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Vulnerability Scanning · Reviewed 27 Oct 2026

Tenable Nessus

Network vulnerability scanner for modern attack surfaces

free tier · tenable.com ↗

Paid against free › Vulnerability Scanning › Tenable Nessus

Tenable Nessus at a glance
1MEstimated total trafficModeled monthly visits16.6KRanking keywordsPublic search sample97/100Technical health15 pages checked0Referring domainsLive backlink summary

Overview

01

Summary

The useful answer before the supporting detail.

Tenable Nessus is a vulnerability scanner designed for modern attack surfaces, helping organizations identify high-risk vulnerabilities. Security teams and consultants use it to run comprehensive scans, compliance checks, and produce detailed reports. Its practical value lies in efficient scanning and risk prioritization, supported by continuous updates from Tenable's Zero Day Research. S14

02

Product identity and positioning

Name, category, positioning, audience, and first-party claims.

  • Identity: Tenable Nessus is a network vulnerability scanner product. S14
  • Core purpose: It solves the problem of identifying high-risk vulnerabilities across an organization's attack surface. S14
  • Intended users: Security teams, vulnerability analysts, and cybersecurity consultants. S14
  • Product scope: Nessus is a standalone scanner, distinct from the broader Tenable One platform. S14 S22
  • Positioning: Tenable positions Nessus as the trusted, comprehensive solution for vulnerability assessment. S14
  • Claimed distinction: Tenable claims Nessus is the industry's most trusted and comprehensive vulnerability scanner. S14
03

Use cases and audiences

Who the product serves and the jobs it is designed to handle.

AudiencePractical use case
Cybersecurity consultantsScour clients' networks for vulnerabilities and create comprehensive reports summarizing security posture with remediation suggestions. S14
Security teamsUse Nessus to quickly identify security issues across the attack surface and close gaps. S14
Vulnerability analystsLeverage Nessus for day-to-day scanning workflows and plugin updates. S14

Features

09

Features and capabilities

Core functions and evidence-backed product capabilities.

CapabilityWhat it does
Vulnerability scanningPerform comprehensive network scans to identify high-risk vulnerabilities. S14
Risk scoringPrioritize vulnerabilities using CVSS v4, EPSS, and VPR scoring. S14
Compliance checksRun built-in configuration, compliance, and security audits. S14
ReportingGenerate and export reports in formats that fit your security process. S14
Live ResultsAutomatically perform offline vulnerability assessments with every plugin update. S14
Remediation guidanceAccess guided workflows and remediation recommendations to close gaps faster. S14
10

Integrations and ecosystem

Connected products, exports, APIs, and workflow compatibility.

Integration or interfaceTypeWhat it enables
Report exportData portabilityExport assessment results in formats that fit your security process. S14
Plugin databaseExtension frameworkRegular plugin updates expand scanning capabilities and coverage. S14
Security CenterIntegrationIntegrates with Tenable Security Center for broader vulnerability management. S145 S147

Pricing

11

Pricing and plans

Published plans, free access, trials, credits, and pricing limitations.

Plan or offerVerified price and billingIncludedLimits
Nessus Professional, 1 year$4,790 per year, annual billingUnlimited assessmentsAdvanced Support $400 extra; On-Demand Training $275 extra S29
Nessus Professional, 2 years$9,331, two-year term paid up frontUnlimited assessmentsSaves $249 vs two one-year licences S29
Nessus Professional, 3 years$13,638, three-year term paid up frontUnlimited assessmentsSaves $732 vs three one-year licences S29
Nessus Expert, 1 year$6,790 per year, annual billingNot establishedListed; 2-year $13,208.13, 3-year $19,304.19 S29
Free trialFree trial offeredTry for free S14Length not stated S29

Competition

12

Competitive landscape

Domains competing for the same organic search demand.

