www.cdc.gov: technology ↔ issues
Accessibility findings that appear disproportionately on pages running a given technology, across the 299 page(s) in 2026-W39 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 14 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)
21.36×
14 / 14
14
Form field has accessible name (alfa)
21.36×
6 / 14
6
Form field label is visible (alfa)
9.86×
6 / 14
13
Text has minimum contrast ratio of 4.5:1 (alfa)
4.00×
6 / 14
32
Each page should have exactly one <main> landmark. (axe)
3.83×
14 / 14
78
Target size is at least 24×24 CSS pixels or has spacing (Minimum) (alfa)
3.77×
6 / 14
34
Increase the contrast between text and its background to at least 4.5:1 (3:1 for large text) (axe)
2.77×
7 / 14
54
Text has enhanced contrast (alfa)
1.80×
6 / 14
71
Target size is at least 44×44 CSS pixels (Enhanced) (alfa)
1.54×
6 / 14
83
DreamWeaver 19 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)
15.74×
14 / 19
14
Form field has accessible name (alfa)
15.74×
6 / 19
6
Form field label is visible (alfa)
9.68×
8 / 19
13
Text has minimum contrast ratio of 4.5:1 (alfa)
3.93×
8 / 19
32
Each page should have exactly one <main> landmark. (axe)
3.83×
19 / 19
78
Target size is at least 24×24 CSS pixels or has spacing (Minimum) (alfa)
3.70×
8 / 19
34
Increase the contrast between text and its background to at least 4.5:1 (3:1 for large text) (axe)
3.50×
12 / 19
54
No obsolete or deprecated elements are used (alfa)
3.42×
5 / 19
23
Link is distinguishable without relying on color (alfa)
1.92×
5 / 19
41
Text has enhanced contrast (alfa)
1.77×
8 / 19
71
Target size is at least 44×44 CSS pixels (Enhanced) (alfa)
1.52×
8 / 19
83
D3 20 pages
Findings over-represented on pages running D3 (lift ≥ 1, ≥5 pages support).
Finding
Lift
On tech pages
On all pages
Use heading levels in order (h1 → h2 → h3) without skipping; structure, not size. (axe)
2.90×
19 / 20
98
Bootstrap 222 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)
1.35×
100 / 222
100
Scrolling content can be accessed by keyboard (alfa)
1.35×
57 / 222
57
aria attribute is permitted for element role (alfa)
1.35×
38 / 222
38
Text has sufficient color contrast (Enhanced) (alfa)
1.35×
25 / 222
25
Remove or change the ARIA role — it isn't allowed on this element type. (axe)
1.35×
18 / 222
18
Ensure the skip link targets a real, focusable element (its href must match an existing id). (axe)
1.35×
12 / 222
12
landmark-contentinfo-is-top-level (axe)
1.35×
11 / 222
11
Use only one banner landmark (<header> at the top level) per page. (axe)
1.35×
11 / 222
11
Use only one contentinfo landmark (<footer> at the top level) per page. (axe)
1.35×
11 / 222
11
Avoid tabindex values greater than 0; they create a confusing tab order. (axe)
1.35×
11 / 222
11
Accessible name of link or button matches visible label (alfa)
1.35×
7 / 222
7
link-in-text-block (axe)
1.35×
7 / 222
7
page-has-heading-one (axe)
1.17×
13 / 222
15
jQuery 240 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)
1.25×
100 / 240
100
aria attribute is permitted for element role (alfa)
1.25×
38 / 240
38
Remove or change the ARIA role — it isn't allowed on this element type. (axe)
1.25×
18 / 240
18
Associate every form control with a <label> (via for/id) or an aria-label/aria-labelledby. (axe)
1.25×
14 / 240
14
Form field label is visible (alfa)
1.25×
13 / 240
13
landmark-contentinfo-is-top-level (axe)
1.25×
11 / 240
11
Use only one banner landmark (<header> at the top level) per page. (axe)
1.25×
11 / 240
11
Use only one contentinfo landmark (<footer> at the top level) per page. (axe)
1.25×
11 / 240
11
Avoid tabindex values greater than 0; they create a confusing tab order. (axe)
1.25×
11 / 240
11
Accessible name of link or button matches visible label (alfa)
1.25×
7 / 240
7
link-in-text-block (axe)
1.25×
7 / 240
7
Form field has accessible name (alfa)
1.25×
6 / 240
6
Scrolling content can be accessed by keyboard (alfa)
1.22×
56 / 240
57
Text has sufficient color contrast (Enhanced) (alfa)
1.20×
24 / 240
25
Ensure the skip link targets a real, focusable element (its href must match an existing id). (axe)
1.14×
11 / 240
12
Text has enhanced contrast (alfa)
1.12×
64 / 240
71