Email Header Analyzer
Use Email Header Analyzer on AboveTool to parse URLs, headers, DNS/WHOIS text, IPs, and certificates in your browser — free, private, no signup.
Email Header Analyzer
breaks down raw email headers for routing, auth, and spam-related fields
Runs in your browser. Live DNS/WHOIS registries are not queried unless a mode explicitly uses a public lookup API.
About Email Header Analyzer
Email Header Analyzer breaks down raw email headers for routing, auth, and spam-related fields. It works by unfolds header lines and indexes From/Received/Authentication-Results. Received chains are newest-first in many clients — read carefully. Email Header Analyzer runs free in your browser at abovetool.com — no signup, instant results.
How to use
- Enter the inputs for this network utility (two IPs, a single address, headers, PEM, and so on).
- Click Compare IPs, Lookup, Convert, or Run depending on the tool.
- Review the on-page result (including bit diffs or maps where shown), then copy or download.
Features
- Mode-specific forms for headers, URLs, IPs, DNS, and certificates
- Client-side parsers and builders — no upload required
- Copy or download results instantly
- Unique tool copy with practical tips for each utility
Frequently asked questions
What is Email Header Analyzer for?
Email Header Analyzer is breaks down raw email headers for routing, auth, and spam-related fields.
How does Email Header Analyzer calculate the result?
It calculates unfolds header lines and indexes From/Received/Authentication-Results.
Any tips for using this calculator?
Received chains are newest-first in many clients — read carefully.
Is Email Header Analyzer free on AboveTool?
Yes. Email Header Analyzer is free to use on abovetool.com with no account required, and results are calculated instantly in your browser.