Features, pricing, ratings, and pros and cons, compared head to head.
Palo Alto Networks Cortex Xpanse is a commercial external attack surface management tool by Palo Alto Networks. PublicWWW is a free external attack surface management tool. Compare features, ratings, integrations, and community reviews side by side to find the best external attack surface management fit for your security stack. Independent and vendor-neutral: we never sell rankings.
Based on our analysis of NIST CSF 2.0 coverage, core features, company size fit, deployment model, here is our conclusion:
Palo Alto Networks Cortex Xpanse
Mid-market and enterprise security teams drowning in unmanaged assets will find Cortex Xpanse's value in its continuous internet-wide scanning of 500 billion ports daily, which surfaces shadow infrastructure and unknown cloud accounts that traditional inventory tools miss. The platform's strength in asset discovery and attribution maps directly to NIST ID.AM compliance, a gap most organizations fail to close. Skip this if you need post-breach forensics or threat hunting; Xpanse is attack surface management, not incident response, and assumes you have remediation workflows ready to act on what it finds.
Security teams hunting for leaked credentials, API keys, or proprietary code snippets in the wild should start with PublicWWW; it's the fastest way to search billions of indexed web pages for specific alphanumeric patterns you actually care about rather than drowning in generic vulnerability feeds. The free tier lets you run unlimited searches without authentication, so you can validate the signal before committing budget. Skip this if you need automated monitoring of your own source code repositories or continuous scanning of your attack surface; PublicWWW is a manual reconnaissance tool, not a backstop for insider threats or CI/CD pipeline leaks.
Active attack surface mgmt solution for discovering & remediating unknown risks
A source code search engine for searching alphanumeric snippets, signatures, or keywords in web page HTML, JS, and CSS code.
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Common questions about comparing Palo Alto Networks Cortex Xpanse vs PublicWWW for your external attack surface management needs.
Palo Alto Networks Cortex Xpanse: Active attack surface mgmt solution for discovering & remediating unknown risks. built by Palo Alto Networks. Core capabilities include Continuous internet-wide scanning of 500B+ ports daily, Automated discovery of unknown and unmanaged assets, Supervised machine learning for attack surface mapping..
PublicWWW: A source code search engine for searching alphanumeric snippets, signatures, or keywords in web page HTML, JS, and CSS code..
Both serve the External Attack Surface Management market but differ in approach, feature depth, and target audience.
Palo Alto Networks Cortex Xpanse and PublicWWW serve similar External Attack Surface Management use cases: both are External Attack Surface Management tools, both cover Reconnaissance. Key differences: Palo Alto Networks Cortex Xpanse is Commercial while PublicWWW is Free. Review the feature comparison above to determine which fits your requirements.
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