How to Make a Website Mobile Friendly

Fix the viewport tag and the theme before anything else, because every other fix depends on them rendering correctly. On a normal WordPress site the whole sequence below takes an afternoon, and each step removes the cause of the next symptom.

1. Open the site on a phone. At 360 pixels wide, note the first failure you see: sideways scroll, tiny text, a menu that will not open, or a slow hero image. That note is your work order.
2. Confirm the viewport tag. The head must carry <meta name="viewport" content="width=device-width, initial-scale=1">. WordPress themes print it automatically; if it is missing, change the theme instead of patching templates.
3. Switch to a responsive theme. Block themes such as Twenty Twenty-Five, or classic themes like Astra, GeneratePress and Kadence, ship responsive layouts. Preview a long post and a table, not just the home page — the theme installation guide walks through safe switching.
4. Replace fixed pixel widths. In custom CSS, swap width: 1200px for percentages or max-width: 100%. One fixed container is what forces every phone into sideways scrolling.
5. Resize and recompress images. Export heroes at display width in WebP or AVIF, keep the hero eager and preloaded, and lazy-load everything below the fold — the WebP conversion guide covers the workflow.
6. Fix form inputs. Set input font-size to 16px, cut required fields to the ones you read, and add autocomplete attributes for name, email and phone.
7. Re-test on the phone. You are done when the page fits at 360 pixels, the menu opens with a thumb, and mobile LCP reads under 2.5 seconds.

Give body text 16px or more, tap targets 48 by 48 pixels with 8px gaps, and single-column layouts below 768 pixels. A thumb is roughly a 48-pixel contact patch and far less precise than a mouse pointer, so cramped links produce mis-taps and bounces.

• One column on phones, two from 768px, the full desktop grid from 1024px.
• Form inputs at a 16px font — below that, iOS Safari zooms the page on focus and the visitor pinches back out.
• Correct keyboards via inputmode="tel" and autocomplete="email", so the phone stops fighting the typist.
• Left-aligned paragraphs; centred text only for short headlines.
• Short forms: name, email, message. Every extra required field costs completions.

Test in Chrome DevTools first for layout, then PageSpeed Insights for field data, then on a real phone over mobile data for touch. Emulation catches a broken grid; it cannot tell you whether the menu opens with one thumb on a slow connection.

1. Device toolbar: press F12 in Chrome, open the device toolbar, pick Pixel 7 or iPhone 14, reload, check for sideways scroll at 360-390px.
2. Lighthouse mobile run: read LCP, INP and CLS individually rather than the single score.
3. PageSpeed Insights: paste the live URL — the field section is real visitors; the lab section is one simulated run. The free WebJi® speed test gives the same picture without the developer tools.
4. Real phone: open the URL over mobile data, then use the menu, a form and the checkout with one thumb.

If a site needs a new theme, image re-export and form rework together, a mobile-first rebuild in one pass usually costs less than patching page by page. WebJi® builds and repairs mobile-first WordPress sites, and its WordPress hosting starts at ₹400 a month before 18% GST, with caching and CDN configured for phone traffic. Where the problem is specifically Core Web Vitals, the WordPress speed optimization service works on LCP, INP and CLS directly. Work is scoped and quoted before payment; write to support@webji.services, answered in Hindi and English 24/7 with an average first reply under 60 minutes.