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Crawler policy

Technical information about how Moderator crawls and indexes content from the open web.

User-Agent

Our crawler identifies itself with the following User-Agent string:

FriendlyModeratorBot/1.0 (+https://moderator.so/policies/crawling; contact@moderator.so)

The User-Agent includes a link to this policy page and contact information.

robots.txt compliance

Moderator fully respects robots.txt directives. We check robots.txt before crawling and honor all path-level blocking rules.

  • We check robots.txt for every domain we crawl
  • We honor Disallow rules for our User-Agent and the wildcard (*)
  • We respect Crawl-delay directives (clamped between 1–60 seconds)
  • We refresh robots.txt weekly to stay current with changes

Rate limiting & back-off

We enforce conservative rate limits to avoid impacting your servers.

  • Default delay: 10 seconds between requests per domain
  • We respect Crawl-delay if specified in robots.txt
  • On server errors (5xx), we back off and retry later
  • Each subdomain is treated separately (e.g., www.example.com vs blog.example.com)

Allowing Moderator in robots.txt

To explicitly allow our crawler, add the following to your robots.txt:

User-agent: FriendlyModeratorBot
Allow: /
Crawl-delay: 10

If no robots.txt is present or returns 404, we assume access is allowed with a default 10-second delay.

Blocking Moderator

To block our crawler entirely, add the following to your robots.txt:

User-agent: FriendlyModeratorBot
Disallow: /

You can also contact us directly at contact@moderator.so to request removal.

RSS: the best way to be indexed

The most reliable way for publishers to make content available to Moderator is through RSS feeds. RSS is an open standard for web content syndication that allows you to control exactly what metadata is shared—titles, descriptions, publication dates, and links—without exposing full article text.

RSS autodiscovery

To help Moderator (and other aggregators) find your feed automatically, add an RSS autodiscovery link to your site's HTML <head>:

<link rel="alternate" type="application/rss+xml" title="Your Site Name" href="https://example.com/feed.xml" />

This meta tag tells feed readers where to find your RSS feed. Most CMS platforms like WordPress, Ghost, and Hugo include this by default.

Why RSS works well with Moderator

  • You control exactly what content is shared (title, description, link)
  • Moderator indexes feed metadata instead of crawling full pages
  • Reduces crawl load on your servers
  • New content is discovered faster and more reliably

For the full RSS 2.0 specification, see the RSS Advisory Board specification.