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Verification records what our published tests found on a specific version at a specific date. It is not a warranty, and it does not certify that software is free of defects.

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Catalogue/Apps/Dualmark CLI

Dualmark CLI

dualmark · App

Dualmark CLI is a conformance test runner for the AEO Specification. Given a page URL, it checks that a markdown twin of the page is reachable, served as markdown with the expected headers and advertised from the HTML page, then tests whether requests from the GPTBot user agent or with a markdown Accept header receive markdown. It prints a score and level, can emit JSON, and exits with a non-zero code when the page falls below the passing threshold, so it can run in CI.

Written by ooruby from the README of @dualmark/cli 0.11.0.

Not claimed by its maker. Is this yours? Prove it and answer the findings

Why it's useful

Shows whether a page serves a markdown version to the GPTBot user agent and to clients that ask for markdown.

What you could do with it

  1. 1Run it against a blog post URL to see which markdown and header checks the page passes.
  2. 2Skip the content negotiation checks for a static site that serves markdown only at fixed addresses.
  3. 3Add it to a CI pipeline so the build fails when a page scores below the passing level.

Written from its documentation: what it says it can do, not what our checks found.

DUappDeveloper tools

Maintenance

Not measured

No release date is on record for this package yet. The nightly publisher check records one as it reaches each npm package, about once every ten nights.

Release activity only: it says nothing about quality or safety, and a finished small package can be fine without releases. How it is measured

Not yet tested
Data handling disclosed
finding
no statement of what it reads, writes or sends (README.md)

Published because it was found. A finding is information about where the limits are, not a verdict that the software is unsafe.

What this does not cover

  • ·Everything. Treat it as you would software from anywhere else.

Receipt history: every signed receipt for every version of this listing, and what changed between them.

In its maker's words

Conformance test runner for the AEO spec. `dualmark verify <url>` scores any site against the AEO Specification.

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How far this has been checked

Static scanned

What it establishes
Its published package, or for a hosted server its source repository at a recorded commit, was read file by file, without running it, by every check in our current scan.
What it does not
How it behaves when it runs, or anything the scan does not read yet: several rubric checks, the repository's history, and compiled code in folders named dist or build. For a hosted server, that the endpoint runs the code that was read. The ooruby Index sets out exactly what was read.
Exactly what was read
Version 0.11.0, the file with digest sha512-fnF/7AJ4XBemweTD4kzDunmIzaZ2aW+LQwTAQnet10V8104MnR9War1OucUeQ4dLbO6OC2bK+ysXys+Ingkz0w==, as the registry publishes it. A published version cannot be replaced, so this names the same bytes for anyone who checks.
Authentication
Runs locally. No hosted endpoint is listed for this package. You run it on your own machine, so there is no endpoint of ours to authenticate against.
How the rungs work

Adding it

Run it with:

npx -y @dualmark/cli@0.11.0

Pinned to 0.11.0, which is the version the findings above were found in. Drop the version to take whatever is newest, and the report on this page stops describing what you installed.

Where this came from

Registry
npm
Package
@dualmark/cli
Version read
0.11.0
Resolved
2026-10-10
Open the source(opens in a new tab)

Built from source, attested

npm publishes a signed statement that this exact package was built from the repository below, at this commit. It is verifiable without taking our word for it.

Repository
github.com/dodopayments/dualmark
Commit
edc8416216d3
Built by
github.com/actions/runner/github-hosted
Registry publish attestation
signed by npm · 2026-10-10
Checked
2026-10-10

The badge, if this is your listing

It renders the current rung (static scanned) and links back here, where what that does and does not establish is one click away. It updates itself as the evidence deepens.

[![ooruby: static scanned](https://ooruby.com/api/badge/dualmark-cli)](https://ooruby.com/market/dualmark-cli)

About this listing

Kind
App
Category
Developer tools
Pricing
Free
Sandbox
No
Hosted
No
Updated
2026-10-05
Price
Free
Get it freeVisit maker
Rating
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Verification records what our published tests found on a specific version at a specific date. It is not a warranty, and it does not certify that software is free of defects.