74 lines
4.5 KiB
Markdown
74 lines
4.5 KiB
Markdown
## Web Site Change Detection, Restock monitoring and notifications.
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**_Detect website content changes and perform meaningful actions - trigger notifications via Discord, Email, Slack, Telegram, API calls and many more._**
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_Live your data-life pro-actively._
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[<img src="https://raw.githubusercontent.com/dgtlmoon/changedetection.io/master/docs/screenshot.png" style="max-width:100%;" alt="Self-hosted web page change monitoring" title="Self-hosted web page change monitoring" />](https://changedetection.io?src=github)
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### Target specific parts of the webpage using the Visual Selector tool.
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Available when connected to a <a href="https://github.com/dgtlmoon/changedetection.io/wiki/Playwright-content-fetcher">playwright content fetcher</a> (included as part of our subscription service)
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[<img src="https://raw.githubusercontent.com/dgtlmoon/changedetection.io/master/docs/visualselector-anim.gif" style="max-width:100%;" alt="Self-hosted web page change monitoring context difference " title="Self-hosted web page change monitoring context difference " />](https://changedetection.io?src=github)
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### Easily see what changed, examine by word, line, or individual character.
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[<img src="https://raw.githubusercontent.com/dgtlmoon/changedetection.io/master/docs/screenshot-diff.png" style="max-width:100%;" alt="Self-hosted web page change monitoring context difference " title="Self-hosted web page change monitoring context difference " />](https://changedetection.io?src=github)
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### Perform interactive browser steps
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Fill in text boxes, click buttons and more, setup your changedetection scenario.
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Using the **Browser Steps** configuration, add basic steps before performing change detection, such as logging into websites, adding a product to a cart, accept cookie logins, entering dates and refining searches.
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After **Browser Steps** have been run, then visit the **Visual Selector** tab to refine the content you're interested in.
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Requires Playwright to be enabled.
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### Example use cases
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- Products and services have a change in pricing
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- _Out of stock notification_ and _Back In stock notification_
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- Monitor and track PDF file changes, know when a PDF file has text changes.
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- Governmental department updates (changes are often only on their websites)
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- New software releases, security advisories when you're not on their mailing list.
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- Festivals with changes
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- Discogs restock alerts and monitoring
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- Realestate listing changes
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- Know when your favourite whiskey is on sale, or other special deals are announced before anyone else
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- COVID related news from government websites
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- University/organisation news from their website
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- Detect and monitor changes in JSON API responses
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- JSON API monitoring and alerting
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- Changes in legal and other documents
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- Trigger API calls via notifications when text appears on a website
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- Glue together APIs using the JSON filter and JSON notifications
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- Create RSS feeds based on changes in web content
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- Monitor HTML source code for unexpected changes, strengthen your PCI compliance
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- You have a very sensitive list of URLs to watch and you do _not_ want to use the paid alternatives. (Remember, _you_ are the product)
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- Get notified when certain keywords appear in Twitter search results
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- Proactively search for jobs, get notified when companies update their careers page, search job portals for keywords.
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- Get alerts when new job positions are open on Bamboo HR and other job platforms
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- Website defacement monitoring
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- Pokémon Card Restock Tracker / Pokémon TCG Tracker
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- RegTech - stay ahead of regulatory changes, regulatory compliance
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_Need an actual Chrome runner with Javascript support? We support fetching via WebDriver and Playwright!</a>_
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#### Key Features
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- Lots of trigger filters, such as "Trigger on text", "Remove text by selector", "Ignore text", "Extract text", also using regular-expressions!
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- Target elements with xPath(1.0) and CSS Selectors, Easily monitor complex JSON with JSONPath or jq
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- Switch between fast non-JS and Chrome JS based "fetchers"
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- Track changes in PDF files (Monitor text changed in the PDF, Also monitor PDF filesize and checksums)
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- Easily specify how often a site should be checked
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- Execute JS before extracting text (Good for logging in, see examples in the UI!)
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- Override Request Headers, Specify `POST` or `GET` and other methods
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- Use the "Visual Selector" to help target specific elements
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- Configurable [proxy per watch](https://github.com/dgtlmoon/changedetection.io/wiki/Proxy-configuration)
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- Send a screenshot with the notification when a change is detected in the web page
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