Overview
The most current, widely cited number comes from WebAIM’s 2026 Million report: 95.9 percent of the top one million home pages on the web have at least one detectable WCAG failure. That is up from 94.8 percent in 2025, reversing six straight years of small improvement. Roughly 4 in 100 sites pass even a basic automated check, and the real non-compliance rate is almost certainly higher, since automated scans only catch a portion of what WCAG actually requires.
Where the number comes from
WebAIM runs an automated scan against the homepages of the top one million websites every year and has done so for eight consecutive years. The 2026 findings: the average home page carried 56.1 distinct accessibility errors, a 10.1 percent increase from the year before, and homepage complexity grew 22.5 percent in a single year. Researchers point to increased use of third-party scripts, more complex page structures, and AI-assisted development as contributing factors.
The most common failures
The same six error types have topped the list for seven consecutive years:
- Low color contrast text, found on 83.9 percent of home pages
- Missing alternative text for images, 53.1 percent
- Missing form input labels, 51 percent
- Empty links, 46.3 percent
- Empty buttons, 30.6 percent
Together these categories account for the large majority of all detected errors, which means a store that checks for these first captures most of its risk fastest. That is the logic behind the free self-check.
Why the real number is worse than 95.9 percent
This figure only counts automatically detectable failures. It says nothing about keyboard traps, illogical focus order, or content that reads fine visually but makes no sense to a screen reader, the kind of issue that only shows up in manual testing. WebAIM’s own analysis notes the true rate of full WCAG conformance is certainly lower than the 4.1 percent that passed the automated check. The gap between what a scanner catches and what an audit catches is explained in why automated tools miss accessibility issues.
Example
A store owner ran their homepage through a free scanner, found only 3 errors, and assumed they were close to compliant. In reality that put them in the better-than-average group of sites with 5 or fewer detected errors, still not a WCAG pass, and still untested for the roughly two-thirds of criteria a scanner cannot see at all.
Common mistake
Reading “95.9 percent of sites are non-compliant” as reassurance, since a lawsuit needs a plaintiff and most sites are technically exposed. Plaintiffs’ firms specifically target sites in the same niche and platform repeatedly, which is why ecommerce accounts for a disproportionate share of filings, covered in Shopify ADA lawsuits. Being part of a large non-compliant majority is not protection.