--- title: Why Your Mobile And Desktop Site Can Behave Differently For SEO description: "**Meta description:**\nLearn how mobile-first indexing affects your SEO. Discover why Google prioritises your mobile site, how navigation differences impact rankings, and what to check for consistency." --- [Skip to content](https://support.bristechtonic.co.uk/knowledge-base/why-your-mobile-and-desktop-site-can-behave-differently-for-seo#main-content) English - United Kingdom Show submenu for translations [![dark-bristechtonic-word-clear-background](https://support.bristechtonic.co.uk/hs-fs/hubfs/BrisTechTonic%20Website/Logos/dark-bristechtonic-word-clear-background.png?width=200&height=113&name=dark-bristechtonic-word-clear-background.png)](https://www.bristechtonic.co.uk/?hsLang=en-gb) Open main navigation Close main navigation - English - United Kingdom Show submenu for translations - [Contact us](https://www.bristechtonic.co.uk/contact) [Contact us](https://www.bristechtonic.co.uk/contact?hsLang=en-gb) How can we help you? - There are no suggestions because the search field is empty. 1. [BrisTechTonic Knowledge Base](https://support.bristechtonic.co.uk/knowledge-base?hsLang=en-gb) 2. [Website Structure](https://support.bristechtonic.co.uk/knowledge-base/website-structure?hsLang=en-gb) 23 March 2026 # Why Your Mobile And Desktop Site Can Behave Differently For SEO ### Google indexes mobile first Since 2019, Google has used mobile-first indexing for all new websites. This means Google primarily uses the mobile version of your site to determine how it ranks. If your mobile site is missing content, has different headings, or loads more slowly than desktop, that's what Google is primarily evaluating. ### Why your menus might differ Mobile and desktop navigation often work differently. Desktop sites use mega-menus or hover dropdowns. Mobile sites use hamburger menus with collapsible sections. The pages in each menu may be structured differently — meaning the link structure Google sees can vary between devices. This is particularly relevant for Wix sites where mobile and desktop layouts are configured separately. A page visible in the desktop menu but not the mobile menu may receive fewer internal links from the mobile version. ### What we check During our technical audit, we compare mobile and desktop versions of key pages to make sure content, headings, and navigation are consistent. - [Getting started](https://support.bristechtonic.co.uk/knowledge-base/getting-started?hsLang=en-gb#main-content) - [Onboarding](https://support.bristechtonic.co.uk/knowledge-base/getting-started?hsLang=en-gb#onboarding) - [Troubleshooting](https://support.bristechtonic.co.uk/knowledge-base/troubleshooting?hsLang=en-gb#main-content) - [Websites](https://support.bristechtonic.co.uk/knowledge-base/troubleshooting?hsLang=en-gb#websites) - [Integrations](https://support.bristechtonic.co.uk/knowledge-base/integrations?hsLang=en-gb#main-content) - [Google Analytics](https://support.bristechtonic.co.uk/knowledge-base/integrations?hsLang=en-gb#google-analytics) - [Google Search Console](https://support.bristechtonic.co.uk/knowledge-base/integrations?hsLang=en-gb#google-search-console) - [Google Business Profile](https://support.bristechtonic.co.uk/knowledge-base/integrations?hsLang=en-gb#google-business-profile) - [Google Tag Manager](https://support.bristechtonic.co.uk/knowledge-base/integrations?hsLang=en-gb#google-tag-manager) - [Understanding SEO](https://support.bristechtonic.co.uk/knowledge-base/understanding-seo?hsLang=en-gb) - [Website Structure](https://support.bristechtonic.co.uk/knowledge-base/website-structure?hsLang=en-gb) - [Measuring SEO Performance](https://support.bristechtonic.co.uk/knowledge-base/measuring-seo-performance?hsLang=en-gb) - [AI Search and SEO](https://support.bristechtonic.co.uk/knowledge-base/ai-search-and-seo?hsLang=en-gb) - [Platform Guides](https://support.bristechtonic.co.uk/knowledge-base/platform-guides?hsLang=en-gb) - [Working with BrisTechTonic](https://support.bristechtonic.co.uk/knowledge-base/working-with-bristechtonic?hsLang=en-gb) - [Google Ads and PPC](https://support.bristechtonic.co.uk/knowledge-base/google-ads-and-ppc?hsLang=en-gb) - [Common Client Questions](https://support.bristechtonic.co.uk/knowledge-base/common-client-questions?hsLang=en-gb) [![dark-bristechtonic-word-clear-background](https://support.bristechtonic.co.uk/hs-fs/hubfs/BrisTechTonic%20Website/Logos/dark-bristechtonic-word-clear-background.png?width=200&height=113&name=dark-bristechtonic-word-clear-background.png "dark-bristechtonic-word-clear-background")](https://www.bristechtonic.co.uk/?hsLang=en-gb) [mailto:hello@bristechtonic.co.uk](mailto:hello@bristechtonic.co.uk) Copyright © 2025, BrisTechTonic