Semantic Coherence: Obsidian – Signal Evidence & AI Readability

Obsidian

(https://obsidian.md) 📸 Data Snapshot: May 25, 2026
Semantic Coherence — The Lens

Pull the main entities out of the H1, then check whether they actually recur through the body. A page that announces one thing and then talks about another drifts. Headings with no real sentences underneath read as pseudo-substance.

Semantic Coherence Homepage promise vs. Sub-page reality.
10 Impact Weight: 20 / 100
50% Reputation

There is a severe technical disconnect between the homepage signal and the sub-page delivery in the provided crawl. The homepage H2s promise to Sync securely and Publish instantly, yet the corresponding URLs (/sync and /publish) return 404 errors with the message ‘You found an unresolved link.’ This creates a significant gap where the primary value propositions are non-functional or inaccessible from the navigation. The meta-description claims it is a free and flexible app, but without a functional download or pricing page in the data, the ‘free’ claim remains unverified substance.

Semantic Coherence is read from the heading hierarchy first: what each page announces in its H1 and headings, then whether the body actually delivers on it. Below is the structure the engine mapped, followed by the clean text to check for drift between promise and reality.

🏗️ Semantic Structure — heading hierarchy & page identity (the promise the page makes)
HOMEPAGE Obsidian – Sharpen your thinking (https://obsidian.md)
Title

Obsidian – Sharpen your thinking

Meta

The free and flexible app for your private thoughts.

H1 Sharpen your thinking.
H2 Spark ideas.
H2 Sync securely.
H2 Publish instantly.
H2 It’s your time to shine.
NAV_HEADER_HEADING_REPEATED_BODY_FOOTER 404 – Obsidian (https://obsidian.md/download/)
Title

404 – Obsidian

Meta

The free and flexible app for your private thoughts.

H1 You found an unresolved link.
NAV_HEADER_HEADING_REPEATED_BODY_FOOTER 404 – Obsidian (https://obsidian.md/publish/)
Title

404 – Obsidian

Meta

The free and flexible app for your private thoughts.

H1 You found an unresolved link.
NAV_HEADER_HEADING_REPEATED_BODY_FOOTER 404 – Obsidian (https://obsidian.md/sync/)
Title

404 – Obsidian

Meta

The free and flexible app for your private thoughts.

H1 You found an unresolved link.
📝 The Narrative — clean text per page (homepage promise vs. sub-page reality)
HOMEPAGE (https://obsidian.md) Obsidian – Sharpen your thinking
[H2] Spark ideas.

From personal notes to journaling, knowledge bases, and project management, Obsidian gives you the tools to come up with ideas and organize them.

Links

Create connections between your notes. Link anything and everything — ideas, people, places, books, and beyond. Invent your own personal Wikipedia.

In Meditations on First Philosophy the philosopher René Descartes describes a series of doubts about the nature of reality, arriving at the famous phrase:

[[I thin]]

I think therefore I am
Just think about it
Thinking, Fast and SlowBooks/
The ThingMovies/

He argues that doubting requires thinking, and therefore, the act of thinking confirms his existence.

Graph

Visualize the relationships between your notes. Find hidden patterns in your thinking through a visually engaging and interactive graph.

Canvas

An infinite space to research, brainstorm, diagram, and lay out your ideas. Canvas is a limitless playground for your mind. Learn more.

Lecture 1

Rationalists

Reason and innate knowledge → acquire knowledge
Fundamental truths and principles can be known independent of experience
A priori reasoning
Reason and deduction

Empiricists

Experience and sensory perception → acquire knowledge
All knowledge is derived from experience and observation of the external world
A posteriori reasoning

Cogito, ergo sum
In Meditations on First Philosophy the philosopher René Descartes describes a series of doubts about the nature of reality, arriving at the famous phrase:
I think therefore I am
He argues that doubting requires thinking, and therefore, the act of thinking confirms his existence.

Philosophers

[IMG: Image of Rene Descartes embedded in Obsidian Canvas]

[IMG: Image of Baruch Spinoza embedded in Obsidian Canvas]

[IMG: Wikipedia page about David Hume embedded in Obsidian Canvas]

Plugins

Build your ideal thinking space. With thousands of plugins and our open API, it’s easy to tailor Obsidian to fit your personal workflow. Learn more.

Community plugins

Calendar by Liam Cain
Calendar view of your daily notes.

Kanban by Matthew Meyers
Markdown-backed kanban boards.

Dataview by Michael Brenan
Advanced queries for the data-obsessed.

Outliner by Viacheslav Slinko
Work with your lists.

Tasks by Martin Schenck and Clare Macrae
Track tasks across your entire vault.
2710 chars
SUB-PAGE · THIN (https://obsidian.md/download/) 404 – Obsidian
404
[H1] You found an unresolved link.

We’d make note of this, but we don’t track visitors. If something seems broken, let us know.

Back to the home page.
171 chars
SUB-PAGE · THIN (https://obsidian.md/publish/) 404 – Obsidian
404
[H1] You found an unresolved link.

We’d make note of this, but we don’t track visitors. If something seems broken, let us know.

Back to the home page.
171 chars
SUB-PAGE · THIN (https://obsidian.md/sync/) 404 – Obsidian
404
[H1] You found an unresolved link.

We’d make note of this, but we don’t track visitors. If something seems broken, let us know.

Back to the home page.
171 chars