Website Change Checker — Text Diff of Any Page · $0.005/check

Check web pages for content changes. The first run stores a snapshot, later runs report which lines were added or removed and how similar the page is to the last check. Ignore patterns remove dates and counters. Schedule it to track prices and policies. Failed pages are not charged.

Check public web pages for content changes between runs. The first run stores a snapshot; every later run reports whether the page text changed, what lines were added and removed, and how similar the page is to the last check. Ignore patterns remove timestamps and counters; a minimum change size avoids noise. Works on server-rendered HTML (no JavaScript). Failed pages are not charged.

What you get

Structured JSON for each run, ready for spreadsheets, alerts and AI agents.

Input

Field	Type	Default	Description
urls	array		Public http(s) pages to check (up to 50). Run the Actor on a schedule to monitor them.
ignorePatterns	array		Regular expressions; matching text is removed before comparing, for example dates, view counters or "\d+ comments".
minChangedLines	integer	1	Report a change only when at least this many lines were added or removed.
maxLinesInReport	integer	20	Maximum added and removed lines listed per page.

Example input

{
  "urls": [
    "https://www.sitemaps.org/"
  ]
}

Pricing

Event	Price
check (each successful result)	$0.005

Failed runs are not charged. Free trial credits from Apify cover your first runs.

FAQ

Is a result guaranteed to be complete? Each result carries the date it was read. If the upstream service is down the run fails with a clear message and no per-result charge is made.

Can I call it from code or an AI agent? Yes: run it through the Apify API, schedule it, or use it from MCP clients that support Apify Actors.

Is this affiliated with the data source? No. Source names are used descriptively; each result keeps its source attribution and licence line.

Where do I report a problem? Open an issue on this Actor's page; replies are written by the Ambolt service team, usually within a day.

Review

If this Actor saved you time, a short review on its Store page helps others find it and tells us what to improve.

Keywords

website change detection, page monitor, content change, text diff, web page watcher, changelog monitor

Notes

Data comes from the source named in each result and keeps its licence and attribution. Informational only, not financial, legal or tax advice. Open an issue on the Actor page for questions; replies come under the product name.