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Shodan vs Censys

Shodan is the original banner search engine with a huge community and a monitor product. Censys is the research-grade scanner with a structured host and certificate model.

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Shodan and Censys both scan the internet and let you search what they found. Shodan is older, broader in community tooling, and known for banner grabs, filters, and monitoring. Censys grew out of academic scanning and emphasises a structured, well-documented data model for hosts and certificates with a precise query language. Security teams often hold both; investigators usually start with Shodan.

Pick Shodan for breadth, community tooling, and quick host and IP lookups. Pick Censys for structured host and certificate data and a precise query language in research or attack-surface work.

What each is best for

On SearchIn
Shodan
  • Quick lookups on an IP or domain to see exposed services
  • Monitors and alerts on your own ranges
  • A large ecosystem of integrations and tutorials
OSINT platform
Censys
  • Structured host, service, and certificate records
  • Certificate transparency and TLS research
  • Attack-surface management with a documented query language

Shodan vs Censys, side by side

Structural differences and access models. No invented list prices for either tool.

Shodan vs Censys comparison
 ShodanCensys
Data modelBanners and parsed services per IP and port.Structured hosts, services, and certificates with a schema.
Query languageFilter syntax that many people already know.Precise field-based search syntax.
MonitoringMonitor product for your own networks.Attack surface management product.
AccessFree tier, memberships, API plans.Free tier for search, paid plans for API and ASM.
CommunityVery large; many tools integrate it.Strong in research and security engineering.

Where OSINTverse fits

  • Shodan is on SearchIn: run a domain or IP lookup per query from the shared wallet, next to WhoisXML, SecurityTrails, Whoxy, and BuiltWith on the same domain, with no Shodan plan.
  • Censys is not integrated. Use its own portal for certificate and structured host research.
  • Shodan monitors and advanced filters remain features of Shodan's own plans; SearchIn runs the lookup and files the result.
OSINTverse vs ShodanOSINTverse vs CensysShodan on SearchIn

FAQ

Shodan vs Censys, answered

Which has better coverage?

Both scan the full IPv4 space on their own schedules and differ in freshness per port and protocol. For a specific host, check both when it matters.

Can I run Shodan without a Shodan account?

Yes, on SearchIn. The lookup is priced per query and charged to your OSINTverse wallet. For monitors and the full filter set, you still want Shodan directly.

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