censys.io
Censys
Who runs Censys, what it tracks and what it costs, and the 20 closest threat intelligence alternatives.
- Who’s behind it
- Not stated
- Online since
- Unknown
- Trackers
- Prices
- No pricing page
- Last price change
- –
- Closest alternative
- Shodan
Measured from Censys’s own pages, the Internet Archive and public records. Hover a dotted value for its source and date.
Visit Censys01 · Who’s behind it
Who runs Censys
Censys censys.io
Censys empowers security teams with the most comprehensive, accurate, and up-to-date map of the internet to defend attack surfaces and hunt for threats.
Wikidata: cybersecurity company and search engine
- Company
- No imprint we could read
- Online since
- Not in the Internet Archive
- Audience
- In English
02 · Privacy
What Censys tracks
What the homepage loads before you accept or decline cookies. A cookie banner should hold most of it back until you agree, and a tag manager can load more that we don’t see.
trackers that follow visitors
15 of the 19 alternatives below have fewer, 3 have more.
Privacy-friendly alternatives →- Cookie banner
- None found
- US company
- 4 tools
Marketing and email tracking
Links visits to email campaigns and customer profiles.
Tag manager
Loads further tracking scripts, which we can’t always see.
Third-party embeds
Videos, maps or fonts from other companies, which receive the visitor’s IP address.
03 · Alternatives
Alternatives to Censys
Thumbs up if it’s a real alternative to Censys, thumbs down if it isn’t.
20 of the 60 sites closest to Censys match.
- 01
Shodan Search Engine
Search Engine for the Internet of Things
Very close - 02
Flashpoint | Threat Intelligence With Industry-Best Data
Flashpoint's industry-leading threat intelligence platform is trusted for physical security, fraud prevention, operational intel, and more.
Very close - 03
Group-IB | Prediction-First Cybersecurity and Anti-Fraud
Prediction-First cybersecurity built on collective defense. Group-IB unites cyber and fraud through cyber-fraud fusion to act before attackers and fraudsters complete their next move.
Very close - 04
Feedly Threat Intelligence: Collect, analyze, and share actionable intelligence
Feedly Threat Intelligence is the leading solution to collect, analyze, and share actionable cyber threat intel like vulnerabilities, cyberattacks, threat actors, and IoCs.
Very close - 05
Threat Intelligence & Domain Security Platform | DomainTools
DomainTools provides DNS-based threat intelligence covering 97% of internet infrastructure. Detect, investigate & block malicious domains. Request a demo.
Very close - 06
URL and website scanner - urlscan.io
urlscan.io - Website scanner for suspicious and malicious URLs
Very close - 07
VirusTotal
VirusTotal
Very close - 08
ANY.RUN - Interactive Online Malware Sandbox
Cloud-based malware analysis service. Take your information security to the next level. Analyze suspicious and malicious activities using our innovative tools.
Very close - 09
Cyber Threat Intelligence | Fight Cyber Threats | Intel 471
Get the edge on cybercrime with Intel 471's advanced security solutions. Fight cyber threats with cyber threat intelligence.
Very close - 10
Vulnerability and exposure management | Cloud and AI security | Tenable®
The leader in exposure management and AI security, Tenable cybersecurity solutions reduce cyber risk across IT, OT, cloud, identity & hybrid attack surfaces.
Very close - 11
Next-Gen Digital Risk Protection | AI-powered Cybercrime Defense by Netcraft
Protect your brand with Netcraft's digital risk protection platform. We detect, disrupt and remove phishing, scams and cyber attacks with unmatched scale and effectiveness.
Very close - 12
Managed Security Platform with 24/7 AI SOC | Huntress
Stop cyberattacks with the Huntress Managed Platform. Get 24/7 SOC-backed EDR, ITDR, SIEM, & Security Awareness Training for enterprise-grade protection across all your environments.
Very close - 13
Website Security Monitoring & Malware Protection | SiteLock
Secure your website with our security monitoring and protection services. Protect data, prevent cyberattacks, and ensure peace of mind with SiteLock solutions.
Very close - 14
DTEX | The Risk-Adaptive Security Platform for the Human and AI Enterprise
Only DTEX unifies DLP, behavioral analytics and user activity monitoring with AI to stop insider risks from becoming data breaches.
Very close - 15
Human Risk Management & Advanced Email Security | Mimecast
Protect email and collaboration tools with Mimecast. Manage human risk and stay ahead of cyber threats with advanced security solutions.
Very close - 16
AhnLab
AhnLab delivers an AI-powered cybersecurity platform that connects endpoint, network, cloud, CPS security, XDR, and threat intelligence to help businesses stay secure.
