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Is It Disposable

Disposable email address detection: a drop-in JavaScript snippet and a clean REST API.

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Overview

Disposable email detection that protects your signups, your sender reputation, and your metrics. A drop-in snippet and a clean REST API return a verdict your policy maps to allow, warn, or block. DNS-level detection, no SMTP probing, fails open. Try the live demo.

AI summary

Is It Disposable offers a solution for detecting disposable email addresses through a JavaScript snippet and a REST API. It aims to protect user signups and maintain sender reputation by allowing users to set policies for handling disposable addresses.

Who Is It For

Best for

Businesses looking to reduce fake signups and improve the quality of their email lists, particularly in marketing and customer engagement.

Not for

Companies that do not require email verification or those with minimal email interactions.

Strengths & Weaknesses

Biggest strength

The tool provides real-time detection of disposable email addresses with a flexible policy mapping system, allowing users to customize responses based on their needs.

Biggest weakness

Pricing details are not fully visible, which may hinder decision-making for potential users (AI-inferred; may be outdated – founders can correct this).

Classification

Likely competitors
ZeroBounceNeverBounceHunter.io

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How we sourced this: Observed fields () were crawled from https://isitdisposable.com/ and are stated as fact. AI-inferred fields () were generated by gpt-4o-mini and are always labelled – never presented as measured fact. Last updated: 15 August 2026. Is this your tool? Claim it to edit and get a do-follow badge.