Email
Postmarkhttps://postmarkapp.com
Postmarkhttps://postmarkapp.com68/100
C#2 of 4 in email
Discoverability
38/50Discovery14/18
Content6/12
GEO90%18/20
Σ layers38 / 50
Agent usability
30/50Capability surface2/18
Usability88%28/32
Σ layers30 / 50
Scored audit19 checks · 8 dimensions
JSON-LD structured data
schema.org SoftwareApplication / Organization so models read entity facts directly.
6/6
Markdown content negotiation
Accept: text/markdown returns clean markdown, not a JS shell.
0/3
/index.md fallback
Markdown homepage at /index.md, directly fetchable as plain text.
0/3