Softwr

Networking · head to head

Cloudflare vs Tenable

Cloudflare logo

Cloudflare

Networking

The web performance and security company

From
Free
Rated
-
Full reviewWebsite
Tenable logo

Tenable

Cybersecurity

AI-powered exposure management platform for unified security visibility

From
$3500/year
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); Tenable pricing starts at $3500/year for Tenable One VM, expensive for small organizations
  • They diverge on capability: Cloudflare covers Global CDN, Tenable covers Unified attack surface mapping.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Cloudflare and Tenable actually diverge.

Attributes where Cloudflare and Tenable differ
AttributeCloudflareTenable
Starting priceFree$3500/year
Pricing modelfreemiumsubscription
Free tierYesNo
PlatformsWebCloud, Web
CategoryNetworkingCybersecurity
Founded2009Unknown

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

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 Tenable

  • Unified attack surface mapping
  • Exposure intelligence enrichment
  • Tenable Hexa AI orchestration
  • Cloud Exposure (CNAPP)
  • OT Exposure
  • Identity Exposure
  • Vulnerability Management
  • Attack Surface Management

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 Tenable
  • DDoS protection and bot blockingnot Tenable
  • Web application security and rate limitingnot Tenable
  • DNS management and domain protectionnot Tenable
  • Static and dynamic content cachingnot Tenable
  • Serverless computing via Cloudflare Workersnot Tenable
  • Database and storage services (D1, R2)not Tenable
  • Performance optimisation for Core Web Vitalsnot Tenable

Tenable

  • Comprehensive vulnerability scanning for enterprise networksnot Cloudflare
  • Cloud security monitoring and compliance for AWS, Azure, GCPnot Cloudflare
  • Identity and access management risk assessmentnot Cloudflare
  • Operational technology security for industrial systemsnot Cloudflare
  • Attack surface management for third-party risknot 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)

Tenable

  • Pricing starts at $3500/year for Tenable One VM, expensive for small organizations
  • Many enterprise features require custom quote and sales engagement
  • Cloud Exposure, OT Exposure, and other modules have no published pricing
  • Multi-year contracts common, limiting flexibility
  • Setup and configuration complexity for enterprise deployments

Pricing, plan by plan

Cloudflare

Free

No published plan breakdown. See the Cloudflare review.

Tenable

$3500/year
  • Tenable One Vulnerability Management$3500/year
    • Per 100 assets
    • Multi-year discounts available
  • Tenable One Web App Scanning$3578/year
    • Per 5 FQDNs
    • Annual subscription
  • Nessus Professional$4790/year
    • Vulnerability scanning
    • Multi-year discounts available
    • Optional advanced support: $400/year
  • Nessus Expert$6790/year
    • Advanced vulnerability scanning
    • Multi-year discounts available
    • Optional advanced support: $400/year

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 Tenable if

  • You need unified attack surface mapping.
  • You work on Cloud, Web.
  • You also want exposure intelligence enrichment.
Tenable review

Questions people ask

Is Cloudflare or Tenable better?
Neither clearly leads. Cloudflare starts at Free and Tenable at $3500/year, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Cloudflare or Tenable?
Cloudflare has a free tier; the other does not. Paid plans start at Free for Cloudflare and $3500/year for Tenable.
Does Cloudflare or Tenable run on more platforms?
Cloudflare runs on Web. Tenable runs on Cloud, Web.
Can I use Cloudflare for free?
Yes. Cloudflare has a free tier, so you can try it without paying. Tenable starts at $3500/year.
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 Tenable is typically brought in for.
What can Cloudflare do that Tenable cannot?
Cloudflare covers Global CDN, DDoS Protection, WAF, DNS. Tenable covers Unified attack surface mapping, Exposure intelligence enrichment, Tenable Hexa AI orchestration, Cloud Exposure (CNAPP).

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
Tenable: How is Tenable One pricing structured?

Tenable One Vulnerability Management costs $3500/year per 100 assets. Web App Scanning is $3578/year per 5 FQDNs. Multi-year discounts are available.

Source
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
Tenable: What is the difference between Nessus Professional and Nessus Expert?

Nessus Professional costs $4790/year and provides core vulnerability scanning. Nessus Expert costs $6790/year and offers advanced scanning capabilities.

Source
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
Tenable: Are custom support and training available for Tenable?

Yes. Optional advanced support is available for $400/year. Training courses range from $275-$385/year.

Source
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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