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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 BounceLens?

BounceLens is an online platform tailored for marketers, newsletter authors, e-commerce ventures, sales teams, and developers to validate email lists effectively. Users can conveniently enter individual email addresses or upload a CSV file to uncover problems such as formatting errors, nonexistent domains, absence of mail services, possible typographical errors, temporary email addresses, duplicate entries—including variations with Gmail's dot and plus tagging—and role-based email addresses like info@ or sales@. The tool utilizes publicly available DNS information to assess the mail setup of domains; however, it does not directly connect with recipient mail servers to verify the activity status of a specific mailbox, which is why its results are classified as unconfirmed rather than verified. This capability helps teams identify potentially invalid or risky email addresses prior to sending out communications or managing their lists effectively. Furthermore, BounceLens can be accessed through extensions, add-ons, a self-hosted HTTP API, an MCP server, and various libraries in different programming languages, enabling users to incorporate these checks seamlessly into their ongoing workflows. With its diverse features, BounceLens proves to be a valuable resource for enhancing the integrity of email communications. As a result, it supports organizations in maintaining high standards for their email outreach efforts.

Media

Media

No images available

Integrations Supported

JSON
Laravel
Laravel Jetstream
Make
WordPress
WordPress VIP
Zapier

Integrations Supported

Model Context Protocol (MCP)

API Availability

Has API

API Availability

Has API

Pricing Information

Free
Free Version
Free Trial Offered?

Pricing Information

Free
The email list checker is free to use, with no signup, credits, or stated daily limit.
Free Version

Supported Platforms

SaaS

Supported Platforms

SaaS
On-Prem

Customer Service / Support

Web-Based Support

Customer Service / Support

Not specified

Training Options

Documentation Hub

Training Options

Not specified

Company Facts

Organization Name

UserCheck

Date Founded

2016

Company Website

www.usercheck.com

Company Facts

Organization Name

BounceLens

Date Founded

2026

Company Location

India

Company Website

bouncelens.com

Categories and Features

Email Verification

Not specified

Categories and Features

Email Verification

Not specified

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