# Changelog of Website Change Monitor: Diffs, Prices & Alerts (`offerastudio/website-change-monitor`) Actor

- **URL**: https://apify.com/offerastudio/website-change-monitor/changelog.md
- **Full Actor documentation**: https://apify.com/offerastudio/website-change-monitor.md

## Changelog

### 1.0 (2026-10-01)

- First public version.
- Watches up to 500 URLs per run and compares each page with the version saved by the previous run, in a named key-value store (from **Monitor name**, or derived from the URL list and selector).
- First check: one "baseline saved" row per page. Later checks: a row only when the page changed (or for every page with **Include unchanged pages**).
- Compares a CSS selector, or the page's main content with navigation, header, footer, sidebars, cookie banners, scripts and hidden elements removed.
- Ignore patterns (regular expressions), an "ignore dates and times" switch, and a minimum change size; small changes add up until they reach it.
- Change rows: added and removed lines (first 50), change size, previous check time, the full unified diff in the key-value store with a link, and a rule-based summary (no AI) with price, number, date and availability changes and lines added or removed under each heading.
- Polite fetching: one request at a time per site, retries on 429/5xx with backoff and Retry-After.
- Pay per event: `page-checked` at $0.001 per page fetched and compared. Pages that fail to load are free.