ACS MonitorAnglia Computer Solutions Business Limited
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FourSightTetraCore
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Related Products
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About
ACS Monitor is self-hosted network monitoring built for MSPs, IT teams and homelab users who want full control of their data.
Features include SNMP polling (v1/v2c/v3 with custom OIDs), 11 service monitor types (HTTP, ping, DNS, SSH, SMTP, TCP, FTP, POP3, IMAP, MySQL, HTTPS), website monitoring with SSL expiry and content change detection, network auto-discovery, and consecutive-failure alert thresholds via email, SMS, Slack and webhooks.
25 drag-and-drop dashboard widget types, link-shareable. Browser-based diagnostics including ping, traceroute, port scan, DNS lookup, SSL check, WHOIS and HTTP headers with live output. Full REST API.
Two install options: a single-command installer for AlmaLinux, Ubuntu, Debian, Rocky, RHEL, Fedora and Raspberry Pi OS, or a bootable ISO for dedicated VM or bare metal deployments. Both deploy in well under half an hour.
Free tier covers 100 devices with no time limit.
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About
FourSight is multi-region uptime monitoring built to stop alert fatigue. Every check runs from four regions (US, Canada, Europe, Asia-Pacific) and a quorum-based consensus policy confirms an outage from more than one region before anyone is paged, so a single flaky vantage point never wakes you at 3 AM. Eight check types cover HTTP/uptime, keyword/content, SSL certificate expiry, DNS drift, domain expiry (RDAP), ping latency, TCP/UDP port checks and heartbeat monitoring for cron jobs and backups. Alerts go out by email, Slack, HMAC-signed webhooks and SMS, with escalation policies and maintenance windows to keep noise down. Public status pages are included on every tier (white-label with custom domains on Scale), plus incident management with timelines, multi-user organizations with roles, and uptime/latency history with regional breakdowns.
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Platforms Supported
Windows
Not Supported
Mac
Not Supported
Linux
Supported
Cloud
Supported
On-Premises
Supported
iPhone
Not Supported
iPad
Not Supported
Android
Not Supported
Chromebook
Not Supported
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Platforms Supported
Windows
Not Supported
Mac
Not Supported
Linux
Not Supported
Cloud
Supported
On-Premises
Not Supported
iPhone
Not Supported
iPad
Not Supported
Android
Not Supported
Chromebook
Not Supported
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Audience
MSPs, IT service providers, system administrators, network engineers, homelab and self-hosting enthusiasts, small to medium businesses with on-premise infrastructure
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Audience
SaaS teams, indie developers, agencies and IT teams who need website, API, SSL, DNS and cron-job monitoring without false alerts
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Support
Phone Support
Not Supported
24/7 Live Support
Not Supported
Online
Supported
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Support
Phone Support
Not Supported
24/7 Live Support
Not Supported
Online
Supported
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API
Offers API
Supported
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API
Offers API
Not Supported
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Screenshots and Videos |
Screenshots and VideosNo images available
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Pricing
£0 free forever, 100 devices
£0 /forever 100 devices and monitors
£240 /year 500 devices and monitors £590 /year 1000 devices and monitors Custom device and monitor count available on request
Free Version
Supported
Free Trial
Not Supported
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Pricing
$16/month
Free Version
Supported
Free Trial
Not Supported
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Reviews/
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Reviews/
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Training
Documentation
Supported
Webinars
Not Supported
Live Online
Not Supported
In Person
Not Supported
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Training
Documentation
Supported
Webinars
Not Supported
Live Online
Not Supported
In Person
Not Supported
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Company InformationAnglia Computer Solutions Business Limited
Founded: 2015
United Kingdom
acsmon.com
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Company InformationTetraCore
United States
foursight.cloud
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Alternatives |
Alternatives |
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Categories |
Categories |
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Network Monitoring Features
Bandwidth Monitoring
Supported
Baseline Manager
Not Supported
Diagnostic Tools
Supported
Internet Usage Monitoring
Not Supported
IP Address Monitoring
Not Supported
Real Time Analytics
Supported
Resource Management
Supported
Server Monitoring
Supported
SLA Monitoring
Not Supported
Uptime Monitoring
Supported
Web Traffic Reporting
Not Supported
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Integrations
Slack
Not Supported
Twilio Messaging
Not Supported
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