什么是 PageChange？
Monitor any webpage and get alerted the moment something changes. Paste a URL → set check frequency → get notified via email, Slack, or webhook. Why PageChange: • Visual diff highlighting — see exactly what changed • Smart filtering — ignores ads, timestamps, noise • Free forever — 3 monitors, 5K checks/month Perfect for tracking competitor prices, content updates, stock availability, or API docs. Set up in 30 seconds, no coding required.
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