Understanding the impact of CDN on SEO: Pros, Cons and Google Recommendations

Google has recently published an explanation that considers the impact of content shipping networks (CDN) on search indexing and improving SEO, but also shows how they can sometimes cause problems. Let's talk about this in more detail.

CDN is a service that causes the web page and displays it from the closest to the browser that asks this page, the date center. This accelerates the delivery of web pages, as it is now provided from the server, which is closer to the visitor of the site.

🚀 CDN have several advantages. One of them is that Google automatically increases indexation speeds when it reveals that web pages are provided with CDN. This makes CDN use attractive to SEO specialists and publishers who want to increase the number of GoogleBot indexed pages.

• 📌 It is important to understand that when using CDN for the first time the pages should be provided directly from your server.
• 📌 However, at the first access to the URL CDN cache is "cold" because no one has asked this URL yet, its content has not yet been CDN, so your server must still serve this URL at least once to "warm up" CDN cache.

🚀 Google also advises, there are times when CDN can be blacklisted and lock the indexation accordingly. This effect is described as two types of blocks: hard blocks and soft blocks.