# Monitor Competitor Blog Posts Published Since a Date

**Use case:** 

Uses the lastmod date filter to return only blog post URLs a competitor added or updated after a chosen date, skipping older child sitemaps entirely. Built for content marketers and competitive analysts tracking publishing cadence without re-crawling the whole blog each time. Output: url, lastmod, changefreq, sourceSitemap.

## Input

```json
{
  "startUrls": [
    "blog.hubspot.com",
    "moz.com",
    "ahrefs.com"
  ],
  "maxUrlsPerSite": 300,
  "includePatterns": [],
  "excludePatterns": [],
  "lastmodAfter": "2026-09-01",
  "includeExtensions": true,
  "maxConcurrency": 10,
  "proxyConfiguration": {
    "useApifyProxy": true
  }
}
```

## Output

```json
{
  "url": {
    "label": "URL",
    "format": "link"
  },
  "lastmod": {
    "label": "Last modified"
  },
  "changefreq": {
    "label": "Change freq"
  },
  "priority": {
    "label": "Priority",
    "format": "number"
  },
  "site": {
    "label": "Site"
  },
  "sourceSitemap": {
    "label": "Sitemap",
    "format": "link"
  },
  "depth": {
    "label": "Depth",
    "format": "number"
  },
  "error": {
    "label": "Error"
  },
  "status": {
    "label": "HTTP",
    "format": "number"
  }
}
```

## About this Actor

This example demonstrates how to use [Sitemap URL Extractor - All URLs from sitemap.xml & robots.txt](https://apify.com/tenfoldfleet/sitemap-url-extractor.md) with a specific input configuration. Visit the [Actor detail page](https://apify.com/tenfoldfleet/sitemap-url-extractor.md) to learn more, explore other use cases, and run it yourself.


## How to integrate an Actor?

This Task's input is already configured above. Use it as-is rather than inventing a new one.

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 full API examples (JavaScript, Python, CLI, MCP, OpenAPI), see this Task's Actor page: https://apify.com/tenfoldfleet/sitemap-url-extractor.md

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`).