www.cdc.gov: technology ↔ issues
Accessibility findings that appear disproportionately on pages running a given technology, across the 129 page(s) in 2026-W26 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.
DreamWeaver 10 pages
Findings over-represented on pages running DreamWeaver (lift ≥ 1, ≥5 pages support).
Finding
Lift
On tech pages
On all pages
Give the link discernible text (axe)
4.96×
5 / 10
13
Increase the contrast between text and its background to at least 4.5:1 (3:1 for large text) (axe)
4.45×
10 / 10
29
Each page should have exactly one <main> landmark. (axe)
3.91×
10 / 10
33
Use heading levels in order (h1 → h2 → h3) without skipping; structure, not size. (axe)
1.70×
7 / 10
53
D3 10 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)
2.19×
9 / 10
53
Bootstrap 96 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)
1.34×
48 / 96
48
When a landmark role/type repeats (e.g (axe)
1.34×
38 / 96
38
Text has sufficient color contrast (Enhanced) (alfa)
1.34×
22 / 96
22
Accessible name of link or button matches visible label (alfa)
1.34×
8 / 96
8
page-has-heading-one (axe)
1.34×
6 / 96
6
aria attribute is permitted for element role (alfa)
1.30×
29 / 96
30
Text has enhanced contrast (alfa)
1.19×
48 / 96
54
Presentational children of an element are not focusable (alfa)
1.16×
13 / 96
15
Wrap all page content in landmarks (header, nav, main, footer) so users can navigate by region. (axe)
1.00×
96 / 96
129
Microsoft ASP.NET 85 pages
Findings over-represented on pages running Microsoft ASP.NET (lift ≥ 1, ≥5 pages support).
Finding
Lift
On tech pages
On all pages
page-has-heading-one (axe)
1.26×
5 / 85
6
Accessible name of link or button matches visible label (alfa)
1.14×
6 / 85
8
Scrolling content can be accessed by keyboard (alfa)
1.01×
32 / 85
48
Give every <img> a meaningful alt attribute (axe)
1.01×
16 / 85
24
Presentational children of an element are not focusable (alfa)
1.01×
10 / 85
15
Wrap all page content in landmarks (header, nav, main, footer) so users can navigate by region. (axe)
1.00×
85 / 85
129
jQuery 106 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)
1.22×
48 / 106
48
When a landmark role/type repeats (e.g (axe)
1.22×
38 / 106
38
aria attribute is permitted for element role (alfa)
1.22×
30 / 106
30
Text has sufficient color contrast (Enhanced) (alfa)
1.22×
22 / 106
22
Presentational children of an element are not focusable (alfa)
1.22×
15 / 106
15
Accessible name of link or button matches visible label (alfa)
1.22×
8 / 106
8
page-has-heading-one (axe)
1.22×
6 / 106
6
Form field label is visible (alfa)
1.22×
5 / 106
5
Text has enhanced contrast (alfa)
1.15×
51 / 106
54
Wrap all page content in landmarks (header, nav, main, footer) so users can navigate by region. (axe)
1.00×
106 / 106
129
Google Analytics 129 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×
129 / 129
129
Target size is at least 44×44 CSS pixels (Enhanced) (alfa)
1.00×
65 / 129
65
Text has enhanced contrast (alfa)
1.00×
54 / 129
54
Use heading levels in order (h1 → h2 → h3) without skipping; structure, not size. (axe)
1.00×
53 / 129
53
Scrolling content can be accessed by keyboard (alfa)
1.00×
48 / 129
48
Azure Front Door 129 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×
129 / 129
129
Target size is at least 44×44 CSS pixels (Enhanced) (alfa)
1.00×
65 / 129
65
Text has enhanced contrast (alfa)
1.00×
54 / 129
54
Use heading levels in order (h1 → h2 → h3) without skipping; structure, not size. (axe)
1.00×
53 / 129
53
Scrolling content can be accessed by keyboard (alfa)
1.00×
48 / 129
48
Azure 129 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×
129 / 129
129
Target size is at least 44×44 CSS pixels (Enhanced) (alfa)
1.00×
65 / 129
65
Text has enhanced contrast (alfa)
1.00×
54 / 129
54
Use heading levels in order (h1 → h2 → h3) without skipping; structure, not size. (axe)
1.00×
53 / 129
53
Scrolling content can be accessed by keyboard (alfa)
1.00×
48 / 129
48
HSTS 129 pages
Findings over-represented on pages running HSTS (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×
129 / 129
129
Target size is at least 44×44 CSS pixels (Enhanced) (alfa)
1.00×
65 / 129
65
Text has enhanced contrast (alfa)
1.00×
54 / 129
54
Use heading levels in order (h1 → h2 → h3) without skipping; structure, not size. (axe)
1.00×
53 / 129
53
Scrolling content can be accessed by keyboard (alfa)
1.00×
48 / 129
48