# ISC DNS Checker

> Utilities

Canonical page: [https://chrome-stats.com/d/id1141834002](https://chrome-stats.com/d/id1141834002)

## Overview

- **ID:** `id1141834002`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** Internet Systems Consortium, Inc.
- **Category:** Utilities
- **Rating:** 3.00 / 5 (1 ratings)
- **Version:** 0.15
- **Last updated:** 2019-11-18
- **First published:** 2017-02-10
- **Size:** 19 MB
- **Data as of:** 2026-09-15
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/isc-dns-checker/id1141834002)
- **Privacy policy:** [https://www.isc.org/privacy/](https://www.isc.org/privacy/)

## Description

Deployment of important new DNS features such as DNSSEC relies on end users having access to DNS resolvers which behave correctly per the specifications.

This app, from ISC Research, tests recursive DNS servers for conformance against current DNS protocol specifications, especially with regard to EDNS(0) as specified in RFC 6891.

The app can automatically detect the DNS servers automatically discovered by your iOS device, or you can enter IP addresses to be tested manually.  Both IPv4 and IPv6 are supported.

Please send comments and questions to bind-users@lists.isc.org (email list subscription required)

## Rankings

- #940,918 — Overall

## Similar extensions and apps

- [ISC Dig](https://chrome-stats.com/d/id1115648880) — 3.20 / 5
- [DnsQuery](https://chrome-stats.com/d/id6762698643)
- [DNS Resolver Pro](https://chrome-stats.com/d/id6781981805)
- [DNS Inspector](https://chrome-stats.com/d/id6470965982) — 4.90 / 5
- [DNS Speed Tester](https://chrome-stats.com/d/id6775122153) — 5.00 / 5
- [DNS Kit - Domain & Email Check](https://chrome-stats.com/d/id6759445456) — 5.00 / 5
- [DNS Configurator](https://chrome-stats.com/d/id1532682460) — 3.40 / 5
- [DNS Propagation](https://chrome-stats.com/d/id6736484331)
- [DNS Finder Pro](https://chrome-stats.com/d/id6774721852)
- [Softricks iDig](https://chrome-stats.com/d/id522550738)
- [DNS Benchmark+](https://chrome-stats.com/d/id6760799772) — 5.00 / 5
- [DNS Quick: DNS Settings](https://chrome-stats.com/d/id6773666270)

---

Source: [Chrome-Stats](https://chrome-stats.com/d/id1141834002)