Documentation

Everything you need to get monitoring

Start in minutes, understand the concepts behind monitors and AI change detection, then go deeper with the REST API.

Monitors

How crawling, snapshots, and check frequency work - and how to scope a monitor to part of a page.

AI change detection

How SiteGauge classifies each change by significance and writes the plain-language summary.

Alerts & digests

Routing changes to email, Slack, and webhooks, and batching low-priority changes into digests.

REST API

Authenticate with an API key, create and manage monitors, and pull change data programmatically.

Free tools

Eight standalone utilities - uptime, headers, redirects, sitemaps and more. No sign-up needed.

Quickstart

Go from zero to your first tracked change in under five minutes.

Quickstart

Add a URL

Paste any web page into the monitor box. SiteGauge fetches it immediately and stores a baseline snapshot - HTML, rendered text, and a screenshot.

Set your cadence

Choose how often we re-check: daily on Free, hourly on Standard, every 15 minutes on Pro, every 5 minutes on Business. You can override the frequency per monitor.

Tune what counts

Optionally narrow a monitor to a region of the page - a pricing table or hero section - so cosmetic changes elsewhere never trigger an alert.

Get the briefing

When something meaningful changes, our AI layer summarises what moved and why it matters, then delivers it by email, Slack, or webhook.

Create your first monitor

Core concepts

Monitor: A single tracked URL plus its settings - check frequency, the region of the page being watched, and where alerts are sent.
Snapshot: A point-in-time capture of a monitored page: rendered HTML, extracted text, and a full-page screenshot. Every check produces a snapshot we diff against the last.
Change: A detected difference between two consecutive snapshots. Each change carries a diff, an AI summary, and a significance rating (high, medium, or low).
Significance: Our AI's judgement of how much a change matters. A price cut rates high; a rotating testimonial rates low and stays out of your inbox unless you ask for it.
Digest: A batched email rolling up low-priority changes across all your monitors into one daily or weekly summary, so routine edits never spam you.

Ready to automate it? Explore the REST API →