We are addicted to our smartphones. For many people, the smartphone is the first thing they check when they get out of bed in the morning and the last thing they look at before they go to sleep. People use them for everything – it’s become huge! Mobile phones have dramatically changed our lives, the way we use the web and, consequently, it has changed SEO. Mobile SEO helps you to reach customers and satisfy their needs while enjoying the experience. This guide to mobile SEO tells you everything you need to know to deliver the perfect mobile experience.

What is mobile SEO?

Mobile SEO is all about offering an exceptional experience to visitors of your mobile site. It’s about making your mobile site load quickly and without issues, and presenting stellar content that matches the users search intent. In today’s mobile-first world, it’s incredibly important to have flawless mobile site.

Why is mobile SEO so important?

Mobile SEO is crucial because it helps you reach your your customers in the right place at the right time and and give them the very best experience. Mobile traffic has now eclipsed desktop traffic. Billions of people have discovered the enormous advantages of the smartphone. Our whole lives are in these devices – it’s almost scary to see how attached we’ve become to our smartphones. Many people call it an extension of themselves and something they can’t live without. To reach these people you need a mobile SEO strategy.

Mobile does not necessarily mean on-the-go. Studies have found that people often grab the nearest device to look something up quickly and more often than not, that’s their smartphone. They use it to inform themselves about products before making the decision to buy something, any time, any place. According to research by Google, smartphone users have a higher buyer intent than desktop users. They’re focused and ready to buy. It’s your job to be there when they are looking for your products or services.

It is easy to see mobile SEO in terms of solving technical problems or content issues, but it is also very much a user experience and branding thing. Getting a bad experience from a brand on a mobile phone might scare away a potential customer forever. Offering a great experience increases the chance of consumers recommending your brand.

Mobile SEO vs. desktop SEO

There’s quite a difference between desktop SEO and mobile SEO, but the goals are often comparable. You want to reach your audience and convert them into paying customers. In some ways, desktop SEO tactics also work for mobile SEO, but in a slightly different form. Three major themes still apply: focus on performance, user experience and content. In desktop SEO, you’ll often focus more on the general public, while mobile SEO can also have more of a local focus.

What is different, though, is the results you get on mobile versus desktop. For the same search query, different results may pop up depending on what device you are using. Plus, there are other factors that influence the mobile search results, like the location you’re at. This means that getting a good ranking for your product or content on desktop doesn’t guarantee the same result on mobile. When evaluating your performance on mobile, alway keep an eye on the mobile search results.

In addition, it is always a good idea to regularly check what Google is doing on mobile, in general, but especially in your niche. Google is continuing its push for so-called rich results — often powered by structured data — and these are more prominent on mobile. Think about it: searching for flights, events, jobs, movies, music, products and even simple facts will trigger a Google-owned rich result. We’re going to see a lot more of this going forward.

Google’s mobile-first index is live

The importance of mobile SEO is made even clearer by Google’s 2016 announcement of the mobile-first index. In July 2019, Google switched to the mobile-first index and by March 2021 all sites should be indexed mobile-first. What does this mean? For the first time, Google will determine rankings based on the quality of the mobile version of the site instead of the desktop version.

A smartphone version of Googlebot will crawl your mobile site and determine if its performance, content and user experience are up to scratch. If so, you might get a better ranking. If it is lacking, other sites might rank higher and you could lose out. Even if you’re not focusing on mobile you will still be judged by your mobile site, so now’s the time to take action.

What’s more, in January 2018, Google announced that page speed will be a ranking factor for mobile searches from July of that same year:

“The “Speed Update” applies the same standard to all pages, regardless of the technology used to build the page. The intent of the search query is still a very strong signal, so a slow page may still rank highly if it has great, relevant content.”

Things have changed

Right now, Google uses mobile-first indexing when evaluating sites. To get Google to discover and understand it properly you must keep your mobile site crawlable by taking down all possible barriers such as poorly loading scripts and not blocking stuff in your robots.txt. It also has to load lightning fast if you want to be indexed well.

