Infoblox vs Tenable Nessus Comparison: Reviews, Features, Pricing & Alternatives in 2026

Detailed side-by-side comparison to help you choose the right solution for your team

Updated Apr 2026 8 min read

Infoblox

0.0 (0 reviews)

Infoblox provides a unified networking and security platform that uses DNS-layer data to protect your organization from cyber threats while simplifying cloud-managed network connectivity and visibility.

Starting at --
Free Trial 30 days
VS

Tenable Nessus

0.0 (0 reviews)

Nessus is a vulnerability assessment solution providing deep-point-in-time scans to identify security flaws, misconfigurations, and malware across your modern IT infrastructure, including cloud, containers, and traditional assets.

Starting at Free
Free Trial 7 days

Quick Comparison

Feature Infoblox Tenable Nessus
Website infoblox.com tenable.com
Pricing Model Custom Freemium
Starting Price Custom Pricing Free
FREE Trial ✓ 30 days free trial ✓ 7 days free trial
Free Plan ✘ No free plan ✓ Has free plan
Product Demo ✓ Request demo here ✓ Request demo here
Deployment saas on-premise saas on-premise desktop
Integrations Splunk ServiceNow Cisco Palo Alto Networks CrowdStrike Microsoft Azure AWS Google Cloud Platform Tenable Qualys ServiceNow Splunk AWS Microsoft Azure Google Cloud Platform Jira Slack IBM QRadar
Target Users mid-market enterprise small-business mid-market enterprise
Target Industries
Customer Count 0 0
Founded Year 1999 2002
Headquarters Santa Clara, USA Columbia, USA

Overview

I

Infoblox

Infoblox provides a centralized platform to manage your critical network services—DNS, DHCP, and IP address management (collectively known as DDI). By moving these services to a unified cloud-managed interface, you eliminate the manual effort of tracking IP addresses in spreadsheets and reduce the risk of network downtime. You can gain full visibility into every device connecting to your network, whether they are in your main office, a remote branch, or a cloud environment.

Beyond connectivity, you can use the platform to turn your DNS into a security asset. It automatically blocks connections to known malicious domains and detects data exfiltration attempts that traditional firewalls often miss. This proactive approach helps you stop threats earlier in the kill chain. The software is designed for mid-to-large organizations that need to maintain high availability and consistent security policies across complex, distributed global infrastructures.

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Tenable Nessus

Nessus helps you identify and fix security vulnerabilities before attackers can exploit them. You can scan your entire environment—including cloud instances, web applications, and traditional network hardware—to find missing patches, software flaws, and configuration errors. It provides a clear view of your attack surface so you can prioritize the most critical risks to your business.

You can choose between different versions depending on your needs, ranging from a free version for educators and students to professional and expert versions for security consultants. It simplifies the complex task of vulnerability assessment with pre-built templates and automated reporting. Whether you are securing a small office or a complex hybrid-cloud environment, you can rely on its extensive plugin library to stay protected against the latest threats.

Overview

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Infoblox Features

  • Unified DDI Management Manage DNS, DHCP, and IP addresses from one console to ensure consistent connectivity across your entire enterprise.
  • BloxOne Threat Defense Protect your devices everywhere by using DNS-level intelligence to block malicious lookups and prevent data theft.
  • Automated IPAM Eliminate manual errors by automatically discovering and tracking every IP address across your physical and cloud networks.
  • Lookalike Domain Detection Identify and block fraudulent domains that mimic your brand to protect your employees from sophisticated phishing attacks.
  • Ecosystem Integration Share real-time security data with your existing tools like SIEMs and SOARs to speed up incident response.
  • Cloud-Native Deployment Deploy network services as microservices in the cloud to scale your infrastructure instantly without adding hardware.
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Tenable Nessus Features

  • Pre-Built Scan Templates. Start scanning immediately using over 450 pre-configured templates for common audits like PCI-DSS and HIPAA compliance.
  • Live Results. Perform offline vulnerability analysis against your scan history to find new threats without running a new scan.
  • Cloud Infrastructure Scanning. Assess your cloud-native assets and identify misconfigurations in AWS, Azure, and Google Cloud environments easily.
  • Customizable Reporting. Create tailored reports in multiple formats like HTML or PDF to share critical security findings with your stakeholders.
  • Web Application Scanning. Identify vulnerabilities in your web applications and APIs to prevent common attacks like SQL injection and cross-site scripting.
  • External Surface Discovery. Find and map your internet-facing assets to understand what an attacker sees when looking at your organization.

Pricing Comparison

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Infoblox Pricing

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Tenable Nessus Pricing

Nessus Essentials
$0
  • Scan up to 16 IP addresses
  • High-speed accurate scanning
  • Community support access
  • Standard vulnerability assessment
  • Free for educators and students

Pros & Cons

M

Infoblox

Pros

  • Extremely reliable DNS and DHCP services for high-uptime environments
  • Centralized visibility across hybrid and multi-cloud infrastructures
  • Powerful automation reduces manual IP management tasks significantly
  • Effective at blocking threats before they reach the network
  • Detailed reporting helps with compliance and audit requirements

Cons

  • Significant learning curve for new administrators
  • Premium pricing makes it expensive for smaller organizations
  • User interface can feel complex and overwhelming initially
A

Tenable Nessus

Pros

  • Extremely high accuracy with very low false-positive rates
  • Massive library of plugins updated daily for new threats
  • Easy to set up and run your first scan quickly
  • Detailed remediation instructions help you fix issues faster

Cons

  • Annual subscription cost is high for small businesses
  • Interface can feel dated compared to newer cloud platforms
  • Reporting customization requires a learning curve to master
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