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Commitment

Accessibility

We target WCAG 2.2 level AA. This page says what we have done, what we know still falls short, and how to tell us when something blocks you. The known issues section is not a formality.

Last updated August 25, 2026

Our commitment

Probant Protocol is intended to be usable by everyone who needs to verify a right, including people using screen readers, keyboard only navigation, screen magnification, speech input, and reduced motion settings. We measure against the Web Content Accessibility Guidelines 2.2 at level AA.

Current status: partially conformant. Most of the site meets level AA. The exceptions are listed below by name rather than summarized away.

What is in place

Keyboard
Every interactive control is reachable and operable by keyboard, including the navigation menu, the language switcher, the whitepaper tabs, and every form field. Focus is never trapped.
Focus visibility
A high contrast focus ring is drawn on every focusable element and is never removed. Focus moves into the language menu when it opens and returns to the trigger on Escape.
Contrast
Every rendered text node on every page is measured against its composited background on each build, at 4.5 to 1 for normal text and 3 to 1 for large text. A page that fails does not ship. The chart palette is separately validated for deuteranopia, protanopia, and tritanopia separation.
Motion
The hero animation, the count up figures, the decode effect, and the scroll reveals all honor prefers-reduced-motion. With that setting on, content is shown immediately in its final state and nothing animates.
Content without script
Every page renders its full text content with JavaScript disabled, and the language switcher still navigates. Reveal animations degrade to plain visible content rather than hiding it.
Structure
One h1 per page, headings in order, landmark elements for navigation and content, and lists marked up as lists.
Images and canvas
Decorative graphics carry empty alt text or aria-hidden. The animated hero canvas is decorative and hidden from assistive technology; no information exists only inside it.
Zoom and reflow
Content reflows to a single column at 320 CSS pixels and remains usable at 200 percent zoom without horizontal scrolling. Wide tables and the sublicense tree scroll inside their own container rather than forcing the page sideways.
Forms
Every field has a persistent visible label tied to it programmatically. Required fields are marked. Errors are reported in text, not by color alone.
Language
Each page declares its language, and the translated pages declare theirs, so a screen reader selects the right voice. Language options in the switcher carry their own lang attribute.

Known issues

These are open, and naming them is more useful to you than claiming full conformance.

  • The sublicense tree uses box drawing characters. A screen reader announces those glyphs literally, which is noise. The relationships are legible visually but are not yet exposed as a proper hierarchical structure. A semantic list version is planned.
  • The allocation and unlock charts are canvas based. The underlying figures appear as text in the tables beside them, so no information is lost, but the charts themselves are not navigable and carry only a summary description.
  • Translated pages cover the overview only. The protocol, token, whitepaper, and raise pages are available in English only. That is a content gap rather than a technical barrier, and the notice on each translated page says so before you click through.
  • Headings use a condensed typeface. Oswald is narrower than a normal grotesque, which some readers with low vision find harder at small sizes. Body copy avoids it entirely for that reason.
  • No formal audit yet. Testing has been internal, using keyboard traversal, zoom, reduced motion, and automated checks. A third party audit is planned before the anchor tool opens.

How this was tested

Keyboard only traversal of every page, rendering at 320, 390, 768, 1280, and 1440 pixels wide, 200 percent browser zoom, forced reduced motion, JavaScript disabled, and automated contrast and structure checks run against every page on each build.

Three gates run before anything ships, and each one exists because something got past the previous set. A structure gate that scrolls every page and asserts that every animated block actually reaches full opacity, because a completely blank page once passed every other check. A contrast gate that measures every text node against its composited background. And a behavior gate that drives the language switcher, the mobile menu, and the forms, including a pass with JavaScript turned off. A failure in any of the three stops the build.

Tell us about a barrier

If something on this site blocks you, email info@prbt.io with the page address, what you were trying to do, and what assistive technology you were using if you are comfortable sharing it. We aim to acknowledge within two business days and to give you a fix or a timeline within ten.

If you need any content on this site in another format, ask and we will produce it. That includes the whitepaper as plain text or as a tagged document.

Review

This statement is reviewed whenever the site changes materially, and at least twice a year. It was last reviewed on August 25, 2026.