## Web Site Change Detection, Monitoring and Notification.
Live your data-life pro-actively, track website content changes and receive notifications via Discord, Email, Slack, Telegram and 70+ more
[<img src="https://raw.githubusercontent.com/dgtlmoon/changedetection.io/master/docs/screenshot.png" style="max-width:100%;" alt="Self-hosted web page change monitoring, list of websites with changes" title="Self-hosted web page change monitoring, list of websites with changes" />](https://changedetection.io)
[**Don't have time? Let us host it for you! try our extremely affordable subscription use our proxies and support!**](https://changedetection.io)
### Target specific parts of the webpage using the Visual Selector tool.
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)
[<img src="https://raw.githubusercontent.com/dgtlmoon/changedetection.io/master/docs/visualselector-anim.gif" style="max-width:100%;" alt="Select parts and elements of a web page to monitor for changes" title="Select parts and elements of a web page to monitor for changes" />](https://changedetection.io?src=pip)
### Easily see what changed, examine by word, line, or individual character.
[<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=pip)
### Perform interactive browser steps
Fill in text boxes, click buttons and more, setup your changedetection scenario.
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.
[<img src="docs/browsersteps-anim.gif" style="max-width:100%;" alt="Website change detection with interactive browser steps, detect changes behind login and password, search queries and more" title="Website change detection with interactive browser steps, detect changes behind login and password, search queries and more" />](https://changedetection.io?src=pip)
After **Browser Steps** have been run, then visit the **Visual Selector** tab to refine the content you're interested in.
Requires Playwright to be enabled.
### Example use cases
- Products and services have a change in pricing
- _Out of stock notification_ and _Back In stock notification_
- Monitor and track PDF file changes, know when a PDF file has text changes.
- Governmental department updates (changes are often only on their websites)
- New software releases, security advisories when you're not on their mailing list.
- Festivals with changes
- Discogs restock alerts and monitoring
- Realestate listing changes
- Know when your favourite whiskey is on sale, or other special deals are announced before anyone else
- COVID related news from government websites
- University/organisation news from their website
- Detect and monitor changes in JSON API responses
- JSON API monitoring and alerting
- Changes in legal and other documents
- Trigger API calls via notifications when text appears on a website
- Glue together APIs using the JSON filter and JSON notifications
- Create RSS feeds based on changes in web content
- Monitor HTML source code for unexpected changes, strengthen your PCI compliance
- 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)
- Get notified when certain keywords appear in Twitter search results
- Proactively search for jobs, get notified when companies update their careers page, search job portals for keywords.
- Get alerts when new job positions are open on Bamboo HR and other job platforms
- Website defacement monitoring
- Pokémon Card Restock Tracker / Pokémon TCG Tracker
- RegTech - stay ahead of regulatory changes, regulatory compliance
_Need an actual Chrome runner with Javascript support? We support fetching via WebDriver and Playwright!</a>_
#### Key Features
- Lots of trigger filters, such as "Trigger on text", "Remove text by selector", "Ignore text", "Extract text", also using regular-expressions!
- Target elements with xPath(1.0) and CSS Selectors, Easily monitor complex JSON with JSONPath or jq
- Switch between fast non-JS and Chrome JS based "fetchers"
- Track changes in PDF files (Monitor text changed in the PDF, Also monitor PDF filesize and checksums)
- Easily specify how often a site should be checked
- Execute JS before extracting text (Good for logging in, see examples in the UI!)
- Override Request Headers, Specify `POST` or `GET` and other methods
- Use the "Visual Selector" to help target specific elements
- Configurable [proxy per watch](https://github.com/dgtlmoon/changedetection.io/wiki/Proxy-configuration)
- Send a screenshot with the notification when a change is detected in the web page
We [recommend and use Bright Data](https://brightdata.grsm.io/n0r16zf7eivq) global proxy services, Bright Data will match any first deposit up to $100 using our signup link.
[Oxylabs](https://oxylabs.go2cloud.org/SH2d) is also an excellent proxy provider and well worth using, they offer Residental, ISP, Rotating and many other proxy types to suit your project.
Please :star: star :star: this project and help it grow! https://github.com/dgtlmoon/changedetection.io/
```bash
$ pip3 install changedetection.io
```
Specify a target for the *datastore path* with `-d` (required) and a *listening port* with `-p` (defaults to `5000`)
```bash
$ changedetection.io -d /path/to/empty/data/dir -p 5000
```
Then visit http://127.0.0.1:5000 , You should now be able to access the UI.
See https://changedetection.io for more information.
