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    Overview
    ProductRatingMost Used ByProduct SummaryStarting Price

    Paessler PRTG

    Score8.4 out of 10
    N/APRTG Network Monitor is the flagship offering from German software company Paessler, for monitoring local and wide area networks (LANs & WANs), servers, websites, apps, and more.

    $2,149

    per year

    Zscaler Internet Access

    Score8.9 out of 10
    N/AZscaler Internet Access™ (ZIA) is a secure web gateway (SWG), delivering cloud native cyberthreat protection and zero trust access to the internet and SaaS apps.N/A
    Pricing
    Paessler PRTGZscaler Internet Access
    Editions & Modules
    PRTG 500
    $2,149
    per year
    Hosted 500
    $2,149
    per year
    PRTG 1,000
    $3,899
    per year
    Hosted 1000
    $3,899
    per year
    PRTG 2,500
    $8,099
    per year
    Hosted 2500
    $8,099
    per year
    PRTG 5,000
    $14,199
    per year
    Hosted 5000
    $14,199
    per year
    PRTG 10000
    $17,899
    per year
    PRTG Enterprise
    Custom Pricing
    subscription license
    No answers on this topic
    Offerings
    Pricing Offerings
    Paessler PRTGZscaler Internet Access
    Free Trial
    YesNo
    Free/Freemium Version
    NoNo
    Premium Consulting/Integration Services
    YesYes
    Entry-level Setup FeeNo setup feeNo setup fee
    Additional Details——
    More Pricing Information
    Community Pulse
    Paessler PRTGZscaler Internet Access
    Considered Both Products
    Paessler
    No answer on this topic
    Zscaler
    No answer on this topic
    Key User Insights
    Would buy again
    98%
    Would buy again
    41 Answers
    99%
    Would buy again
    284 Answers
    Delivers good value for the price
    98%
    Delivers good value for the price
    40 Answers
    98%
    Delivers good value for the price
    245 Answers
    Happy with the feature set
    100%
    Happy with the feature set
    42 Answers
    99%
    Happy with the feature set
    284 Answers
    Lived up to sales and marketing promises
    93%
    Lived up to sales and marketing promises
    28 Answers
    97%
    Lived up to sales and marketing promises
    207 Answers
    Implementation went as expected
    100%
    Implementation went as expected
    38 Answers
    93%
    Implementation went as expected
    227 Answers
    Features
    Paessler PRTGZscaler Internet Access
    Network Performance Monitoring
    Comparison of Network Performance Monitoring features of Paessler PRTG and Zscaler Internet Access
    Feature
    Paessler PRTG
    7.3
    67 Ratings
    8% below category average
    Zscaler Internet Access
    -
    Ratings
    Automated network device discovery7.260 Ratings00 Ratings
    Network monitoring9.666 Ratings00 Ratings
    Baseline threshold calculation8.557 Ratings00 Ratings
    Alerts8.867 Ratings00 Ratings
    Network capacity planning6.448 Ratings00 Ratings
    Packet capture analysis6.234 Ratings00 Ratings
    Network mapping5.547 Ratings00 Ratings
    Customizable reports5.857 Ratings00 Ratings
    Wireless infrastructure monitoring6.249 Ratings00 Ratings
    Hardware health monitoring9.264 Ratings00 Ratings
    Identity Management
    Comparison of Identity Management features of Paessler PRTG and Zscaler Internet Access
    Feature
    Paessler PRTG
    -
    Ratings
    Zscaler Internet Access
    5.0
    2 Ratings
    55% below category average
    Multi-Factor Authentication00 Ratings5.02 Ratings
    Endpoint Security
    Comparison of Endpoint Security features of Paessler PRTG and Zscaler Internet Access
    Feature
    Paessler PRTG
    -
    Ratings
    Zscaler Internet Access
    10.0
    2 Ratings
    11% above category average
    Endpoint Detection and Response (EDR)00 Ratings10.02 Ratings
    Threat Intelligence
    Comparison of Threat Intelligence features of Paessler PRTG and Zscaler Internet Access
    Feature
    Paessler PRTG
    -
    Ratings
    Zscaler Internet Access
    8.5
    216 Ratings
    7% above category average
    Network Analytics00 Ratings8.7217 Ratings
    Threat Recognition00 Ratings8.3214 Ratings
    Vulnerability Classification00 Ratings8.5191 Ratings
    Automated Alerts and Reporting00 Ratings8.2205 Ratings
    Threat Analysis00 Ratings8.8203 Ratings
    Threat Intelligence Reporting00 Ratings8.5199 Ratings
    Automated Threat Identification00 Ratings8.5192 Ratings
    Zero Trust Security
    Comparison of Zero Trust Security features of Paessler PRTG and Zscaler Internet Access
    Feature
    Paessler PRTG
    -
    Ratings
    Zscaler Internet Access
    8.9
    262 Ratings
    4% above category average
    Continuous Verification00 Ratings8.7245 Ratings
    Secure Web Gateways00 Ratings9.0236 Ratings
    Network Flow Control00 Ratings8.1217 Ratings
    Network Traffic Analysis00 Ratings8.8219 Ratings
    Segmentation Leveraging00 Ratings8.6194 Ratings
    Admin Access Control00 Ratings9.1230 Ratings
    Network Data Encryption00 Ratings8.8207 Ratings
    Network Topology Mapping00 Ratings10.02 Ratings