Google’s Gary Illyes wrote a blog post detailing some of the things you should take care of for the mobile-first index. These include offering the same awesome content on both the mobile and desktop site, investing in structured data, offering the correct meta data, checking your hreflang set up and making sure that your servers can handle the increased crawl rate. In July 2020, added another post with even more possible improvements like making sure that you serve images and video in the proper format.

You can no longer present less information on your mobile site than on your desktop site. Your content has to be identical on both, because you will only rank based on the information on your mobile page. Don’t hide stuff! Michiel wrote a post about the so-called mobile parity. Or, like former Googler Maile Ohye told us in an interview:

“To “optimize” for the mobile-first index, make sure that what you serve to mobile users is the version of the content you’d want Google to index, not a pared down version, or a version that gets updated later than desktop, or a version that redirects to the mobile homepage.”

Maile Ohye

Don’t forget to tell Google your site is mobile-friendly. You can add a viewport declaration – if you’re using responsive design – or a Vary header when using dynamic serving. More on this later – or in Google’s developer documentation.

Read more: 5 things you need to know about mobile-first indexing »

A new Google ranking factor: Page Experience

In May 2020, Google announced a ranking factor called Page Experience. While Google has been advocating site speed for years, the page experience update adds something new: user experience. For the first time, Google takes into account how users experience a site. Does the site load quickly? Are there images or slow-loading ads blocking the rendering of a mobile site harming the user experience? The new Core Web Vitals metrics help you make sense of the perceived page experience and prioritize improvements. Somewhere in 2021, the new page experience algorithm will see the daylight.

How to improve mobile SEO

Mobile SEO is – just like regular SEO – all about making sure your site is crawlable and findable. Also, you need stellar performance, great content and a flawless UX. To get it right, you need to know how your site is currently performing and what your visitors are doing right now. For example, will people use the same keywords on mobile to find you? People often change how they search while using a mobile device. And what do you want people to do? Offering to navigate to the nearest Whole Foods is less than ideal when you’re on a desktop machine. It makes total sense on your smartphone, though.

Mobile SEO tools

You need to become best friends with Google Search Console. Its search tools are legendary and a big help if you want to find out how your site is doing in the search results. For instance, by using the Search Analytics feature, you can see how mobile and desktop users use words to find what they need. Are you targeting the right words? Should you focus on something else?

Googlebot needs to be able to crawl your JavaScript, CSS and image files to index it properly. There is a handy tool for this inside Search Console: URL Inspection. This tool lets you see exactly how Googlebot sees and renders your content. When the screen doesn’t align and the tool lists errors, you’ve got work to do.

Mobile Usability tool

Another Google Search Console feature that makes your life easier is the Mobile Usability tool. This tool checks your site and presents an overview of posts and pages that don’t follow Google’s mobile-friendly rules. This is an excellent way to start improving your mobile SEO.

Other tools

Some other great tools to up your mobile SEO game are Google’s Mobile-Friendly Test, Rich Results Test, Lighthouse, Analytics, SEMrush, Ahrefs, Ryte, ScreamingFrog, and SimilarWeb.

Read more: Google Search Console: Search appearance
Read more: DIY: Test your mobile site

Mobile SEO is designing for performance

The number one thing you should be focusing on when you’re trying to improve mobile SEO is performance. Performance almost entirely boils down to site speed. It’s a no-brainer: the faster your site is, the happier your users will be. It’s well known that a site has to load within a couple of seconds or your visitors will give up and go elsewhere. If you combine this with the fact that sites are only getting bigger, it’s clear you have your work cut out.

Optimizing performance, however, is a continuous process. Your site will never be fast enough because there’s always more you can improve – and that’s ok. By keeping a close watch on how your mobile site is performing, you can immediately jump onto every opportunity to improve it. Google loves fast sites, and so do your customers.

