One SEO professional asked John Mueller during a hangout about whether using a CDN (Content Delivery Network) can improve their rankings.
Their question was:
They get the majority of their traffic from a specific country. They hosted their website on a server located in that country.
Would John suggest that they put their entire website behind a CDN in order to improve PageSpeed for others globally?
Or is this not required in their case?
John explained that there’s nothing wrong with doing a CDN. Also, however, he doesn’t believe that this would have a big effect on Google at all regarding SEO.
The only effect he imagines that something might happen is where users end up seeing the page speed improvements.
And if the majority of your users are already seeing a very fast website, because your server is located there, then you’re doing the right thing.
Of course, if users in other locations are seeing a very slow result, because of a connection to your country not being that great, then this is something where you may have some opportunities to improve on.
And you could see that as something of an opportunity in the sense that, of course, if your website is really slow for other users, then it’s going to be rare for them to start going to your site more. Because then it’s really annoying to get there.
Whereas if your website is pretty fast for other users, then at least they have an opportunity to see a reasonably fast website, which could be your website.
So from that perspective, if there’s something that you can do to improve things globally for your site, then John thinks it’s a good idea.
But, it’s not critical.
CDNs are not something that matters in terms of SEO. But it is something you can do to grow your site past just your current country.
One thing John wanted to clarify was that if Google’s crawling is really really slow, then of course this can affect how much Google can crawl and index from your website. So this could be an aspect to look into. John also mentioned that, based on the majority of websites that he’s looked at, he hasn’t really seen this as being a problem.