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What is Sentinel by Rootstuff?

Sentinel provides a thorough hosted monitoring service for websites, APIs, and network services. It conducts a wide range of assessments, including checks for HTTP/HTTPS, JSON/API, keyword tracking, SSL certificate verification, DNS resolution, domain expiration monitoring, ping tests, TCP port checks, cron job execution, and heartbeat verifications, all while delivering insights on response times and status pages that are accessible to the public. These evaluations can be performed as often as every 15 seconds from 15 distinct geographical locations across six continents, allowing for comprehensive outage notifications through multi-site verification. Teams can receive real-time alerts via various platforms like email, SMS, Slack, Microsoft Teams, Discord, Telegram, PagerDuty, and webhooks to stay updated on service status. In addition, Sentinel offers a REST API, command-line utilities, a Terraform provider for infrastructure management, and an MCP server to support automation tasks. A free plan is available, while paid subscriptions start at $14 monthly, which includes API access without extra fees based on user count. This service is designed for developers, DevOps, and SRE teams, as well as businesses needing dependable monitoring of their service uptime, making it a flexible solution for sustaining high performance across online platforms. Moreover, the extensive capabilities of Sentinel are tailored to improve operational workflows and guarantee that essential services remain active and efficiently functioning. Its user-friendly interface also ensures that teams can easily navigate through the monitoring features to optimize their workflow.

What is Larm?

Larm is an all-encompassing uptime monitoring service that assesses websites, APIs, and various services from multiple locations around the globe, notifying users only when numerous checks confirm an issue. This multi-location verification method greatly minimizes the chances of false positives that are often prevalent in other monitoring solutions. The platform accommodates a range of monitoring types, such as HTTP, TCP, DNS, SSL certificate, and heartbeat or cron checks. Each HTTP check generates a detailed request waterfall, which includes essential metrics like DNS resolution time, TCP connection duration, TLS negotiation, time to first byte, and the duration of data transfer, providing users with the necessary insights to address performance issues rather than just indicating when downtime occurs. All subscription levels offer status pages, even the free tier, which are presented as static HTML and hosted on a CDN to guarantee accessibility during system outages. In addition, paid subscriptions provide features such as custom domain support, email alerts for subscribers, automated incident updates, and the arrangement of components into organized groups. Notifications can be sent through over 13 different channels, ensuring that alerts reach you in your preferred format promptly. With its extensive features and intuitive design, Larm emerges as an indispensable resource for ensuring peak performance of websites and services, ultimately aiding businesses in delivering a seamless user experience.

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Integrations Supported

Discord
GitHub
Microsoft Teams
Model Context Protocol (MCP)
PagerDuty
Rootly
Slack
Telegram
Terraform
incident.io
n8n

Integrations Supported

API Availability

Has API

API Availability

Pricing Information

$14/month
Free plan available. Paid plans start at $14 per month; plans include API access and have no per-seat fee. A 14-day free trial is available on paid plans.
Free Version
Free Trial Offered?

Pricing Information

$19/month
Free Version

Supported Platforms

SaaS
Mac

Supported Platforms

SaaS

Customer Service / Support

Web-Based Support

Customer Service / Support

Web-Based Support

Training Options

Documentation Hub

Training Options

Documentation Hub

Company Facts

Organization Name

Rootstuff

Date Founded

2010

Company Location

United States

Company Website

sentinel.rootstuff.io

Company Facts

Organization Name

Larm

Date Founded

2025

Company Location

United Kingdom

Company Website

larm.dev

Categories and Features

Website Monitoring

Not specified

Categories and Features

Server Monitoring

Not specified

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