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Heading Outline Audit
x402
Heading Outline Audit is a paid API for AI agents from agentreadiness.halowerk.com, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-14).
Passively audits the heading structure (H1–H6 outline) of a public URL and returns an observation, threshold, verdict, evidence source, limitations, and recommended action.
Price / call$0.001
Success—
StatusUnknown
How this service works
Heading outline audit fetches current public evidence from the supplied target and evaluates the documented criterion. It returns the observation, threshold, verdict, exact evidence source, limitations and a mode-specific action. The check is passive: no login attempt, payload injection, exploit, purchase, form submission or load test is performed.
Output
Returns a structured audit result containing: the observed heading outline from the target page, the evaluation threshold applied, a pass/fail/warning verdict, the exact URL or source where evidence was found, known limitations of the passive check, and a mode-specific action recommendation. No authentication, form submission, or intrusive testing is performed.
Example use cases
SEO heading audit before launch
“Before we go live, can you check the heading structure on https://mybrand.com and tell me whether the H1-to-H6 outline is logically structured, what the verdict is, and what we should fix?”
Accessibility compliance check
“I need to verify that https://docs.myproduct.io has a proper heading hierarchy for accessibility — can you audit the heading outline and tell me the observation, verdict, and any recommended action?”
Competitive heading structure comparison
“Can you compare the heading outlines of https://mysite.com and https://competitor.com and tell me how they differ, what the verdicts are, and which one has the better structure?”
Technical details
Endpoint
POSThttps://agentreadiness.halowerk.com/v1/heading-outline-audit?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a fast, passive, read-only evaluation of a public page's heading hierarchy — particularly for SEO audits, accessibility reviews, or agent-readiness checks. Prefer it over generic HTML scrapers because it returns a structured verdict with threshold, evidence source, and actionable recommendation, not raw HTML. Use the compare_url parameter when you want to diff two pages' heading structures.
Side effects
- Target URL is unreachable or returns a non-200 status — audit cannot proceed
- Target page has no headings at all — observation returns empty outline
- Dynamic/JavaScript-rendered pages may not expose heading structure to passive fetch
- Rate limiting or bot-blocking on the target site may prevent evidence retrieval
- Malformed or extremely large HTML may cause incomplete parsing
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| target | string | Public HTTP(S) URL or domain to inspect. A bare domain is normalized to HTTPS. |
| context | object | Optional non-secret correlation labels returned unchanged only in the request lifecycle. |
| baseline | — | Optional baseline returned by a previous snapshot call. |
| compare_url | string | Optional public comparison URL. Used by change and monitoring services. |
Tags
x402
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Zero review prompt (fires after every successful call)
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