How Does Mobile-First Indexing Work, and How Does It Impact SEO?

Ecompromo | January 1, 2018 | SEO Resources

Posted by bridget.randolph

We’ve been hearing a lot about mobile-first indexing lately, as the latest development in Google’s ever-continuing efforts to make the web more mobile-friendly and reflect user behavior trends.

But there’s also a lot of confusion around what this means for the average business owner. Do you have to change anything? Everything? If your site is mobile-friendly, will that be good enough?


In this post I’ll go over the basics of what “mobile-first indexing” means, and what you may need to do about it. I’ll also answer some frequently asked questions about mobile-first indexing and what it means for our SEO efforts.

What is “mobile-first indexing”?

Mobile-first indexing is exactly what it sounds like. It just means that the mobile version of your website becomes the starting point for what Google includes in their index, and the baseline for how they determine rankings. If you monitor crawlbot traffic to your site, you may see an increase in traffic from Smartphone Googlebot, and the cached versions of pages will usually be the mobile version of the page.

It’s called “mobile-first” because it’s not a mobile-only index: for instance, if a site doesn’t have a mobile-friendly version, the desktop …read more

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