18.3
Dotcom-Monitor is a website and infrastructure monitoring service from Dotcom-Monitor, a company founded in 1998 and headquartered in Excelsior, Minnesota.
Free planAndroidiOSWeb
Best DNS Monitoring Software in 2026
Monitoring DNS involves checking resolution as well as nameserver health, propagation, and record changes. Compare the listed check interval and query locations to understand the monitoring scope and cadence each tool offers. Resolution checks, nameserver health checks, and propagation checks address different aspects of DNS, while record-change alerts and alert channels are useful notification criteria. Free-plan…
28.1
Nagios XI is monitoring software installed on a Linux server you own.
Free planWebAPILinux
38.0
TLDTrack brings website monitoring for agencies and web teams into one dashboard.
Free planAndroidiOSWeb
- 4
Visual Sentinel
Visual Sentinel monitors websites and servers, combining standard availability checks with browser-based visual comparisons.
Free planAndroidiOSWebAPI8.0From $6 a month - 5
Paessler PRTG Network Monitor
Paessler PRTG Network Monitor monitors systems, devices, traffic, applications, and other infrastructure metrics from an on-premises installation…
Free planAndroidiOSWebAPI7.7From $200 a month - 6
Domain Monitor
Domain Monitor is a web service for watching domains and connected infrastructure.
Free planAndroidWebAPI7.6From £6.39 a month - 7
StatusDrift
StatusDrift combines uptime monitoring, status pages, and incident management for websites, APIs, and infrastructure.
Free planAndroidiOSWebAPI7.3From $12,129 a month - 8
ManageEngine Applications Manager
ManageEngine Applications Manager is a hybrid application and infrastructure monitoring product available for Android, iOS, Linux, web, and Windows.
Free planAndroidiOSWebLinux7.1From $395 a year - 9
OpenNMS
OpenNMS is an open-source platform for monitoring faults, performance and traffic and generating alarms across local and distributed networks.
Free planWebAPILinuxSelf-hosted7.1From $6,000 a year - 10
DNSai
DNSai uses public DNS records to profile domains, showing information about mail providers, security posture, hosting, platforms, and record changes.
Free planWebAPImacOSWindows6.9From $79 a month - 11
DNS Check
DNS Check monitors DNS records and name servers for changes and lookup failures, and can notify users when something changes.
Free planWebAPI6.7From $8 a month - 12
DomainWarn
DomainWarn monitors client domains for website, DNS, email and registration changes, bringing checks and alerts into one dashboard.
Free planWebAPIExtension6.7From €190 a year - 13
PageLantern
PageLantern is a hosted service for monitoring websites, APIs, DNS records, certificates, domains, ports, and scheduled jobs.
Free planWebAPI6.7From $97 a month - 14
Checkmate
Checkmate is a free, open-source, self-hosted dashboard for infrastructure monitoring, uptime, PageSpeed, and incident alerts.
Free planWebAPILinuxmacOS6.6Free plan - 15
DNSMonit
DNSMonit monitors DNS records, email security settings, and domain expiration through web and API access.
Free planWebAPI6.6From $9 a month - 16
Down Device
Down Device is a web-based monitoring service for websites, web applications, REST APIs, SSL certificates, domains, ports, network devices, and DNS.
Free planWeb6.6From $9 a month - 17
UpGex DNS Monitoring
UpGex DNS Monitoring checks whether resolved DNS values match the expected values a user defines, helping identify routing drift before it becomes an outage.
Free planWeb6.6From $99.99 a year - 18
Zabbix
Zabbix is an open-source monitoring and observability solution for infrastructure, applications, networks, and services.
WebAPILinuxmacOS6.6 - 19
DriftWatch
DriftWatch monitors DNS records for changes and alerts teams with before-and-after differences.
Free planWebAPI6.5From $29 a month - 20
Aura Monitoring
Aura Monitoring is a web service for checking websites and related infrastructure from multiple EU regions.
Free planWeb6.4From $19 a month - 21
Uptura
Uptura is a web-based website operations platform that puts uptime, SSL, DNS, API, SEO, Core Web Vitals, and accessibility checks in one dashboard.
Free planWeb6.4From $19 a month - 22
ThousandEyes DNS Monitoring
AndroidiOSWebAPI6.3 - 23
Datadog DNS Monitoring
WebAPILinux6.2From $5 a month - 24
DNS Spy
DNS Spy monitors DNS records, domain and SSL expirations, security issues, and look-alike phishing domains.
WebAPI6.2From $9 a month - 25
OneDollarDNS
Web6.2From $1 a month