Mobile SEO.
Learn what Mobile SEO means in modern search and SEO.
Optimising a website's performance, usability, and content for mobile devices, foundational since Google's mobile-first indexing made the mobile version the primary crawled version.
Mobile SEO is the practice of optimising websites so they perform well and provide a good user experience on smartphones and tablets. Since Google switched to mobile-first indexing, using the mobile version of a page as the primary basis for indexing and ranking, mobile optimisation has become a prerequisite rather than an optional enhancement. Sites that perform significantly worse on mobile than desktop are ranked on the basis of their weaker mobile experience.
Core Mobile SEO Requirements
Responsive design (the same HTML served to all devices, styled by CSS media queries) is the Google-recommended approach. Text must be readable without zooming. Tap targets (buttons and links) must be sized and spaced for finger navigation. Content must be identical between mobile and desktop: hiding content behind tabs or accordions on mobile that's visible on desktop can reduce its ranking weight. Mobile page speed is paramount: mobile networks are slower, and mobile LCP thresholds are harder to achieve.
Mobile-Specific SEO Considerations
Avoid interstitials that cover the main content on mobile (pop-ups immediately on page load), which Google penalises. Ensure phone numbers are click-to-call formatted. Test with Google's Mobile Usability report in Search Console, which flags specific issues like viewport not configured, content wider than screen, and clickable elements too close together. Chrome DevTools' device emulation and real device testing with WebPageTest reveal performance gaps between desktop and mobile.
Articles about Mobile SEO
Read more on the Aergos blog.
Your 2027 SEO Plan: What to Fix First in January
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Striking distance keywords are the positions 4-20 opportunities already generating impressions in Google Search Console. Here is the exact process for filtering, fixing, and measuring them so you see ranking movement in weeks, not months.
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How Much Does an SEO Audit Cost? Realistic 2026 Price Ranges
SEO audit pricing ranges from free to $20,000+ depending on who does it and what you actually get. Here's how to tell the difference between a real audit and a glorified sales deck, plus honest price ranges for every budget.
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Google's Deep Dive on PDFs: Ranking, Crawling, and AI Visibility
Google's Martin Splitt and John Mueller released a Search Off the Record podcast covering everything about PDFs in search, from how Google converts them to HTML for indexing, to how they perform in AI Overviews. Here's what it means for your content strategy.
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DIY SEO in 2026: What You Can Realistically Do Yourself (and When to Get Help)
You can absolutely do your own SEO in 2026. But there are parts of it that will eat your time, stall your growth, and quietly cost you more than hiring help would have. Here's an honest look at what's DIY-able, what's not, and a simple weekly routine to keep you moving.
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The October 2025 Complete Content Strategy Guide for SEO
This is Aergos's definitive October 2025 guide to building a content strategy for SEO that actually drives rankings, traffic, and revenue. From topic clusters and keyword mapping to production workflows and performance measurement, everything you need is here. Bookmark it, share it, and come back to it every quarter.
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