Get an alert when a website changes

SiteGauge watches any URL on a schedule and sends a change notification as soon as a check confirms a real, significant change, to email, Slack, SMS, a webhook, and more. No push notifications, no noise.

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Email alerts on every plan, no card AI scores every alert for importance
Change alertExample
Pricing change confirmedcompetitor.com/pricing
Pro plan price$49$59
AI summary9 / 10

A competitor raised its Pro price by about 20 percent. High importance, worth reviewing against your own pricing.

Sent to Email Slack SMS
Email + RSS
Change alerts on every plan, including Free
8 channels
Slack, Teams, Discord, Telegram, Chat, Sheets, webhooks, SMS from Standard
AI-scored
Every alert rated for importance, unmetered
No overage
Monitors pause at your limit, no surprise bills

Set up your first alert

Paste any URL and watch SiteGauge capture it. Pick the area to track and set an alert, right here. No sign-up needed to look.

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What triggers a website change alert

An alert is a confirmed, significant change, not every byte that moves. SiteGauge only notifies you when four things line up. It builds on the same website monitoring engine used across every page you track.

A confirmed change, not a fluke

A cheap check spots a difference, then a full browser render confirms it before anything is sent. A transient blip or a failed load does not fire an alert.

Across any of five signals

Content, visual layout, pricing, SEO and metadata, or availability. A stripped canonical or a swapped price can trigger an alert even when the visible body looks the same.

That clears your importance bar

Every change is scored for importance by AI on every plan, unmetered. A meaningful regression shouts while a reworded sentence stays quiet.

And passes your own rules

Include or exclude parts of the page with CSS selector ignore rules, or set keyword alerts so only the words you care about ever reach you.

Set an alert in three steps

Point it at a page, decide what counts as a change worth knowing, and choose where the notification lands.

01

Pick a page or URL

Point SiteGauge at a single page, a list of URLs, or a whole domain or sitemap with tiered per-page cadence from the Standard plan up.

02

Choose what counts

Select the signals to watch, exclude the noisy regions with CSS selectors, add keyword alerts, and let AI importance scoring filter out trivial edits.

03

Pick your channels

Email is on every plan. From Standard, add Slack, Teams, Discord, Telegram, Google Chat, webhooks, Google Sheets, and SMS. An RSS feed is on every plan.

Alerting a single page is a page monitor job, while watching a whole address is URL monitoring. Both feed the same alert workflow.

Where your alerts land

Send every confirmed change to the channels your team already uses. Email and RSS are on every plan, and the rest unlock from Standard. Browse all integrations.

Email

Free

Every plan, including Free

RSS feed of changes

Free

Every plan, including Free

Slack, Microsoft Teams, Discord, Telegram, Google Chat

Standard

From the Standard plan, via incoming webhooks or bot tokens you set up

Webhooks

Standard

From the Standard plan, POST every confirmed change to your own endpoint

Google Sheets

Standard

From the Standard plan, append each change to a spreadsheet row

SMS

Standard

From the Standard plan, a short text for the changes that matter most

Zapier

API

Via our REST-hook API and your API key, to route changes into thousands of apps

Chat channels connect through incoming webhooks or bot tokens you set up. Zapier connects through our REST-hook API using your API key, which is available on every plan.

Alerts you will actually read

A change alert is only useful if it is not buried under trivia. Four levers keep the stream to what matters.

AI importance scoring

Every confirmed change is scored so a price move or a lost canonical outranks a reworded paragraph. Included on every plan, with no AI credits or caps.

CSS-selector ignore rules

Include or exclude specific parts of a page. Mute a rotating banner, a timestamp, or a live counter so it never triggers an alert.

Keyword alerts

Fire only when a specific word or phrase appears or disappears, such as a plan name, a stock status, or a policy term.

Filterable change feed

Review everything in one feed, filter by change type and importance, save views for a client or a competitor set, and bookmark the ones worth a second look.

