Best NsLookup.io Alternatives in 2026
Updated
20 platforms from DNS monitoring software ranked against NsLookup.io on the same published basis.
- 1NsLookup.io vs Visual Sentinel
- 2NsLookup.io vs DNS Check
- 3NsLookup.io vs DomainWarn
- 4NsLookup.io vs Dynatrace Kubernetes Monitoring
- 5NsLookup.io vs OpenNMS
- 6NsLookup.io vs Paessler PRTG Network Monitor
- 7NsLookup.io vs StatusDrift
- 8NsLookup.io vs Checkmate
- 9NsLookup.io vs DNSMonit
- 10NsLookup.io vs DriftWatch
- 11NsLookup.io vs Nagios XI
- 12NsLookup.io vs PageLantern
- 13NsLookup.io vs Metric Tower
- 14NsLookup.io vs Zabbix
- 15NsLookup.io vs ZoneWatcher
- 16NsLookup.io vs Datadog DNS Monitoring
- 17NsLookup.io vs DNS Spy
- 18NsLookup.io vs DomainTools Monitors
- 19NsLookup.io vs KIT.domains
- 20NsLookup.io vs ThousandEyes DNS Monitoring
NsLookup.io alternatives compared
| # | Platform | Score | Free plan | From | Runs on |
|---|---|---|---|---|---|
| 1 | Visual Sentinel | 7.4 | Free plan | $4.50/mo | Android, API, iOS, Web |
| 2 | DNS Check | 7.3 | Free plan | $8/mo | API, Web |
| 3 | DomainWarn | 7.3 | Free plan | €15.83/mo | API, Browser, Web |
| 4 | Dynatrace Kubernetes Monitoring | 7.3 | No | $1.40/mo | Android, API, iOS, Linux, self-hosted, Web |
| 5 | OpenNMS | 7.3 | Free plan | $500/mo | API, Linux, self-hosted, Web |
| 6 | Paessler PRTG Network Monitor | 7.3 | Free plan | $16.67/mo | Android, API, iOS, Linux, Mac, self-hosted, Web, Windows |
| 7 | StatusDrift | 7.3 | Free plan | $12,129/mo | Android, API, iOS, Web |
| 8 | Checkmate | 7.2 | Free plan | Free | API, Linux, Mac, self-hosted, Web, Windows |
| 9 | DNSMonit | 7.2 | Free plan | $9/mo | API, Web |
| 10 | DriftWatch | 7.2 | Free plan | $29/mo | API, Web |
| 11 | Nagios XI | 7.2 | Free plan | Free | API, Linux, self-hosted, Web |
| 12 | PageLantern | 7.2 | Free plan | $97/mo | API, Web |
| 13 | Metric Tower | 7.1 | Free plan | Free | API, self-hosted, Web |
| 14 | Zabbix | 6.8 | No | — | API, Linux, Mac, self-hosted, Web, Windows |
| 15 | ZoneWatcher | 6.7 | No | $1.17/mo | API, Web |
| 16 | Datadog DNS Monitoring | 6.6 | No | $5/mo | API, Linux, Web |
| 17 | DNS Spy | 6.6 | No | $9/mo | API, Web |
| 18 | DomainTools Monitors | 6.6 | No | — | API, Web |
| 19 | KIT.domains | 6.6 | No | $39/mo | API, Web |
| 20 | ThousandEyes DNS Monitoring | 6.6 | No | — | Android, API, iOS, Linux, Mac, self-hosted, Web, Windows |
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Questions about NsLookup.io alternatives
What is the best alternative to NsLookup.io?
Visual Sentinel, number 1 in DNS monitoring software with a score of 7.4 out of 10. The others here: DNS Check, DomainWarn, Dynatrace Kubernetes Monitoring and 16 more.
What is the best free alternative to NsLookup.io?
Visual Sentinel is the best-ranked alternative with a free plan. 12 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, open and connectable first: a public API, open-source code, the depth of its documentation and a free tier to try it on. Model lists are sorted by the figure in their title, exactly as each provider publishes it.