Litmus vs CartStack

The feed SparkPulse is crawling is Litmus's marketing blog, not a product changelog. The last ten entries are educational posts on deliverability, email design, and campaign best practices; none describes a change to the Litmus platform itself. Recent content clusters heavily on deliverability topics (Microsoft SNDS, spam filtering, subscriber engagement).

As a read on product direction, this feed carries little signal: it tracks content-marketing cadence, not shipping cadence. The editorial tilt toward deliverability shows where Litmus is positioning its pitch, but that is marketing emphasis rather than an observable product move. Without a genuine changelog source, the product's actual trajectory cannot be inferred from these entries.

Expect the feed to keep producing deliverability and email-design explainers at a steady blog cadence; these entries do not support a confident prediction about the product itself, and the crawl source should be pointed at a real changelog before trajectory calls are trusted.