Security●Mid
DNSweep – DNS lookup with ASN, anycast, and CDN/WAF detection
DNS lookup behind a CAPTCHA is ironic for a reconnaissance tool.
Niche Gem
layer7_ethan
208d ago
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SPF Flattener Solves the 10-Lookup Limit using recursive DNS resolution
by bwoud·Mar 7, 2026·1 point·6 comments
AI Analysis
●MidNiche Gem
SPF flattening via recursive DNS, solves real 10-lookup limit, but audience is narrow sysadmins-only.
Strengths
- •Solves a real, painful constraint: SPF's 10-lookup limit breaks real production email setups—actual pain point.
- •Diagnostic visualization of trust chains makes a complex DNS topology understandable to non-specialists.
Weaknesses
- •Narrow audience: only relevant to teams managing outbound email infrastructure—most companies never hit this issue.
- •No clear monetization or stickiness; one-time diagnostic tool, not a platform or ongoing service.
Category
Target Audience
Email/DNS administrators, SRE teams, operations engineers
Similar To
MXToolbox · Google Admin Toolbox · DNSSEC analyzers
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