What are MX records used for?

MX (Mail Exchange) records specify which mail servers are responsible for accepting incoming emails on behalf of your domain name.

DNS Records Lookup

Essential

Query live DNS records (A, AAAA, CNAME, MX, TXT, NS, SOA, CAA) for any domain using DNS-over-HTTPS.

Local Browser Execution: Direct HTTPS queries to public DoH resolvers. No logging of searched domain names.

RFC 8484 DNS-over-HTTPS (DoH) Protocol Specification

Understanding Your Results

A/AAAA map hostnames to IPv4/IPv6 addresses. MX specifies mail servers. TXT holds verification tokens (SPF, DKIM, Google verification). NS indicates authoritative nameservers.

Practical Guidance & Next Steps

When changing web hosts, check the TTL (Time To Live). If TTL is 3600, changes will take approximately 1 hour to propagate globally. Use MX lookups to verify email routing prior to cutover.

What is this?

A zero-backend DNS query interface that communicates directly with public DNS-over-HTTPS (DoH) resolvers to fetch authoritative DNS entries for any domain.

How does it work?

1. Enter a domain name (e.g., example.com). 2. Select the record type (ALL, A, AAAA, MX, TXT, CNAME, NS, SOA). 3. View formatted records with TTL (Time To Live), IP addresses, and priority values.

Why use it?

Essential when migrating web hosting, verifying Google/Microsoft domain ownership TXT records, configuring SPF/DKIM/DMARC email security, or diagnosing DNS propagation.

Technical Scope & Calculation Limitations

Queries public DNS-over-HTTPS resolvers (Cloudflare 1.1.1.1). Local intranet split-brain DNS records behind private firewalls are not queryable from public resolvers.

Frequently Asked Questions

DNS changes usually propagate within a few minutes up to 48 hours, depending on the TTL (Time To Live) configured on your previous DNS records.

Complementary Utilities

Related Tools for Your Workflow

All Internet & Network tools

network

Essential

What is My IP Address?

Instantly check your public IPv4 and IPv6 address, internet service provider (ISP), location, and connection details.

HTML/JS Client Network Utility

network

Popular

Ping & Latency Test

Measure HTTP network round-trip latency, jitter, and connection stability to global server nodes in real time.

HTML5 Fetch API / High Resolution TimersClient Network Utility

developer

Essential

URL / URI Encoder

Encode raw strings and query parameters into standard percent-encoded URLs (encodeURI & encodeURIComponent).

HTML/CSS/JSStatic Utility

network

Essential

Browser & System Info

Inspect your browser engine, operating system, hardware concurrency, memory, GPU WebGL renderer, and feature support.

HTML5 / Web APIsStatic Utility