# Sitemap URL Extractor & Change Monitor (`webdatatools/sitemap-extractor`) Actor

Sitemap URL extractor that reads robots.txt, sitemap indexes, .xml.gz and plain-text sitemaps and returns one row per URL with lastmod, changefreq, priority — plus a new/removed diff between runs.

- **URL**: https://apify.com/webdatatools/sitemap-extractor.md
- **Developed by:** [Murat Uzun](https://apify.com/webdatatools) (community)
- **Categories:** SEO tools, Developer tools, Automation
- **Stats:** 2 total users, 1 monthly users, 100.0% runs succeeded, 0 bookmarks
- **User rating**: No ratings yet

## Pricing

from $0.12 / 1,000 results

This Actor is paid per event. You are not charged for the Apify platform usage, but only a fixed price for specific events.
Since this Actor supports Apify Store discounts, the price gets lower the higher subscription plan you have.

Learn more: https://docs.apify.com/actors/running/actors-in-store.md#pay-per-event

## What's an Apify Actor?

An Actor is a serverless cloud program that runs on the Apify platform. It has two run modes.
In Batch mode, an Actor accepts a well-defined JSON input, performs an action which can take anything from a few seconds to a few hours,
and optionally produces a well-defined JSON output, datasets with results, or files in key-value store.
In Standby mode, an Actor provides a web server which can be used as a website, API, or an MCP server.

Apify vocabulary and the platform model are defined once, in the agent quickstart at https://apify.com/agents.md.

## How to integrate an Actor?

If asked about integration, you help developers integrate Actors into their projects.
You adapt to their stack and deliver integrations that are safe, well-documented, and production-ready.

Do not guess an integration path. Every one of them is in the agent quickstart at https://apify.com/agents.md: the Apify MCP server, Agent Skills with the Apify CLI, the JavaScript and Python clients, the REST API, and the account-free path for an agent with no human to sign in. It also carries the rule on stating cost before the first paid run.

For examples already wired to this Actor's own input schema, see the [API](#api) section below.

Each client library has reference documentation the quickstart does not restate: [JavaScript/TypeScript](https://docs.apify.com/api/client/js/docs.md) (`npm install apify-client`) and [Python](https://docs.apify.com/api/client/python/docs.md) (`pip install apify-client`).

# README

### What is Sitemap URL Extractor & Change Monitor?

Sitemap URL Extractor & Change Monitor is an Apify Actor that turns any website's XML sitemaps into a flat dataset — **one row per URL**, with `lastmod`, `changefreq`, `priority` and image/video counts. Give it a bare domain and it reads the `Sitemap:` lines of `/robots.txt`, then falls back to `/sitemap.xml`, `/sitemap_index.xml`, `/sitemap-index.xml`, `/sitemap.xml.gz` and `/sitemap.txt`. Give it a sitemap index and it follows every child sitemap (up to 500) by itself. Gzipped `.xml.gz` sitemaps, namespace-prefixed XML, CDATA-wrapped `<loc>` values, plain-text sitemaps and RSS/Atom feeds used as sitemaps are all handled. Switch **Mode** to `diff` and the Actor snapshots each source in a named key-value store, so every later run labels each URL `new`, `unchanged` or `removed` — a ready-made "what pages did this site add this week" feed.

### What data does Sitemap URL Extractor & Change Monitor extract?

Sitemap URL Extractor & Change Monitor extracts 11 fields per URL:

| Field                     | Type            | Description                                                                                            |
| ------------------------- | --------------- | ------------------------------------------------------------------------------------------------------ |
| `url`                     | string          | The page URL from `<loc>`, entity-decoded and resolved to absolute                                     |
| `lastmod`                 | string          | `<lastmod>` normalised to an ISO 8601 UTC timestamp (`2026-09-12T16:30:03.000Z`)                       |
| `changefreq`              | string          | `<changefreq>` hint: `always`, `hourly`, `daily`, `weekly`, `monthly`, `yearly`, `never`               |
| `priority`                | number          | `<priority>` clamped to 0.0-1.0                                                                        |
| `imageCount`              | integer         | `<image:image>` entries in the URL block (Google image sitemap extension)                              |
| `videoCount`              | integer         | `<video:video>` entries in the URL block (Google video sitemap extension)                              |
| `sitemapUrl`              | string          | Which child sitemap file actually contained this URL, e.g. `https://apify.com/sitemap/pages.xml`       |
| `source`                  | string          | The domain or sitemap URL you entered                                                                  |
| `change`                  | string          | Diff mode only: `new`, `unchanged` or `removed` versus the previous run                                |
| `error`                   | string          | Why a source produced nothing, e.g. `No sitemap found`; null on successful rows                        |
| `scrapedAt`               | string          | When the run read the sitemaps (ISO 8601 UTC)                                                          |

