Dotcom-Monitor is a website and infrastructure monitoring service from Dotcom-Monitor, a company founded in 1998 and headquartered in Excelsior, Minnesota.
Alternatives to ZoneWatcher
Nagios XI is monitoring software installed on a Linux server you own.
TLDTrack brings website monitoring for agencies and web teams into one dashboard.
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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 - 26

SolarWinds Server & Application Monitor
WebAPILinuxSelf-hosted6.2 - 27
KIT.domains
WebAPI6.1From $39 a month - 28
Moonitor
WebAPI6.1From $14 a month - 29
5.9Free plan - 30
Metric Tower
Metric Tower is a team-scoped, API-first platform combining vulnerability scanning, infrastructure monitoring, phishing simulation, status pages,…
Free planWebAPISelf-hosted5.9Free plan

