The Secret to a Successful SEO in the Mobile First Index Era

| Mobile SEO

Few days ago, many webmasters have received a notification from Google about their newest algorithm, the Mobile First Index. To be exact, the roll out came had happened a few months earlier but it is only this week that Google started sending e-mails to inform website owners that they will now be using the contents on the mobile version of their site for ranking and indexing.

With the rapid developments in mobile technology, increase of mobile searches and mobile users was instantaneous. In fact, according to Think With Google’s Post, 96% of people use their smart phone to address their needs. Needs could be from choosing a restaurant for dinner, planning a family vacation or even getting coupons from your favorite store.

With this, the question we need to ask next is:

“Is the mobile-responsive technology enough for this mobile-first index update?”

The answer would be simply “no” because having your own mobile version of the site is projected to be more preferable. But if you already have a mobile-responsive site, improvements can be done to adapt it to the current technology.

Things to check if you want to Optimize on Mobile


Make sure that your images, CSS and Javascript files are crawlable. Check the robots.txt section of your site and make sure that no unnecessary files or pages are included on this section.

To check crawling issues on your site, you can use the Google Fetch tool anytime.


Having good and useful content would not be helpful if the font size used on your site is too small and hard to read. Having a tiny font size would only lead to readers zooming in on your content if they have the patience or leave your site entirely because of the miniature text. To address this problem, make sure that font sizes are good enough for reading. According to Hubspot, recommended font sizes are: Headlines: 22px minimum, Body: 14px minimum.

Image Loading Time

When it comes to images, make sure that the images you upload are high quality and can be compressed to a smaller file size. If your images are not yet optimized, you can use tools like: Optimizilla.

Image Alt Text

Images alone are not search engine friendly. Make sure that you’ll edit the “alt-texts” of your images. By adding alt-texts to your images, you’ll be able to help the users and search engine determine what your images contain or are about.


If you are using videos on your site, make sure that it is mobile-version playable as well. Avoid using Flash and instead use HTML 5 for all your videos. To aid users who have slow internet connection, you can also provide transcriptions below the video on your site.