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"description": "## Web Site Change Detection, Monitoring and Notification.\n\nLive your data-life pro-actively, track website content changes and receive notifications via Discord, Email, Slack, Telegram and 70+ more\n\n[<img src=\"https://raw.githubusercontent.com/dgtlmoon/changedetection.io/master/docs/screenshot.png\" style=\"max-width:100%;\" alt=\"Self-hosted web page change monitoring, list of websites with changes\" title=\"Self-hosted web page change monitoring, list of websites with changes\" />](https://changedetection.io)\n\n\n[**Don't have time? Let us host it for you! try our extremely affordable subscription use our proxies and support!**](https://changedetection.io) \n\n\n### Target specific parts of the webpage using the Visual Selector tool.\n\nAvailable 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)\n\n[<img src=\"https://raw.githubusercontent.com/dgtlmoon/changedetection.io/master/docs/visualselector-anim.gif\" style=\"max-width:100%;\" alt=\"Select parts and elements of a web page to monitor for changes\" title=\"Select parts and elements of a web page to monitor for changes\" />](https://changedetection.io?src=pip)\n\n### Easily see what changed, examine by word, line, or individual character.\n\n[<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=pip)\n\n\n### Perform interactive browser steps\n\nFill in text boxes, click buttons and more, setup your changedetection scenario. \n\nUsing 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.\n\n[<img src=\"docs/browsersteps-anim.gif\" style=\"max-width:100%;\" alt=\"Website change detection with interactive browser steps, detect changes behind login and password, search queries and more\" title=\"Website change detection with interactive browser steps, detect changes behind login and password, search queries and more\" />](https://changedetection.io?src=pip)\n\nAfter **Browser Steps** have been run, then visit the **Visual Selector** tab to refine the content you're interested in.\nRequires Playwright to be enabled.\n\n\n### Example use cases\n\n- Products and services have a change in pricing\n- _Out of stock notification_ and _Back In stock notification_\n- Monitor and track PDF file changes, know when a PDF file has text changes.\n- Governmental department updates (changes are often only on their websites)\n- New software releases, security advisories when you're not on their mailing list.\n- Festivals with changes\n- Discogs restock alerts and monitoring\n- Realestate listing changes\n- Know when your favourite whiskey is on sale, or other special deals are announced before anyone else\n- COVID related news from government websites\n- University/organisation news from their website\n- Detect and monitor changes in JSON API responses \n- JSON API monitoring and alerting\n- Changes in legal and other documents\n- Trigger API calls via notifications when text appears on a website\n- Glue together APIs using the JSON filter and JSON notifications\n- Create RSS feeds based on changes in web content\n- Monitor HTML source code for unexpected changes, strengthen your PCI compliance\n- 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)\n- Get notified when certain keywords appear in Twitter search results\n- Proactively search for jobs, get notified when companies update their careers page, search job portals for keywords.\n- Get alerts when new job positions are open on Bamboo HR and other job platforms\n- Website defacement monitoring\n- Pok\u00e9mon Card Restock Tracker / Pok\u00e9mon TCG Tracker\n- RegTech - stay ahead of regulatory changes, regulatory compliance\n\n_Need an actual Chrome runner with Javascript support? We support fetching via WebDriver and Playwright!</a>_\n\n#### Key Features\n\n- Lots of trigger filters, such as \"Trigger on text\", \"Remove text by selector\", \"Ignore text\", \"Extract text\", also using regular-expressions!\n- Target elements with xPath(1.0) and CSS Selectors, Easily monitor complex JSON with JSONPath or jq\n- Switch between fast non-JS and Chrome JS based \"fetchers\"\n- Track changes in PDF files (Monitor text changed in the PDF, Also monitor PDF filesize and checksums)\n- Easily specify how often a site should be checked\n- Execute JS before extracting text (Good for logging in, see examples in the UI!)\n- Override Request Headers, Specify `POST` or `GET` and other methods\n- Use the \"Visual Selector\" to help target specific elements\n- Configurable [proxy per watch](https://github.com/dgtlmoon/changedetection.io/wiki/Proxy-configuration)\n- Send a screenshot with the notification when a change is detected in the web page\n\nWe [recommend and use Bright Data](https://brightdata.grsm.io/n0r16zf7eivq) global proxy services, Bright Data will match any first deposit up to $100 using our signup link.\n\n[Oxylabs](https://oxylabs.go2cloud.org/SH2d) is also an excellent proxy provider and well worth using, they offer Residental, ISP, Rotating and many other proxy types to suit your project. \n\nPlease :star: star :star: this project and help it grow! https://github.com/dgtlmoon/changedetection.io/\n\n\n\n```bash\n$ pip3 install changedetection.io\n```\n\nSpecify a target for the *datastore path* with `-d` (required) and a *listening port* with `-p` (defaults to `5000`)\n\n```bash\n$ changedetection.io -d /path/to/empty/data/dir -p 5000\n```\n\n\nThen visit http://127.0.0.1:5000 , You should now be able to access the UI.\n\nSee https://changedetection.io for more information.\n\n",
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