On subsequent requests, it shows up as a HIT, which is now cached in your CDN. It will remain in the cache based on several factors, such as ETag headers, expiration headers, or manually purging your CDN’s cache.
Using a CDN like Kinsta CDN (Powered by Cloudflare), you can take caching to the next level by using what is known as a full page cache, reverse proxy. This involves caching everything on a primary URL instead of a secondary domain.
Huge Savings with GZIP Compression
WordPress CDNs also use GZIP, a file format and software application used for file compression and decompression. GZIP compression is activated on the server side (or on the CDN/POP server) and will further reduce the size of your HTML, stylesheets, and JavaScript files.
It won't work with images, as these are compressed differently. Some armenia whatsapp number data have seen reductions of up to 70% due to compression. It's one of the easiest optimizations you can do. And don't worry, all reputable CDNs have this option enabled by default.
HTTP/2 is also one of the main features that all CDNs use to speed up asset delivery. The performance improvement is due to several reasons, such as the protocol being able to support better multiplexing, parallelism, HPACK compression with Huffman scheduling, ALPN extension, and server forwarding.
2. Lower Bandwidth Costs
Another advantage of a CDN is that it can help offload CPU and resources from your hosting server (origin server). This helps:
Prevent traffic spikes from overwhelming your host
Reduce your overall bandwidth costs
Eliminate fluctuations in bandwidth rates due to traffic volatility
The last thing you want is for something to go viral, and you're left with a high bill from your hosting provider or an overage charge.
Another way a CDN helps reduce costs is by providing easy ways to enable direct link protection. This refers to restricting HTTP referrers and preventing others from embedding your assets (images – we have a tutorial on how to protect your images) on other websites.
Some of you may have heard of the Huffington Post fiasco. A Huffington Post author copied and pasted images from the Oatmeal’s website which resulted in a $1,000 AWS bill being sent to the owner of the Oatmeal’s site. The owner of The Oatmeal ended up replacing the images so that readers of the Huffington Post article could see them.
That’s why it’s always essential to turn on hot link protection. Otherwise, you could end up with an outrageous bill.
CDNs offer high availability and scalability. Since replicated content is accessible via multiple POPs in different geographic locations, web traffic is dynamically directed to another server if one goes down. And there's no need to worry about scalability because CDN providers are built with that in mind. A CDN can keep your website from going down if you use a smaller shared host since it handles most of the load.
Google made site speed a ranking factor in 2010, so it's no secret that a faster website could result in better rankings. While there's no way to know how much weight speed carries, you can safely assume that it's one of the most critical factors since it affects user experience.
Brian Dean analyzed the first million domains to see the relationship between site speed and Google rankings and found a positive correlation. While these tests are nearly impossible to prove, you can rest assured that having a faster website will only help you in Google. Simply put, Google rewards fast sites.
In addition to the speed of your website pages, a CDN helps increase the crawl rate of your media, such as images, which correlates with indexing in image search.