Read more: How to improve your mobile site
Read more: Page speed as a ranking factor, what you need to know

Responsive design vs. dynamic serving vs. separate domain

While developing your mobile site, you’ll have three options: responsive design, dynamic serving, or a separate site on a subdomain. Google prefers responsive design because you only have one site that adapts to the device it’s used on. There’s only one code base, so maintenance is easy. According to Google, using responsive design will make your site eligible for addition in the new mobile-first index. Always let Google know that your site is mobile-friendly by adding the meta name=“viewport” declaration in the head of your documents.

<meta name="viewport" content="width=device-width, initial-scale=1.0">

Dynamic serving takes a different approach. It uses server-side technology to serve a different version of your site to mobile users, depending on the way they access your site. The URL stays the same, but the files sent are completely different. You need to add the Vary header to get Google to crawl your site. This way, Google immediately knows that it will receive mobile-optimized files from somewhere else. A Vary header appears like this when a browser makes a request:

Vary: User-Agent

The third option is a separate mobile site on a different URL – usually an m. domain – and with different content. Google supports this method, but only if you make the correct connections between your regular desktop domain and the mobile domain. Use rel="alternate" and rel="canonical" to tell Google how these pages are connected. More on these different types and how Google uses them on this Developers page. Or you can read our rel=”canonical” ultimate guide.

Improve site speed of your mobile site

One of the most importants aspects of mobile SEO is improving site speed. PageSpeed Insights shows you exactly how fast your site loads on both mobile and desktop. It also suggests performance improving enhancements. Use this alongside the Developer Tools in browsers and the Core Web Vitals Report in Search Console to see how your site is rendering its contents.

Among other things, PageSpeed Insights looks at the three current Core Web Vitals metrics:

• CLP (largest contentful paint): The largest contentful paint happens when the largest element of a requested page appears on the screen. A good grade gives users the feeling that the site loads fast. A slow site can lead to frustration.
• FID (first input delay): The first input delay is the time between the first interaction of a user with an element on the requested page and the reaction of the browser to that input. How quickly your page reacts to input is of utmost importance for it to appear fast and responsive.
• CLS (cumulative layout shift): The cumulative layout shift measures the total time of movement on screen that happens during loading. This gives you an idea if stuff is jumping around which could make your site appear jerky.

Type in your URL and Insights will give you two scores: one for mobile and one for desktop. These will be different. If your score is red, you have much work to do. Orange means an average performance and green is good. It’ll give you suggestions on enhancing the performance of your site. Follow these suggestions, and you’ll be on the right track.

I hear you thinking:

“Nobody has a score of 0/100, right?”

Well, think again. A combination of factors can do your mobile site a lot of harm. Find a bad hosting provider, install WordPress on a crappy shared hosting platform, activate thirty plugins and upload a hundred non-optimized images to your blog and you are going to score badly. Even huge sites with big budgets score badly. But these things can be fixed. Run PageSpeed Insights and other speed analyses tools and follow their advice.

What can you do to improve your site speed?

• Optimize images and use fewer images
• Invest in quality hosting
• Update PHP version to PHP7
• Keep your redirects in check
• Fix render-blocking content above the fold
• Prioritize visible content
• Optimize and minify CSS, HTML and JavaScript
• Cache your assets
• Use a CDN
• Make the transition to HTTP/2
• Upgrade to HTTPS
• Load fewer assets like JavaScript libraries
• Load fewer ad servers
• Improve server response time

To help you, we’ve listed five things you can do to boost your Core Web Vitals. When improving your page speed, you should always ask yourself if you need all these assets, libraries, images, plugins, theme features and so on. The famous saying “less is more” is still as valuable as ever.

Read more: Site speed tools and suggestions »

Think about implementing AMP

The Google-led open source project AMP, or Accelerated Mobile Pages, has one goal: loading your pages as fast as possible. It’s been around for some time now. In the beginning, AMP was used on static posts, like blogs or news articles, that didn’t need interaction from the user. For e-commerce purposes and other dynamic types of pages, AMP fell short – until a year or so, that is. Today, AMP is capable of powering canonical sites, with more to come. Look into what AMP could do for your site and how you might implement it. Not every site needs it, but the ones that do could gain a lot from it.

