Records
144,483,852
File size
1.98 GB
Update frequency
Full Database
About this dataset
Worldwide database of domains with mail exchange records. Includes MX server information for email routing.
This extract is processed through the WebTrackly pipeline to ensure accuracy, consistency, and rapid delivery. All Domains with MX Servers is ready for analysis the moment you download — no waiting period, no application process.
Schema
domainThe fully qualified domain name (e.g., example.com).
metadataAssociated registration and DNS metadata where available.
Sample data
Use cases
Marketing & Lead Generation
Reach domain owners with tailored campaigns and build targeted prospect lists at scale.
Market Research
Analyze trends, technology adoption, and industry patterns across a broad cross-section of the web.
Security & Compliance
Monitor registrations for brand protection and threat intelligence — detect phishing and suspicious patterns.
Brand Monitoring
Scan for variations of brand terms to identify cybersquatting and typosquatting before they cause harm.
Frequently asked questions
What are MX records and why do they matter?
MX (Mail Exchanger) records are DNS entries that specify which mail servers are responsible for receiving email on behalf of a domain. A domain with MX records has active email infrastructure, making this data valuable for identifying domains that can send and receive email.
How many domains are included in this dataset?
This dataset contains 144,483,852 domains that have been verified to have at least one active MX record configured in their DNS settings.
What data fields are provided for each domain?
Each record includes the domain name, MX server hostnames (the mail servers handling email for the domain), MX priority values (the preference order for mail servers), and DNS metadata including resolution timestamps.
How can email marketers use this MX records database?
Email marketers can use this data to verify that target domains have active email infrastructure before launching outreach campaigns, validate email lists by confirming domains can receive mail, and analyze which email providers are used by their target audience for better deliverability optimization.
How is this data collected and how often is it updated?
The data is collected through large-scale DNS resolution, directly querying authoritative name servers for MX records across hundreds of millions of domains. The dataset is regularly refreshed to ensure accuracy and reflect current DNS configurations.