### How to use Sitemap URL Extractor & Change Monitor

1. Paste domains or sitemap URLs into **Sitemaps or domains**. `apify.com`, `https://apify.com` and `https://www.allbirds.com/sitemap.xml` all work — discovery, index recursion and gzip are automatic.
2. Set **Max URLs per source** to the number of rows you want per site (default 1,000, maximum 200,000). The cap counts across every child sitemap of an index.
3. Optionally narrow the crawl with **URL filter (regex)** — `/products/` for a Shopify catalogue, `/blog/` for content, `\.pdf$` for documents.
4. Click **Start**, then export as JSON, CSV, Excel or HTML — or schedule the Actor in `diff` mode and wire the **Changes** view into a webhook.

### Example input

```json
{
    "sources": ["https://apify.com", "https://www.allbirds.com/sitemap.xml"],
    "maxUrlsPerSource": 1000,
    "urlFilter": "",
    "mode": "list",
    "maxConcurrency": 5
}
```

### Example output

```json
{
    "source": "https://www.allbirds.com/sitemap.xml",
    "sitemapUrl": "https://www.allbirds.com/sitemap_products_1.xml?from=1878194389061&to=7369944137808",
    "url": "https://www.allbirds.com/products/mens-wool-runners-natural-white",
    "lastmod": "2026-09-12T16:30:03.000Z",
    "changefreq": "daily",
    "priority": null,
    "imageCount": 1,
    "videoCount": 0,
    "change": null,
    "error": null,
    "scrapedAt": "2026-09-12T17:05:00.000Z"
}
```

### Input parameters

| Parameter          | Type    | Default              | Description                                                          |
| ------------------ | ------- | -------------------- | -------------------------------------------------------------------- |
| `sources`          | array   | `["https://apify.com"]` | Sitemap URLs or bare domains; robots.txt discovery for domains    |
| `maxUrlsPerSource` | integer | `1000`               | URL cap per source across all child sitemaps (1-200,000)             |
| `urlFilter`        | string  | `""`                 | Optional regex; only matching URLs are kept                          |
| `mode`             | string  | `list`               | `list` = every URL, `diff` = new/unchanged/removed since last run    |
| `diffStoreName`    | string  | `sitemap-monitor`    | Named key-value store holding the between-run URL snapshots          |
| `maxConcurrency`   | integer | `5`                  | Sitemap files downloaded in parallel (1-20)                          |

### Pricing

Sitemap URL Extractor & Change Monitor uses pay-per-event pricing: **$0.0002 per URL row, i.e. $0.20 per 1,000 URLs**, plus a negligible actor-start fee, platform usage included. A sitemap is one small HTTP request per file — the 1,591-URL `apify.com` page sitemap is a single 132 KB download — so compute stays in the cents even for 200,000-URL catalogues. Set **Maximum cost per run** and the Actor trims the result set to what the budget covers instead of overspending.

### Sitemap URL Extractor & Change Monitor vs. a full site crawl

Sitemap URL Extractor & Change Monitor gets you a site's URL inventory in seconds instead of hours. A crawler has to fetch and parse every page to find the next link, burning proxy bandwidth and tripping rate limits; a sitemap is the site's own published index, already complete, already dated. Use this Actor to build the URL list, then feed it to a page-level scraper — you crawl only what you meant to. Versus Screaming Frog or a `curl | grep` one-liner, you also get gzip and index recursion handled, `lastmod` normalised to ISO, and a persistent diff between runs that no one-shot tool gives you.

### Using Sitemap URL Extractor & Change Monitor with AI agents and MCP

Sitemap URL Extractor & Change Monitor is pay-per-event with limited permissions — the two requirements for an Actor to be callable through the Apify MCP server at `mcp.apify.com`. An agent passes `sources` and gets back a structured URL inventory it can use to decide what to read next, without writing a crawler. The same run works from n8n, Make, Zapier and LangChain through Apify's integrations; in `diff` mode a scheduled run plus a webhook gives you "alert me when this competitor publishes a new page".

