Side by side
Assertible vs Dotcom-Monitor
Both stand on synthetic monitoring. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Free plan APIWeb
Choose Assertible if you need HTTP service checks, deployment smoke tests, or API test synchronization with common specification formats and Postman collections. Look elsewhere if the Personal plan's service, test, result, or team limits do not fit; paid plans start at $25 a month.
Visit Assertible Free plan AndroidAPIiPhone+4
Dotcom-Monitor offers target monitoring with multiple alert routes and plan limits that vary by tier. Compare the free plan's locations and retention with the subscription or Enterprise features you need.
Visit Dotcom-MonitorThe facts
| Assertible | Dotcom-Monitor | |
|---|---|---|
| Free plan | Yes | Yes |
| Open source | Not published | Not published |
| Runs on | API, Web | Android, API, iPhone, Linux, Self-hosted, Web, Windows |
| Lowest paid plan | Standard: $25 a month | Performance Counters MetricsView: $13.33 a month |
| Plans published | 4 | 8 |
| Maker | Not published | Dotcom-Monitor |
| Website | assertible.com | dotcom-monitor.com |
| On synthetic monitoring | #4 of 43 | #1 of 43 |
Assertible: what it does well
- Creates HTTP assertions and shows request details and results.
- Runs smoke tests automatically after deployment to staging or production.
- Imports and syncs tests with OpenAPI, Swagger, and Postman.
- Integrates with GitHub, Slack, PagerDuty, and Zapier.
- Free tier can be used indefinitely.
What to know first
- The free Personal plan allows two web services and 10 tests per service.
- Personal retains 1,000 results and supports one to two members.
- Shorter monitoring intervals are available on paid plans.
- Paid plans start at $25 a month.
Dotcom-Monitor: what it does well
- Free plan includes up to 25 targets
- Checks can run as frequently as every five minutes on Free
- Lists SSL expiry, keyword, and server monitoring
- Alerts include email, SMS, webhooks, and Slack
- Available on web, desktop, and mobile platforms
What to know first
- Free plan has two monitoring locations
- Free plan retains data for seven days
- Subscription pricing varies by platform, target count, and frequency
Alternatives to Assertible Alternatives to Dotcom-Monitor The whole list

