Where the tool lives
Repository: github.com/CloudAxisAi/website-change-monitor
Install with npm install, then run node monitor.js --url https://example.com. The first run stores a baseline in snapshots.json next to the script (gitignored so you do not leak monitored URLs). The second run exits 0 if nothing changed, or 1 if the normalized text hash differs — scriptable for alerts.
Why a CSS selector matters
Hashing the entire body often fails in production: navigation, footers, and timestamps change even when the "real" content does not. The CLI accepts --selector (default body) so you can point at main, .price, or whatever DOM subtree actually matters.
Static fetch vs JavaScript-rendered pages
This tool uses axios + cheerio — it sees what the server returns before your browser runs client-side JavaScript. SPAs, lazy-loaded prices, and logged-in dashboards usually need a real browser session. That is the same product boundary we draw in cloud browser automation: fetch-based tools are fast and cheap; browser automation is for when the DOM you care about only exists after JS runs.
Running this on a cron job yourself is a pain
Keeping a VPS alive, rotating logs, and handling TLS edge cases is real work. CloudyBot's angle is a hosted agent with a cloud browser and schedules for recurring checks — see pricing for current task and browser-minute caps. Try free → if you want execution without maintaining cron infrastructure.
Broader landscape
For categories beyond this script — SaaS, self-hosted stacks, API-first monitors — use the open awesome web monitoring tools list and the companion post website monitoring tools (2026).
Further reading
Related reading
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