Website change alert
When the text on a page moves, the alert email carries the changed lines and almost nothing else, so one alert is one thing to read.
An alert only when the text moves
The default trigger is any change to the readable text. A monitor can instead watch for one phrase appearing, such as In stock, or for one phrase disappearing, such as Sold out.
Noise is stripped before the comparison: clock times, dates, relative times, session ids and the usual cookie banner lines. A page that only reprints the time does not send an alert, which is what keeps the emails worth opening.
What arrives in the alert
A short summary, then the changed lines with added lines marked + and removed lines marked -, and a link that pauses that monitor without signing in. The same change stays in the monitor's history with a side-by-side diff.
30 days of history on Free, 180 days on Pro and 365 days on Business.
Keeping the alerts down
A monitor can send at most 12 alert emails in 24 hours, and each plan also has a daily cap across the account. A monitor that is noisy can be paused, edited or deleted from the dashboard at any time.
Every alert carries a stop link as well, so an alert that arrives in the wrong mailbox can be turned off from the email itself.
Try a page before you sign up
The preview tool on the home page (/) needs no account. Paste a public page address, add a selector if you want one, and read the exact text that would be watched. Up to 20 previews a day are allowed from one address.
The pricing page (/pricing) lists the plans, the interval each one allows and what each one costs. It reads the same plan configuration the server enforces, so the numbers match.
Website change alert questions
Will the alert tell me what actually changed?
Yes, that is most of the email: the changed lines with added lines marked + and removed lines marked -. The changed text is the point of the email, so there is nothing to open and compare by hand. The monitor's history holds the same change with a side-by-side diff for the plan's history window.