What happened to GoatStack?

discontinued The URL on file (https://goatstack.ai/) did not respond across three consecutive checks; the streak completed on 2026-09-20.

The address on file matched GoatStack's own domain with high confidence, so this observation is reported about GoatStack directly. See the methodology for how the match is made.

The vendor's own description, unedited:
GoatStack is an Artificial Intelligence-powered newsletter tool. It is designed to assist you in refining your access to knowledge by personalizing a curated collection of the latest updates on chosen topics. The key feature of GoatStack is its AI Agent, which is programmed to sift through and analy...

Live alternatives

No active same-category alternatives in the registry yet. The tools index carries everything else that is live.

How this was decided

Not an editorial call. The URL on file failed three consecutive checks, with a confirmation re-probe before the streak counted (a bot-wall response never counts as one), and the 3-miss rule marks the listing discontinued automatically. If the URL responds again, the registry restores it on its own: warn first, then active. Both directions are recorded as events.

Spot an error? Tell us. Corrections to the record append, they never rewrite.