
Dotcom-Monitor
8.3#1 in website monitoring softwareFrom $13.33 a monthFree planAndroidiOSWebAPI
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| Fact | Dotcom-Monitor | Sentinel |
|---|---|---|
| Documentation depth | The public knowledge base contains monitoring and load-testing sections, FAQs, setup guides, API endpoint references, troubleshooting and a product change log. | Documentation includes getting-started guides, monitor concepts, integrations, CLI instructions, API references, pagination, errors, rate limits and troubleshooting. |
| Founded | 1998 | The company timeline says Sentinel was founded in 2024 and launched in February 2026. |
| Integrations | Listed integrations include Azure AD, Slack, Microsoft Teams, PagerDuty, Splunk, Asana, Okta, Pushover, ServiceNow, Salesforce, Trello, Geckoboard, Google Sheets, Zapier and Status.io. | GitHub deploy markers, Terraform, PagerDuty, a CLI and MCP-based AI assistants are supported; Zapier and Datadog are listed as coming soon. |
| Keyword monitoring | Yes | Keyword checks verify required page text or detect unwanted error and defacement content. |
| Rating on G2 | 4.5 out of 5 from 33 reviews | The G2 Sentinel pricing listing displays a 5.0 out of 5 rating; the page does not state a review count. |
Dotcom-Monitor suits teams that need website or server monitoring, keyword checks, or SSL expiry alerts across multiple targets. Its free plan is an option for those who can work within its listed target, location, alert, and retention limits; larger monitoring needs can look at subscription or enterprise plans.
Sentinel suits digital agencies, freelance developers and designers, and SaaS teams that manage one or more sites. It offers monitoring, status pages, and incident history for those services.