Read more about implementing AMP with WordPress »

Progressive Web Apps (PWA)

PWAs offers another way of targeting mobile users. A progressive web app (PWA) is an all-in-one solution that works on all devices, for all users. It’s the perfect crossover between the app world and the web world. The web app works like an app, without the need to publish it in an app store. PWAs combine the load speeds of mobile sites with the best functionality of a native app. When done correctly, a good PWA might fool users into thinking they are using a native app. Google has a must-read blog post if you want to know how to create indexable PWAs.

Thanks to technologies like service workers, the browser can do a lot more in the background, while keeping the front end updated in real-time. This makes it a good option if you need an app, but can’t justify the cost. There will be a lot happening with progressive web apps in the next couple of years. Every major browser — both mobile and desktop — now supports service workers, even Apple’s Safari on MacOS and iOS. There are, however, still some kinks to be ironed out before Apple’s implementation is solid.

Focus on user experience

Besides being easily found and lightning fast, your mobile site should offer an enjoyable user experience — especially now Google will factor it into their algorithm. Find out which common tasks your customers have on your site. What is their search intent? Try to remove any obstacles and make sure users can achieve their goals quickly. There’s a lot you need to consider when optimizing user experience. Here are a couple of things you need to think about:

• First and foremost: don’t forget your customer!
• Make your site mobile site useful and enjoyable
• Fix your font size: your typography needs to be top notch.
• Keep enough room between the clickable elements.
• Make your sub-menu clickable, so users don’t automatically go back to home instead of the submenu.
• Put your phone number on the homepage and make it clickable. This way, people can call you if they want to do business.
• Don’t make users pinch and zoom to see – and use – your interface.
• Make your buttons large enough for fingers.
• Fix your forms: bad forms are unusable on mobile.
• Cut the clutter.
• Test, adjust and test again!

Read more: 10 ways to improve mobile UX »

Optimize for local

While we use our smartphones a lot in our homes, these devices become even more useful when we’re out and about. Google found that 76% of people who searched for something nearby visited a related business within a day. 28% of those visits led to a sale.

To cope with that local demand, or so-called near me searches, you need to work on your local SEO. Local search results can look very different from regular desktop searches, so you have to know what to target and how to target it. Here are some ways you can improve your local SEO for mobile:

• Write locally oriented content: It’s one of the best things you can do to improve local rankings.
• Build local links: Ask, and ye shall receive.
• Google My Business: Sign up and fill in your details. Here, you can keep your NAP data up to date, respond to reviews and upload photos, among other things.
• Reviews: Ask your customers for reviews, mark them up with structured data and present them on a particular page on your site. This does wonders.
• Photos: Take beautiful pictures of your business and add them to Google My Business.
• Schema.org: Add structured data for NAP details, products, reviews, etc. and you get mobile rich search results like rich cards or carousels.
• Contact details: Make sure your contact information is always correct and up to date. If not, fix it.
• Yoast Local SEO for WordPress plugin: This plugin can do a lot of the hard local SEO work for you.

Read more: Ultimate guide to small business SEO
Read more: Local ranking factors that help your business’ SEO

Finetune your mobile content

Smartphone screens are small. On that screen, text gets truncated and wrapped in a seemingly never-ending stream of paragraphs. Users have to scroll endlessly. Text on a mobile screen has the potential to give any web designer a headache. But the design – and use – of text is of crucial importance to the success of your site. If your site is unreadable or just plain ugly, people will not read your 1,000-word article. Hell, maybe not even your 100-word summary. Fix your typography.

People read a lot on their smartphones, but you have to make it as easy as possible for them to do so. You also need to make sure that your content is up to scratch.

