What is DigInterface?
DigInterface is a free online toolkit for domain owners, email admins, and IT professionals to test DNS records, check blacklist status, run WHOIS lookups, analyze SPF macros, and review email headers.
Is DigInterface free to use?
Yes! All of our tools are free to use and require no registration.
How do I check if my domain or IP is blacklisted?
Use the Blacklist Checker tool. Enter your domain or IP address and we’ll check the most popular DNS-based blocklists (RBLs/DNSBLs).
Can I look up WHOIS for both domains and IP addresses?
Yes, our WHOIS Lookup supports both domain names and IPv4/IPv6 addresses.
What is an SPF macro and why test it?
SPF macros are variables in SPF records that expand based on the email sender’s IP, HELO name, and other data. Testing ensures your SPF records behave as expected and email delivery works properly.
Is my data stored?
No. We do not store any lookup or header data. All queries are processed in real time and discarded.
Who operates DigInterface?
This project is maintained by a small team of email and DNS experts. See the
About page for details.
Can I suggest a feature or report a bug?