### FAQ

**How does diff mode remember the previous run?** Each source's URL set is stored in the named key-value store from **Diff snapshot store name** (default `sitemap-monitor`) under a key derived from a SHA-1 of the source string. Keep the store name identical across scheduled runs so they compare against each other. The first run has no snapshot, so every URL is reported as `new`; the second run of an unchanged site reports every URL as `unchanged`. A source that fails to fetch never overwrites its snapshot, so one transient error cannot report a whole site as `removed`.

**Are `.xml.gz` sitemaps supported?** Yes. Some servers send `Content-Encoding: gzip` and some send raw gzip bytes as `binary/octet-stream` — the Actor sniffs the gzip magic number instead of trusting the file extension, so both work.

**What are the limitations?** Only what the site publishes: pages missing from the sitemap are invisible here, and `lastmod` is the site's claim, not a verified fact. An index is followed up to 500 child sitemaps and 4 levels deep. Sitemaps behind an aggressive CDN bot wall can return HTML or 403; that source then produces one row with the reason in `error` instead of failing the run.

**Is this legal to run?** Yes. `robots.txt` and sitemaps exist specifically to be read by automated clients, and no personal data is collected.

**Can I export to CSV or Excel?** Yes, from the Output tab or the API, with ready-made **Overview** and **Changes (diff mode)** views.

### Related Actors

Part of the **webdatatools** web-intelligence suite — every Actor is pay-per-event, reads public data
without a login, and returns one clean row per entity:

Browse the whole suite at [webdatatools](https://paulet4a-commits.github.io/webdatatools/), or call ten of
these Actors straight from Claude, Cursor or Cline with the
[webdatatools MCP server](https://github.com/paulet4a-commits/webdatatools-mcp-server).

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- [Chrome Web Store Extension Scraper (installs, ratings)](https://apify.com/webdatatools/chrome-web-store-extensions) — users, rating, version and developer per extension
- [Google Play Scraper](https://apify.com/webdatatools/google-play-scraper) — apps, ratings, installs, developer contact and reviews
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- [CrossRef DOI & Citation Metadata Lookup](https://apify.com/webdatatools/crossref-doi-lookup) — papers, authors, journals and citation counts
- [FDA Recalls & Adverse Events Monitor (openFDA)](https://apify.com/webdatatools/openfda-recall-monitor) — food, drug and device recalls from openFDA
- [iCal / ICS Calendar Feed to Events Extractor](https://apify.com/webdatatools/ical-calendar-extractor) — any public calendar feed as event rows
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- [Google Hotels Scraper (Prices, Ratings, Reviews)](https://apify.com/webdatatools/google-hotels-scraper) — hotel prices per night, stars, rating and reviews by city and dates
- [AliExpress Scraper (Search Products & Prices)](https://apify.com/webdatatools/aliexpress-scraper) — AliExpress search results with USD price, discount and rank
- [Lazada Scraper (Products, Prices, Sold, Ratings)](https://apify.com/webdatatools/lazada-scraper) — Lazada products in 6 countries with price, rating, units sold and seller

### Support and feedback

Hit a sitemap flavour it parses wrong, or want another extension counted? Open an issue on the **Issues** tab.

# Actor input Schema

## `sources` (type: `array`):

Enter the sitemaps to read, or just the domains, e.g. https://apify.com or https://www.allbirds.com/sitemap.xml. For a bare domain the Actor reads the Sitemap: lines of /robots.txt and falls back to /sitemap.xml, /sitemap\_index.xml, /sitemap-index.xml, /sitemap.xml.gz and /sitemap.txt. Sitemap indexes are followed into their child sitemaps automatically.

## `maxUrlsPerSource` (type: `integer`):

Enter how many URLs to keep per source, e.g. 5000. Counted across all child sitemaps of an index, so a 200,000-URL e-commerce site stops as soon as the cap is reached. Each URL is one billed dataset row.

## `urlFilter` (type: `string`):

Optional JavaScript regular expression; only URLs matching it are kept, e.g. /products/ for a Shopify catalogue or .pdf$ for documents. Leave empty to keep every URL. The pattern is matched against the full URL and is case-sensitive, so write \[Pp]roducts when you need both cases.

## `mode` (type: `string`):

Choose list to dump every URL found right now, or diff to compare this run with the previous one and label each URL new, unchanged or removed. Diff mode needs at least two runs of the same source to be useful.

