D3 by Observable
(https://d3js.org) 📸 Data Snapshot: May 26, 2026Inspect the JSON-LD. Is there an Organization or Person schema, and does it carry sameAs links to real external profiles (LinkedIn, socials)? Missing schema or no identity declaration signals an anonymous entity.
There is a notable identity gap as schema_json is null across all pages, missing Organization or SoftwareSourceCode structured data that would confirm its authority. While ‘The D3 team’ is mentioned, no individual experts are named or linked via Person schema, leaving the human authority behind the project unverified. The technical credibility is further damaged by the presence of 404 errors on core instructional pages.
The marketing tone claims users can ‘Connect to your data instantly’ and ‘Accelerate your team’s analysis’, yet the site fails to demonstrate this through live demos or screenshots in the provided data. The claim of ‘unparalleled flexibility’ is technically substantiated by the list of diverse layout algorithms, but the ‘without installing anything’ claim lacks a direct link to the live environment to prove the lack of friction.
Identity & Authority is read from the structured data first: whether the site declares who it is in machine-readable schema, with verifiable identity links. Below is the schema captured per page, then the external proof links that support (or fail to support) that identity.
🔗 Identity & Technical Layer — schema JSON-LD: identity chains, entity gaps
🛡️ Trust Signals — external proof links that back the declared identity
| Page | Reviews | Proof links |
|---|---|---|
| / (home) | 0 | 0 |
| /getting-started/ | 0 | 0 |
| /what-is-d3/ | 0 | 0 |
| /d3-selection/ | 1 | 0 |
This page presents a snapshot of public data from D3 by Observable, captured on May 26, 2026, to show how machine logic reads Identity & Authority signals into an AI reputation evaluation.
Purpose: This data is presented under “Fair Use” for the purpose of independent signal analysis, allowing readers to see the raw signals behind the reputation score.
Notice to D3 by Observable: This analysis is part of a non-adversarial audit conducted by 1 Euro SEO. The results are intended as professional feedback to help improve any website’s machine-readability and authority signals. The evaluation is free, and any company can request a fresh audit at any time.
Any company can use the insights for free and improve its voice. When a company has updated its content, it can always submit a new audit request, which will be reflected in a new current score.
To all users: You are encouraged to visit the live site at https://d3js.org to view the most current version of its content and see directly what this company is about and what it offers.