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

Table

readability-lxml 0.8.4.1 · Extractor / reading tool · French document

All 42 comparisons

Values must match exactly in the same row. An XML caption is not a column header; a Markdown table does not prove the input’s HTML semantics. Test scope.

A

VARIANT A

Headers with th + scope

Output produced

Expected value row : Exact values, in order · Column headers : Explicit relationship · Row header : Explicit relationship. Source

01 · The HTML change

<table><caption>Mesures synthétiques</caption><thead><tr><th class="case-cell" scope="col">Indicateur</th><th class="case-cell" scope="col">Unité</th><th class="case-cell" scope="col">Période</th><th class="case-cell" scope="col">Valeur</th></tr></thead><tbody><tr><th class="case-cell" scope="row">Temps de réponse</th><td class="case-cell">secondes</td><td class="case-cell">mai 2026</td><td class="case-cell">1,8</td></tr></tbody></table>

Exact input excerpt · Original HTML ↓

02 · What the tool produces HTML

…
<table><caption>Mesures synthétiques</caption><thead><tr><th class="case-cell" scope="col">Indicateur</th><th class="case-cell" scope="col">Unité</th><th class="case-cell" scope="col">Période</th><th class="case-cell" scope="col">Valeur</th></tr></thead><tbody><tr><th class="case-cell" scope="row">Temps de réponse</th><td class="case-cell">secondes</td><td class="case-cell">mai 2026</td><td class="case-cell">1,8</td></tr></tbody></table><p>La conclusion doit être relue avec son unité, sa période, son périmètre et sa réserve. La présence d’un mot dans une sortie ne suffit pas à prouver que la relation a été conservée.</p></article></main></bod
…

Excerpt identified by the corrected evaluator. Full output below.

03 · The documented observation

Expected value row
Exact values, in order
Column headers
Explicit relationship
Row header
Explicit relationship
Output structure
Present

Verdict source: results.json · table-fr-1 / readability_lxml

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/2/evaluation/relation/readability_lxml

Corrected verdict, unchanged
{
  "status": "ok",
  "tool_class": "content_extractor",
  "format": "html",
  "table_structure": "present",
  "expected_data_row": "exact_values_in_order",
  "column_header_relation": "explicit",
  "row_header_relation": "explicit",
  "column_labels": [
    "Indicateur",
    "Unité",
    "Période",
    "Valeur"
  ],
  "data_values": [
    "Temps de réponse",
    "secondes",
    "mai 2026",
    "1,8"
  ],
  "evidence": {
    "header_row": "<th class=\"case-cell\" scope=\"col\">Indicateur</th><th class=\"case-cell\" scope=\"col\">Unité</th><th class=\"case-cell\" scope=\"col\">Période</th><th class=\"case-cell\" scope=\"col\">Valeur</th>",
    "data_row": "<th class=\"case-cell\" scope=\"row\">Temps de réponse</th><td class=\"case-cell\">secondes</td><td class=\"case-cell\">mai 2026</td><td class=\"case-cell\">1,8</td>",
    "table_excerpt": "<table><caption>Mesures synthétiques</caption><thead><tr><th class=\"case-cell\" scope=\"col\">Indicateur</th><th class=\"case-cell\" scope=\"col\">Unité</th><th class=\"case-cell\" scope=\"col\">Période</th><th class=\"case-cell\" scope=\"col\">Valeur</th></tr></thead><tbody><tr><th class=\"case-cell\" scope=\"row\">Temps de réponse</th><td class=\"case-cell\">secondes</td><td class=\"case-cell\">mai 2026</td><td class=\"case-cell\">1,8</td></tr></tbody></table>"
  },
  "output_field": "additional_extractors.readability_lxml.html",
  "output_sha256": "2eb3e843c7724677708024385a99834be6b31ad707a1af7450993898dfcfe00b",
  "source_column_headers_explicit": true
}
Complete studied output field

additional_extractors.readability_lxml.html

<div><body id="readabilityBody"><main><article><h1>Protocole hors ligne de conservation des relations</h1><p>Ce document synthétique sert à comparer deux balisages à texte, ordre, classes et environnement identiques. Les données sont fictives et ne décrivent ni Edikka ni un client.</p><h2>Mesures synthétiques</h2><table><caption>Mesures synthétiques</caption><thead><tr><th class="case-cell" scope="col">Indicateur</th><th class="case-cell" scope="col">Unité</th><th class="case-cell" scope="col">Période</th><th class="case-cell" scope="col">Valeur</th></tr></thead><tbody><tr><th class="case-cell" scope="row">Temps de réponse</th><td class="case-cell">secondes</td><td class="case-cell">mai 2026</td><td class="case-cell">1,8</td></tr></tbody></table><p>La conclusion doit être relue avec son unité, sa période, son périmètre et sa réserve. La présence d’un mot dans une sortie ne suffit pas à prouver que la relation a été conservée.</p></article></main></body></div>
Archived version and options

readability-lxml 0.8.4.1 · Execution 2026-09-20

{
  "version": "0.8.4.1",
  "configuration": "No configuration field in this output; consult the archived runner."
}