Sampled competitors

CompetitorFirst-page appearancesSampled queriesAverage positionQueries observed
llm-stats.com215.514.5 / 4
reddit.com225.514.5 / 4, 10.4 2
tuttotech.net11114.5 / 4
github.com11214.5 / 4
university-365.com11314.5 / 4
applevis.com11310.4 2
jp.tenable.com11410.4 2
kobonemi.com11514.5 / 4
wired.com11510.4 2
youtube.com11614.5 / 4

Website intelligence — Collected evidence

Customers, testimonials, and first-party review claims

No supporting public-page evidence was collected for this category.

Independent review sources discovered

No links to supported independent review platforms were discovered on the collected pages.

13

AI visibility

Measured ChatGPT and Google AI mentions with cited sources.

AI-assistant referral traffic

  • Estimated current generative-AI referral share: 2.1%
MonthSource
—All AI assistants
—All AI assistants
—All AI assistants

Website intelligence — Collected evidence

Site-stated AI capabilities

Page typeEvidenceSource
trustThe leader in exposure management and AI security, Tenable cybersecurity solutions reduce cyber risk across IT, OT, cloud, identity & hybrid attack surfaces.https://www.tenable.com/
featuresThe world’s leading AI-powered exposure management platform.https://www.tenable.com/section-508-voluntary-product-accessibility
featuresSee, secure, and manage how your teams use AI tools.https://www.tenable.com/section-508-voluntary-product-accessibility
featuresOrganizations face an overwhelming number of vulnerabilities, making it difficult to prioritize what to fix first, and traditional risk-scoring methods often lack the necessary contextual intelligence. Discover how Tenable's Vulnerability Priority Rating (VPR) fundamentally transforms vulnerability management by leveraging patented hybrid AI models and a broad spectrum of threat intelligence to identify the top 1.6% of vulnerabilities most likely to be exploited, resulting in 2x efficiency by focusing your teams on the exposures that truly matter. Recent enhancements to VPR also include AI-driven context-rich threat summaries and prescriptive remediation guidance.https://www.tenable.com/solution-briefs/enhancements-to-tenable-vulnerability-priority-rating-vpr
featuresThe world’s leading AI-powered exposure management platform.https://www.tenable.com/solution-briefs/enhancements-to-tenable-vulnerability-priority-rating-vpr
featuresThe world’s leading AI-powered exposure management platform.https://www.tenable.com/solution-briefs/tenable-ot-security-active-querying
featuresSee how Tenable can give your team the clarity to fix what matters, at the speed of AI.https://www.tenable.com/solutions/active-directory
featuresThe world’s leading AI-powered exposure management platform.https://www.tenable.com/solutions/active-directory
featuresAI Security](/products/ai-exposure)[https://www.tenable.com/section-508-voluntary-product-accessibility
featuresHexa AI](/products/tenable-one/capabilities/hexa-ai)https://www.tenable.com/section-508-voluntary-product-accessibility
features](/solutions/ai-security)[https://www.tenable.com/section-508-voluntary-product-accessibility
featuresAI Security](/products/ai-exposure)[https://www.tenable.com/capabilities/vulnerability-priority-rating
featuresHexa AI](/products/tenable-one/capabilities/hexa-ai)https://www.tenable.com/capabilities/vulnerability-priority-rating
features](/solutions/ai-security)[https://www.tenable.com/capabilities/vulnerability-priority-rating
featuresAI Security](/products/ai-exposure)[https://www.tenable.com/solution-briefs/enhancements-to-tenable-vulnerability-priority-rating-vpr
featuresHexa AI](/products/tenable-one/capabilities/hexa-ai)https://www.tenable.com/solution-briefs/enhancements-to-tenable-vulnerability-priority-rating-vpr
features](/solutions/ai-security)[https://www.tenable.com/solution-briefs/enhancements-to-tenable-vulnerability-priority-rating-vpr
pricingFrom CNAPP, CIEM, and vulnerability management to DSPM, AI-SPM, and beyond, Tenable’s asset-based pricing can flex and scale as your business needs change. And, with volume-based discounts, you can secure your cloud resources and manage cloud risk without worrying about unexpected or hidden fees. Tenable One Cloud Exposure pricing is based on the number of billable resources running in your cloud.https://www.tenable.com/cloud-security/pricing

These are first-party product claims, not independent measurements of AI-search visibility.

