OPEN INSTRUMENTS

SEMANTIC HTML · ARCHIVED RESULTS

Semantic HTML.
Compare what tools preserve.

The same text. One markup change.
Two outputs to inspect, with evidence.

Explore an archived run from 20 September 2026, re-evaluated on 21 September. No extraction runs during your visit.

EXPLORE THE CONTROLLED CORPUS

Heading

jusText 3.0.2 · Extractor / reading tool · English document

All 42 comparisons

The check distinguishes heading text, markup and level. It does not evaluate whether content belongs to a section. Test scope.

A

VARIANT A

An h2 heading

No output

Heading text : Not evaluated. Source

01 · The HTML change

<h2 class="case-marker">Measurement conditions</h2>

Exact input excerpt · Original HTML ↓

02 · What the tool produces TEXT

No output. The relationship remains unevaluated.

Archived status; no relationship inferred. Full output below.

03 · The documented observation

Heading text
Not evaluated
Heading markup
Not evaluated
Heading level
Not evaluated
Section membership
Not evaluated

Verdict source: results.json · heading-en-1 / justext

Inspect the full evidence

The verdicts above come from corrected results.json. The raw file’s evaluation fields are historical and are not authoritative here.

results.json/cases/6/evaluation/relation/justext

Corrected verdict, unchanged
{
  "status": "no_output",
  "tool_class": "content_extractor",
  "format": "text",
  "row_header_relation": "not_evaluated",
  "column_header_relation": "not_evaluated",
  "evidence": null
}
Complete studied output field

additional_extractors.justext.text

No archived output for this field.
Archived version and options

jusText 3.0.2 · Execution 2026-09-20

{
  "version": "3.0.2",
  "configuration": "No configuration field in this output; consult the archived runner."
}

Archived runner · Python options

SHA-256 hashes
HTML input
e4c8dd8b2ea87f113776cfe6a51420c484a24c97750639347c1ddec38b1445c1
Evaluated output field
Not evaluated

Complete raw output file ↗

B

VARIANT B

A div block

No output

Heading text : Not evaluated. Source

01 · The HTML change

<div class="case-marker">Measurement conditions</div>

Exact input excerpt · Original HTML ↓

02 · What the tool produces TEXT

No output. The relationship remains unevaluated.

Archived status; no relationship inferred. Full output below.

03 · The documented observation

Heading text
Not evaluated
Heading markup
Not evaluated
Heading level
Not evaluated
Section membership
Not evaluated

Verdict source: results.json · heading-en-2 / justext

Inspect the full evidence

The verdicts above come from corrected results.json. The raw file’s evaluation fields are historical and are not authoritative here.

results.json/cases/7/evaluation/relation/justext

Corrected verdict, unchanged
{
  "status": "no_output",
  "tool_class": "content_extractor",
  "format": "text",
  "row_header_relation": "not_evaluated",
  "column_header_relation": "not_evaluated",
  "evidence": null
}
Complete studied output field

additional_extractors.justext.text

No archived output for this field.
Archived version and options

jusText 3.0.2 · Execution 2026-09-20

{
  "version": "3.0.2",
  "configuration": "No configuration field in this output; consult the archived runner."
}

Archived runner · Python options

SHA-256 hashes
HTML input
4173dad4d266784865a6ed57bddde0f63604d5b192c97e4b434405a9427216ed
Evaluated output field
Not evaluated

Complete raw output file ↗

Identical text and isolated intervention within this pair, according to the protocol witnesses. Translations are not independent observations. View pair witnesses.

LOOK FURTHER

Every result has a scope.

These observations do not rank tools. They do not measure overall accessibility, search ranking, or understanding or citation by AI.

Claims excluded by the protocol
The eight real pagesA separate corpus, with documented instability. ↗Evaluator counter-testsChecking evaluation without rerunning extractors. ↗Reproduce the runsA local procedure, separate from this interface. ↗