Archived runner · Python options

SHA-256 hashes
HTML input
7e19912f8f4337ceedbdb6b7d9cc0b43aebf2ed8f72d359f411e9a725142c556
Evaluated output field
2eb3e843c7724677708024385a99834be6b31ad707a1af7450993898dfcfe00b

Complete raw output file ↗

B

VARIANT B

Ordinary td cells

Output produced

Expected value row : Exact values, in order · Column headers : Relationship not demonstrated · Row header : Relationship not demonstrated. Source

01 · The HTML change

<table><caption>Mesures synthétiques</caption><thead><tr><td class="case-cell">Indicateur</td><td class="case-cell">Unité</td><td class="case-cell">Période</td><td class="case-cell">Valeur</td></tr></thead><tbody><tr><td class="case-cell">Temps de réponse</td><td class="case-cell">secondes</td><td class="case-cell">mai 2026</td><td class="case-cell">1,8</td></tr></tbody></table>

Exact input excerpt · Original HTML ↓

02 · What the tool produces HTML

…
<table><caption>Mesures synthétiques</caption><thead><tr><td class="case-cell">Indicateur</td><td class="case-cell">Unité</td><td class="case-cell">Période</td><td class="case-cell">Valeur</td></tr></thead><tbody><tr><td class="case-cell">Temps de réponse</td><td class="case-cell">secondes</td><td class="case-cell">mai 2026</td><td class="case-cell">1,8</td></tr></tbody></table><p>La conclusion doit être relue avec son unité, sa période, son périmètre et sa réserve. La présence d’un mot dans une sortie ne suffit pas à prouver que la relation a été conservée.</p></article></main></body></div>

Excerpt identified by the corrected evaluator. Full output below.

03 · The documented observation

Expected value row
Exact values, in order
Column headers
Relationship not demonstrated
Row header
Relationship not demonstrated
Output structure
Present

Verdict source: results.json · table-fr-2 / readability_lxml

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/3/evaluation/relation/readability_lxml

Corrected verdict, unchanged
{
  "status": "ok",
  "tool_class": "content_extractor",
  "format": "html",
  "table_structure": "present",
  "expected_data_row": "exact_values_in_order",
  "column_header_relation": "not_explicit",
  "row_header_relation": "not_explicit",
  "column_labels": [
    "Indicateur",
    "Unité",
    "Période",
    "Valeur"
  ],
  "data_values": [
    "Temps de réponse",
    "secondes",
    "mai 2026",
    "1,8"
  ],
  "evidence": {
    "header_row": "<td class=\"case-cell\">Indicateur</td><td class=\"case-cell\">Unité</td><td class=\"case-cell\">Période</td><td class=\"case-cell\">Valeur</td>",
    "data_row": "<td class=\"case-cell\">Temps de réponse</td><td class=\"case-cell\">secondes</td><td class=\"case-cell\">mai 2026</td><td class=\"case-cell\">1,8</td>",
    "table_excerpt": "<table><caption>Mesures synthétiques</caption><thead><tr><td class=\"case-cell\">Indicateur</td><td class=\"case-cell\">Unité</td><td class=\"case-cell\">Période</td><td class=\"case-cell\">Valeur</td></tr></thead><tbody><tr><td class=\"case-cell\">Temps de réponse</td><td class=\"case-cell\">secondes</td><td class=\"case-cell\">mai 2026</td><td class=\"case-cell\">1,8</td></tr></tbody></table>"
  },
  "output_field": "additional_extractors.readability_lxml.html",
  "output_sha256": "4e8bf750b5afca1e10f4df92710003973cba39edcf2d76115763318902ffe514",
  "source_column_headers_explicit": false
}
Complete studied output field

additional_extractors.readability_lxml.html

<div><body id="readabilityBody"><main><article><h1>Protocole hors ligne de conservation des relations</h1><p>Ce document synthétique sert à comparer deux balisages à texte, ordre, classes et environnement identiques. Les données sont fictives et ne décrivent ni Edikka ni un client.</p><h2>Mesures synthétiques</h2><table><caption>Mesures synthétiques</caption><thead><tr><td class="case-cell">Indicateur</td><td class="case-cell">Unité</td><td class="case-cell">Période</td><td class="case-cell">Valeur</td></tr></thead><tbody><tr><td class="case-cell">Temps de réponse</td><td class="case-cell">secondes</td><td class="case-cell">mai 2026</td><td class="case-cell">1,8</td></tr></tbody></table><p>La conclusion doit être relue avec son unité, sa période, son périmètre et sa réserve. La présence d’un mot dans une sortie ne suffit pas à prouver que la relation a été conservée.</p></article></main></body></div>
Archived version and options

readability-lxml 0.8.4.1 · Execution 2026-09-20

{
  "version": "0.8.4.1",
  "configuration": "No configuration field in this output; consult the archived runner."
}

Archived runner · Python options

SHA-256 hashes
HTML input
1e0a3b0807f57d794396fce3fe07c0259b8c3c4c40be85cea27483f2833516b1
Evaluated output field
4e8bf750b5afca1e10f4df92710003973cba39edcf2d76115763318902ffe514

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. ↗