WCAG 1.3.2
Meaningful Sequence
Level AWCAG 2.0
0
automated findings for 1.3.2, across our entire corpus
609 site scans and 941 PDF documents. No engine tests this criterion, ours included, so a site can pass every automated check and still fail it completely.
What it means and how to fix it
What 1.3.2 covers
- No engine can detect this: Reading order in a PDF tag tree that does not match the visual orderNo PDF validator checks this, ours included: a tag tree can be perfectly well formed and still read the columns in the wrong order. We previously counted structure failures here and reported a 94.5% failure rate for PDFs, which overstated what was tested. An untagged PDF has no reading order to check at all, and we count that under 1.3.1.
- No engine can detect this: DOM order reordered visually by CSS (flex order, grid placement, absolute positioning)We can see that CSS moved content. We cannot know which of the two orders the author intended a reader to follow, and only one of them is the failure.
- No engine can detect this: Visual columns created with whitespace or line breaks instead of layout
- No engine can detect this: Content whose meaning survives any reading orderThe criterion only applies when sequence affects meaning. Deciding whether it does is a judgement about the content, so a page can reorder freely and still conform.
For what the criterion formally requires, read the W3C Understanding document.
What this does not measureLimits of these figures, and where the corpus came from
- No automated check on a web page can establish this. It requires a person.
- In a PDF, this is on our manual-review list: reported for a human to confirm, not decided automatically.
- These are five targeted cohorts, not a random sample of the web. Per-cohort rates are the figure to quote; the pooled rate is a convenience sample.
- Denominators count sites that produced a result. Sites that were blocked or errored are excluded rather than counted as passing.
- Occurrence counts are floors: the engine records at most 25 occurrences of a rule per page.
- The EU and Indian cohorts retained only the primary success criterion per finding, so a rule mapping to several criteria contributes to one of them in those two cohorts and to all of them in the other three.
| Cohort | Scanned | Attempted |
|---|---|---|
| Shopify DTC stores | 75 | 75 |
| US local government | 158 | 221 |
| US healthcare providers | 208 | 218 |
| EU e-commerce | 107 | 170 |
| Indian financial services | 61 | 72 |
Corpus generated 2026-09-18.
Automation cannot check this one
No scan can test WCAG 1.3.2, ours included. A free scan clears the criteria automation can reach, so a manual review can spend its time on this one.
Run a free scan