## `diffStoreName` (type: `string`):

Name of the named key-value store that keeps the URL snapshot between runs in diff mode, e.g. sitemap-monitor. Keep the same name across scheduled runs so they compare against each other; use different names to track the same site in separate pipelines.

## `maxConcurrency` (type: `integer`):

Enter how many sitemap files to download in parallel, e.g. 5. A sitemap index can point at hundreds of child files, so raise this to 10-20 for large sites and lower it to 1-2 if a server starts returning 429.

## Actor input object example

```json
{
  "sources": [
    "https://apify.com",
    "https://www.allbirds.com/sitemap.xml"
  ],
  "maxUrlsPerSource": 1000,
  "urlFilter": "",
  "mode": "list",
  "diffStoreName": "sitemap-monitor",
  "maxConcurrency": 5
}
```

# Actor output Schema

## `urls` (type: `string`):

All extracted sitemap URLs — download as JSON, CSV, Excel or HTML.

# API

You can run this Actor programmatically using our API. Below are code examples in JavaScript, Python, and CLI, as well as the OpenAPI specification and MCP server setup.

## JavaScript example

```javascript
import { ApifyClient } from 'apify-client';

// Initialize the ApifyClient with your Apify API token
// Replace the '<YOUR_API_TOKEN>' with your token
const client = new ApifyClient({
    token: '<YOUR_API_TOKEN>',
});

// Prepare Actor input
const input = {
    "sources": [
        "https://apify.com",
        "https://www.allbirds.com/sitemap.xml"
    ],
    "maxUrlsPerSource": 1000,
    "mode": "list",
    "diffStoreName": "sitemap-monitor",
    "maxConcurrency": 5
};

// Run the Actor and wait for it to finish
const run = await client.actor("webdatatools/sitemap-extractor").call(input);

// Fetch and print Actor results from the run's dataset (if any)
console.log('Results from dataset');
console.log(`💾 Check your data here: https://console.apify.com/storage/datasets/${run.defaultDatasetId}`);
const { items } = await client.dataset(run.defaultDatasetId).listItems();
items.forEach((item) => {
    console.dir(item);
});

// 📚 Want to learn more 📖? Go to → https://docs.apify.com/api/client/js/docs

```

## Python example

```python
from apify_client import ApifyClient

# Initialize the ApifyClient with your Apify API token
# Replace '<YOUR_API_TOKEN>' with your token.
client = ApifyClient("<YOUR_API_TOKEN>")

# Prepare the Actor input
run_input = {
    "sources": [
        "https://apify.com",
        "https://www.allbirds.com/sitemap.xml",
    ],
    "maxUrlsPerSource": 1000,
    "mode": "list",
    "diffStoreName": "sitemap-monitor",
    "maxConcurrency": 5,
}

# Run the Actor and wait for it to finish
run = client.actor("webdatatools/sitemap-extractor").call(run_input=run_input)

# Fetch and print Actor results from the run's dataset (if there are any)
print(f"💾 Check your data here: https://console.apify.com/storage/datasets/{run.default_dataset_id}")
for item in client.dataset(run.default_dataset_id).iterate_items():
    print(item)

# 📚 Want to learn more 📖? Go to → https://docs.apify.com/api/client/python/docs/quick-start

```

## CLI example

```bash
echo '{
  "sources": [
    "https://apify.com",
    "https://www.allbirds.com/sitemap.xml"
  ],
  "maxUrlsPerSource": 1000,
  "mode": "list",
  "diffStoreName": "sitemap-monitor",
  "maxConcurrency": 5
}' |
apify call webdatatools/sitemap-extractor --silent --output-dataset

```

## MCP server setup

```json
{
    "mcpServers": {
        "apify": {
            "type": "http",
            "url": "https://mcp.apify.com/?tools=fetch-actor-details,webdatatools/sitemap-extractor"
        }
    }
}
```

The hosted server signs you in with OAuth on first connect, so no API token belongs in this config. Clients without OAuth support can send an `Authorization: Bearer <APIFY_API_TOKEN>` header instead, using a token from API & Integrations in Apify Console (https://console.apify.com/settings/integrations).

## OpenAPI specification

Download the OpenAPI definition: https://api.apify.com/v2/actors/7S7I3DEejoJsOwamc/builds/X8ShqB6CVuf5xMBBV/openapi.json