WebPageGazer
WebPageGazer Beta

Monitor the part of a page
you actually care about.

Instead of the whole page, only the spot you pick is monitored.
When it changes, the extension shows you what changed, and can post to Discord or Slack.

Get it See how to start

What a monitoring tool actually needs

Not a machine that keeps notifying you, but one where only meaningful notifications arrive.

Watch only the spot you pick

Click it on the page. Leave out the parts you do not care about, such as ads or timestamps.

See what changed, side by side

“Something changed” only sends you back to the page. The before and the after are shown together.

Alerts only when it matters

Relative times like “3 minutes ago” and rotating ads are ignored by default. When the spot can no longer be read, you are told instead of left in silence.

Sends to Discord · Slack · Microsoft Teams · Google Chat · ntfy Pages drawn by JavaScript too

Three steps to start

  1. Choose the page and the place

    Just click it on the page.

  2. Choose what you want to know

    A change in wording, a number such as a price, or a list growing.

  3. Check what comes back

    Before you save, you see what is actually read.

The finer adjustments and notification settings can wait until you need them.

You decide where what you monitor goes

Fetched content goes only to the destination you set up.

The site you watch
shop.example
Your browser
All done here
FetchCompareStore
Your destination
Discord, Slack and more
Where checks run
Your browser

Fetching, comparing and storing happen in your browser.

Account
Not needed

No email address, no password.

Usage statistics
Off

Off by default. Even when on, neither the URLs you monitor nor the content read is included.

See the privacy policy for details.

Get it

An extension for desktop browsers.

CHROMIUM-BASED

Chrome, Edge and more

● SupportedBeta
Chrome Web Store
  • Chrome
  • Edge
  • Brave
  • Vivaldi
  • Arc
  • Opera
GECKO-BASED

Firefox

○ Not supported yet

We don’t support it yet.

WEBKIT-BASED

Safari

○ Not supported yet

We don’t support it yet.

It does not work in smartphone browsers.

Frequently asked questions

Why is it free?
We make no money from it. There are no ads, no affiliate links and no paid tier, and there is no account to create.
What permissions does it ask for?
On install, only what the extension itself needs to run: storage, notifications and a scheduler. Permission to read a page you want to watch is asked when you add that page, and only for that site. It never asks to read your data on all sites up front.
Where does the content of a watched page go?
Only if you set up a notification to Discord, Slack or similar — then it goes to the destination you chose. Fetching, comparing and storing happen in your browser.
What happens if I want to stop?
Remove the extension and your watches, history and fetched content go with it. Nothing was ever kept on our side.
Can I watch any page I like?
Some sites forbid automated fetching in their terms. Whether a page may be watched is for you to check. See the terms of use.
Does it put load on the sites it watches?
It follows Disallow in robots.txt. It fetches one page at a time per site, with a pause in between, and honours Crawl-delay when a site declares one.
Does it keep watching while the browser is closed?
No. Your browser does the watching, so it stops while closed and picks up again when you open it.
How often does it check?
Every 30 minutes by default, and you can change it per watch. The more you watch, the longer a full round takes, so intervals too short to finish a round cannot be chosen.
Can it watch pages that need a sign-in?
Not by an ordinary patrol, which does not carry your session. Turn on “Wait for the page to load further” for that watch and the page is opened with the same session as your normal browser. We never hold your username or password.
What happens when a site changes its layout?
You are told that it can no longer be read. It never goes quiet and keeps saying “no change”.