RSS Amplifier is a public directory of independent blog, podcast, music and video feeds operated by Profullstack, Inc., which fetches submitted feeds, indexes their posts and republishes the summaries the feeds themselves carry, alongside JSON, OPML and MCP endpoints. The operator documents an adaptive polling interval of roughly half the typical gap between a site's posts, bounded between hourly and every 90 days, and states that the fetcher sends If-None-Match and If-Modified-Since headers and stops crawling a feed after ten consecutive failures. The about page names RSSAmplifierBot as the token to use in robots.txt, which is not a substring of the user agent observed here, so a robots rule written to the operator's own instructions would not match this traffic. No IP ranges or reverse DNS hostnames are published for verification.

At a glance

Operator: Profullstack, Inc.
Type: Feed Reader

How Centinel checks it

User agent: The request calls itself this crawler. Anyone can send the same string.

RSS Amplifier reader publishes nothing Centinel can check a source against, so a match reports the name and leaves the source unconfirmed. The match tokens, verification domains, and address feeds are not published here.

Allowing or blocking it

The crawler object in the /validate response sets access_allowed to true only for a verified source that your tenant allowlists. A policy rule can allow or block this crawler by its category, Feed Reader.

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