MS2021+ (2025-12-18)

First measurement
ICS 75
Accessibility 75

Score Calculation

100 − 15 = 85
Severity Unique types Weights Deduction
Serious 1 15 −15
Total deduction −15

Score is based on 1 unique critical and serious issue types. Same issue appearing multiple times counts as one. 26 unique moderate/minor issues are tracked but do not affect the score.
1 critical/serious issues marked as likely false-positive are not counted. Learn more about methodology

The original score at the time of measurement was 75. The breakdown above reflects updated methodology: Measurement tooling update (Lighthouse 13, Pa11y 9).

Tested Pages

https://iskp21.mssf.cz

WCAG 4.1.2
Criterion documentation 4.1.2

Technique description (EN)

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<iframe src="default.aspx" id="mainiframe" name="mainiframe" style="height: 100%; width: 100%;" frameborder="0"></iframe>
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<iframe src="default.aspx" id="mainiframe" name="mainiframe" style="height: 100%; width: 100%;" frameborder="0"></iframe>
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<iframe id="exportFrame" name="exportFrame" style="display: none;"></iframe>

Issues not affecting score

These are often not errors but recommendations that require manual review. They may indicate potential accessibility barriers that automated testing cannot fully evaluate.

WCAG 2.4.2
Criterion documentation 2.4.2

Technique description (EN)

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<title>
	ISKP21+
</title>

WCAG 3.2.1
Criterion documentation 3.2.1

Technique description (EN)

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<button onclick="showOrHide()" id="shown">Skrýt</button>
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<button onclick="closeIt()" id="close">X</button>
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<input type="hidden" id="uploadHidden" value="1">
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<input type="hidden" id="stornoHidden" value="">

WCAG 1.3.2
Criterion documentation 1.3.2

Technique description (EN)

WCAG 1.3.3
Criterion documentation 1.3.3

Technique description (EN)

WCAG 1.3.4
Criterion documentation 1.3.4

WCAG 1.4.1
Criterion documentation 1.4.1

Technique description (EN)

WCAG 1.4.4
Criterion documentation 1.4.4

Technique description (EN)

WCAG 1.4.10
Criterion documentation 1.4.10

Technique description (EN)

WCAG 1.4.11
Criterion documentation 1.4.11

Technique description (EN)

WCAG 1.4.12
Criterion documentation 1.4.12

Technique description (EN)

WCAG 1.4.13
Criterion documentation 1.4.13

Technique description (EN)

WCAG 2.1.4
Criterion documentation 2.1.4

WCAG 2.2.2
Criterion documentation 2.2.2

Technique description (EN)

WCAG 2.3.1
Criterion documentation 2.3.1

Technique description (EN)

WCAG 2.4.1
Criterion documentation 2.4.1

Technique description (EN)

WCAG 2.4.5
Criterion documentation 2.4.5

Technique description (EN)

WCAG 2.4.6
Criterion documentation 2.4.6

Technique description (EN)

WCAG 2.4.7
Criterion documentation 2.4.7

Technique description (EN)

WCAG 2.5.1
Criterion documentation 2.5.1

WCAG 2.5.2
Criterion documentation 2.5.2

WCAG 2.5.3
Criterion documentation 2.5.3

Technique description (EN)

WCAG 2.5.4
Criterion documentation 2.5.4

WCAG 3.1.2
Criterion documentation 3.1.2

Technique description (EN)

WCAG 3.2.3
Criterion documentation 3.2.3

Technique description (EN)

WCAG 3.2.4
Criterion documentation 3.2.4

Technique description (EN)

WCAG 4.1.3
Criterion documentation 4.1.3

False positive
Likely – not counted in score

WCAG 1.3.5
Criterion documentation 1.3.5

Technique description (EN)

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<input type="hidden" id="uploadHidden" value="1">
Selector: #stornoHidden
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<input type="hidden" id="stornoHidden" value="">

WCAG 4.1.2
Criterion documentation 4.1.2

Technique description (EN)

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Show HTML 
<iframe src="default.aspx" id="mainiframe" name="mainiframe" style="height: 100%; width: 100%;" frameborder="0"></iframe>