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Networking · head to head

Cloudflare vs PRTG Network Monitor

Cloudflare logo

Cloudflare

Networking

The web performance and security company

From
Free
Rated
-
Full reviewWebsite
PRTG Network Monitor logo

PRTG Network Monitor

Networking

Infrastructure monitoring licensed by sensor count, not by device, which changes what a licence actually covers

From
On request
Rated
-
Full reviewWebsite

The short version

  • Only Cloudflare has a free tier, so it costs nothing to try first.
  • Each has a real cost: Cloudflare free tier limited to basic features (no advanced analytics or premium features); PRTG Network Monitor licensing by sensor rather than device means the real cost per device is unpredictable until sensor density is measured; a small network of complex devices can need a much larger tier than device count alone suggests
  • They diverge on capability: Cloudflare covers Global CDN, PRTG Network Monitor covers Sensor-based monitoring.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Cloudflare and PRTG Network Monitor actually diverge.

Attributes where Cloudflare and PRTG Network Monitor differ
AttributeCloudflarePRTG Network Monitor
Starting priceFreeOn request
Pricing modelfreemiumPer sensor tier, billed monthly on an annual contract
Free tierYesNo
PlatformsWebWindows, Web, iOS, Android
Founded2009Unknown

Identical on both: user rating (Not yet rated), category (Networking).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Cloudflare

  • Global CDN
  • DDoS Protection
  • WAF
  • DNS
  • SSL/TLS
  • Load Balancing
  • Bot Management
  • Workers (Serverless)

Only in PRTG Network Monitor

  • Sensor-based monitoring
  • Auto-discovery
  • Multiple monitoring technologies
  • Maps and dashboards
  • Cloud and hybrid deployment

What people use each for

The jobs each tool is most often brought in to do.

Cloudflare

  • Global content delivery network (CDN) with 330+ data centres worldwidenot PRTG Network Monitor
  • DDoS protection and bot blockingnot PRTG Network Monitor
  • Web application security and rate limitingnot PRTG Network Monitor
  • DNS management and domain protectionnot PRTG Network Monitor
  • Static and dynamic content cachingnot PRTG Network Monitor
  • Serverless computing via Cloudflare Workersnot PRTG Network Monitor
  • Database and storage services (D1, R2)not PRTG Network Monitor
  • Performance optimisation for Core Web Vitalsnot PRTG Network Monitor

PRTG Network Monitor

  • An IT team wanting network, server and application monitoring in one product rather than assembling separate open source toolsnot Cloudflare
  • An organisation that wants a Windows-installable on-premises monitoring server with a polished UI out of the boxnot Cloudflare
  • A team sizing a monitoring purchase that needs to calculate sensor density per device carefully before committing to a tiernot Cloudflare
  • A company wanting hybrid on-premises and cloud monitoring from the same licence and dashboardnot Cloudflare

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Cloudflare

  • Free tier limited to basic features (no advanced analytics or premium features)
  • Pro tier ($20-25/month) caps at professional websites (higher tiers needed for enterprise scale)
  • Caches only anonymous API GET responses (authenticated requests and non-GET methods not cached)
  • Geographic coverage limited to announced 330+ cities (may not cover all regions globally)

PRTG Network Monitor

  • Licensing by sensor rather than device means the real cost per device is unpredictable until sensor density is measured; a small network of complex devices can need a much larger tier than device count alone suggests
  • Different PRTG licence sizes cannot be combined on one server, so outgrowing a tier means a step change to the next tier rather than a smooth incremental add
  • It requires a Windows server for on-premises deployment, which is an added infrastructure and patching burden compared with a Linux-native open source alternative
  • Pricing is materially higher than open source options like Icinga or LibreNMS for comparable core monitoring capability, and the premium is for polish and support rather than unique functionality
  • The free tier (100 sensors) is limited enough that most real deployments quickly need a paid tier, so it functions more as a trial than a genuinely usable free offering
  • Custom sensor scripting and advanced configuration still require real monitoring expertise; the polished UI does not remove the underlying complexity of correctly instrumenting a large network

Pricing, plan by plan

Cloudflare

Free

No published plan breakdown. See the Cloudflare review.

PRTG Network Monitor

On request
  • PRTG 500$200/month
    • Up to 500 sensors
  • PRTG 1000$358/month
    • Up to 1,000 sensors
  • PRTG 2500$742/month
    • Up to 2,500 sensors
  • PRTG 5000$1300/month
    • Up to 5,000 sensors

Which should you pick?

Choose Cloudflare if

  • You need global cdn.
  • You want to start without paying.
  • You also want ddos protection.
Cloudflare review

Choose PRTG Network Monitor if

  • You need sensor-based monitoring.
  • You work on Windows, Web, iOS, Android.
  • You also want auto-discovery.
PRTG Network Monitor review

Questions people ask

Is Cloudflare or PRTG Network Monitor better?
Neither clearly leads. Cloudflare starts at Free and PRTG Network Monitor at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Cloudflare or PRTG Network Monitor?
Cloudflare has a free tier; the other does not. Paid plans start at Free for Cloudflare and On request for PRTG Network Monitor.
Does Cloudflare or PRTG Network Monitor run on more platforms?
Cloudflare runs on Web. PRTG Network Monitor runs on Windows, Web, iOS, Android.
Can I use Cloudflare for free?
Yes. Cloudflare has a free tier, so you can try it without paying. PRTG Network Monitor starts at On request.
What is Cloudflare best used for?
Cloudflare is most often used for global content delivery network (cdn) with 330+ data centres worldwide, ddos protection and bot blocking, web application security and rate limiting, dns management and domain protection. Of those, global content delivery network (cdn) with 330+ data centres worldwide and ddos protection and bot blocking are not what PRTG Network Monitor is typically brought in for.
What can Cloudflare do that PRTG Network Monitor cannot?
Cloudflare covers Global CDN, DDoS Protection, WAF, DNS. PRTG Network Monitor covers Sensor-based monitoring, Auto-discovery, Multiple monitoring technologies, Maps and dashboards.

Answered from the vendors’ own pages

Cloudflare: Does Cloudflare have a free tier?

Yes, Cloudflare includes a free tier with generous allowances: 100k daily requests for Workers, 10 GB monthly storage for R2, and 1 GB for Workers KV.

Source
PRTG Network Monitor: Is PRTG licensed per device or per sensor?

Per sensor. Each individually monitored metric counts as one sensor, so a single device is typically several sensors.

Cloudflare: How much does Cloudflare cost beyond the free tier?

Cloudflare uses pay-as-you-go pricing beyond free allocations, charging per million requests, per GB-month of storage, or per vCPU-second depending on the service.

Source
PRTG Network Monitor: Can I combine two PRTG licence tiers on one server?

No, Paessler states different license sizes cannot be combined on one PRTG installation.

Cloudflare: Does Cloudflare charge egress fees?

No, Cloudflare explicitly states no egress fees and no hidden costs; you only pay for the usage metrics specific to each service.

Source
PRTG Network Monitor: Is there a free tier?

Yes, PRTG offers a free tier limited to 100 sensors, which most production networks will exceed quickly.

Cloudflare: What's the Enterprise pricing model for Cloudflare?

Cloudflare Enterprise offers custom pricing and volume discounts available through direct sales for organizations with specialized needs and large-scale usage.

Source
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