WHY IT MATTERS

Markup
affects page behavior.

Markup errors can affect page structure and behavior. We use validation alongside browser and accessibility checks to identify problems that matter to visitors.

The W3C — the World Wide Web Consortium — sets the specifications that define how the web works. Valid HTML, proper semantic structure, CSS that passes validation, ARIA attributes for accessibility. These specifications give us a shared basis for reviewing page structure and behavior.

We check markup during development and correct issues before handover.

✓

VALID HTML5

Development Review

HTMLValidation

WarningsReview

SemanticsStructure

AccessibilityChecks

HTML5 CSS3 ARIA WCAG

OUR STANDARD

Validation is part
of the review.

Validation helps identify markup errors. Browser testing, indexing checks, and accessibility review address how the completed site behaves.

Semantic HTML means using the right elements for the right purposes. Not just divs everywhere — article, section, nav, main, header, footer. A properly structured document communicates its meaning to machines as clearly as it communicates its content to humans. That's how Google understands what your page is about. That's how a screen reader knows where the navigation ends and the content begins.

"We've always built to W3C standards — and higher when possible. It's not a selling point for us. It's just how code is supposed to be written."

We assess contrast, image alternatives, keyboard operation, and accessible names as part of the project. We agree the WCAG criteria and scope to review, and test accessibility beyond markup validation.

WHAT THIS MEANS FOR YOU

Every Line Written
with Purpose.

Six concrete ways W3C compliance directly benefits your business — not just your code.

01

Search Engine Advantage

Semantic markup helps describe a page's structure. We review it alongside crawl access, indexing settings, and structured data; validation alone does not determine rankings.

02

Cross-Browser Consistency

We test pages in representative desktop and mobile browsers and correct differences that affect their layout or use.

03

Accessibility & Reach

Accessibility work helps people with visual, motor, and cognitive disabilities use the site. We review both structure and interactions.

04

Performance at the Foundation

Bloated, invalid markup slows rendering. Clean, semantic HTML is smaller, faster to parse, and gives browsers less work to do — which means faster load times for real users.

05

Future-Proof Structure

Web standards evolve. Clear structure and documented code make it easier to review a site as browser capabilities and project needs change.

06

Accessibility Review

We review accessibility against the agreed WCAG criteria and document issues to address. A technical review does not establish legal compliance or prevent a claim.

THE STANDARD

What Valid Looks Like.

★ ★ ★ ★ ★

"Mike and his team are the TOTAL PACKAGE when it comes to creating AWESOME websites for their clients! Wandzilak Web Design Studio is the only company Aptica refers to our customers when we're asked about web design, development or improving visibility on the Internet."
Jason NewburgCEO, Aptica

THE BIGGER PICTURE

Standards Are the
Foundation.

W3C compliance is where our code starts — not where our ambition ends. It anchors everything we build on top: the design, the performance, the conversion architecture.

THE BUILD