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Best NsLookup.io Alternatives in 2026

Updated

20 tools from DNS monitoring software ranked against NsLookup.io on the same published basis.

  1. 1
    Paessler PRTG Network Monitor Free plan AndroidapiiOSLinuxMac $16.67/mo8.1
    NsLookup.io vs Paessler PRTG Network Monitor
  2. 2
    Dynatrace Kubernetes Monitoring Free trial AndroidapiiOSLinuxself-hosted $1.40/mo7.8
    NsLookup.io vs Dynatrace Kubernetes Monitoring
  3. 3
    Visual Sentinel Free plan AndroidapiiOSWeb $4.50/mo7.8
    NsLookup.io vs Visual Sentinel
  4. 4
    StatusDrift Free plan AndroidapiiOSWeb $12,129/mo7.6
    NsLookup.io vs StatusDrift
  5. 5
    TLDTrack Free plan AndroidextensioniOSWeb £11/mo7.5
    NsLookup.io vs TLDTrack
  6. 6
    Dotcom-Monitor Free plan WebWinLinuxiOSAndroid $13.33/mo7.4
    NsLookup.io vs Dotcom-Monitor
  7. 7
    ThousandEyes DNS Monitoring Free trial AndroidapiiOSLinuxMac 7.4
    NsLookup.io vs ThousandEyes DNS Monitoring
  8. 8
    DomainWarn Free plan apiextensionWeb €15.83/mo7.3
    NsLookup.io vs DomainWarn
  9. 9
    Nagios XI Free plan apiLinuxself-hostedWeb Free7.3
    NsLookup.io vs Nagios XI
  10. 10
    DNSai Free plan apiMacWebWin $79/mo7.2
    NsLookup.io vs DNSai
  11. 11
    Zabbix Free trial apiLinuxMacself-hostedWeb 7.2
    NsLookup.io vs Zabbix
  12. 12
    Checkmate Free plan apiLinuxMacself-hostedWeb Free7.1
    NsLookup.io vs Checkmate
  13. 13
    DNSMonit Free plan apiWeb $9/mo7.1
    NsLookup.io vs DNSMonit
  14. 14
    Down Device Free plan Web $9/mo7.1
    NsLookup.io vs Down Device
  15. 15
    DriftWatch Free plan apiWeb $29/mo7.0
    NsLookup.io vs DriftWatch
  16. 16
    OpenNMS Free plan apiLinuxself-hostedWeb $500/mo7.0
    NsLookup.io vs OpenNMS
  17. 17
    DNS Check Free plan apiWeb $8/mo6.9
    NsLookup.io vs DNS Check
  18. 18
    ManageEngine Applications Manager Free plan AndroidiOSLinuxWebWin $32.92/mo6.9
    NsLookup.io vs ManageEngine Applications Manager
  19. 19
    Metric Tower Free plan apiself-hostedWeb Free6.9
    NsLookup.io vs Metric Tower
  20. 20
    UpGex DNS Monitoring Free plan Web $8.33/mo6.9
    NsLookup.io vs UpGex DNS Monitoring

NsLookup.io alternatives compared

#ToolScoreFree planFromRuns on
1Paessler PRTG Network Monitor8.1Free plan$16.67/moAndroid, API, iOS, Linux, Mac, self-hosted, Web, Windows
2Dynatrace Kubernetes Monitoring7.8$1.40/moAndroid, API, iOS, Linux, self-hosted, Web
3Visual Sentinel7.8Free plan$4.50/moAndroid, API, iOS, Web
4StatusDrift7.6Free plan$12,129/moAndroid, API, iOS, Web
5TLDTrack7.5Free plan£11/moAndroid, Browser, iOS, Web
6Dotcom-Monitor7.4Free plan$13.33/moWeb, Windows, Linux, iOS, Android
7ThousandEyes DNS Monitoring7.4Android, API, iOS, Linux, Mac, self-hosted, Web, Windows
8DomainWarn7.3Free plan€15.83/moAPI, Browser, Web
9Nagios XI7.3Free planFreeAPI, Linux, self-hosted, Web
10DNSai7.2Free plan$79/moAPI, Mac, Web, Windows
11Zabbix7.2API, Linux, Mac, self-hosted, Web, Windows
12Checkmate7.1Free planFreeAPI, Linux, Mac, self-hosted, Web, Windows
13DNSMonit7.1Free plan$9/moAPI, Web
14Down Device7.1Free plan$9/moWeb
15DriftWatch7.0Free plan$29/moAPI, Web
16OpenNMS7.0Free plan$500/moAPI, Linux, self-hosted, Web
17DNS Check6.9Free plan$8/moAPI, Web
18ManageEngine Applications Manager6.9Free plan$32.92/moAndroid, iOS, Linux, Web, Windows
19Metric Tower6.9Free planFreeAPI, self-hosted, Web
20UpGex DNS Monitoring6.9Free plan$8.33/moWeb
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Questions about NsLookup.io alternatives

What is the best alternative to NsLookup.io?

Paessler PRTG Network Monitor, number 1 in DNS monitoring software with a score of 8.1 out of 10. The others here: Dynatrace Kubernetes Monitoring, Visual Sentinel, StatusDrift and 16 more.

What is the best free alternative to NsLookup.io?

Paessler PRTG Network Monitor is the best-ranked alternative with a free plan. 17 of the 20 alternatives here publish a free plan on their own pricing pages.

How are these alternatives ranked?

Ranked on what each maker publishes, the fullest spec sheet first: how deeply the product is documented, the platforms it runs on, a free tier or trial to test it, and its standing.