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Shodan Book

Shodan Update: September 2026

Improved

  • Broader Certificate Transparency coverage. Subdomain discovery now crawls all public CT logs (usable, read-only and retired), and parses precertificates too. The result is more hostnames in the DNS database.
  • Fresher DNS data. A/AAAA records are now refreshed every 3 days.
  • Faster Shodan Trends. The search overview loads the main charts first and loads the others only when you open them.
  • Complete WHOIS dataset listing. The whoisdb bulk dataset now lists every available file.

New

  • Shodan for AI assistants. shodan.io now publishes /llms.txt, a summary of Shodan written for AI assistants and LLM tools.
  • WHOIS remarks. WHOIS “Remarks” are now shown on the website.