Real-Time Webpage Change Monitor

I need a small utility that sits in the background, pings a single public web page every second, and alerts me the moment it detects any difference in either the visible text or the images.

The page updates unpredictably, so true real-time tracking is essential; a one-minute polling interval is already too slow for my use-case. A lightweight approach that respects the site’s bandwidth and avoids triggering blocks or captchas will be valued.

I am open to whatever stack you favour—Python with BeautifulSoup or Selenium, Node.js with Puppeteer, or a compiled solution—so long as it is stable on a Windows environment and easy for me to tweak the target URL later. Notification method is flexible: an email is fine, but if you have a smarter suggestion (desktop toast, webhook, etc.) that can be set up quickly, I’m all ears.

Please deliver:
• The complete, well-commented source code
• A brief README explaining how to change the URL and run the checker on my machine
• Proof of concept: run it once and capture a sample alert triggered by a manual page edit

Clean, efficient code and clear hand-off documentation will determine acceptance.