Devion Tools

Domain registration via WHOIS with RDAP fallback

DNS records, ping, OS fingerprint, geolocation, propagation, email auth

HTTP Probe

Headers, SSL/TLS, redirect chain, TTFB, HTTP/2+3, CDN, tech stack, favicon hash

Traceroute

Hop-by-hop network path (may take 15-30 seconds)

Port Scan

27 common ports — only run on domains you own or have permission to test

Check IP against 24 DNS-based blackhole lists

Fix the root cause first — compromised account, open relay, spam complaints.
Request removal: Spamhaus | SpamCop | Barracuda
Set up SPF, DKIM, DMARC — use MXToolbox SuperTool for deep analysis.
Monitor with Google Postmaster Tools and follow Bulk Sender Guidelines.
Keep complaint rates under 0.1% and maintain clean mailing lists.

Length: A-Z a-z 0-9 Symbols

Timestamp to Date

Date to Timestamp

Current Unix time:

Format: minute hour day-of-month month day-of-week | * = any | */n = every n | 1-5 = range | 1,3,5 = list

Include (mail providers)

Allow IPs (optional)

Allow MX?

Fail policy

Policy

Subdomain Policy

Aggregate reports (rua)

Forensic reports (ruf)

Add as TXT record for: _dmarc.yourdomain.com