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How it works

From URL to certification.

The certification is fully automated: no waiting list, no assessor visiting. You enter an address, we measure, and the result is publicly verifiable. Here is how that works, step by step.

01

Scan your site, live

Enter your web address in the free scan. Our crawler visits up to six pages of your site, starting at the homepage (and via sitemap/links when available), and usually needs less than a minute. No account required and nothing is installed on your site.

With a paid certification a full audit runs: up to fifteen pages, sitemap-led when possible. The report lists which URLs were in the sample. We only scan what is publicly reachable, respecting robots.txt. Quick results are kept for an hour per domain; scanning again sooner is pointless.

jouwwebsite.nlScan
02

Receive your score per pillar

Each pillar gets its own score from 0 to 100: speed, security, mobile and accessibility. Your final score is the average of those four, each pillar weighing equally.

Every finding explains what is wrong and how to fix it. A missing security header, an image without alt text, a button too small for a thumb: you see it per item, sorted by severity.

Speed92
Security88
Mobile94
Accessibility81
03

Clear the hard bar

The bar is an average of 80 points or higher, with no single pillar below 60. That floor is deliberate: a perfect mobile score must not mask a gaping security hole.

Fall short and you see exactly which pillar is holding you back and what needs to happen there. A score cannot be bought or negotiated; rescanning after improvements is free.

average 86bar: 80
04

Show the badge with live status

With a paid certification you get a badge embed for your footer and a public profile page with the full report. The badge shows your live status: visitors click it and verify the certification themselves.

During your subscription we re-audit (about every thirty days). If the score drops, you get thirty days to recover. After twelve months renewal follows as long as the site meets the requirements.

Example of the WebYes badge: certified, score 86

The certification rule in one sentence

An average of 80 points or higher across the four pillars, and no single pillar below 60. That is the whole rule; there are no exceptions and no manual corrections.

Accessibility: honest about coverage

The accessibility pillar scores automated checks against WCAG 2.2 AA. Machines cover an estimated 30-50% of the criteria; contrast nuance, complex keyboard flows and screen-reader experience need a human audit. The mark does not prove full WCAG conformance. Want that depth? Request an expert audit via contact.

WCAG 2.2 →Request a human WCAG audit →

What the machine does and does not do

WebYes is a lab certification on public pages. We measure what a crawler can see: HTTP headers, TLS, viewport, tap targets, alt texts, contrast warnings and speed signals aligned with Core Web Vitals. We do not install an agent on your server and we do not log into your CMS.

What we do not claim: full WCAG conformance, penetration-test security, or a Google ranking guarantee. Automated checks are a hard baseline. Human audits fill in where context matters, for example complex forms or screen-reader paths.

That boundary is also on the report page. It stops a badge being read as 'everything is perfect' when the proof is really: public, repeatable and tied to four pillar scores.

Sample, robots.txt and repeatability

The free scan includes up to six URLs; the full audit up to fifteen, preferably via the sitemap. If the sitemap is empty or unreachable, the crawler follows links from the homepage to a fixed depth. Pages behind login, paywalls or robots.txt disallows stay out of scope.

Each domain has a sixty-minute dedupe window for quick scans. That keeps results comparable and stops the same site flooding the scanner. After fixes you can rescan; within that hour you see the previous quick result.

With an active mark we schedule fresh full audits when the newest scan is older than about thirty days. If a pillar drops below 60 or the average below 80, you get thirty days to recover before badge status changes.

Why 80 average and 60 per pillar

A single top score is easy to game: perfect LCP with open HTTPS failures, or tight security headers with unusable buttons on mobile. So each pillar weighs equally in the average, and a floor of 60 applies per pillar.

That rule is a product fact, not a marketing bar that moves per customer. There is no manual override and no paid 'review'. Improve, rescan, done. The methodology behind national percentiles (when we show them) lives on the methodology page; the mark itself does not depend on percentiles.

Want the metrics themselves? Core Web Vitals on web.dev, WCAG 2.2 at W3C, and for Dutch internet standards internet.nl. Our pillars map those references onto a fixed scorecard, not a new standard.

Badge, profile and open verification

The badge is an embed that fetches live status. Visitors click through to your public profile with pillar scores and findings. That is deliberate: a mark without a checkable report is a sticker.

Profiles of active mark holders can appear in the public register. If the score drops, the report shows that too. There is no separate 'premium listing' that hides bad scores.

After twelve months renewal follows as long as the site meets the 80/60 rule. Engine updates can shift scores; we flag methodology changes on paid report timelines when the engine version changes.

Frequently asked questions about how it works

Do you measure the same as Lighthouse or PageSpeed Insights?

We use lab signals in the same family (including Lighthouse-style audits) and score them on our four pillars. PageSpeed Insights often also shows field data; our mark hangs on our sample and thresholds (80/60), not on Google's CrUX percentiles.

Why don't you scan the whole site?

A full crawl of tens of thousands of URLs is slow, expensive and often unnecessary for a first certification. Six pages (free) or fifteen (full) catch typical templates: home, contact, product or article, plus deeper links. The report names exactly which URLs were included.

Is the mark the same as a legal accessibility statement?

No. Governments and some organisations have separate duties around WCAG and an accessibility statement. Our a11y pillar is an automated sample, not a replacement for that statement or a human audit.

Can I have a score adjusted?

No. Scores follow the scan. If you disagree with a finding, fix the cause or ask support for clarification. Manual corrections or paid exemptions do not exist.

What happens on an engine update?

New checks can lower or raise scores. On paid reports we mark the engine version. You get recovery time if you fall under the threshold; the badge follows the newest valid certification.

Sources

  • Web Vitals (LCP, INP, CLS) - web.dev
  • WCAG 2.2 - W3C Recommendation
  • Platform Internetstandaarden - websitetest
  • Introduction to Lighthouse - Chrome Developers

Read what we measure per pillar

Core Web Vitals →Security headers →SSL certificate →Mobile-friendly website →WCAG 2.2 →Digital accessibility →

Ready to start?

The scan is free and takes less than a minute. After that you know exactly where you stand.

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