# DomainPulse – DNS, SPF, DMARC & DKIM Inspector

> Instantly check SPF, DMARC, DKIM, MX, NS, SOA and TXT records for any domain right from your toolbar. Uses Cloudflare & Google DNS-over-HTTPS. No account, no tracking, 100% free.

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

## Overview

- **ID:** `domainpulse`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Arabinda Moharana
- **Category:** web-development,privacy-security
- **Daily users:** 5
- **Rating:** 5.00 / 5 (1 ratings)
- **Version:** 1.0.0
- **Last updated:** 2026-05-13
- **First published:** 2026-05-10
- **Size:** 81 KB
- **Data as of:** 2026-09-14
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/domainpulse/)

## Description

DomainPulse

<strong>DomainPulse</strong> is a DNS and email security inspector for developers, sysadmins, pentesters, and IT professionals.

Check every critical DNS record for any domain in seconds — directly from your Firefox toolbar, with no external website, no account, and no data collection.

What you can check
<ul><li><strong>SPF</strong> — Sender Policy Framework: detect misconfigured or missing SPF records, dangerous <code>+all</code> policies, and DNS lookup overflows</li><li><strong>DMARC</strong> — Domain-based Message Authentication: inspect policy strength (<code>none</code> / <code>quarantine</code> / <code>reject</code>), aggregate report targets, and alignment settings</li><li><strong>DKIM</strong> — DomainKeys Identified Mail: auto-probe 20 common selectors or enter a custom one; view key type and public key</li><li><strong>MX</strong> — Mail Exchange: list all mail servers sorted by priority with automatic provider detection (Google Workspace, Microsoft 365, Proton Mail, and more)</li><li><strong>TXT</strong> — All TXT records with auto-tagging (SPF, DMARC, Google, Microsoft, Atlassian, Stripe, and more)</li><li><strong>NS</strong> — Name Server records with DNS provider detection (Cloudflare, AWS Route 53, Azure, GoDaddy, and more)</li><li><strong>SOA</strong> — Start of Authority: primary nameserver, admin contact, serial, refresh, retry, expire, and TTL</li><li><strong>AXFR</strong> — Zone transfer exposure check with guidance on manual testing</li></ul>
Key features
<ul><li>Uses <strong>Cloudflare DoH</strong> (1.1.1.1) and <strong>Google DoH</strong> (8.8.8.8) — choose your preferred resolver or run both and compare results side by side</li><li>Auto-fills the domain from whichever tab you are currently on</li><li>Cross-resolver diff — instantly see if Cloudflare and Google return different records for a domain</li><li>Colour-coded status badges (<code>Pass</code> / <code>Warning</code> / <code>Not Found</code>) with plain-English explanations</li><li>One-click copy for any raw DNS record</li><li>Zero data collection — all queries go directly from your browser to Cloudflare/Google. Nothing is sent to any third-party server.</li></ul>
Who is it for?
<ul><li>Developers setting up or debugging email delivery and authentication</li><li>Sysadmins auditing DNS configurations</li><li>Security researchers and pentesters checking domain exposure</li><li>IT teams verifying SPF, DMARC, and DKIM during email migrations</li></ul>
All DNS lookups are performed using <strong>DNS-over-HTTPS (DoH)</strong> — encrypted, privacy-respecting queries with no ISP interception.

No browsing history is stored.
No telemetry.
Fully open source.

## Rankings

- #44,534 — Overall
- #129 — domain
- #139 — input

## Permissions and access

### Permissions

- `activeTab`
- `storage`
- `https://cloudflare-dns.com/*`
- `https://dns.google/*`

## Safety

- **Risk impact:** High risk impact
- **Risk likelihood:** Moderate risk likelihood

### Analysis details

- Request access to the following domains: cloudflare-dns.com, dns.google
- This extension has low user count. Unpopular extensions may not be stable or safe.

> Some risk analysis details are omitted from this free response. [Upgrade to view the full analysis](https://chrome-stats.com/pricing).

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