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Networking · head to head

ThousandEyes vs Zabbix

ThousandEyes logo

ThousandEyes

Networking

Internet and network path monitoring, owned by Cisco but still sold as a standalone product on its own annual contracts

From
On request
Rated
-
Full reviewWebsite
Zabbix logo

Zabbix

Networking

Open source infrastructure and network monitoring with distributed proxies and templating

From
Free
Rated
-
Full reviewWebsite

The short version

  • Only Zabbix has a free tier, so it costs nothing to try first.
  • Each has a real cost: ThousandEyes cisco does not publish a current definitive rate card, so any price a buyer finds online is likely outdated and should be confirmed directly with sales before budgeting; Zabbix the database is the scaling limit, and high frequency polling grows history tables fast enough that untuned installations hit housekeeping stalls and query timeouts within months.
  • They diverge on capability: ThousandEyes covers Path visualisation, Zabbix covers Agent and agentless collection.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which ThousandEyes and Zabbix actually diverge.

Attributes where ThousandEyes and Zabbix differ
AttributeThousandEyesZabbix
Starting priceOn requestFree
Pricing modelquote, unit-based consumption on annual or prepaid contractsOpen source, no licence fee
Free tierNoYes
PlatformsWeb, APILinux, Docker, Kubernetes, Web

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 ThousandEyes

  • Path visualisation
  • Cloud, enterprise and endpoint agents
  • Internet Insights
  • Cisco ecosystem integration
  • Unit-based consumption billing

Only in Zabbix

  • Agent and agentless collection
  • Templates
  • Low-level discovery
  • Distributed proxies
  • Trigger expressions
  • Escalation actions

What people use each for

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

ThousandEyes

  • A network operations team at a large enterprise needing to diagnose whether a performance problem sits inside their network, with an ISP, or at the destinationnot Zabbix
  • An organisation already standardised on Cisco networking wanting internet path monitoring that integrates with existing Cisco toolingnot Zabbix
  • A company needing endpoint agent testing from real employee devices to reproduce user-reported performance issuesnot Zabbix
  • An SRE team wanting aggregated internet outage and BGP visibility across a wide customer base rather than building that dataset themselvesnot Zabbix

Zabbix

  • A service provider monitoring thousands of customer devices where per-device commercial licensing is the largest line itemnot ThousandEyes
  • Branch or industrial sites with unreliable links that need local collection and bufferingnot ThousandEyes
  • Mixed estates where the same tool must poll SNMP switches, Linux hosts, Windows servers and Java applicationsnot ThousandEyes
  • Replacing an aging Nagios installation while keeping script-based checks that already existnot ThousandEyes

Where each one falls short

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

ThousandEyes

  • Cisco does not publish a current definitive rate card, so any price a buyer finds online is likely outdated and should be confirmed directly with sales before budgeting
  • A 12-month minimum contract removes the option to trial the platform under real production load on a shorter commitment
  • Unit-based consumption billing across different test types is not always intuitive to forecast, and usage can grow unpredictably as more tests and agents are added
  • Since the Cisco acquisition, purchasing now runs through Cisco's broader enterprise sales and licensing process, which can be slower and less transparent than dealing with a smaller standalone vendor
  • Deep Cisco ecosystem integration is a real advantage only for organisations already standardised on Cisco; it offers less differentiated value for a non-Cisco shop
  • Endpoint agent pricing tiers (Essentials versus Advantage) gate meaningfully different capability, and choosing the wrong tier at signup can mean a contract renegotiation to get needed features

Zabbix

  • The database is the scaling limit, and high frequency polling grows history tables fast enough that untuned installations hit housekeeping stalls and query timeouts within months.
  • Initial configuration is heavy; getting useful alerting rather than noise requires understanding trigger expressions, macros and template inheritance, which is a multi-week learning curve for a team new to it.
  • The AGPLv3 change at version 7.0 affects anyone offering Zabbix over a network as part of a commercial service, and that obligation is easy to inherit accidentally during an upgrade.
  • The web interface is functional rather than pleasant, and many sites end up running Grafana alongside it purely for presentation, which is a second system to maintain.
  • Upgrades between major versions touch the database schema and can take hours on large history tables, so the maintenance window is proportional to how much data you kept.

Pricing, plan by plan

ThousandEyes

On request
  • ThousandEyes$undefined/year
    • Cloud and enterprise agent testing
    • Endpoint agents
    • Internet Insights

Zabbix

Free
  • ZabbixFree
    • No device, node or metric limits
    • Full feature set with no paid edition of the software
    • AGPLv3 from version 7.0 onward
  • Zabbix Technical Support$undefined/year
    • Tiered subscriptions with defined response times
    • Access to Zabbix engineers for configuration and performance issues
    • Bug fix priority and backports

Which should you pick?

Choose ThousandEyes if

  • You need path visualisation.
  • You work on Web, API.
  • You also want cloud, enterprise and endpoint agents.
ThousandEyes review

Choose Zabbix if

  • You need agent and agentless collection.
  • You want to start without paying.
  • You work on Linux, Docker, Kubernetes, Web.
  • You also want templates.
Zabbix review

Questions people ask

Is ThousandEyes or Zabbix better?
Neither clearly leads. ThousandEyes starts at On request and Zabbix at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, ThousandEyes or Zabbix?
Zabbix has a free tier; the other does not. Paid plans start at On request for ThousandEyes and Free for Zabbix.
Does ThousandEyes or Zabbix run on more platforms?
ThousandEyes runs on Web, API. Zabbix runs on Linux, Docker, Kubernetes, Web.
Can I use Zabbix for free?
Yes. Zabbix has a free tier, so you can try it without paying. ThousandEyes starts at On request.
What is ThousandEyes best used for?
ThousandEyes is most often used for a network operations team at a large enterprise needing to diagnose whether a performance problem sits inside their network, with an isp, or at the destination, an organisation already standardised on cisco networking wanting internet path monitoring that integrates with existing cisco tooling, a company needing endpoint agent testing from real employee devices to reproduce user-reported performance issues, an sre team wanting aggregated internet outage and bgp visibility across a wide customer base rather than building that dataset themselves. Of those, a network operations team at a large enterprise needing to diagnose whether a performance problem sits inside their network, with an isp, or at the destination and an organisation already standardised on cisco networking wanting internet path monitoring that integrates with existing cisco tooling are not what Zabbix is typically brought in for.
What can ThousandEyes do that Zabbix cannot?
ThousandEyes covers Path visualisation, Cloud, enterprise and endpoint agents, Internet Insights, Cisco ecosystem integration. Zabbix covers Agent and agentless collection, Templates, Low-level discovery, Distributed proxies.

Answered from the vendors’ own pages

ThousandEyes: Is ThousandEyes still sold as a standalone product after the Cisco acquisition?

Yes, it remains a distinct, purchasable product line rather than being merged into another Cisco offering.

Zabbix: Is Zabbix genuinely free for commercial use?

The software has no licence fee at any scale. From version 7.0 it is AGPLv3, so offering it as a network service to third parties carries source distribution obligations.

ThousandEyes: Is there a published, current price list?

No, Cisco does not publish a definitive current rate card; historical unit prices exist online but should not be treated as confirmed 2026 pricing.

Zabbix: What is the real cost of running it?

Database administration and the person who tunes it. Budget for PostgreSQL with TimescaleDB and someone who owns the retention policy.

ThousandEyes: What is the minimum contract length?

12 months.

Zabbix: How does it compare to a commercial per-device tool?

It removes the licence line entirely and adds an operations line. Below a few hundred devices the commercial tool is often cheaper in total; above that Zabbix wins clearly.

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