What actually differs between the three syndication formats, an element-by-element mapping, the autodiscovery markup that is the part actually scored, and why the rubric takes a position on full text.
301, 302, 307 and 308, which preserve the HTTP method, when a canonical or a 410 is the right tool instead, how to build a redirect map for a migration, and the one command that verifies it.
Material connections, what the 2023 revision defined as clear and conspicuous, why a footer link is not enough, wording that a reader will actually parse, and why rel attributes satisfy Google rather than the FTC.
SPF, DKIM and DMARC, what alignment actually is and why it is the part that breaks, the 0.3 percent spam threshold, one-click unsubscribe, and how to verify all of it from outside an account.
The three metrics, their exact good and poor thresholds, why they are assessed at the 75th percentile of real user data over a rolling 28-day window, and why a Lighthouse score is not the same thing.
Ghost wins on time to publish and default Craft. WordPress wins on the hub layer, the commercial surfaces and the pricing model. Compared dimension by dimension against the rubric.
The export file is the easy half. What Substack leaves out, the order the Stripe steps have to happen in, the redirect rule that survives the /p/ collision with Ghost, and a verification checklist.
Seven platforms ranked on the three costs that matter: the bill, the share of what you earn, and what the platform keeps when you leave. With the crossover arithmetic and the exit cost itemised.
