Back to feed
Dev.to
Dev.to
6/28/2026
Subdomain takeover in 2026 — why dangling CNAMEs still pay, and how I find them at scale

Subdomain takeover in 2026 — why dangling CNAMEs still pay, and how I find them at scale

Short summary

Subdomain takeover via dangling CNAMEs remains highly profitable in 2026, with author earning $4,500–$8,000+ per month despite claims the vulnerability is dead. The methodology targets what automated scanners miss: orphaned CNAME chains, recently-acquired hosting providers, and custom CDN patterns. Includes production-grade daily pipeline scanning 1.2M domains in 45 minutes with real case studies and proof-of-concept techniques.

  • •Dangling CNAME takeovers still pay $4.5k–$8k+ per finding despite automation claims
  • •Key misses in standard tools: acquired services, CNAME chains, custom CDN patterns
  • •Runnable daily pipeline scans 1.2M domains in 45 minutes with case study payouts

Generated with AI, which can make mistakes.

#open-source
Read full article at Dev.to

Is this a good recommendation for you?

Comments

Failed to load comments. Please try again.

Explore more

Passive Reconnaissance on google.com — What I Found Using Shodan, WHOIS, and DNS Tools
Dev.to
I shipped an unauthenticated RCE in my own port scanner — here's the whole chain, and how I killed it
Dev.to
WHOIS Is Broken in 2026. Here's the RDAP-First Drop-In That Actually Returns JSON
Dev.to
A Practical Web Application Reconnaissance Methodology for Penetration Testing
Dev.to