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Uptime, API, security, and browser monitoring

Know when a site, API, or key user journey stops working

Check public endpoints and API responses, catch structural changes before they break clients, and run browser journeys in an isolated Playwright sandbox. When a check fails after a release, see response timing and deployment details alongside the result.

Create your workspace See what you can monitor

Start with the routes and user journeys customers rely on.

Monitoring coverage

The signals behind a failure

  • HTTP and API checksAvailability, expected responses, and timing
  • API schema guardStructural changes in JSON responses
  • Browser journeysPlaywright checks of critical customer flows
  • Release contextRecent deployments and changed files

A green health endpoint is useful, but it cannot prove every API response or customer journey works.

What you can check

An HTTP 200 is a start, not a verdict

A route can respond and still return the wrong shape, a browser flow can fail, or a release can add latency. Set up checks for those cases too.

Find the routes worth monitoring

When you add a site, SteadyNode checks its sitemap and common health paths. You can also import static GET routes from Swagger 2.0 or OpenAPI 3.x, then choose which discovery suggestions to monitor.

Catch API contract drift before it reaches clients

Schema Guard compares JSON structure, not response values. It flags removed fields, changed types, unexpected nulls, and arrays that unexpectedly empty.

Test browser journeys without chasing every selector change

Run Playwright checks in an isolated browser. If a locator times out while the page returns HTTP 2xx, SteadyNode verifies a replacement selector and presents a code diff for review. The script stays unchanged unless you apply the diff or enable Auto-Apply Verified Heals per journey; that policy updates only sandbox-verified repairs.

See where a check slowed down

Break a request into DNS lookup, connection, TLS handshake, server response, and content transfer. Regional verification helps confirm whether a failure is local or widespread.

Check more than uptime

Track TLS certificates, DNS and email settings, package vulnerability findings, and verified exposure checks alongside uptime.

Connect failed checks to recent releases

Compare a failing route and response-time changes with a deployment's changed files. You get a ranked shortlist to investigate, not a claim that one commit caused the incident.

Getting started

Start with a URL—or the API spec you already have

SteadyNode can look for common health and sitemap paths when you add a website, or import static GET routes from Swagger or OpenAPI. You decide what to monitor.

  1. 01

    Add a website

    Review suggested health and sitemap paths before creating monitors.

  2. 02

    Import documented routes

    Start eligible static GET checks from a Swagger or OpenAPI document.

  3. 03

    Cover the next failure mode

    Add schema checks, browser journeys, and useful release context.

Technology guides

Uptime monitoring for the stack you run

Apply the same outside-in monitoring principles to frameworks, APIs, and services your team owns.

Browse solutions

Spring Boot monitoring

Monitor health signals, API routes, and customer-facing workflows.

Read the guide

Next.js App Router monitoring

Check server-rendered routes and browser journeys after deployments.

Read the guide

Node.js monitoring

Watch public endpoints and the service paths behind them.

Read the guide

Evaluation resources

Compare monitoring tools against your requirements

Compare check coverage, alert workflows, diagnostic context, and operating cost. Confirm current product capabilities directly with each provider before making a decision.

Pingdom alternative Datadog Synthetics alternative UptimeRobot alternative

Engineering guides

Read how the checks work

Synthetic monitoring

See how endpoint checks, browser journeys, and incident context fit together.

Read guide

API schema drift monitoring

Catch structural changes in JSON responses before they break client code.

Read guide

API discovery and OpenAPI import

Start with sitemap suggestions or import documented GET routes.

Read guide

Synthetic monitoring vs. uptime monitoring

Learn where endpoint checks end and scripted behavior tests begin.

Read guide

Keep investigating

Related monitoring guides and free tools

Frequently asked questions

Is SteadyNode free during Public Beta?

SteadyNode is free during Public Beta. Monitoring is workspace-scoped, and synthetic checks should use dedicated test accounts and non-production data.

What can I monitor?

Run HTTP and API checks, watch JSON responses for structural changes, review TLS, DNS and email settings, and exercise customer flows with Playwright.

What is API schema drift?

It is a structural change to a JSON response, such as a removed field, changed type, unexpected null, or newly empty array. Schema Guard learns a value-free baseline from successful responses and flags later changes.

Will selector healing change my browser test automatically?

By default, no. When a locator times out on a healthy HTTP 2xx page, SteadyNode suggests a replacement selector, verifies it inside an isolated Playwright sandbox, and generates a code diff for 1-click review. If your team prefers hands-off maintenance, you can explicitly enable the Auto-Apply Verified Heals policy per journey so only 100% sandbox-verified fixes update the script automatically.

Can I tell whether a release caused an incident?

No tool can prove cause by correlation alone. SteadyNode places nearby deployments, response timing, affected monitors, and changed files beside an incident to give responders a focused lead.

Can I share results with clients?

Yes. Share SLA and security reports or publish a client-facing status page on a domain you control.

Start with the paths your customers depend on

Begin with a few useful checks. Add API contracts, browser journeys, and client reporting as your monitoring needs grow.

Get started with SteadyNode