Firefox Browser Add-ons
  • Extensions
  • Themes
    • for Firefox
    • Dictionaries & Language Packs
    • Other Browser Sites
    • Add-ons for Android
Log in
Preview of DigInterface Tools

DigInterface Tools by Jaco

DNS lookup, email header analysis, SSL, blacklist, WHOIS, SPF & propagation checks — right from your toolbar.

0 (0 reviews)0 (0 reviews)
Download Firefox and get the extension
Download file

Extension Metadata

Screenshots
Check a domain or IP against 15+ major DNSBL/RBL blacklists in one clickQuery A, AAAA, MX, NS, CNAME, TXT, SPF, DKIM, DMARC and more — right from your toolbarSee how a DNS change has propagated across public resolvers worldwideFlatten an SPF record into its resolved IP ranges and check your DNS lookup countDomain registration or IP/ASN ownership details, without leaving the page
About this extension
DigInterface Tools brings the DNS, email, and network utilities from diginterface.com straight into your browser toolbar — no need to open a new tab for a quick lookup.

What it does:
- DNS Lookup — query A, AAAA, MX, NS, CNAME, TXT, SOA, PTR, SRV, CAA, SPF, DKIM, and DMARC records for any domain
- Email Header Analyser — paste raw email headers to see SPF/DKIM/DMARC/ARC authentication results and relay hop timing at a glance
- SSL Checker — certificate expiry, issuer, SANs, and TLS version for any domain
- Blacklist Checker — check a domain or IP against 15+ major DNSBL/RBL lists
- WHOIS Lookup — domain registration or IP/ASN ownership details
- SPF Expander — flatten an SPF record into its resolved IP ranges and see your DNS lookup count
- DNS Propagation — check how a DNS change has propagated across public resolvers worldwide

Right-click, anywhere: Select a domain or IP on any page and look it up instantly. Select raw email headers and analyse them without leaving the page. Right-click a link to check where it actually points before you click it. Right-click any page to check its domain.

Requires a free DigInterface account and API key (takes under a minute to set up) — generate one from your account dashboard with the dns and email scopes.
Developer comments
Built and maintained by the developer behind DigInterface. Found a bug or have a feature request? Reach out at info@diginterface.com.
Rated 0 by 0 reviewers
Log in to rate this extension
There are no ratings yet

Star rating saved

5
0
4
0
3
0
2
0
1
0
No reviews yet
Permissions and data

Optional permissions:

  • Access your data for www.diginterface.com

Required data collection, according to the developer:

  • Authentication information
  • Personal communications
  • Website content
Learn more
More information
Add-on Links
  • Homepage
  • Support site
  • Support Email
  • Copy add-on ID
Version
1.0.0
Size
33.52 KB
Last updated
4 days ago (Jul 6, 2026)
Related Categories
  • Web Development
License
All Rights Reserved
Privacy Policy
Read the privacy policy for this add-on
Version History
  • See all versions
Tags
  • privacy
  • security
Add to collection
Report this add-on
Go to Mozilla's homepage

Add-ons

  • About
  • Firefox Add-ons Blog
  • Extension Workshop
  • Developer Hub
  • Developer Policies
  • Community Blog
  • Forum
  • Report a bug
  • Review Guide

Download

  • Download Firefox
  • Windows
  • macOS
  • iOS
  • Android
  • Linux
  • All

Latest Builds

  • Nightly
  • Beta

Firefox for Business

  • Enterprise

Community

  • Connect
  • Contribute
  • Developer

Follow

  • Instagram
  • YouTube
  • TikTok
  • Bluesky
  • Podcast
  • Privacy
  • Cookies
  • Legal

Except where otherwise noted, content on this site is licensed under the Creative Commons Attribution Share-Alike License v3.0 or any later version.