Loadster Synthetic Monitoring
Loadster Synthetic Monitoring runs scheduled scripted checks against websites, web apps, and APIs from outside your infrastructure.
What Loadster Synthetic Monitoring is
Loadster Synthetic Monitoring runs scheduled scripted checks against websites, web apps, and APIs from outside your infrastructure. A monitor can check one page or endpoint or follow a multi-step flow, such as logging in, navigating pages, and submitting a form. Scripts can use Browser Bots, Protocol Bots, or Playwright Test in JavaScript or TypeScript. Checks can run from every minute to every day, and one monitor can use multiple locations among the eight dedicated monitoring locations listed across five continents.
Monitoring cycles retain logs and detailed traces. Browser-based checks include screenshots, while Protocol Bot checks provide request-response details. Browser Bot and Playwright monitors automatically collect TTFB, FCP, LCP, and CLS metrics. Alerts can be sent by email, SMS, phone call, webhook, Slack, PagerDuty, Opsgenie, or VictorOps. Hosted status pages share selected status and uptime history privately or publicly; custom domains are supported when the customer controls DNS. Monitors can also run from a self-hosted Loadster Engine for inaccessible sites or location-specific checks. A free account includes 50 starter units, not a monthly refill, with no credit card required. Paid options include $77 a month for 1,000 monthly units and $97, paid once for 1,000 units.
Good
- Checks can run as often as every minute
- Supports multi-step scripted journeys
- Provides logs, traces, and browser screenshots
- Offers multiple alert channels and status pages
Watch out
- Free account includes 50 starter units, not a monthly refill
- 1,000 monthly units cost $77 a month
- 1,000 pay-as-you-go units cost $97, paid once
Who it suits
Loadster suits teams that want scheduled checks and alerting for websites, web apps, or APIs. Self-hosted monitoring may suit sites that are not publicly accessible or need checks from a specific location.
Verdict
Loadster combines scripted monitoring with diagnostics, alerts, and status pages. Its free account has a finite starter balance, and paid options include monthly and one-time unit purchases.
Plans and prices
From Loadster Synthetic Monitoring's own pricing page, checked 8 Oct 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Free account starter fuel | Free | 50 starter units per new account · no credit card required · not a monthly refill · 50 free units |
| Monitoring Plans | $29 a month | starting price · thousands of fuel-free monitoring cycles · SMS and robocall notifications · monthly |
| Monthly Fuel 1K | $77 a month | 1,000 Fuel units · unused units roll over while subscribed · monthly |
| 1K Monthly Fuel Plan | $77 a month | 1,000 monthly units · unused fuel rolls over while subscribed · $77 /month |
| Pay-As-You-Go Fuel 1K | $97, paid once | 1,000 Fuel units · units do not expire · one-time purchase |
| Pay-As-You-Go Fuel — 1,000 units | $97, paid once | 1,000 units · purchased fuel does not expire · $97 |
| 5K Monthly Fuel Plan | $317 a month | 5,000 monthly units · unused fuel rolls over while subscribed · $317 /month |
| Monthly Fuel 5K | $317 a month | 5,000 Fuel units · unused units roll over while subscribed · monthly |
| Pay-As-You-Go Fuel 5K | $397, paid once | 5,000 Fuel units · units do not expire · one-time purchase |
| Pay-As-You-Go Fuel — 5,000 units | $397, paid once | 5,000 units · purchased fuel does not expire · $397 |
| 10K Monthly Fuel Plan | $557 a month | 10,000 monthly units · unused fuel rolls over while subscribed · $557 /month |
| Monthly Fuel 10K | $557 a month | 10,000 Fuel units · unused units roll over while subscribed · monthly |
| Pay-As-You-Go Fuel — 10,000 units | $697, paid once | 10,000 units · purchased fuel does not expire · $697 |
| Pay-As-You-Go Fuel 10K | $697, paid once | 10,000 Fuel units · units do not expire · one-time purchase |
| Monthly Fuel 20K | $797 a month | 20,000 Fuel units · unused units roll over while subscribed · monthly |
| 20K Monthly Fuel Plan | $797 a month | 20,000 monthly units · unused fuel rolls over while subscribed · $797 /month |
| Pay-As-You-Go Fuel 20K | $997, paid once | 20,000 Fuel units · units do not expire · one-time purchase |
| Pay-As-You-Go Fuel — 20,000 units | $997, paid once | 20,000 units · purchased fuel does not expire · $997 |
The facts
Each one read from Loadster Synthetic Monitoring's own pages, with the date it was checked.
