What is Existence Compiler?

It is an analysis system that takes your project URL and returns a Digital Existence Score plus an actionable report. It evaluates technical presence, semantic clarity, AI readability, trust signals, and distribution readiness.

What is the Digital Existence Score?

It is a score from 0 to 100 calculated by deterministic rules. It measures how detectable, understandable, and shareable your project is for search engines, AI agents, and social platforms.

Does it guarantee traffic, sales, or indexing?

No. Existence Compiler diagnoses technical and semantic gaps. Improving those conditions increases the likelihood of being discovered, but does not guarantee specific outcomes.

Which pages does it analyze?

In the current MVP it analyzes the main page of the URL you provide, plus checks for common pages such as /about, /pricing, /faq, /contact, /docs, /changelog, /security, /privacy, and /terms.

Yes. The Free plan is completely free and requires no account. You can analyze any URL and download the report in Markdown or JSON.

Does it store my data?

Existence Compiler stores minimal analysis metadata server-side to enable before/after comparisons, such as URL, score, timestamp and a compact report summary. Shared reports are stored with a 30-day TTL. It does not store raw HTML, full page text, raw schema dumps or unnecessary crawl payloads. No account is required for the free analysis flow.

Does it work with SPAs or React/Vue/Angular apps?

The analysis may be incomplete for JavaScript-rendered apps. The crawler fetches the initial HTML without executing JavaScript, so metadata injected only at runtime may not be detected.

It is a simple text file that helps AI systems understand what your project is and how to reference it. Existence Compiler generates a ready-to-use llms.txt snippet based on your detected content.

Does it use AI for analysis?

The main analysis is deterministic (rule-based). An optional AI enhancement layer can generate a deeper semantic summary if enabled, but the core report and score do not require it.

Compare

Existence Compiler vs ChatGPT alone

ChatGPT is a general-purpose AI assistant. Existence Compiler is a URL analysis system. They solve different problems. Here is where the distinction matters.

The core difference

ChatGPT can suggest metadata if you paste the HTML of your page into the prompt. That requires you to know which HTML to look at, which signals matter, and how to interpret the response — then repeat the process manually for every page and every update. There is no score, no consistent output format, and no Fix Pack to hand to a developer.

Existence Compiler crawls your live URL automatically, computes a reproducible Digital Existence Score across five dimensions, and produces a structured Fix Pack with ready-to-paste code — in seconds, on any URL, with no prompt engineering.

Feature comparison

FeatureECChatGPT

Live URL crawl

ChatGPT does not fetch URLs; you must paste the HTML manually.

✓

—

Reproducible score

ChatGPT responses vary by prompt, session, and model version.

✓

—

Structured Fix Pack

ChatGPT output is conversational, not a structured exportable document.

✓

—

Executive Report

No standardized report format — output depends on the prompt.

✓

—

schema.org generation

ChatGPT can write schema.org if prompted correctly, but does not audit your live page.

✓

General-purpose reasoning

ChatGPT is better for open-ended questions, writing, and reasoning tasks.

—

✓

Free to use

Both have free tiers; Existence Compiler requires no account for the base analysis.

✓

When to use each

Existence Compiler

·Audit your live URL
·Generate a structured Fix Pack
·Get a reproducible score
·Produce a client-ready report

ChatGPT

·Open-ended questions and writing
·Refine copy after you have a brief
·Explain concepts and trade-offs
·One-off tasks without structure

Try Existence Compiler All comparisons

vs prompt library →vs AI course →See example output →