    Best Alternatives
    Paessler PRTGZscaler Internet Access
    Small Businesses
    Auvik
    Score8.8 out of 10
    No answers on this topic
    Medium-sized Companies
    PingPlotter
    Score9 out of 10
    No answers on this topic
    Enterprises
    Nmap
    Score8.7 out of 10
    Forescout Vistaro Platform
    Score6.6 out of 10
    All AlternativesView all alternativesView all alternatives
    User Ratings
    Paessler PRTGZscaler Internet Access
    Likelihood to Recommend
    8.8
    (68 ratings)
    9.0
    (295 ratings)
    Likelihood to Renew
    9.9
    (5 ratings)
    8.4
    (6 ratings)
    Usability
    8.3
    (7 ratings)
    8.8
    (279 ratings)
    Availability
    -
    (0 ratings)
    7.3
    (1 ratings)
    Performance
    -
    (0 ratings)
    5.5
    (1 ratings)
    Support Rating
    8.0
    (19 ratings)
    7.1
    (10 ratings)
    Online Training
    -
    (0 ratings)
    7.3
    (1 ratings)
    Implementation Rating
    9.0
    (2 ratings)
    8.4
    (2 ratings)
    Configurability
    -
    (0 ratings)
    8.4
    (2 ratings)
    Product Scalability
    -
    (0 ratings)
    7.3
    (1 ratings)
    Vendor post-sale
    -
    (0 ratings)
    8.4
    (3 ratings)
    Vendor pre-sale
    -
    (0 ratings)
    7.3
    (2 ratings)
    User Testimonials
    Paessler PRTGZscaler Internet Access
    Likelihood to Recommend
    Paessler
    integrates seamlessly with Windows servers via WMI and PowerShell, providing deep insights into resource usage, performance metrics, and system health. It's excellent at tracking CPU, memory, disk space, and event logs, enabling rapid troubleshooting and proactive maintenance. PRTG Network Monitor also effectively monitors Fortigate devices, providing detailed data on firewall health, traffic patterns, bandwidth utilization, VPN status, and security alerts. This visibility helps detect and resolve network security issues promptly.
    Incentivized
    Read full review
    Zscaler
    I feel the product is very good to set up basic standards and go beyond that in many aspects. However, due to being sometimes too simple, it limits the ability to do some other complex changes. Having the ability to do both would be ideal for some, if not all, of the products within Zscaler Internet Access. A simple setup to have it stand-up, and more advanced settings for those more experienced.
    Incentivized
    Read full review
    Pros
    Paessler
    • Switch monitoring and finding out if there are communication issues or throughput alerts are reached
    • Big picture view of the whole infrastructure and what is functioning and what is not
    • Uptime tracking is great and lets us know for how long a device is down or overall uptime
    Incentivized
    Read full review
    Zscaler
    • Provides a secure VPN connection point for endpoint connectivity.
    • Provides the VPN connectivity in a fast and reliable connection state.
    • Very dependable, once connected the connection stays up and there's no fuss.
    • Very good at letting you know when you are not authenticated.
    • Very easy to authenticate and regain access when your session times out.
    Incentivized
    Read full review
    Cons
    Paessler
    • Licensing on a per entity basis can be cumbersome for devices which have a ton of monitoring points like network switches\routers. Each sensor may count against a license, which could be a lot of you were monitoring every TX\RX of an SFP for example
    • A better method to easily template\copy monitors across devices
    • The navigation in the web GUI could be a little more straightforward in terms of the hierarchy
    Incentivized
    Read full review
    Zscaler
    • ZS CLI support to turn off ZIA and ZDX service specifically on mac.
    • Better visibility into failed posture devices, including a timeline and the reason the posture failed (This is about the Zscaler mobile portal: Enrolled devices --> Failed posture devices).
    Incentivized
    Read full review
    Likelihood to Renew
    Paessler
    I would renew it because the platform has brought us many technical and economic benefits that make the cost-benefit ratio very good. Additionally, to do so does not require large investments in training, licensing or infrastructure, and at the administration level, extensive knowledge is not required to be able to bear it.
    Incentivized
    Read full review
    Zscaler
    While Zscaler Internet Access (ZIA) delivers critical value in cloud security and RBI compliance, I rate renewal likelihood 7/10 due to evolving needs versus platform limitations. Below is my rationale:
    Key Gaps:
    1. Advanced Threat Costs:
    ZIA’s add-ons (e.g., Advanced DLP, Sandboxing) incur 35%+ cost premiums – straining budgets as transaction volumes (UPI/iMobile) grow 50% YoY.
    2. API Banking Scalability:
    ZIA’s API rate limits throttle real-time policy sync during UPI peaks (10K+ TPS), forcing workarounds for finacle integrations.
    3. RBI Future-Proofing:
