Side by side
Loader.io vs Loadster Synthetic Monitoring
Both stand on performance testing software. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Free plan APIWeb
Loader.io provides configurable load tests and real-time monitoring for web apps and APIs. Its free tier is limited in host count, duration, and URLs; Pro costs $99.95 a month and includes priority support.
Visit Loader.io Free plan APIExtensionLinux+4
Loadster combines scripted monitoring, diagnostics, alerts, and status pages, with options for public or self-hosted checks. Consider its listed starting price and whether your monitoring needs require a self-hosted engine.
Visit Loadster Synthetic MonitoringThe facts
| Loader.io | Loadster Synthetic Monitoring | |
|---|---|---|
| Free plan | Yes | Yes |
| Open source | Not published | No |
| Runs on | API, Web | API, Extension, Linux, Mac, Self-hosted, Web, Windows |
| Lowest paid plan | Pro: $99.95 a month | Monitoring Plans: $29 a month |
| Plans published | 2 | 18 |
| Maker | Not published | Not published |
| Website | loader.io | loadster.com |
| On performance testing software | #13 of 38 | #9 of 38 |
Loader.io: what it does well
- Supports per-test, per-second, and maintain-load tests.
- Results include response times and error rates.
- Offers webhooks and integrations with CI tools.
- Free plan allows 10,000 clients per test.
What to know first
- Each hostname requires separate verification.
- Tests currently run from Amazon’s US-east datacenter.
- Free tests are limited to one minute and two URLs.
- Pro costs $99.95 a month.
Loadster Synthetic Monitoring: what it does well
- Checks can run as frequently as every minute.
- Supports multi-step scripted journeys.
- Offers eight locations across five continents.
- Retains logs, traces, and relevant check details.
- Hosted status pages support private or public sharing.
What to know first
- Pricing is listed from $29/mo.
- Some sites require a self-hosted Loadster Engine.
- Hosted custom domains require control of DNS.
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