Week: 2026-W31 · Report date: 2026-07-30
3333 pages scanned; axe-core ran on 3083 pages, Siteimprove Alfa on 776 pages.
Note: Automated tools find roughly a third of real barriers. This report must be supplemented with manual AT testing and user research before making conformance claims. “Supports” means no automated failure was detected this week, not that the criterion is fully met.
| Criteria | Conformance Level | Remarks and Explanations |
|---|---|---|
| 1.1.1 Non-text Content | Does Not Support | Automated scan found failures on 627 of 3083 tested pages (engines: axe-core, Alfa). Example: http://www.cdc.gov/pcd/issues/2005/apr/04_0131_fr.htm |
| 1.2.1 Audio-only and Video-only (Prerecorded) | Not Evaluated | Not evaluated by automated engines this week. Manual testing required. |
| 1.2.2 Captions (Prerecorded) | Not Evaluated | Not evaluated by automated engines this week. Manual testing required. |
| 1.2.3 Audio Description or Media Alternative (Prerecorded) | Not Evaluated | Not evaluated by automated engines this week. Manual testing required. |
| 1.3.1 Info and Relationships | Partially Supports | Automated scan found failures on 99 of 3083 tested pages (engines: axe-core, Alfa). Example: https://www.cdc.gov/mmwr/preview/mmwrhtml/00020779.htm |
| 1.3.2 Meaningful Sequence | Not Evaluated | Not evaluated by automated engines this week. Manual testing required. |
| 1.3.3 Sensory Characteristics | Not Evaluated | Not evaluated by automated engines this week. Manual testing required. |
| 1.4.1 Use of Color | Partially Supports | Automated scan found failures on 59 of 3083 tested pages (engines: axe-core, Alfa). Example: http://www.cdc.gov/mmwr/preview/mmwrhtml/rr6403a1.htm |
| 1.4.2 Audio Control | Not Evaluated | Not evaluated by automated engines this week. Manual testing required. |
| 2.1.1 Keyboard | Partially Supports | Automated scan found failures on 27 of 3083 tested pages (engines: axe-core, Alfa). Example: http://www.cdc.gov/asthma/nhis/2018/table1-2.htm |
| 2.1.2 No Keyboard Trap | Not Evaluated | Not evaluated by automated engines this week. Manual testing required. |
| 2.1.4 Character Key Shortcuts | Not Evaluated | Not evaluated by automated engines this week. Manual testing required. |
| 2.2.1 Timing Adjustable | Not Evaluated | Not evaluated by automated engines this week. Manual testing required. |
| 2.2.2 Pause, Stop, Hide | Partially Supports | Automated scan found failures on 5 of 3083 tested pages (engines: axe-core). Example: http://www.cdc.gov/mmwr/preview/mmwrhtml/mm4838a2.htm |
| 2.3.1 Three Flashes or Below Threshold | Not Evaluated | Not evaluated by automated engines this week. Manual testing required. |
| 2.4.1 Bypass Blocks | Not Evaluated | Not evaluated by automated engines this week. Manual testing required. |
| 2.4.2 Page Titled | Not Evaluated | Not evaluated by automated engines this week. Manual testing required. |
| 2.4.3 Focus Order | Not Evaluated | Not evaluated by automated engines this week. Manual testing required. |
| 2.4.4 Link Purpose (In Context) | Does Not Support | Automated scan found failures on 246 of 3083 tested pages (engines: axe-core, Alfa). Example: http://www.cdc.gov/pcd/issues/2005/apr/04_0131_fr.htm |
| 2.5.1 Pointer Gestures | Not Evaluated | Not evaluated by automated engines this week. Manual testing required. |
| 2.5.2 Pointer Cancellation | Not Evaluated | Not evaluated by automated engines this week. Manual testing required. |
| 2.5.3 Label in Name | Partially Supports | Automated scan found failures on 93 of 3083 tested pages (engines: Alfa). Example: https://www.cdc.gov/respiratory-viruses/php/toolkit/testing-treatment-handout.html |
| 2.5.4 Motion Actuation | Not Evaluated | Not evaluated by automated engines this week. Manual testing required. |
| 3.1.1 Language of Page | Does Not Support | Automated scan found failures on 600 of 3083 tested pages (engines: axe-core, Alfa). Example: http://www.cdc.gov/pcd/issues/2005/apr/04_0131_fr.htm |
| 3.2.1 On Focus | Not Evaluated | Not evaluated by automated engines this week. Manual testing required. |