Read more: Optimize your mobile content

Write for the small screen

Always keep the restrictions of the small screen in mind when creating or editing content. Don’t use too many long sentences, keep your paragraphs to around four sentences and break up text using bullet points, lists and headings. Nothing is more daunting to your visitor than a massive block of unformatted text. Check your content on a smartphone to see how it looks and find ways to improve it. The Yoast SEO Premium analysis can help you improve your content.

Read more: Copywriting for mobile

Write better meta descriptions and titles

Google shows less information in the search results on mobile than on a desktop. Your meta descriptions and your titles will be truncated if you make them too long. Think about that when you optimize your posts and pages. You lose several characters when optimizing your meta descriptions and titles for mobile. In Yoast SEO’s snippet editor, you can switch between a mobile and desktop preview. This way, you can compare the differences between the two and find the perfect middle ground. Yoast SEO also uses the titles and meta descriptions to fill your structured data, so make it clear to search engines what your page is about.

Read more: The Google preview in Yoast SEO

Prepare for voice search

When working on your content, you should account for voice search. Yes, it’s been around for a while, but with the advent of Apple’s Siri, Amazon’s Alexa and Google’s Home assistant, things are moving faster. More and more people are using their voice to perform actions on the web, and your content has to provide the answers. If done correctly, you might kill two birds with one stone: you’ll not only respond to questions mobile users have, but it might also lead to so-called featured snippets or answer boxes on desktop searches. Getting a featured snippet almost guarantees your content to be a top answer for assistants. Curious what’s powering conversational search?

To prepare for voice search, you need to take a good look at your current content. Ask yourself, does it answer any question a user might have? If not, change it. Find out which questions people use to find your content and optimize for that. Use Google’s autofill or tools like Answer the Public or AlsoAsked.com to find ideas for questions to answer.

Read more: How to prepare for voice search

Add Schema structured data to a mobile site

Structured data is incredibly important. By using structured data in the form of Schema.org to describe elements on your site, you can open a line of communication with search engines. Structured data makes it clear to search engines what all the different elements on your site mean. If done correctly, search engines can use this data to give you highlighted search results, known as rich results or rich snippets. This way, your site immediately stands out from the crowd, which could lead to a higher click-through rate.

Structured data allows for many new ways of presenting search results. The rich results we see in the carrousel, for instance, uses data you can add to your mobile site. The result is a snippet that is mobile-optimized and very attractive to click. Since Google is heavily investing in improving and expanding the types of rich results these might turn out to be your ticket to enhanced visibility. Try to get those featured snippets!

Structured data is one of the most important topics to get your head around. See our structured data course for an easy way to learn how to add structured data to your mobile site. This course is part of our Yoast SEO academy training subscription. 

Yoast SEO takes care of your Schema needs

Adding Schema to your site has always been a struggle — but not any more! Yoast SEO is making it easy for you. The popular SEO plugin automatically adds an extensive list of Schema structured data properties to your site. Not only that, Yoast SEO also ties everything together in a neat graph. This graph makes it incredibly easy for a search engine to understand the true meaning of your site. That’s not all, because the free Yoast SEO structured data content blocks turn the WordPress block editor into a helpful tool to craft FAQ pages and how-to articles — with more block types to come. Both of these Schema types have a relatively easy to get rich result on mobile attached to it as well.

Read more: Structured data with Schema.org: the ultimate guide

A mobile SEO guide full of tips

This ultimate guide to mobile SEO gives you a lot of pointers to improve the performance of your mobile site. Mobile SEO should always be a work in progress because there are always new developments, but also technologies arrive and are superseded. The world is always changing, and you need to keep up. If you do, the rewards can be great.

So, what are you waiting for? Get your smartphone, check your site on a mobile browser and find and fix those issues. Use this mobile SEO guide well, because this is an important time! This is the time to take action because if you don’t, you might get left behind.

Keep reading: WordPress SEO: The definitive guide to higher rankings for WordPress sites »

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