Side by side
Sematext Synthetics vs Testable Synthetic Monitoring
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 trial APILinuxSelf-hosted+2
Sematext Synthetics covers both endpoint checks and scripted browser journeys, with certificate monitoring and private-location agents. Budget for monitor-based pricing and note the HTTP run memory and response-body limits.
Visit Sematext Synthetics
Free plan APISelf-hostedWeb
Testable offers scheduled checks ranging from basic network monitors to scripted workflows, with diagnostics for failed runs. The free plan has five-minute intervals for its basic checks; paid plans start at $23.17/mo (annual).
Visit Testable Synthetic MonitoringThe facts
| Sematext Synthetics | Testable Synthetic Monitoring | |
|---|---|---|
| Free plan | A free trial | Yes |
| Open source | Not published | Not published |
| Runs on | API, Linux, Self-hosted, Web, Windows | API, Self-hosted, Web |
| Lowest paid plan | Pay-As-You-Go: $2 a month | Solo: $23.17 a month |
| Plans published | 1 | 5 |
| Maker | Not published | Not published |
| Website | sematext.com | testable.io |
| On synthetic monitoring | #33 of 46 | #16 of 46 |
Sematext Synthetics: what it does well
- Checks response codes, headers, content, and timing
- Browser monitors simulate user actions with Playwright
- Checks SSL validity, expiry, and certificate changes
- Private agents can run in Docker on Linux or Windows
What to know first
- No free plan is listed
- HTTP monitor runs have 128 MB memory
- Response bodies are trimmed to 2 MB
- No static IP list is provided for firewall allowlisting
Testable Synthetic Monitoring: what it does well
- Free plan includes 50 monitors and one status page.
- Supports browser, API, and scripted-flow checks.
- Failed checks can include screenshots, traces, and logs.
- Paid plans support one-minute monitoring intervals.
What to know first
- Free Ping, Port, and HTTP checks run every five minutes.
- Advanced workflows have a 100-run monthly free allowance.
- Self-hosted monitoring sources are limited to eligible paid plans.
Alternatives to Sematext Synthetics Alternatives to Testable Synthetic Monitoring The whole list