Honest about timing

SiteGauge is not a live stream and does not send push notifications. Checks run on a cadence set by your plan, and you are alerted as soon as a check confirms a genuine change. Faster plans check more often.

Free
Daily
Standard
Hourly
Pro
Every 15 min
Business
Every 5 min
Enterprise
As fast as every 2 min
Compare plans and pricing

Who sets up change alerts

Anyone who needs to know when a page moves, and to route that alert to the right place.

SEO and web teams

Get an alert the day a deploy strips a canonical, adds a noindex, or rewrites a title, weeks before it shows up in Search Console.

Marketing and competitive intel

Be notified when a rival changes pricing, messaging, or a launch page, and share the same feed with unlimited free read-only viewers.

Agencies and ops

Watch every client site for regressions and third-party edits, and route each alert to the right channel for the right team.

Stop refreshing pages to catch a change

A manual spot-check misses the edit that mattered. A scheduled alert does not.

Without alerts

  • x Reload pages by hand and hope you notice
  • x Hear about the change days after it shipped
  • x Generic diff tools ping on every reworded line
  • x No screenshot, no score, no idea if it matters

With SiteGauge alerts

  • Alerted as soon as a check confirms a real change
  • Delivered to email, Slack, SMS, a webhook, and more
  • AI scores importance so the noise stays quiet
  • Screenshot, diff, and full history on every alert

Website change alert FAQs

How does a website change alert work?
SiteGauge checks your page on a schedule. A lightweight fetch runs first, and when it spots a difference a full browser render confirms the change and takes a fresh screenshot. AI then scores the change for importance and writes a plain-English summary. If the change clears your importance threshold and passes your ignore rules, you get a change notification on the channels you chose, with a before and after diff.
Is the alert instant or real-time?
No, and we will not pretend otherwise. Checks run on a schedule rather than continuously: daily on Free, hourly on Standard, every 15 minutes on Pro, every 5 minutes on Business, and as fast as every 2 minutes on Enterprise. As soon as a check confirms a real change you are alerted. There are no push notifications and no instant-detection promises.
Which channels can I get alerts on?
Email on every plan, including Free, plus an RSS feed of changes on every plan. From the Standard plan up you can also send alerts to Slack, Microsoft Teams, Discord, Telegram, Google Chat, webhooks, Google Sheets, and SMS. Chat channels connect through incoming webhooks or bot tokens you set up, and Zapier connects through our REST-hook API using your API key.
Will I get flooded with alerts for tiny edits?
No. Every confirmed change is scored for importance by AI, so a stripped canonical or a price change shouts while a reworded sentence stays quiet. You can also exclude noisy regions with CSS selector ignore rules, set keyword alerts so only specific words reach you, and use a filterable change feed and saved views to focus on what matters.
Can I control what counts as a change worth alerting on?
Yes. Choose which signals to watch (content, visual, pricing, SEO and metadata, availability), include or exclude specific parts of the page with CSS selectors, and add keyword alerts. Combined with AI importance scoring, this lets you keep the alert stream to the changes you actually care about.
Do I need a paid plan to get alerts?
No. Email alerts and an RSS feed of changes are on every plan, including Free, which covers 150 checks a month across 5 monitors with screenshots, AI summaries, and API access included and no credit card. Slack, Teams, Discord, Telegram, Google Chat, webhooks, Google Sheets, and SMS unlock from the Standard plan up.
Can I send alerts to a webhook or Zapier?
Yes. From the Standard plan up, SiteGauge can POST every confirmed change to a webhook endpoint you control. You can also connect Zapier through our REST-hook API using your API key to route changes into thousands of apps. The full API is read and write on every plan, including Free.
What happens when I reach my plan limit?
Your monitors pause at your plan allowance and resume on the next reset or when you upgrade. There is no surprise overage bill and no pay-per-check charge. You can see exactly what each plan includes on the pricing page.

Never miss a change that matters

Start free on 5 monitors with email alerts, screenshots, and AI summaries included. No credit card required.

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