www.cdc.gov: technology ↔ issues
Accessibility findings that appear disproportionately on pages running a given technology, across the 313 page(s) in 2026-W32 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 20 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)
15.65×
20 / 20
20
Form field has accessible name (alfa)
15.65×
6 / 20
6
Text has minimum contrast ratio of 4.5:1 (alfa)
5.87×
6 / 20
16
Form field label is visible (alfa)
5.52×
6 / 20
17
Increase the contrast between text and its background to at least 4.5:1 (3:1 for large text) (axe)
4.40×
18 / 20
64
Each page should have exactly one <main> landmark. (axe)
3.82×
20 / 20
82
Target size is at least 24×24 CSS pixels or has spacing (Minimum) (alfa)
3.76×
6 / 20
25
Text has enhanced contrast (alfa)
1.12×
6 / 20
84
Target size is at least 44×44 CSS pixels (Enhanced) (alfa)
1.06×
6 / 20
89
DreamWeaver 22 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)
14.23×
20 / 22
20
Form field has accessible name (alfa)
14.23×
6 / 22
6
Text has minimum contrast ratio of 4.5:1 (alfa)
6.22×
7 / 22
16
Form field label is visible (alfa)
5.86×
7 / 22
17
Increase the contrast between text and its background to at least 4.5:1 (3:1 for large text) (axe)
4.45×
20 / 22
64
Target size is at least 24×24 CSS pixels or has spacing (Minimum) (alfa)
3.98×
7 / 22
25
Each page should have exactly one <main> landmark. (axe)
3.82×
22 / 22
82
Link is distinguishable without relying on color (alfa)
3.09×
5 / 22
23
Text has enhanced contrast (alfa)
1.19×
7 / 22
84
Target size is at least 44×44 CSS pixels (Enhanced) (alfa)
1.12×
7 / 22
89
D3 17 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)
3.17×
16 / 17
93
Bootstrap 232 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 / 232
100
Scrolling content can be accessed by keyboard (alfa)
1.35×
74 / 232
74
aria attribute is permitted for element role (alfa)
1.35×
58 / 232
58
Remove or change the ARIA role — it isn't allowed on this element type. (axe)
1.35×
17 / 232
17
Accessible name of link or button matches visible label (alfa)
1.35×
8 / 232
8
Text has sufficient color contrast (Enhanced) (alfa)
1.30×
26 / 232
27
page-has-heading-one (axe)
1.28×
18 / 232
19
Presentational children of an element are not focusable (alfa)
1.24×
11 / 232
12
Text has enhanced contrast (alfa)
1.19×
74 / 232
84
Target size is at least 44×44 CSS pixels (Enhanced) (alfa)
1.12×
74 / 232
89
Table header has scope (alfa)
1.12×
5 / 232
6
jQuery 253 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)
1.24×
100 / 253
100
Scrolling content can be accessed by keyboard (alfa)
1.24×
74 / 253
74
aria attribute is permitted for element role (alfa)
1.24×
58 / 253
58
Text has sufficient color contrast (Enhanced) (alfa)
1.24×
27 / 253
27
Associate every form control with a <label> (via for/id) or an aria-label/aria-labelledby. (axe)
1.24×
20 / 253
20
Remove or change the ARIA role — it isn't allowed on this element type. (axe)
1.24×
17 / 253
17
Form field label is visible (alfa)
1.24×
17 / 253
17
Presentational children of an element are not focusable (alfa)
1.24×
12 / 253
12
Accessible name of link or button matches visible label (alfa)
1.24×
8 / 253
8
Table header has scope (alfa)
1.24×
6 / 253
6
Form field has accessible name (alfa)
1.24×
6 / 253
6
link-in-text-block (axe)
1.24×
5 / 253
5
Text has enhanced contrast (alfa)
1.19×
81 / 253
84
page-has-heading-one (axe)
1.17×
18 / 253
19
Target size is at least 44×44 CSS pixels (Enhanced) (alfa)
1.13×
81 / 253
89
empty-table-header (axe)
1.08×
7 / 253
8
Google Analytics 313 pages
Findings over-represented on pages running Google Analytics (lift ≥ 1, ≥5 pages support).
Finding
Lift
On tech pages
On all pages
Wrap all page content in landmarks (header, nav, main, footer) so users can navigate by region. (axe)
1.00×
313 / 313
313
Azure Front Door 313 pages
Findings over-represented on pages running Azure Front Door (lift ≥ 1, ≥5 pages support).
Finding
Lift
On tech pages
On all pages
Wrap all page content in landmarks (header, nav, main, footer) so users can navigate by region. (axe)
1.00×
313 / 313
313
Azure 313 pages
Findings over-represented on pages running Azure (lift ≥ 1, ≥5 pages support).
Finding
Lift
On tech pages
On all pages
Wrap all page content in landmarks (header, nav, main, footer) so users can navigate by region. (axe)
1.00×
313 / 313
313