What users are saying about
19 Ratings
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Top Rated
126 Ratings
19 Ratings
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Score 8.4 out of 100

PRTG

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Top Rated
126 Ratings
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Score 8.7 out of 100

Likelihood to Recommend

Nessus

Nessus is perfectly suitable for performing comprehensive vulnerability assessment scans being a vulnerability scanner. It is less appropriate for performing penetration testing since it is not a penetration testing tool, it does not have the ability and modules to exploit the vulnerabilities of the system.
Tejas Gandhi | TrustRadius Reviewer

PRTG

PRTG is well suited to any organization that needs to monitor devices and systems on their network. Compared to other products on the market, it is is easy to set up, manage and use on a day-to-day basis.The only place where it would be less appropriate would possibly be an environment where multiple probes were required for geographic purposes and a probe device (ie, a PC) isn't available in each location. This is fairly unlikely, however, but would depend on the network infrastructure.
Anonymous | TrustRadius Reviewer

Feature Rating Comparison

Network Performance Monitoring

Nessus
PRTG
8.4
Automated network device discovery
Nessus
PRTG
8.7
Network monitoring
Nessus
PRTG
9.3
Baseline threshold calculation
Nessus
PRTG
8.3
Alerts
Nessus
PRTG
9.2
Network capacity planning
Nessus
PRTG
7.7
Packet capture analysis
Nessus
PRTG
8.4
Network mapping
Nessus
PRTG
7.6
Customizable reports
Nessus
PRTG
8.1
Wireless infrastructure monitoring
Nessus
PRTG
8.0
Hardware health monitoring
Nessus
PRTG
9.1

Pros

Nessus

  • With Nessus we can find the missing critical patches for a server or workstations.
  • Nessus points out any vulnerable or outdated software Technologies used in the system, thus eliminating any chances for security flaws being turned up.
  • Nessus typically points any configuration level issues in accordance with the OWASP guidelines. Even the configuration of SSL related which are most of the time handled by some vendors or 3rd parties.
  • Nessus not only lists out these Vulnerabilities but describes clearly the vulnerabilities in details with its thousands of plugins updated regularly, the tool also recommends solution with practical details of easy implementation.
Sohail Zende | TrustRadius Reviewer

PRTG

  • Very, very configurable. You can create all kinds of monitors for all kinds of things. Plus it has loads of suggestions out of the box. It can get complicated but monitoring is complicated. Pretty decent interface and good support - active community.
  • I really liked how easy it was to add alerts by SMS. So easy to setup.
  • I like their sizing models (for purchase). We're actually small enough that we are free. But it's not free as in stripped down - it's free because we don't use many "sensors" and don't honestly have the need.
Dan Reynolds | TrustRadius Reviewer

Cons

Nessus

  • Interaction with some other tools like Metasploit.
Omar Israel Sánchez Monroy | TrustRadius Reviewer

PRTG

  • Windows Only: PRTG does not support any other platform. Personally, I do not like tools that run on Windows because Windows requires a frequent update, which means downtime. You want your monitoring tool to be as highly available and low maintenance as possible. That and you also require a server license and Windows consume more hardware resource than other platforms. PRTG needs to add support for Linux.
  • Limited ability to do things in bulk. There is no way I know of to mass onboard devices or to mass edit devices. So you will by modifying 1 device at a time. For instance, it would be useful to modify the name or company of 200 devices in one shot.
  • Somewhat weak widgets and dashboard. If you put a lot of effort into it, you can probably come out with a very useful dashboard to keep an eye on key systems/devices. However, some widgets can look nice at first but they are not so useful or easy to understand. Again, it can be done, but a lot of effort is needed to get it right.
  • White interface only. This might not seem like a big deal, but if you have people who use the tool all the time to keep an eye on the system, it can strain your eyes. Need a dark theme.
Anonymous | TrustRadius Reviewer

Likelihood to Renew

Nessus

Nessus 9.1
Based on 1 answer
Nessus is best and easy to use application for Vulnerabilities finding and reporting, it has multiple platforms and wide scope covering almost all devices for security improvement so far, thus we are very likely to continue its services.
Sohail Zende | TrustRadius Reviewer

PRTG

PRTG 10.0
Based on 2 answers
It is now an essential tool for monitoring and maintaining the health of our network and systems.
Anonymous | TrustRadius Reviewer

Usability

Nessus

Nessus 9.6
Based on 2 answers
It's very much a plug and play application that the user can go into with limited knowledge and set-up scans in minutes.
Anonymous | TrustRadius Reviewer

PRTG

PRTG 9.0
Based on 1 answer
The tool is very intuitive to use and it is Windows-based (everybody knows how to use Windows) so it's easy to get into. Every time is setup in a hierarchy so if you have a good initial hierarchy design, it will really reduce administrative effort down the road.
Anonymous | TrustRadius Reviewer

Support Rating

Nessus

Nessus 7.9
Based on 4 answers
We have never had to contact them. We only contact Tenable when it comes time to renew Nessus.
Anonymous | TrustRadius Reviewer

PRTG

PRTG 8.6
Based on 28 answers
I am giving this a 6 simply because I have never had to contact support. The online documentation is adequate for most things, and the user-maintained knowledgebase is excellent. The few times I have run into issues that were not easily resolvable with intuitive UI, I was able to find the answers that I needed either in the PRTG-provided documentation, the knowledgebase, or with a quick online web search.
Anonymous | TrustRadius Reviewer

Alternatives Considered

Nessus

Tools like Qualys, Rapid7 stack up well against Nessus, but I think Nessus is superior overall when compared to them, given the features it has.
Tejas Gandhi | TrustRadius Reviewer

PRTG

Nagios and Icinga (which is itself a fork from Nagios) are decent enough solutions for free, being open source. They do take more to set up and maintain, with quite a lot of manual work and agent installs in some cases. So in comparison with PRTG, they require more labor, but PRTG requires more capital. I also feel like PRTG is more robust, and stable; it's never crashed or required a complete reinstall, which I've definitely had to do with Icinga in the past.PRTG runs on Windows, while the other two are Linux. That only matters if you're more familiar with one or the other, of course, but it does take more to set up a LAMP server sometimes.
Robert Paul | TrustRadius Reviewer

Return on Investment

Nessus

  • Preventing attacks.
  • Saving the time of deep analysis.
  • Saves money.
Omar Israel Sánchez Monroy | TrustRadius Reviewer

PRTG

  • Given us a nice, controlled, ringed-fence portal to deliver to customers for them to view monitoring on the services we sell them.
  • Given us plenty of metrics to allow us to measure SLA's and OLA's.
  • Given us the tools to deploy proactive measures for service outages.
Jamie Imms | TrustRadius Reviewer

Pricing Details

Nessus

General

Free Trial
Free/Freemium Version
Premium Consulting/Integration Services
Entry-level set up fee?
No

PRTG

General

Free Trial
Free/Freemium Version
Premium Consulting/Integration Services
Entry-level set up fee?
No

Rating Summary

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