mobile-friendly

Optimize websites for mobile-first indexing and responsive design guidelines.

872|122|Updated Feb 26, 2026
One-click install
npx skills add https://github.com/kostja94/marketing-skills --skill mobile-friendly
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: mobile-friendly
Source: https://github.com/kostja94/marketing-skills/tree/main/skills/seo/technical/mobile-friendly
Command: npx skills add https://github.com/kostja94/marketing-skills --skill mobile-friendly

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

This Skill helps ensure your website is easily discoverable and usable by mobile users, addressing critical aspects of mobile-first indexing and responsive design.

Core Features & Use Cases

  • Mobile-First Indexing: Guides optimization for Google's mobile-first indexing approach.
  • Responsive Design: Provides best practices for adapting layouts to various screen sizes.
  • Mobile Usability: Checks for essential elements like viewport settings, font sizes, and touch targets.
  • Use Case: Improve your website's ranking and user experience on mobile devices by ensuring it meets Google's mobile-friendly standards.

Quick Start

Analyze the mobile-friendliness of the website at 'https://example.com'.

Frequently Asked Questions about mobile-friendly

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I optimize my website for mobile-first indexing?

Optimize for mobile-first indexing by implementing responsive design principles, verifying viewport configuration, and ensuring content parity between desktop and mobile versions to improve your mobile search performance.

What makes a website mobile-friendly according to Google's guidelines?

A mobile-friendly website meets Google's guidelines by configuring the viewport correctly, maintaining readable font sizing, ensuring accessible touch targets, and avoiding intrusive interstitials that block mobile usability.

How do I check my website for mobile usability issues?

Check mobile usability issues by validating critical technical requirements including viewport settings, content parity, font sizing, and touch targets to identify elements that fail responsive design standards.

Does mobile responsiveness affect Core Web Vitals and technical SEO?

Mobile responsiveness directly impacts technical SEO by influencing Core Web Vitals, requiring proper viewport configuration and the removal of intrusive interstitials to validate against Google's mobile-friendly performance metrics.

What are common mobile usability problems that hurt search rankings?

Common mobile usability problems hurting search rankings include missing viewport configurations, inadequate touch target sizing, poor font readability, and intrusive interstitials that violate mobile-first indexing requirements.