Very close - 17
Sophos: Cyber Resilience for the Agentic AI Era
Sophos Fusion is the industry’s most complete cyber defense system. It sees everything, connects everything, and enables your defenses to respond as one.
Very close - 18
The Shadowserver Foundation
The Shadowserver Foundation is a nonprofit security organization working altruistically behind the scenes to make the Internet more secure for everyone.
Very close - 19
Wiz: AI Cybersecurity for All Your Cloud and AI Applications
Wiz connects code, cloud, and runtime into one agentic cybersecurity platform. Prevent risk, detect threats, and start secure – across every cloud and AI layer.
Very close - 20
NETSCOUT Observability, Cybersecurity, DDoS, & AIOps Solutions
Drive observability, cybersecurity, DDoS protection, and AIOps initiatives with NETSCOUT's AI-ready data platform. Observe and secure your entire network with end-to-end visibility.
Very close
Closest first, by how much each site’s offer resembles Censys’s. Trackers are counted the same way as above. Highlighted technologies are ones Censys uses too. Votes and comments come from visitors and don’t change the order.
04 · History
What changed
Price and policy history →No changes yet. Each new crawl is compared with the last one, and what Censys adds, drops or rewrites shows up here.
05 · Details
How we measure
Alternatives are matched by what sites actually offer, from their homepages, Wikidata and a summary by Claude, in any language. Trackers and the rest of the stack come from the homepage’s code and DNS records.
The full technology stack, the competitor map and search numbers · 24 technologies
- Neighbours
- k = 60
- Sites searched
- 9,221
- Vector
- 384-d
- Query
- 34 ms
Competitor map
Each alternative by how close its vector is to Censys’s (x) and how much traffic it gets, how much of the stack it shares, or where it sits in the embedding space itself (y). Hover for the numbers, click to jump to it in the list.
similarity × popularity
Built with
- CMS
- WordPress page source: /wp-content/
- JavaScript libraries
- jQuery asset https://censys.com/wp-includes/js/jquery/jquery.min.js?ver=3.7.1
- Fonts
- Google Fonts asset https://fonts.googleapis.com/
- Tag managers
- Google Tag Manager page source: googletagmanager.com/ns.html?id=GTM-
- Live chat & support
- Zendesk TXT v=spf1 include:_spf.google.com include:mail.zendesk.com include:sendg…
- CDN
- Cloudflare header cf-ray: a5779d40fef462b8-HAM
- jsDelivr asset https://cdn.jsdelivr.net/npm/swiper@12/swiper-bundle.min.js?ver=12
- Hosting
- WP Engine header x-powered-by: WP Engine
- Languages & backends
- PHP implied by WordPress (page source: /wp-content/)
- Email hosting
- Google Workspace MX aspmx.l.google.com
- Microsoft 365 TXT MS=ms28544701
- Email delivery
- Mailchimp Transactional TXT v=spf1 include:_spf.google.com include:mail.zendesk.com include:sendg…
- SendGrid TXT v=spf1 include:_spf.google.com include:mail.zendesk.com include:sendg…
- DNS hosting
- Google Cloud DNS NS ns-cloud-e3.googledomains.com
- SaaS tools (verified in DNS)
- Adobe TXT adobe-idp-site-verification=95b30abf0fb761095c8b1060d12da2f11e3576800…
- Apple Business TXT apple-domain-verification=nM8bqNQWofKOWUwz
- Atlassian TXT atlassian-domain-verification=4T9gkcNa0K5KMVGlQ3koS4sZ925aIdNUxZ1rUg6…
- Canva TXT canva-site-verification=9HOXHZIWT2PZgIOg5IMIqw
- DocuSign TXT docusign=3ca0a77b-71b9-410f-81f0-8ad68d1bdbbc
- Google Search Console meta google-site-verification: ewTT7I4zDcdTpDAv6WnLfoAhI3CbAai25xh1wZWQOyQ
- Miro TXT miro-verification=ee7e74fe433d7c4173f56b89c9b2205986703937
- Zoom TXT ZOOM_verify_Zxf3OIdKTVWYBJtB4z9SeQ
What competitors use
Across the 20 closest sites.
- Google Search Console 19/20
- Cloudflare 14/20
- Microsoft 365 13/20
- Google Workspace 12/20
- Google Tag Manager 10/20
- Cloudflare DNS · not on censys.io 9/20
- HubSpot 9/20
- Apple Business 8/20
- Atlassian 7/20
- Google Fonts 6/20
- jsDelivr 5/20
- OpenAI · not on censys.io 5/20
- Adobe 5/20
- DocuSign 5/20
- PHP 5/20
- jQuery 4/20