What it does
- Alerts and integrations
- Alert channels include email, SMS, phone calls, webhooks, Slack, PagerDuty, Opsgenie, and VictorOps.checked 8 Oct 2026
- Changelog news
- The changelog says Monitoring Plans launched in October 2024 and later added richer monitoring summary emails and Fuel usage visibility.checked 15 Oct 2026
- Chrome extension capability
- The Loadster Recorder extension records browser activity for reusable scripts and is listed with 4,000 users.checked 15 Oct 2026
- Chrome extension data disclosure
- The extension declares handling personally identifiable information, authentication information, web history, user activity and website content.checked 15 Oct 2026
- Diagnostics
- Monitoring cycles retain logs and detailed traces, with screenshots for browser-based checks and request-response details for Protocol Bot checks.checked 8 Oct 2026
- Documentation
- The manual includes getting-started material, scripting references, monitoring guidance, REST API documentation, MCP setup and CI examples.checked 15 Oct 2026
- Flow monitoring
- Scripts can perform multi-step journeys such as logging in, navigating pages, submitting forms and checking out, rather than only requesting a URL.checked 15 Oct 2026
- Geographic locations
- The product page lists eight dedicated monitoring locations across five continents, and one monitor can use multiple locations.checked 8 Oct 2026
- Global monitoring locations
- Monitors can run from eight dedicated locations across five continents, with one monitor able to use multiple locations.checked 15 Oct 2026
- Hosted status pages
- Hosted status pages can share selected monitor status and uptime history privately or publicly, and support custom domains when the customer controls DNS.checked 8 Oct 2026
- Incident behavior
- By default, one failing cycle opens an incident and one passing cycle resolves it; the failure threshold can be increased.checked 8 Oct 2026
- Incident handling
- A monitor failure opens an incident and a later passing cycle resolves it; escalation can require multiple consecutive failures.checked 15 Oct 2026
- Integrations
- Documented integrations include Slack, PagerDuty, Opsgenie and VictorOps (Splunk On-Call).checked 15 Oct 2026
- Legal entity
- Loadster, Inc. identifies itself as a Delaware corporation with an operating address in Phoenix, Arizona.checked 15 Oct 2026
- Licence
- Loadster software is proprietary and licensed for subscription use under its Terms of Use; the company states the product is not open source.checked 15 Oct 2026
- Limit: Software Advice uptime reports
- A reviewer said monthly overall uptime reporting was unavailable, requiring the API to build it independently.checked 15 Oct 2026
- MCP extensibility
- Loadster exposes scripts, scenarios, monitors and results through a remote MCP server at https://api.loadster.com/mcp for assistants such as Claude, ChatGPT and Cursor.checked 15 Oct 2026
- Monitoring flows
- Scripts can check a single page or endpoint, or execute multi-step journeys such as logging in, navigating pages, and submitting a form.checked 8 Oct 2026
The company
- Company size and headquarters
- LinkedIn lists Loadster as a privately held software-development company with 2–10 employees headquartered in Phoenix, Arizona.checked 15 Oct 2026
- Founded year
- Capterra lists Loadster as founded in 2013 and located in Phoenix, United States.checked 15 Oct 2026
- Headquarters
- Phoenix, Arizona, USAchecked 28 Sep 2026
Money
- Free starter allowance
- Each new account receives 50 Fuel units without a credit card; the allowance is a starter amount rather than a recurring refill.checked 15 Oct 2026
Where it runs
- Limit: GetApp comparison reporting
- One reviewer wanted an easier way to compare separate test runs after changing an application.checked 15 Oct 2026
- Limit: GetApp pricing
- One GetApp reviewer considered the minimum fuel top-up expensive and asked for a smaller package.checked 15 Oct 2026
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