14

Marketing opportunities

Actions calculated directly from the collected evidence.

OpportunityRecommended actionEvidence
Competitor gapReview the sampled queries where llm-stats.com appears.2 first-page appearances across 14.5 / 4

Website intelligence — Collected evidence

Website evidence gaps

  • integrations: no usable public page was collected; verify whether the site publishes this evidence.
  • customers: no usable public page was collected; verify whether the site publishes this evidence.
  • reviews: no usable public page was collected; verify whether the site publishes this evidence.
  • changes: no usable public page was collected; verify whether the site publishes this evidence.
  • identity: no usable public page was collected; verify whether the site publishes this evidence.
  • technical: no usable public page was collected; verify whether the site publishes this evidence.

Trust and proof

15

Customers, proof, and reviews

Published proof, customer signals, and review evidence.

Independent reviews

PlatformPageHow it was foundNote
Beagle SecurityTenable review: Is it the right tool for you?Grounded web search/ Rating / / --- / --- / / Tenable WAS / 4.5/5 (based on 21 reviews on Gartner) / / Tenable Vulnerability Management / 4.5/5 (based on 122 reviews on G2) / / Tenable Cloud Security / 4.6/5 (based on 37 reviews on G2) / As of the latest data on May 2026
PeerSpotTenable Vulnerability Management reviews 2026Grounded web search# Tenable Vulnerability Management Reviews Vendor: Tenable 4.1 out of 5 - 47 reviews - 92% willing to recommend ... Management faces challenges with user-friendliness, dashboard customization, and integration capabilities. Reporting features require
G2Compare Dynatrace and Tenable Vulnerability ManagementGrounded web searchresponse Tenable Vulnerability Management(110)4.5 out of 5Tenable Vulnerability Management By Tenable Try for free Optimized for quick response ... Vulnerability Management Star Rating (110) 4.5 out of 5 Market Segments Enterprise (57.0% of
comparisec.comTenable Cloud Security Review - Cloud Security Posture ManagementGrounded web searchG2 4.5 96 Gartner 4.3 74 ... Vulnerability Management, this creates a genuinely unified risk picture spanning infrastructure, identity ... requires stitching together multiple vendors otherwise. The compliance reporting depth, inherited from
gartner.comVulnerability Assessment Reviews and RatingsGrounded web searchTenable Vulnerability Management provides a risk-based approach to identifying, prioritizing, and remediating vulnerabilities across your entire attack surface ... -driven analytics, it goes beyond CVSS scores to assess exploitability, asset criticality,
tenable.comTenable Named 2025 Gartner Customers’ Choice for CNAPP / Tenable®Grounded web searchTenable® Holdings, Inc. (NASDAQ: TENB), the exposure management company, today announced it has been recognized as one of only two vendors recognized as a 2025 Customers’ Choice in the Gartner Peer Insights™ ‘Voice of the Customer’: Cloud-Native Application Protection Platforms (CNAPPs). Based solely on end-user reviews, Tenable credits this Customers' Choice distinction to its strong customer advocacy and satisfaction, with a 4.8 out of 5 overall rating and 88% willingness to recommend based on
tenable.com2025 Gartner® Peer Insights™ Customers’ Choice for Vulnerability Assessment - Analyst Research / Tenable®Grounded web searchIn the July 2025 Voice of Customer Report, Gartner Peer Insights synthesizes reviews of vulnerability assessment solutions for the past 18 months into insights for IT decision makers. ... - An analysis of 1,090 reviews and ratings in the vulnerability assessment market from an 18-month period ending April 30, 2025 - Ratings for 9 vendors based on overall score for easy comparison - Information about how satisfied existing customers are with a vendor’s product, including product capabilities, neg
couponsscout.comTenable Review (2026): Pros, Cons and Verdict - Coupons ScoutGrounded web searchsummed it up perfectly: “Calling Tenable One a ‘unified platform’ is a marketing stretch. It’s just a portal with links to the other portals… It’s powerful, but good luck finding anything” G2 Tenable.io Reviews.
aws.amazon.comAWS Marketplace: Tenable Cloud Security Private Offer Only ReviewsGrounded web search### Reviews from AWS customer 7 AWS reviews - 5 star 2 - 4 star 4 - 3 star 1 - 2 star 0 - 1 star 0 ... July 21, 2024 - Review provided by G2 ... As a DevOps engineer, it makes my life easier when I use Tenable Cloud Security

