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A content delivery network or content distribution network (CDN) is a system of computers containing copies of data placed at various nodes of a network.

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How to restrict or limit simultaneous streaming for multiple device on an over the top (OTT) streaming media platform? [on hold]

We are trying to build an OTT platform. One of the requirement is to have restriction on the number of devices that can stream simultaneously. The way Netflix or Amazon prime does it. Now, we are a ...
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1answer
94 views

Why pay for a distributed DNS service when ISPs cache lookups?

Suppose I've purchased example.com from my neighbor's startup domain name company, superlowcostdomainnames.com (aka SlowDNS). At first DNS is a bit of a performance drag, because SlowDNSs servers are ...
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22 views

Disable caching for subdomain on Cloudflare?

How can I disable caching for a subdomain on Cloudflare but keep SSL?
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19 views

Fetch as Google displays “Temporarily Unreachable” for resources served from a CDN [duplicate]

When rendering for the desktop version of my site, Fetch as Google is displaying "Temporarily Unreachable" for various resources served from either a CDN (e.g., images, JavaScript, etc...), or third-...
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2answers
55 views

Will CDN affect my SEO?

I'm planning to use a CDN for hosting all my website files. This is because it makes the site load faster. My boss asked me a question before implementing this. Will this affect the SEO in any way. My ...
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70 views

Will introducing a CDN for images on a subdomain dilute our PageRank or hurt our rankings?

Background: We run a product aggregator site. We list 20k products which will grow to 200k within the next year and also have a section of the site where users can take those product images and ...
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1answer
184 views

Google intermittently fails to download CSS and JS from CloudFront CDN

We noticed a lot of "Mobile Usability" errors in the Search Console. When I clicked on them and chose "Check live version" option - it always said the page was mobile friendly. However, the mobile ...
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27 views

Increase in self-referrals in Google Analytics since implementation of CDN

Since the implementation of a CDN, my self-referrals have gone from being non-existent to thousands per day, the referral report in analytics with full referrer as a secondary dimension show that the ...
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16 views

Duplicating CDN content under different domains

I have the english version of my site under mysamplewebsite.com, I serve all of the image content from cdn.mysamplewebsite.com. I also have the localized versions of the .com site under top level ...
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220 views

CloudFront very slow TTFB after enabling HTTP/2

My site was running on HTTP/1.1 with CloudFront at front, Webpagetest reports the load time usually at 2 seconds. Yesterday I enabled HTTP/2 (and SSL) on CloudFront, hoping to see an improvement. The ...
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1answer
37 views

eCommerce: Do Content Delivery Networks 'see' customer exchanges/data?

I am thinking of using a Content Delivery Network. CloudFare being the most popular and initial obvious choice. The website is an eCommerce site. As such, there will be exchanges of customer's ...
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119 views

Is it possible to block cookies that are set by externally hosted content?

Is it possible to block cookies that are set by externally hosted content embedded in a page? For example if I embed an image from a CDN, the response for this image may contain a Set-Cookie header, ...
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489 views

Facebook crawler with no user agent spamming our site in possible DoS attack

Crawlers registered to Facebook (ipv6 ending in :face:b00c::1) were slamming our site, seeing 10s of thousands of hits in just 20 minutes. We noticed they didn't have a user agent in the header and ...
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1answer
163 views

If I choose to use a naked domain for my website (no www), will I be unable to use a CDN later?

I would like to use a naked domain instead of one with a sub domain but am worried about some potential issues down the line. It is an ecommerce site so if the site grows then a content delivery ...
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1answer
37 views

How can any media-driven website be profitable with a CDN?

Long story short, I run a website where users upload their own content. Photos and videos. Everything is posted directly to an AWS S3 Bucket, then propagated out to a CDN. I have users all over the ...
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1answer
39 views

CDN setup without nameserver AND cname manipulation

Is it possible? Does somebody know, how is it technically possible to setup a CDN without nameserver and cname manipulation?
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13 views

Do I need encrypted CDN?

I aim to run a wordpress ecommerce website and the host (1and1) provides a free CDN. However it is not encrypted unless I pay for the next tier. Can I run a https site with a unencrypted CDN? Will ...
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1answer
231 views

Performance Issues Using SSL With Cloudflare

I have been using Cloudflare for a while without much consideration to what it was doing. Today I have noticed that there is around 500ms of delay when I view a web page over https when Cloudflare is ...
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28 views

How to prevent CDN content URLs being indexed by Google [duplicate]

Well, robots.txt prevent crawling and meta robots tag in HTML (or) X-Robots-Tag HTTP header prevents indexing (and other functionalities available too). So, even when a URL is disallowed in robots....
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1answer
386 views

“Resources with a “?” in the URL are not cached by some proxy caching servers”

I'm using query strings to burst out of cache, e.g.: mysite.css?201708311009 where the date is that of the last modification date of the file. Running a speed test on PingDom gets me this result: ...
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49 views

Effective and cheap way of hosting images [closed]

I'm making a website that uses mostly images, they take up to 150gb disk space. My VPS is only 40GB SSD and I'm looking for a way to host images elsewhere. How can I achieve that? What are the ways - ...
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15 views

Duplicate content with image CDN [duplicate]

I'm in a similar situation as this user: CDN virtual subdomain causes duplicated content However, I have yet to create the CDN. My question has 2 parts: Part 1: I think I may have found an issue ...
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Will a US, Asia, and Europe CDN improve page load time for Central American visitors to a US hosted site?

