www.cdc.gov: technology ↔ issues
Accessibility findings that appear disproportionately on pages running a given technology, across the 271 page(s) in 2026-W30 where both technology detection and an accessibility engine ran. Lift is how many times more likely a finding is on pages with the technology than on pages overall — a value of 2× means twice the baseline rate.
This is an association , not proof of cause. Technologies that are detected on the same set of pages (e.g. a CMS, its host, and its language) will share identical lift values; the listing groups by technology but cannot tell which one in a co-located stack is responsible. Treat high-lift pairs as leads for a human to confirm — a barrier that recurs with the same technology, especially across multiple sites, is likely a bug in that technology rather than in any one page's content.
Moment.js 9 pages
Findings over-represented on pages running Moment.js (lift ≥ 1, ≥5 pages support).
Finding
Lift
On tech pages
On all pages
Associate every form control with a <label> (via for/id) or an aria-label/aria-labelledby. (axe)
27.10×
9 / 9
10
Form field has accessible name (alfa)
25.09×
5 / 9
6
Form field label is visible (alfa)
10.75×
5 / 9
14
Each page should have exactly one <main> landmark. (axe)
3.57×
9 / 9
76
Increase the contrast between text and its background to at least 4.5:1 (3:1 for large text) (axe)
3.40×
7 / 9
62
Text has minimum contrast ratio of 4.5:1 (alfa)
2.95×
5 / 9
51
Target size is at least 24×24 CSS pixels or has spacing (Minimum) (alfa)
2.64×
5 / 9
57
Text has enhanced contrast (alfa)
1.29×
5 / 9
117
DreamWeaver 14 pages
Findings over-represented on pages running DreamWeaver (lift ≥ 1, ≥5 pages support).
Finding
Lift
On tech pages
On all pages
Associate every form control with a <label> (via for/id) or an aria-label/aria-labelledby. (axe)
19.36×
10 / 14
10
Form field has accessible name (alfa)
16.13×
5 / 14
6
Form field label is visible (alfa)
11.06×
8 / 14
14
Increase the contrast between text and its background to at least 4.5:1 (3:1 for large text) (axe)
3.75×
12 / 14
62
Each page should have exactly one <main> landmark. (axe)
3.57×
14 / 14
76
Text has minimum contrast ratio of 4.5:1 (alfa)
3.04×
8 / 14
51
Target size is at least 24×24 CSS pixels or has spacing (Minimum) (alfa)
2.38×
7 / 14
57
No obsolete or deprecated elements are used (alfa)
2.30×
5 / 14
42
Link is distinguishable without relying on color (alfa)
1.76×
5 / 14
55
Text has enhanced contrast (alfa)
1.32×
8 / 14
117
YouTube 11 pages
Findings over-represented on pages running YouTube (lift ≥ 1, ≥5 pages support).
Finding
Lift
On tech pages
On all pages
Text has sufficient color contrast (Enhanced) (alfa)
2.80×
5 / 11
44
aria attribute is permitted for element role (alfa)
2.50×
7 / 11
69
When a landmark role/type repeats (e.g (axe)
2.16×
7 / 11
80
Scrolling content can be accessed by keyboard (alfa)
1.93×
8 / 11
102
Text has enhanced contrast (alfa)
1.68×
8 / 11
117
Target size is at least 44×44 CSS pixels (Enhanced) (alfa)
1.35×
8 / 11
146
D3 25 pages
Findings over-represented on pages running D3 (lift ≥ 1, ≥5 pages support).
Finding
Lift
On tech pages
On all pages
Headings are structured hierarchically (alfa)
2.71×
14 / 25
56
Use heading levels in order (h1 → h2 → h3) without skipping; structure, not size. (axe)
2.62×
23 / 25
95
Scrolling content can be accessed by keyboard (alfa)
1.59×
15 / 25
102
Text has enhanced contrast (alfa)
1.39×
15 / 25
117
Bootstrap 195 pages
Findings over-represented on pages running Bootstrap (lift ≥ 1, ≥5 pages support).
Finding
Lift
On tech pages
On all pages
Scrolling content can be accessed by keyboard (alfa)
1.39×
102 / 195
102
Text has sufficient color contrast (Enhanced) (alfa)
1.39×
44 / 195
44
Accessible name of link or button matches visible label (alfa)
1.39×
19 / 195
19
Remove or change the ARIA role — it isn't allowed on this element type. (axe)
1.39×
17 / 195
17
page-has-heading-one (axe)
1.39×
13 / 195
13
When a landmark role/type repeats (e.g (axe)
1.37×
79 / 195
80
aria attribute is permitted for element role (alfa)
1.37×
68 / 195
69
Presentational children of an element are not focusable (alfa)
1.33×
22 / 195
23
Text has enhanced contrast (alfa)
1.20×
101 / 195
117
jQuery 210 pages
Findings over-represented on pages running jQuery (lift ≥ 1, ≥5 pages support).
Finding
Lift
On tech pages
On all pages
Scrolling content can be accessed by keyboard (alfa)
1.29×
102 / 210
102
When a landmark role/type repeats (e.g (axe)
1.29×
80 / 210
80
aria attribute is permitted for element role (alfa)
1.29×
69 / 210
69
Text has sufficient color contrast (Enhanced) (alfa)
1.29×
44 / 210
44
Presentational children of an element are not focusable (alfa)
1.29×
23 / 210
23
Accessible name of link or button matches visible label (alfa)
1.29×
19 / 210
19
Remove or change the ARIA role — it isn't allowed on this element type. (axe)
1.29×
17 / 210
17
Form field label is visible (alfa)
1.29×
14 / 210
14
page-has-heading-one (axe)
1.29×
13 / 210
13
Associate every form control with a <label> (via for/id) or an aria-label/aria-labelledby. (axe)
1.29×
10 / 210
10
Form field has accessible name (alfa)
1.29×
6 / 210
6
Text has enhanced contrast (alfa)
1.20×
109 / 210
117
Table header has scope (alfa)
1.17×
10 / 210
11