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What is UserCheck?

UserCheck is a sophisticated real-time API for email validation that aims to detect and thwart the usage of disposable, temporary, and potentially fraudulent email addresses and domains, enabling applications to focus on genuine users while reducing instances of fake registrations and misuse. It evaluates the credibility, activity status, and trustworthiness of both email addresses and domains, analyzes domain reputation, identifies public email providers, relays, and role accounts, and offers smart suggestions for common misspellings and syntax errors, with the capability to handle large lists in bulk. UserCheck regularly updates its database of disposable emails and enhances its validation methods, providing easy integration through a simple REST API that returns consistent JSON responses for efficient, low-latency verification tasks. It is designed to scale effectively to manage high volumes of requests while maintaining high-performance quality, incorporating tools for managing workflows across various environments, including development, staging, and production. Additionally, it features customizable blocklists, webhook support, and seamless compatibility with multiple tools, broadening its adaptability for a range of applications. Overall, UserCheck serves as a robust solution for maintaining the integrity of email communications in various digital contexts, ensuring organizations can interact securely and reliably with their user base.

What is NoParam?

NoParam is an API for email validation that assists businesses and website owners in minimizing fraudulent signups and curbing spam. Additionally, it enhances the likelihood of emails being successfully delivered. Tailored for smooth integration with WordPress and various other platforms, NoParam guarantees that only genuine and active email addresses are entered through your forms. This functionality not only protects your online presence but also improves user engagement by ensuring that communications reach the intended recipients.

Media

Media

Integrations Supported

WordPress
Contact Form 7
JSON
Laravel
Laravel Jetstream
Mailchimp
Make
WPForms
WordPress VIP
Zapier

Integrations Supported

WordPress
Contact Form 7
JSON
Laravel
Laravel Jetstream
Mailchimp
Make
WPForms
WordPress VIP
Zapier

API Availability

Has API

API Availability

Has API

Pricing Information

Free
Free Trial Offered?
Free Version

Pricing Information

$29/month
Free Trial Offered?
Free Version

Supported Platforms

SaaS
Android
iPhone
iPad
Windows
Mac
On-Prem
Chromebook
Linux

Supported Platforms

SaaS
Android
iPhone
iPad
Windows
Mac
On-Prem
Chromebook
Linux

Customer Service / Support

Standard Support
24 Hour Support
Web-Based Support

Customer Service / Support

Standard Support
24 Hour Support
Web-Based Support

Training Options

Documentation Hub
Webinars
Online Training
On-Site Training

Training Options

Documentation Hub
Webinars
Online Training
On-Site Training

Company Facts

Organization Name

UserCheck

Date Founded

2016

Company Website

www.usercheck.com

Company Facts

Organization Name

NoParam

Date Founded

2025

Company Website

noparam.com

Categories and Features

Email Verification

Bulk Email Verification
Catch-all Server Detection
Disposable Email Detection
Domain Check
Mail Server Validation
Single Email Verification
Spam Trap Detection
Syntax Check

Categories and Features

Email Verification

Bulk Email Verification
Catch-all Server Detection
Disposable Email Detection
Domain Check
Mail Server Validation
Single Email Verification
Spam Trap Detection
Syntax Check

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