    Limited native support for upcoming digital rupee (CBDC) security rules requires custom development, increasing compliance overhead.
    Incentivized
    Read full review
    Usability
    Paessler
    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.
    Incentivized
    Read full review
    Zscaler
    Getting started was pretty straightforward. We can tell the product is way more robust than we are using it. It started as a replacement for previous DNS-blocking content filtering, but we're exploring how this will add value with an upcoming DLP redesign and with traffic optimization at some of our remote sites with severe bandwidth limits.
    Incentivized
    Read full review
    Performance
    Paessler
    No answers on this topic
    Zscaler
    There are often performance issues reported
    Incentivized
    Read full review
    Support Rating
    Paessler
    PRTG does everything we need it to do and more. Ease of use, ease of management and maintenance and clarity of monitoring of hundreds of different types of device and service gives this a large advantage over other products on the market that I have tried. I would definitely recommend it to anyone who needs a network monitoring product in their environment and even to people who don't know they need a solution yet!
    Incentivized
    Read full review
    Zscaler
    Zscaler's ZIA support is quick and knowledgable. They respond within 1-2 hours of you submitting your ticket. They are very thorough and are typically ready to jump on a live troubleshooting session. Our ZIA platform and how we use is it unique so at times tickets can be open for weeks but we alway get quality support compared to other unrelated product support in our enterprise
    Incentivized
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    Implementation Rating
    Paessler
    It's very important that de project's teams have different member of the TI. We have learned too late the importa of Security Analyst at the design architecture moment. We have to rebuild part of the implementation for made this big mistake.
    Incentivized
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    Zscaler
    good the engineer give excellent support and eplanation
    Incentivized
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    Alternatives Considered
    Paessler
    PRTG offers more versatility in monitoring when compared to the other solutions we tested. The other solutions were also limited as far as customization options, which made them less adaptable to our networks. When compared to Auvik, for instance, we prefer PRTG as it offers immediate notifications through the desktop client - not limited to email notifications as with Auvik. We also appreciate the fact that PRTG can be self/on-prem hosted vs Auvik's cloud model. This makes for an easier deployment and less firewall adjustments to allow traffic to cloud-hosted solutions.
    Incentivized
    Read full review
    Zscaler
    The overall user community and scope of supportability outweighed the others on our short list. Netskope was a close second, but the risk, though small, was greater than that of bringing Zscaler aboard. We were looking for a mature, well-supported, highly functional, and fine-grained solution that met all our user and information security requirements.
    Incentivized
    Read full review
    Return on Investment
    Paessler
    • The ability to analyze multiple pieces of information in one place, especially with historical data, has saved our IT department time and headaches. It would be so much more difficult to trace an issue without PRTG, just relying on event logs and an open task manager window.
    • The cost is not cheap, so it's an expense that hits the bottom line like everything else. Figure in hardware costs as well, ideally a server outside of your main environment.
    • I keep saying this, but the historical data piece is worth so much. There's really no good way to collect all of that information in one place without something like PRTG. And that definitely saves time and money in the long run.
    Incentivized
    Read full review
    Zscaler
    • I would say it has a very good ROI, as whenever someone can't access something, they submit a ticket to our network engineer, and within minutes, the site is safely added to ZIA with best-practice configurations. After seeing a little of the UI from the Zenith event, it seems very user-friendly to control these policies.
    Incentivized
    Read full review
    ScreenShots

    Zscaler Internet Access Screenshots

    Screenshot of an overview of Zscaler Internet Access (ZIA), a cloud native security service edge (SSE) solution that builds on a decade of secure web gateway leadership. Offered as a scalable SaaS platform through Zscaler's security cloud, it replaces legacy network security solutions, preventing advanced attacks and data loss with a comprehensive zero trust approach. ZIA is integrated into the Zscaler Zero Trust Exchange™ to provide superior defense-in-depth, secure connectivity, end user experience, and administrative visibility and control.