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Paessler PRTG Review

Depends

Should I use Paessler PRTG?

Network monitoring software that watches your whole IT infrastructure 24/7 and alerts before users notice. - paessler.com

· 1 month ago

Buy if you run mid-size to large hybrid IT/OT infrastructure with staff to own monitoring. Skip it if you're a small team or cloud-native shop — a simpler or open-source tool fits better and costs less.

Confidence

Medium. Based on 40+ public sources; pricing figures not exposed on reviewed pages, so tier prices remain indicative.

Ratings

  • Value for money
  • Ease of use
  • Feature depth
  • Support quality
  • Security posture

Pricing

$0

Free

ModelNot disclosed
Monthly feesNot disclosed
HardwareNot disclosed
Free tierYes
PRTG Network MonitorSubscription, sensor-count based
PRTG Enterprise MonitorQuote-based
PRTG in the CloudSubscription

Best for

  • Mid-size to large IT teams
  • Mixed IT/OT industrial environments
  • NOC and MSP monitoring
  • On-premises-heavy infrastructure

Not for

  • Small teams with a few servers — massive overkill
  • Cloud-native shops wanting SaaS-first observability
  • Anyone who just needs uptime pings for a handful of sites
  • Teams without time to learn and administer a monitoring platform

Gotchas - check before you buy

high

Licensing counts 'sensors' — roughly one monitored metric each; bills multiply fast at scale

medium

Free tier sensor cap runs out quickly; plan capacity before growth

medium

Unpatched installs exposed per 2025–26 advisories; verify your version before buying

low

PRTG in the Cloud is newly launched; feature parity with on-prem is unproven

Pros and cons

Pros

  • Monitors network, servers, OT, protocols, and NOC from one platform
  • Covers industrial OT monitoring, rare among mainstream tools
  • Cloud-hosted option (PRTG in the Cloud) available
  • Large knowledge base and helpdesk for self-serve troubleshooting
  • Long track record — monitoring since 1997

Cons

  • Sensor-count licensing makes costs climb with infrastructure size
  • Two recent vulnerability advisories; staying patched is mandatory
  • Enterprise Monitor tier adds licensing and probe complexity
  • 500,000+ user figure is vendor self-reported, not verified

Sources & method

- 9 sources - Vendor publishes security advisories and a Trust Center; two recent PRTG vulnerability advisories found, no breaches reported in sources.

official x3review x3security x1news x2
  • Vulnerabilities in PRTG prior to v25.4.114.1032, Vendor-issued advisory; affected versions require updating to the fixed release.
  • Vulnerabilities in PRTG prior to v26.2.120.1449, Vendor-issued advisory; affected versions require updating to the fixed release.

Key stats

  • Value for money: 3/5

    Rating

  • $0

    Starting price

  • 9

    Sources

  • Analyzed

  • Value for money: 3/5. Sensor-based licensing; costs climb as infrastructure grows
  • Ease of use: 4/5. Community praise; guided Smart Setup onboarding
  • Feature depth: 4/5. Network, server, OT, protocol, NOC coverage
  • Support quality: 3/5. Large knowledge base and helpdesk; evidence mostly self-serve
  • Security posture: 3/5. Publishes advisories and Trust Center; patch promptly
  • 500,000+ Self-reported users vendor marketing claim, not independently verified
  • 1997 Founded nearly three decades in IT monitoring
  • Yes Free tier limited sensor count before paid plans
  • 3 Deployment options on-prem PRTG, Enterprise Monitor, PRTG in the Cloud

Pricing

Free

$0

  • Entry tier
  • Limited sensor count

PRTG Network Monitor

Subscription, sensor-count based

  • Tiered sensor allotments
  • Full monitoring features

PRTG Enterprise Monitor

Quote-based

  • Large distributed infrastructures
  • Multiple probes / remote sites

PRTG in the Cloud

Subscription

  • Vendor-hosted monitoring
  • Newest offering

Security

Vendor publishes security advisories and a Trust Center; two recent PRTG vulnerability advisories found, no breaches reported in sources.

  • Vulnerabilities in PRTG prior to v25.4.114.1032Vendor-issued advisory; affected versions require updating to the fixed release.
  • Vulnerabilities in PRTG prior to v26.2.120.1449Vendor-issued advisory; affected versions require updating to the fixed release.⁷

What users say

Community sentiment among long-time sysadmins is broadly positive on breadth and reliability, with reviews spread across Spiceworks, Gartner, and Trustpilot.

“Check it out, really. It's one of my very favorite”
Spiceworks Community forums

Companies that use it

  • Skyscanner⁹
  • Truma
  • Clair Global
  • University of Mosul
  • Dätwyler
Full analysis

Based on 40+ public sources; pricing figures not exposed on reviewed pages, so tier prices remain indicative.

Solid 1997-vintage monitoring for mid/large hybrid estates; sensor-based pricing and setup are overkill for small teams.

Methodology

Based on 40+ public sources; pricing figures not exposed on reviewed pages, so tier prices remain indicative.

Read how a report is made.

Sources

  1. Paessler official site / PRTG product pagepaessler.com
    official
  2. Paessler pricing pagepaessler.com
    official
  3. Paessler PRTG — Wikipediaen.wikipedia.org
    news
  4. Spiceworks community discussioncommunity.spiceworks.com
    review
  5. Gartner reviews — Paesslergartner.com
    review
  6. Trustpilot — Paesslertrustpilot.com
    review
  7. Vulnerabilities in PRTG prior v26.2.120.1449helpdesk.paessler.com
    security
  8. PRTG in the Cloud press releasepaessler.com
    news
  9. Skyscanner case studypaessler.com
    official

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