Quick Reference
Element Code: HT-019
Issue: Viewport set to fixed pixels
Impact: Breaks responsive
Fix: Use device-width
Detection: HTML inspection
What Is This Issue?
Use device-width not fixed pixels.
Why This Matters
Fixed width breaks mobile.
How to Fix
- Change to device-width
Tools
- HTML check: Check viewport
TL;DR
Use width=device-width instead of fixed pixel values.
Claude Vincent is a technical SEO consultant focused on crawlability, rendering, and AI-search visibility. He writes the field guides and case studies at SEO ProCheck, with a bias toward the durable, unglamorous work that decides whether search engines and AI answer engines can actually read and cite a site.
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Technical SEO consulting and GEO strategy with 20 years of enterprise experience. Case studies, resources, and tools for search and AI visibility.
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