v0.52.9

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Easily add the current web-page from your browser directly into your changedetection.io tool, more great features coming soon!

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Some sites use JavaScript to create the content, for this you should use the Chrome/WebDriver Fetcher
Variables are supported in the URL (help and examples here).
Organisational tag/group name used in the main listing page
Automatically uses the page title if found, you can also use your own title/description here

The interval/amount of time between each check.

Set a hourly/week day schedule

Business hours Weekends Reset

  •
  • Warning, one or more of your 'days' has a duration that would extend into the next day.
    This could have unintended consequences.

More help and examples about using the scheduler

Sends a notification when the filter can no longer be seen on the page, good for knowing when the page changed and your filter will not work anymore.

Use the Basic method (default) where your watched site doesn't need Javascript to render.

The Chrome/Javascript method requires a network connection to a running WebDriver+Chrome server, set by the ENV var 'WEBDRIVER_URL'.

Tip: Connect using Bright Data and Oxylabs Proxies, find out more here.
If you're having trouble waiting for the page to be fully rendered (text missing etc), try increasing the 'wait' time here.
This will wait n seconds before extracting the text.
Show advanced options
Show advanced options

Click here to Start


Please allow 10-15 seconds for the browser to connect.
Press "Play" to start. (?)
Use with caution! This will easily fill up your email storage quota or flood other storages.
Look out! There are system-wide notification URLs enabled, this form will override notification settings for this watch only ‐ an empty Notification URL list here will still send notifications.
Use system defaults

Tip: Use AppRise Notification URLs for notification to just about any service! Please read the notification services wiki here for important configuration notes.

Show advanced help and tips
Send test notification Notification debug logs
Title for all notifications
Body for all notifications — You can use Jinja2 templating in the notification title, body and URL, and tokens from below.
Show token/placeholders
  • For JSON payloads, use |tojson without quotes for automatic escaping, for example - { "name": {{ watch_title|tojson }} }
  • URL encoding, use |urlencode, for example - gets://hook-website.com/test.php?title={{ watch_title|urlencode }}
  • Regular-expression replace, use |regex_replace, for example - {{ "hello world 123" | regex_replace('[0-9]+', 'no-more-numbers') }}
  • For a complete reference of all Jinja2 built-in filters, users can refer to the https://jinja.palletsprojects.com/en/3.1.x/templates/#builtin-filters

Format for all notifications
Field
Operator
Value
Actions

Use the verify (✓) button to test if a condition passes against the current snapshot.

Read a quick tutorial about using conditional web page changes here.
Activate preview
Pro-tips:
  • Use the preview page to see your filters and triggers highlighted.
  • Some sites use JavaScript to create the content, for this you should use the Chrome/WebDriver Fetcher
One CSS, xPath 1 & 2, JSON Path/JQ selector per line, any rules that matches will be used.
Show advanced help and tips
  • Remove HTML element(s) by CSS and XPath selectors before text conversion.
  • Don't paste HTML here, use only CSS and XPath selectors
  • Add multiple elements, CSS or XPath selectors per line to ignore multiple parts of the HTML.

Text filtering

Limit trigger/ignore/block/extract to;
Note: Depending on the length and similarity of the text on each line, the algorithm may consider an addition instead of replacement for example.
 So it's always better to select Added+Replaced when you're interested in new content.
 When content is merely moved in a list, it will also trigger an addition, consider enabling Only trigger when unique lines appear
Good for websites that just move the content around, and you want to know when NEW content is added, compares new lines against all history for this watch.
Remove duplicate lines of text
Helps reduce changes detected caused by sites shuffling lines around, combine with check unique lines below.
Remove any whitespace before and after each line of text
  • Text to wait for before triggering a change/notification, all text and regex are tested case-insensitive.
  • Trigger text is processed from the result-text that comes out of any CSS/JSON Filters for this monitor
  • Each line is processed separately (think of each line as "OR")
  • Note: Wrap in forward slash / to use regex example: /foo\d/
  • Matching text will be ignored in the text snapshot (you can still see it but it wont trigger a change)
  • Each line processed separately, any line matching will be ignored (removed before creating the checksum)
  • Regular Expression support, wrap the entire line in forward slash /regex/
  • Changing this will affect the comparison checksum which may trigger an alert

  • Block change-detection while this text is on the page, all text and regex are tested case-insensitive, good for waiting for when a product is available again
  • Block text is processed from the result-text that comes out of any CSS/JSON Filters for this monitor
  • All lines here must not exist (think of each line as "OR")
  • Note: Wrap in forward slash / to use regex example: /foo\d/
  • Extracts text in the final output (line by line) after other filters using regular expressions or string match:
    • Regular expression - example /reports.+?2022/i
    • Don't forget to consider the white-space at the start of a line /.+?reports.+?2022/i
    • Use //(?aiLmsux)) type flags (more information here)
    • Keyword example - example Out of stock
    • Use groups to extract just that text - example /reports.+?(\d+)/i returns a list of years only
    • Example - match lines containing a keyword /.*icecream.*/
  • One line per regular-expression/string match
The Visual Selector tool lets you select the text elements that will be used for the change detection. It automatically fills-in the filters in the "CSS/JSONPath/JQ/XPath Filters" box of the Filters & Triggers tab. Use Shift+Click to select multiple items.
Clear selection One moment, fetching screenshot and element information..
Currently: Loading...
Check count 400
Consecutive filter failures 0
History length 169
Last fetch duration 60.362s
Notification alert count 131
Server type reply

Snapshot too large for edit statistics, skipping.

Content Analysis

Word count (latest snapshot) 6303

Word count is a simple measure of content length, calculated by splitting text on whitespace.

Download latest HTML snapshot

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