Customer proof

Proof typeNamed customer or sourceEvidence
Case studyBernalillo Countycustomer case study — ## Bernalillo County Bernalillo County leverages Tenable One to consolidate exposure management and automate routine maintenance across its public sector infrastructure. (Customers / Tenable®)

External links were grounded in one live web search. Search snippets are leads, not independently scraped page content; rejected links remain available in Review evidence.

16

Company, security, and trust

Ownership, policies, security signals, and public trust evidence.

SignalFindingSource
Company and ownershipExposure Management Leadership Councilsource
Contact and supportNot published on the collected pages.—
Legal and privacyNot published on the collected pages.—
Security and complianceNot published on the collected pages.—
Uptime and status pageNot published on the collected pages.—
Domain registered1997-04-10—
Domain expires2028-04-11—

Not found on the collected pages: contact and support, legal and privacy, security and compliance, uptime and status page. This only means Scout did not find it on the pages it read; it says nothing about the company itself.

17

Documentation and product updates

Help resources, product guidance, and visible changes over time.

Resource or updateTypeWhat is availableDate or freshness
Nessus 3.2.1 Released -- New Report Filtering Features Added - Blog / Tenable®Product updateProduct update is publicly available. (source)Not dated
Nessus 3.2.1 Released -- New Report Filtering Features Added - Blog / Tenable®Release notesPublic product change history. (source)Not dated
New Nessus Configuration Auditing Features for Windows Servers - Blog / Tenable®Product updateProduct update is publicly available. (source)Not dated

Not found in the collected public sources: public roadmap, status page, separate help center or knowledge base.

Technical

18

Technical and delivery signals

Delivery model, platforms, API, data ownership, reliability claims and release activity.

SignalFindingSource
Delivery model (cloud, self-hosted, desktop, browser extension)Nessus is available as a Windows and Linux client, indicating on-premises deployment.S147
Platforms and appsNessus client available for Windows and Linux.S147
API and extensibility (API, SDK, webhooks, MCP, plugins)Dynamically compiled plugins increase scan performance and efficiency.S14
Data ownership and exportReports can be exported in formats like .html, .nsr, or .nbe.S140
Performance and reliability claimsDynamically compiled plugins increase scan performance and efficiency.S14
Release activityNessus 3.2.1 was released with new report filtering features.S140
19

Measured infrastructure

Domain, certificate, and hosting signals, measured directly.

SignalFinding
Domain registered1997-04-10 — Amazon Registrar, Inc.
Domain expires2028-04-11
First archived1999-11-11 — web archive
TLS certificateAmazon, valid, expires 2027-04-14
Security headersHSTS, CSP, X-Content-Type-Options
Headers not servedX-Frame-Options, Referrer-Policy
Server headercloudflare
Mail handled byus-smtp-inbound-1.mimecast.com, us-smtp-inbound-2.mimecast.com
Nameserversns3.tenablesecurity.com, ns1.tenablesecurity.com
20

Technical site audit

A bounded multi-page crawl with page-level issues and URLs.