| 3.2.2 On Input | Not Evaluated | Not evaluated by automated engines this week. Manual testing required. |
| 3.2.6 Consistent Help | Not Evaluated | Not evaluated by automated engines this week. Manual testing required. |
| 3.3.1 Error Identification | Not Evaluated | Not evaluated by automated engines this week. Manual testing required. |
| 3.3.2 Labels or Instructions | Not Evaluated | Not evaluated by automated engines this week. Manual testing required. |
| 3.3.7 Redundant Entry | Not Evaluated | Not evaluated by automated engines this week. Manual testing required. |
| 4.1.2 Name, Role, Value | Does Not Support | Automated scan found failures on 208 of 3083 tested pages (engines: axe-core, Alfa). Example: https://www.cdc.gov/mmwr/preview/mmwrhtml/mm5931a4.htm?s_cid=mm5931a4_w |
| Criteria | Conformance Level | Remarks and Explanations |
|---|---|---|
| 1.2.4 Captions (Live) | Not Evaluated | Not evaluated by automated engines this week. Manual testing required. |
| 1.2.5 Audio Description (Prerecorded) | Not Evaluated | Not evaluated by automated engines this week. Manual testing required. |
| 1.3.4 Orientation | Not Evaluated | Not evaluated by automated engines this week. Manual testing required. |
| 1.3.5 Identify Input Purpose | Not Evaluated | Not evaluated by automated engines this week. Manual testing required. |
| 1.4.3 Contrast (Minimum) | Does Not Support | Automated scan found failures on 658 of 3083 tested pages (engines: axe-core, Alfa). Example: https://www.cdc.gov/mmwr/preview/mmwrhtml/mm5931a4.htm?s_cid=mm5931a4_w |
| 1.4.4 Resize Text | Partially Supports | Automated scan found failures on 1 of 3083 tested pages (engines: axe-core). Example: https://www.cdc.gov/parasites/cme/congenital_chagas/index.html |
| 1.4.5 Images of Text | Not Evaluated | Not evaluated by automated engines this week. Manual testing required. |
| 1.4.10 Reflow | Not Evaluated | Not evaluated by automated engines this week. Manual testing required. |
| 1.4.11 Non-text Contrast | Not Evaluated | Not evaluated by automated engines this week. Manual testing required. |
| 1.4.12 Text Spacing | Not Evaluated | Not evaluated by automated engines this week. Manual testing required. |
| 1.4.13 Content on Hover or Focus | Not Evaluated | Not evaluated by automated engines this week. Manual testing required. |
| 2.4.5 Multiple Ways | Not Evaluated | Not evaluated by automated engines this week. Manual testing required. |
| 2.4.6 Headings and Labels | Not Evaluated | Not evaluated by automated engines this week. Manual testing required. |
| 2.4.7 Focus Visible | Not Evaluated | Not evaluated by automated engines this week. Manual testing required. |
| 2.4.11 Focus Not Obscured (Minimum) | Not Evaluated | Not evaluated by automated engines this week. Manual testing required. |
| 2.5.7 Dragging Movements | Not Evaluated | Not evaluated by automated engines this week. Manual testing required. |
| 2.5.8 Target Size (Minimum) | Does Not Support | Automated scan found failures on 298 of 3083 tested pages (engines: Alfa). Example: https://www.cdc.gov/niosh/ocas/dupontd.html |
| 3.1.2 Language of Parts | Partially Supports | Automated scan found failures on 2 of 3083 tested pages (engines: axe-core). Example: https://www.cdc.gov/bird-flu/communication-resources/how-h5-bird-flu-spread-dairy-farm.html |
| 3.2.3 Consistent Navigation | Not Evaluated | Not evaluated by automated engines this week. Manual testing required. |
| 3.2.4 Consistent Identification | Not Evaluated | Not evaluated by automated engines this week. Manual testing required. |
| 3.3.3 Error Suggestion | Not Evaluated | Not evaluated by automated engines this week. Manual testing required. |
| 3.3.4 Error Prevention (Legal, Financial, Data) | Not Evaluated | Not evaluated by automated engines this week. Manual testing required. |
| 3.3.8 Accessible Authentication (Minimum) | Not Evaluated | Not evaluated by automated engines this week. Manual testing required. |
| 4.1.3 Status Messages | Not Evaluated | Not evaluated by automated engines this week. Manual testing required. |