Checks run in the right order
Fastest checks run first — whitelisted entries pass instantly while suspicious signals stack up against the threat score before any block decision is made.
1
Whitelist fast-pass
Trusted IPs and emails skip all checks instantly2
Blacklist & Bot User-Agent
Known bad actors blocked before any API calls are made3
Honeypot + Timing check
Catches automated scripts with zero user friction4
CAPTCHA Verification
Human confirmation via your preferred CAPTCHA type5
IP Rate Limit + Geo Block
Stops flood attacks and regional threats6
Disposable Email + MX Record
Fake email blocking and domain DNS verification7
StopForumSpam + Score Gate
Final verdict via cumulative threat score (0–100)Real-Time Dashboard
Full visibility into every attempt
See exactly who is being blocked and why — with live charts, log tables, and one-click block-from-log actions, all inside your WordPress admin.
2,847
Total Blocked
1,203
Total Allowed
4,050
Total Attempts
142
Blacklist Entries
Flexible CAPTCHA
Pick the right challenge for your audience
Switch between verification methods from the settings panel — no code changes ever required.
✅
reCAPTCHA v2
Classic Google checkbox challenge. Simple and familiar to most users worldwide.
👁
reCAPTCHA v3
Invisible background scoring. Zero friction — real users never see a challenge.
🔒
hCaptcha
Privacy-focused alternative to Google. GDPR-friendly and free to use.
🧮
Math CAPTCHA
Built-in math question. No API key, no external service, works everywhere.
Simple Pricing
One plugin. One price. Full protection.
No subscriptions, no hidden fees, no renewals. Pay once and own it.
🔥 Early Bird
For the First 99 Buyers
$0$9.99
1-year full license — completely free
Seats filling up fast
Offer ends when 99 licenses are claimed✓
All 10+ protection layers✓
Real-time admin dashboard & charts✓
Blacklist, whitelist & log management✓
All 4 CAPTCHA types included✓
Geo-blocking for 100+ countries✓
CSV export & admin email alerts✓
1 full year of updates & supportRegular Price — After Early Bird
$9.99
One-time payment · Single site license
✓
Everything in Early Bird✓
Lifetime plugin ownership✓
Regular security updates✓
Email support included✓
GPL-2.0 — use freely on your siteFAQ
Frequently asked questions
Does it work with any WordPress theme?
Yes. Register Radar hooks into core WordPress registration events, not theme templates. It works with all themes — including Homey, Elementor, WooCommerce, BuddyPress, and any other theme or plugin using WordPress registration.
Do I need an API key to start?
No. Most features — honeypot, disposable email detection, MX record check, StopForumSpam, Math CAPTCHA, and geo-blocking — all work with zero API keys. VPN/Proxy detection optionally uses a free IPQualityScore key.
Will it block real users by mistake?
Unlikely with default settings. The score-based system accumulates suspicious signals before making a block decision. A single minor flag won't block someone. The whitelist lets you instantly green-light trusted IPs or emails.
Will it slow down my website?
No. All checks run only at registration form submission — never on regular page loads. Validation is fast, lightweight, and adds no measurable latency to your site's Core Web Vitals scores.
What exactly is the early bird offer?
The first 99 customers receive a full 1-year license at absolutely no cost — $0.00. After the 99-seat limit is reached the plugin returns to its regular price of $9.99 USD (one-time payment).
Can I export my registration logs?
Yes. Go to Register Radar → Logs in your WordPress admin and click "Export CSV". You'll get a complete export of all logged attempts including IP, email, block reason, and threat score.
What WordPress and PHP versions are required?
Register Radar requires WordPress 5.6 or higher and PHP 7.4 or higher. It is fully compatible with PHP 8.x and all modern WordPress versions including the block editor (Gutenberg).
What does the license cover?
The plugin is GPL-2.0 licensed for a single site per license. During the early bird period your 1-year license includes all updates and email support at no charge whatsoever.
Your registration form deserves
real protection.
Join the first 99 users and get a full year of Register Radar — free. No credit card required.
🎁 Get My Free License NowAfter 99 seats are claimed, price returns to $9.99 USD · One-time payment · GPL-2.0 license