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Head-to-head · OSINT Tools

BuiltWith vs Censys Attack Surface Management

  • Updated Oct 2026
  • Both researched from official sources
  • 2 checks side by side
Higher score BuiltWith #3 in OSINT Tools 8.6/10 Free plan Free plan✓ 1 of 6 features Visit BuiltWith
Censys Attack Surface Management #4 in OSINT Tools 8.2/10 Pricing on request ✓ 1 of 6 features Visit Censys

BuiltWith leads on 0 checks, Censys Attack Surface Management on 0, and 2 are even. Who comes out ahead on the 2 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreBuiltWith · 8.6/10
  • Free planonly BuiltWith

BuiltWith scores higher on our rubric for osint tools: 8.6 against 8.2 out of 10; our editors rank them #3 and #4.

BuiltWith is the better fit for technology-focused web reconnaissance. Censys Attack Surface Management is the better fit for continuous external attack-surface investigations.

  • BuiltWith fits best

    Technology-focused web reconnaissance

  • Censys Attack Surface Management fits best

    Continuous external attack-surface investigations

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Side by side

Feature BuiltWith 8.6/10 Visit ↗ Censys Attack Surface Management 8.2/10 Visit ↗
At a glance
Editor score 8.6 8.2
Ranking #3 in OSINT Tools #4 in OSINT Tools
Best for Technology-focused web reconnaissance Continuous external attack-surface investigations
Pricing model Free plan + paid Paid
Starting price $144/yr Pricing on request
Free plan ✓ (best) Not checked yet
Free trial — —
Deployment Cloud, Browser extension Cloud
Platforms Web, Chrome extension Web
Support Email, Phone Email, Docs
Integrations 16 integrations 12 integrations
Built for Small business, Mid-market, Enterprise Mid-market, Enterprise
Features BuiltWith 1/6 · Censys Attack Surface Management 1/6
Social source search Not checked yet Not checked yet
Domain & IP lookup Not checked yet Not checked yet
Monitoring & alerts Not checked yet Not checked yet
Link analysis Not checked yet Not checked yet
API access ✓ ✓
Data export Not checked yet Not checked yet
Our review
Pros
  • Profiles website technologies and tracks historical usage.
  • Filters lead lists by technology, location, spend, and company signals.
  • Offers exports, lookup APIs, and broad CRM and data integrations.
  • Continuously monitors internet-facing assets for exposure changes.
  • Connects AWS, Google Cloud, and Azure resources to asset visibility.
  • Maps asset relationships and supports remediation through security integrations.
Cons
  • Its focus is website and company technology, not general-purpose OSINT.
  • Advanced reports and integrations require paid plans.
  • The Free plan is limited to individual website lookups.
  • Sales-led pricing makes costs harder to compare upfront.
  • Its security focus is less suited to general OSINT research.
  • Cloud deployment and email or documentation support may not fit every workflow.
Our verdict

BuiltWith profiles websites to identify the technologies they use, with tools for creating and filtering technology-based lead lists. It is aimed at sales, marketing, research, and investment teams investigating companies through their web…

Read the review →

Censys Attack Surface Management discovers and monitors an organization’s internet-facing assets, including hosts, domains, certificates, services, and cloud resources. External scanning and attribution help build an inventory, identify…

Read the review →
  1. BuiltWithOSINT Tools 8.6Free plan
  2. Censys Attack Surface ManagementOSINT Tools 8.2Pricing on request

Strengths and trade-offs

  • BuiltWith — where it wins

    • Profiles website technologies and tracks historical usage.
    • Filters lead lists by technology, location, spend, and company signals.
    • Offers exports, lookup APIs, and broad CRM and data integrations.

    Where it doesn't

    • Its focus is website and company technology, not general-purpose OSINT.
    • Advanced reports and integrations require paid plans.
    • The Free plan is limited to individual website lookups.

  • Censys Attack Surface Management — where it wins

    • Continuously monitors internet-facing assets for exposure changes.
    • Connects AWS, Google Cloud, and Azure resources to asset visibility.
    • Maps asset relationships and supports remediation through security integrations.

    Where it doesn't

    • Sales-led pricing makes costs harder to compare upfront.
    • Its security focus is less suited to general OSINT research.
    • Cloud deployment and email or documentation support may not fit every workflow.
  • BuiltWith8.6/10 · Free plan

    A technographic research tool for profiling websites and building technology-based lead lists.

    Visit BuiltWithFull verdict →
  • Censys Attack Surface Management8.2/10 · Pricing on request

    Continuous asset discovery and exposure monitoring for security-focused teams.

    Visit CensysFull verdict →

More comparisons

All OSINT tools comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update