censys.com

Censys

Who runs Censys, what it tracks and what it costs, and the 20 closest internet intelligence / attack surface management 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.

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Visit Censys

01 · Who’s behind it

Who runs Censys

Censys censys.com

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.

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.

Fewer trackers than CensysNo ad trackersRegistered in the EUFree planOnly in English
  1. 01
    Shodan shodan.io Top 10K English No trackers

    Shodan Search Engine

    Search Engine for the Internet of Things

    Compare Shodan with Censys →
  2. 02
    Fofa网络空间测绘系统 fofa.info Chinese No trackers

    网络空间测绘,网络空间安全搜索引擎,网络空间搜索引擎,安全态势感知 - FOFA网络空间测绘系统

    FOFA 是白帽汇推出的一款网络空间搜索引擎,它通过进行网络空间测绘,能够帮助研究人员或者企业迅速进行网络资产匹配,例如进行漏洞影响范围分析、应用分布统计、应用流行度排名统计等。

    Compare Fofa网络空间测绘系统 with Censys →
  3. 03
    GreyNoise greynoise.io English 4 trackers

    GreyNoise | Real-Time Network Threat Intelligence

    The network edge is your blind spot. GreyNoise delivers real-time threat intelligence to detect active exploitation, uncover compromised devices, and investigate attacks as they happen.

    Compare GreyNoise with Censys →
  4. 04
    cymru.com Top 10K English 6 trackers

    Real-Time Threat Intelligence With Unmatched Internet Visibility

    Scanners and feeds see the edge. Team Cymru, the threat intelligence company trusted by 1,000+ partners, sees adversary infrastructure as it forms.

    Compare cymru.com with Censys →
  5. 05
    Group-IB group-ib.com English 2 trackers

    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.

    Compare Group-IB with Censys →
  6. 06
    ANY.RUN any.run English 1 tracker

    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.

    Compare ANY.RUN with Censys →
  7. 07
    Qualys qualys.com Top 10K 1 tracker

    Enterprise Cyber Risk and Security Platform | Qualys

    Discover how Qualys helps your business measure & eliminate cyber threats through a host of cybersecurity detection & remediation tools. Try it today!

    Compare Qualys with Censys →
  8. 08
    Flashpoint flashpoint.io English 2 trackers

    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.

    Compare Flashpoint with Censys →
  9. 09
    DomainTools domaintools.com Top 10K English 2 trackers

    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.

    Compare DomainTools with Censys →
  10. 10
    VirusTotal virustotal.com Top 10K English 2 trackers

    VirusTotal

    VirusTotal

    Compare VirusTotal with Censys →
  11. 11
    Recorded Future recordedfuture.com 1 tracker

    Advanced Cyber Threat Intelligence | Recorded Future

    Get real-time, actionable cyber threat intelligence with Recorded Future. Mitigate cyber risks, prioritize threats, and proactively secure your organization.

    Compare Recorded Future with Censys →
  12. 12
    Feedly feedly.com Top 10K English No trackers

    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.

    Compare Feedly with Censys →
  13. 13
    Silent Push silentpush.com English 3 trackers

    Silent Push | Preemptive Cyber Defense Platform

    Expose pre-weaponized adversary infrastructure with Indicators of Future Attack®.

    Compare Silent Push with Censys →
  14. 14
    Tenable® tenable.com Top 10K English 2 trackers

    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.

    Compare Tenable® with Censys →
  15. 15
    urlscan urlscan.io English 1 tracker

    URL and website scanner - urlscan.io

    urlscan.io - Website scanner for suspicious and malicious URLs

    Compare urlscan with Censys →
  16. 16
    Netcraft netcraft.com English 1 tracker

    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.

    Compare Netcraft with Censys →
  17. 17
    DTEX dtexsystems.com English 1 tracker

    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.

    Compare DTEX with Censys →
  18. 18
    Sucuri sucuri.net English 4 trackers

    Sucuri - Complete Website Security, Protection & Monitoring

    Website security made simple—Sucuri offers fast malware cleanup, reliable monitoring, and powerful protection for any CMS.

    Compare Sucuri with Censys →
  19. 19
    Huntress huntress.com English 2 trackers

    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.

    Compare Huntress with Censys →
  20. 20
    SentinelOne sentinelone.com

    American cybersecurity company

    Compare SentinelOne with Censys →

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

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 · 25 technologies
Neighbours
k = 20
Sites searched
9,192
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

VirusTotalDomainToolsFlashpointQualysANY.RUNGroup-IBcymru.comGreyNoiseFofa网络空间测绘系统Shodan

Built with

CMS
JavaScript libraries
  • jQuery asset https://censys.com/wp-includes/js/jquery/jquery.min.js?ver=3.7.1
Fonts
Tag managers
Marketing automation
  • HubSpot page source: js.hsforms.net
  • Marketo page source: munchkin.marketo.net
Payments
  • Stripe TXT stripe-verification=70b8908605af5f65c34d05d2b6dcb86bd3fd3a4c72d1b3799…
CDN
  • Cloudflare header cf-ray: a577d3677fec62bf-HAM
  • jsDelivr asset https://cdn.jsdelivr.net/npm/swiper@12/swiper-bundle.min.js?ver=12
Hosting
Languages & backends
  • PHP implied by WordPress (page source: /wp-content/)
Email hosting
Email delivery
  • SendGrid TXT v=spf1 include:_spf.google.com include:sendgrid.net include:50081908.…
DNS hosting
SaaS tools (verified in DNS)
  • Adobe TXT adobe-idp-site-verification=95b30abf0fb761095c8b1060d12da2f11e3576800…
  • Apple Business TXT apple-domain-verification=52PvbfuZ56s1qvs2
  • Atlassian TXT v=spf1 include:_spf.google.com include:sendgrid.net include:50081908.…
  • Canva TXT canva-site-verification=ix-SCidQv5-m4AAPHWdevg
  • DocuSign TXT docusign=8cb32df3-18c8-45a8-9c29-640114d86061
  • Google Search Console meta google-site-verification: ewTT7I4zDcdTpDAv6WnLfoAhI3CbAai25xh1wZWQOyQ
  • Miro TXT miro-verification=ee7e74fe433d7c4173f56b89c9b2205986703937
  • OpenAI TXT openai-domain-verification=dv-2dhIrgpoeOXZgS3nesnLu3un
  • Slack TXT slack-domain-verification=VnoC7Jfdx5on8oW4PGCI3Yy6TnewlfzSyI3c6uYI
  • Zoom TXT ZOOM_verify_XeZbYZtZxHgmt098wBKqKX