www.cdc.gov: technology ↔ issues
Accessibility findings that appear disproportionately on pages running a given technology, across the 312 page(s) in 2026-W29 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 17 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)
17.33×
17 / 17
18
Form field has accessible name (alfa)
16.52×
9 / 17
10
empty-table-header (axe)
13.11×
5 / 17
7
Form field label is visible (alfa)
8.69×
9 / 17
19
No obsolete or deprecated elements are used (alfa)
4.24×
9 / 17
39
Increase the contrast between text and its background to at least 4.5:1 (3:1 for large text) (axe)
3.92×
16 / 17
75
Each page should have exactly one <main> landmark. (axe)
3.39×
17 / 17
92
Text has minimum contrast ratio of 4.5:1 (alfa)
3.30×
9 / 17
50
Target size is at least 24×24 CSS pixels or has spacing (Minimum) (alfa)
3.18×
9 / 17
52
Link is distinguishable without relying on color (alfa)
2.95×
9 / 17
56
Text has enhanced contrast (alfa)
1.37×
9 / 17
121
DreamWeaver 24 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)
12.28×
17 / 24
18
Form field has accessible name (alfa)
11.70×
9 / 24
10
empty-table-header (axe)
9.29×
5 / 24
7
Form field label is visible (alfa)
7.53×
11 / 24
19
Increase the contrast between text and its background to at least 4.5:1 (3:1 for large text) (axe)
3.81×
22 / 24
75
Each page should have exactly one <main> landmark. (axe)
3.25×
23 / 24
92
No obsolete or deprecated elements are used (alfa)
3.00×
9 / 24
39
Text has minimum contrast ratio of 4.5:1 (alfa)
2.86×
11 / 24
50
Link is distinguishable without relying on color (alfa)
2.55×
11 / 24
56
Target size is at least 24×24 CSS pixels or has spacing (Minimum) (alfa)
2.50×
10 / 24
52
Text has enhanced contrast (alfa)
1.29×
12 / 24
121
D3 24 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)
3.60×
13 / 24
47
Use heading levels in order (h1 → h2 → h3) without skipping; structure, not size. (axe)
2.53×
21 / 24
108
Scrolling content can be accessed by keyboard (alfa)
1.75×
14 / 24
104
Text has enhanced contrast (alfa)
1.50×
14 / 24
121
Target size is at least 44×44 CSS pixels (Enhanced) (alfa)
1.26×
14 / 24
144
Bootstrap 220 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)
1.42×
104 / 220
104
When a landmark role/type repeats (e.g (axe)
1.42×
95 / 220
95
page-has-heading-one (axe)
1.42×
25 / 220
25
Accessible name of link or button matches visible label (alfa)
1.42×
16 / 220
16
Remove or change the ARIA role — it isn't allowed on this element type. (axe)
1.42×
7 / 220
7
aria attribute is permitted for element role (alfa)
1.38×
70 / 220
72
Text has sufficient color contrast (Enhanced) (alfa)
1.38×
41 / 220
42
Presentational children of an element are not focusable (alfa)
1.34×
18 / 220
19
link-in-text-block (axe)
1.24×
7 / 220
8
Text has enhanced contrast (alfa)
1.22×
104 / 220
121
jQuery 242 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)
1.29×
95 / 242
95
aria attribute is permitted for element role (alfa)
1.29×
72 / 242
72
page-has-heading-one (axe)
1.29×
25 / 242
25
Presentational children of an element are not focusable (alfa)
1.29×
19 / 242
19
Form field label is visible (alfa)
1.29×
19 / 242
19
Associate every form control with a <label> (via for/id) or an aria-label/aria-labelledby. (axe)
1.29×
18 / 242
18
Accessible name of link or button matches visible label (alfa)
1.29×
16 / 242
16
Form field has accessible name (alfa)
1.29×
10 / 242
10
link-in-text-block (axe)
1.29×
8 / 242
8
Remove or change the ARIA role — it isn't allowed on this element type. (axe)
1.29×
7 / 242
7
Scrolling content can be accessed by keyboard (alfa)
1.28×
103 / 242
104
Text has sufficient color contrast (Enhanced) (alfa)
1.26×
41 / 242
42
Text has enhanced contrast (alfa)
1.21×
114 / 242
121