SiteMonit — See Exactly What Changed on Any Website

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Monitor any web page and see exactly what changed — word by word, side by side, not a wall of blinking pixels. Alerts via email, Telegram, Slack or webhook. Free plan, checks every 15 minutes.Every detected change opens as a before/after comparison you can scrub with a slider, with a change map on the divider (the Diff Axis) that marks each added, removed, edited or moved item, so you can click straight to it — even a single changed digit on a large page. A Text mode annotates the page like tracked changes, with deletions struck through in red and additions in green.