PRTG is intended for small and medium IT infrastructures, with features for OT and IoT environments.
Free plan Free trial From $200 a month, billed yearly AndroidiPhone & iPadWebWindowsMacLinux+2
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Best DNS Monitoring Software 2026
Keeping DNS dependable means comparing the checks a service runs with how quickly it can bring issues to your attention. Compared on nameserver health, propagation, and resolution checks, these options also differ in record-change alerts, check intervals, query locations, and alert channels. Dynatrace Kubernetes Monitoring, Paessler PRTG Network Monitor, and StatusDrift are among the named services to weigh against the way you oversee domains and infrastructure. Check whether the coverage you need includes monitoring from relevant query locations and notifications through channels your team uses. Free-plan availability and paid-from pricing can help put those capabilities in cost context.
02
Dotcom-Monitor
It suits people who need to monitor websites or infrastructure and receive alerts through a range of channels.
AndroidiPhone & iPadWeb+4 Record6.4 Visit
03
Nagios XI
It suits organizations that can operate a Linux server and want to monitor infrastructure under configured thresholds.
WebWindowsMac+3 Record6.0 Visit
04
TLDTrack
TLDTrack is aimed at agencies, branding and marketing studios, SEO consultancies, and web developers monitoring client or business websites.
AndroidiPhone & iPadWeb+2 Record6.0 Visit
05
Visual Sentinel
AndroidiPhone & iPadWeb+1 Record6.0 Visit
7
StatusDrift
AndroidiPhone & iPadWeb+1 $12,129 a month, billed yearly Record5.6 Visit The maker describes Free as suited to personal projects and small sites, Pro for growing teams, Business for teams needing advanced features, and Enterprise for large…
8
DomainWarn
WebBrowser extensionAPI €190 a year Record5.5 Visit DomainWarn is intended for web agencies, freelancers, web developers and IT service providers managing multiple client domains.
9
OpenNMS
WebLinuxAPI+1 $6,000 a year Record5.4 Visit It suits teams monitoring networks across local and remote sites, including environments where the Core cannot directly reach devices.
10
DNS Check
WebAPI $8 a month, billed yearly Record5.2 Visit DNS Check suits people monitoring DNS infrastructure and teams that share DNS update requests with customers.
11
DNSMonit
WebAPI $9 a month Record5.2 Visit DNSMonit suits domain administrators, developers, web agencies, and managed service providers tracking DNS portfolios.
13
DNSai
WebWindowsMac+1 $79 a month Record5.1 Visit DNSai is aimed at IT administrators, cybersecurity analysts, researchers, and operations teams that rely on DNS data.
14
Checkmate
WebWindowsMac+3 Free plan Record5.0 Visit Checkmate names homelabs, SaaS founders, agencies, sysadmins and DevOps, e-commerce, and open-source maintainers as potential users.
15
Zabbix
WebWindowsMac+3 Free plan Record5.0 Visit Zabbix suits teams monitoring infrastructure, applications, networks, or services across a range of operating systems and data sources.
17
ThousandEyes DNS Monitoring
AndroidiPhone & iPadWeb+5 — Record4.9 Visit ThousandEyes DNS Monitoring suits organizations needing visibility across their own networks and provider networks.
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