www.cdc.gov: technology ↔ issues
Accessibility findings that appear disproportionately on pages running a given technology, across the 302 page(s) in 2026-W33 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 24 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)
12.58×
24 / 24
24
Form field has accessible name (alfa)
12.58×
7 / 24
7
empty-table-header (axe)
6.86×
6 / 24
11
Form field label is visible (alfa)
6.78×
7 / 24
13
Each page should have exactly one <main> landmark. (axe)
4.19×
24 / 24
72
Increase the contrast between text and its background to at least 4.5:1 (3:1 for large text) (axe)
3.67×
14 / 24
48
Text has minimum contrast ratio of 4.5:1 (alfa)
3.04×
7 / 24
29
Target size is at least 24×24 CSS pixels or has spacing (Minimum) (alfa)
3.04×
7 / 24
29
Link is distinguishable without relying on color (alfa)
2.70×
6 / 24
28
Text has enhanced contrast (alfa)
1.10×
7 / 24
80
DreamWeaver 27 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)
11.19×
24 / 27
24
Form field has accessible name (alfa)
11.19×
7 / 27
7
Form field label is visible (alfa)
6.88×
8 / 27
13
empty-table-header (axe)
6.10×
6 / 27
11
Each page should have exactly one <main> landmark. (axe)
4.19×
27 / 27
72
Increase the contrast between text and its background to at least 4.5:1 (3:1 for large text) (axe)
3.96×
17 / 27
48
Text has minimum contrast ratio of 4.5:1 (alfa)
3.09×
8 / 27
29
Target size is at least 24×24 CSS pixels or has spacing (Minimum) (alfa)
3.09×
8 / 27
29
Link is distinguishable without relying on color (alfa)
2.80×
7 / 27
28
Text has enhanced contrast (alfa)
1.12×
8 / 27
80
Target size is at least 44×44 CSS pixels (Enhanced) (alfa)
1.01×
8 / 27
89
D3 21 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)
4.42×
8 / 21
26
Use heading levels in order (h1 → h2 → h3) without skipping; structure, not size. (axe)
3.74×
19 / 21
73
Scrolling content can be accessed by keyboard (alfa)
1.99×
9 / 21
65
Text has enhanced contrast (alfa)
1.62×
9 / 21
80
Target size is at least 44×44 CSS pixels (Enhanced) (alfa)
1.45×
9 / 21
89
Bootstrap 231 pages
Findings over-represented on pages running Bootstrap (lift ≥ 1, ≥5 pages support).
Finding
Lift
On tech pages
On all pages
When a landmark role/type repeats (e.g (axe)
1.31×
94 / 231
94
Scrolling content can be accessed by keyboard (alfa)
1.31×
65 / 231
65
aria attribute is permitted for element role (alfa)
1.31×
48 / 231
48
Text has sufficient color contrast (Enhanced) (alfa)
1.31×
31 / 231
31
Accessible name of link or button matches visible label (alfa)
1.31×
18 / 231
18
Remove or change the ARIA role — it isn't allowed on this element type. (axe)
1.31×
16 / 231
16
Presentational children of an element are not focusable (alfa)
1.31×
9 / 231
9
page-has-heading-one (axe)
1.20×
23 / 231
25
Text has enhanced contrast (alfa)
1.06×
65 / 231
80
Table header has scope (alfa)
1.02×
7 / 231
9
jQuery 258 pages
Findings over-represented on pages running jQuery (lift ≥ 1, ≥5 pages support).
Finding
Lift
On tech pages
On all pages
When a landmark role/type repeats (e.g (axe)
1.17×
94 / 258
94
Scrolling content can be accessed by keyboard (alfa)
1.17×
65 / 258
65
aria attribute is permitted for element role (alfa)
1.17×
48 / 258
48
Text has sufficient color contrast (Enhanced) (alfa)
1.17×
31 / 258
31
Associate every form control with a <label> (via for/id) or an aria-label/aria-labelledby. (axe)
1.17×
24 / 258
24
Accessible name of link or button matches visible label (alfa)
1.17×
18 / 258
18
Remove or change the ARIA role — it isn't allowed on this element type. (axe)
1.17×
16 / 258
16
Form field label is visible (alfa)
1.17×
13 / 258
13
Presentational children of an element are not focusable (alfa)
1.17×
9 / 258
9
Table header has scope (alfa)
1.17×
9 / 258
9
Form field has accessible name (alfa)
1.17×
7 / 258
7
page-has-heading-one (axe)
1.08×
23 / 258
25
Text has enhanced contrast (alfa)
1.07×
73 / 258
80
empty-table-header (axe)
1.06×
10 / 258
11