Scout — Bounded technical crawl

  • Pages crawled: 15 of 15 maximum
  • Technical health: 97/100
  • Critical issues: 0
  • Warnings: 6
  • Notices: 10

Issues

SeverityIssueValueAffected URL
warningTitle length should be reviewed72https://www.tenable.com/
noticeImages are missing alt text4https://www.tenable.com/
warningTitle length should be reviewed72https://www.tenable.com/
noticeImages are missing alt text4https://www.tenable.com/
noticeImages are missing alt text1https://www.tenable.com/products/tenable-one
noticeImages are missing alt text1https://www.tenable.com/cyberagents-exchange
noticeMeta description length should be reviewed297https://www.tenable.com/products/ai-exposure
noticeMeta description length should be reviewed228https://www.tenable.com/cloud-security/products/cnapp
noticeMeta description length should be reviewed173https://www.tenable.com/products/ot-security
noticeMeta description length should be reviewed180https://www.tenable.com/products/vulnerability-management
noticeMeta description length should be reviewed229https://www.tenable.com/products/identity-exposure
noticeMeta description length should be reviewed236https://www.tenable.com/products/patch-management
warningDuplicate title in audit sample2https://www.tenable.com/
warningDuplicate title in audit sample2https://www.tenable.com/
warningDuplicate meta description in audit sample2https://www.tenable.com/
warningDuplicate meta description in audit sample2https://www.tenable.com/

Crawled pages

StatusTitleH1sWordsResponseURL
200Vulnerability and exposure management \Cloud and AI security \Tenable®12871
200Vulnerability and exposure management \Cloud and AI security \Tenable®12871
200Tenable One exposure management platform \Tenable®14065125 ms
200Tenable One Pricing \Tenable®12751167 ms
200Contact Tenable \Tenable®1250638 ms
200CyberAgents Exchange \AI Agents for Cybersecurity \Tenable®12874
200Tenable and Nessus Pricing & Purchase Options \Tenable®12614112 ms
200Try Tenable exposure management solutions \Tenable®1291923 ms
200Tenable One AI Exposure \Tenable®12947122 ms
200Tenable One Cloud Exposure Management (CNAPP) \Tenable®1361644 ms
200Tenable One OT Exposure \Tenable®1312538 ms
200Tenable One Vulnerability Management \Tenable®1389331 ms
200Tenable Hexa AI: Agentic AI for Exposure Management \Tenable®12996131 ms
200Tenable One Identity Exposure \Tenable®13128106 ms
200Tenable Patch Management \Tenable®12995120 ms

This is a bounded Scout crawl. Core Web Vitals and Lighthouse scores are not claimed unless a dedicated performance audit is connected.

21

Search Console and Analytics

First-party search and behavioral data connection state.

Modeled acquisition channels

ChannelEstimated share
direct50.1%
search32.5%
search organic31.1%
search paid1.4%
social3.2%
social organic3.1%
social paid0.2%
referrals9.3%
paid referrals1.5%
mail1.3%
gen ai2.1%
affiliate0.0%
other0.0%

First-party connections

IntegrationStatusData available after connection
Google Search ConsoleNot connectedClicks, impressions, CTR, average position, queries, pages, countries, and devices
Google AnalyticsNot connectedOrganic sessions, engagement, landing pages, conversions, geography, and devices

No first-party Search Console or Analytics numbers are shown until the site owner authorizes the corresponding Google account. Scout traffic model values above are modeled estimates, not private analytics totals.

Limits and method

22

Limitations and open questions

Known constraints and missing evidence from the collected pages.

The collected evidence does not mention any competitors by name. Evidence gaps include lack of specific feature details beyond scanning, compliance, and reporting; no information on customer testimonials or case studies; and no details on the free trial length or specific limitations.

23

Sources, method, and limitations

Evidence inventory, collection method, provider use, and constraints.

This report is based on 15 collected pages from tenable.com, including product pages, pricing pages, and blog posts, captured on 2026-10-23. The evidence catalog includes 180 items, with page types ranging from product overviews to pricing and blog content. External proof search was enabled but did not verify any additional sources. All claims are derived from the catalog and cited accordingly.

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