consulting

Live Check (163 articles)

H1 tag length too long

H1 Tag Length Too Long

Best practices guide for H1 Tag Length Too Long (ON-001). Priority: High. Live check available.
Learn More
Diagram comparing a viewport meta tag that blocks zoom with user-scalable=no against a corrected tag that keeps only width=device-width and initial-scale=1

Viewport Meta Tag Prevents User Scaling

Best practices guide for Viewport Meta Tag Prevents User Scaling (HT-007). Priority: High. Live check available.
Learn More
Comparison of initial html with no h1 against the rendered dom where a javascript injected h1 appears only after the second indexing wave.

H1 Only in Rendered HTML

Best practices guide for H1 Only in Rendered HTML (ON-010). Priority: Medium. Live check available.
Learn More
Ids used in aria and labels must be unique: how to fix it

IDs Used in ARIA and Labels Must Be Unique: How to Fix It

An id is meant to be a unique handle for a single element. Several accessibility features…
Learn More
Headers must have data cells

Table Headers Must Have Data Cells: How to Fix It

Every <th> header in a data table must point to real <td> data cells, because a…
Learn More
Zooming and scaling must not be disabled: how to fix the viewport

Zooming and Scaling Must Not Be Disabled: How to Fix the Viewport

Your audit found a viewport meta tag that stops people from pinch-zooming your page — the…
Learn More

Get new blog posts by email: