Piano ESP is a content fetcher operated by Piano Software as part of its email service provider and newsletter automation platform, retrieving article pages so their content can be assembled into personalized newsletters and push notifications. Piano publishes no user-agent specification, IP range list, or reverse-DNS verification method for this crawler.

At a glance

Operator: Piano Software
Type: Aggregator

How Centinel checks it

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

Piano ESP 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, Aggregator.

Back to the crawler catalog