The CDN's location servers are on US, Europe, and Asia. The web page is hosted in US. Visitors to your website are only from Central America. Will the website page load time be benefit if that CDN ...
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1answer
163 views

Parallelize downloads with one server by using apache

People seem to be pushing all of this as a way to sell CDNs, but surely it can be just done with apache. If browsers can only download 8 files at a time from website.com, why cant I just setup 2 ...
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5answers
71 views

Moving website images to remote server vs moving database to remote server

I have a wordpress website that has gotten too big for a single server. I need to decide whether I should host the database externally i.e. purchase another server for the DB or if i should host the ...
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24 views

Point second domain at website when only CloudFlare IPs have been white listed for first domain

I blocked the IP address of my website because I'm using CloudFlare whose IPs I've white listed. I have another domain which I want to point to my site. Besides an IP address is there anyway I can ...
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1answer
40 views

Can I migrate the hosting of my CDN configured site?

My site is CloudFlare Free CDN configured & I am planning to migrate my hosting. Can I do so, since its CDN configured?
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1answer
112 views

Can I use CloudFlare DNS without using their service and point DNS to Incapsula?

I have been using CloudFlare for a few years as well as Incapsula and while CloudFlare excels in CDN, it is far far far behind in terms of security. Incapsula on the other hand rocks for security (at ...
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25 views

“Site unreachable” when using asset parallelization with Cloudflare CDN [closed]

I use WordPress site with CDN (Cloudflare). I want to serve static files(images, js, and css) from a different static cookieless domain. I create subdomains in my DNS, but I can't add images or ...
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1answer
188 views

Remote CDN: Pro's and Cons of grouping CSS and JS

I'd like to know the pros and cons of grouping external CSS and JavaScript files. The grouping method I'm referring to often seen by external libraries providers such as Google fonts and jsDelivr. ...
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2answers
992 views

CloudFlare isn't working as CDN

Perhaps I'm not getting it as should, but as far as I got it, CloudFlare should use local(geographically) servers, relative to the user, to deliver the content. But instead, I'm getting all the time ...
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167 views

Does adding CDN stops Google from crawling?

I want to add Cloudflare free CDN to my site but worried about whether Google bots will be able to crawl my site later on or not.
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109 views

Cloudflare disallow directory

I've disallowed a directory by following this and looked at cloudflare's KB I've turned off all the features from the page rules: Here are a few that are not disabled because I didn't think I needed ...
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1answer
296 views

Google Search Console “Indexed Pages” spike and traffic loss after image CDN switch

Back on 2/7, we changed CDNs from Amazon Cloudfront to StackPath for the images on our popular sports website. We ticked off the "use canonical headers" option when doing so. Starting on 2/12, we ...
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2answers
50 views

How do CDNs determine where the edge nodes should be placed? [closed]

I recently started reading upon CDNs and how they can help optimize web requests by having a network of edge nodes which are much closer to the user. What kind of parameters do CDN Providers look ...
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152 views

Accessing distribution URL directly gives XML error

I'm currently setting up the Amazon Cloudfront distribution and S3 bucket for my Wordpress website. I set up new S3 bucket for the site and i'm using the S3 offload plugin for wordpress to store any ...
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2answers
59 views

Can I set up alerts for when a CDN is down?

My client use a CDN on their website. Sometimes the CDN is not properly working and images aren't loading. Can I automatically get a notification whenever the CDN is not working properly? The client ...
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2answers
278 views

Do I need to redirect my CDN subdomain www version to the non-www

I just uploaded some images to a CDN that is available under: http://subdomain.example.com/image/filename.jpg So I need to make any redirect as I do for the main domain? In that case I redirect the ...
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1answer
349 views

Is it possible to have CloudFlare cache static files, but only serve them to specific users?

I want to use CloudFlare as a CDN to cache and serve a static file in order to reduce the load on my server, however, the catch is that I only want this file to be served to paid users since it's an ...
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1answer
64 views

My Site Still Caches Its First Homepage from 6 Months Ago

I use W3 Total Cache and CloudFlare (free-tier) as my CDN. For whatever reason, my WordPress site still caches the first version of its "Front Page" (not a posts page) for new user sessions, across ...
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1answer
77 views

How to pass requested domain to server when behind MaxCDN?

I have a bit of a problem getting our server to know what domain was requested to get to the server. The scenario is like this. site1.tld, site2.tld, site3.tld and site4.tld are all pointing to ...
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1answer
678 views

Can CloudFlare use different origins based on path pattern?

I'm trying to switch from AWS CloudFront to CloudFlare. Currently, my web site is hosted on EC2 and my large static files are placed in S3 separately. CloudFront let me serve the web pages and the ...
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234 views

Should images moved to CDN be 301 redirected?

I've seen a couple different questions or this one, similar to this, but they didn't really answer my question all they way. I have a site I built for a friend about a year ago and I recently had all ...
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1answer
42 views

Benefits of CDN for the providers of online libraries

I know benefits of using cdn for ones website and I have been using cdn for 5 years now. But my question is, Sites like jQuery, Bootstrap, Web Fonts, ... that provide free cdn for their products that ...
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2answers
26 views

Measuring if I actually need to put my images in to a CDN?

I am currently evaluating adding CDN capability to our website. I know however I do not want to go through the effort, or pay the cost associated unless I can measure the improvements. So therefore, I ...
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4answers
9k views

Local files vs. CDN

If a website load time is a concern, which is generally better to use when referencing a JavaScript or CSS file? Would using a CDN be better or would that just add more HTTP requests?
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What CDN features are the most important when picking a CDN provider?

Price and a number of PoP's surely do matter. But if I was after choosing one CDN provider out of 10 similar ones, what CDN features would be the most important? Which ones do really matter for ...
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CDNify Not Getting Assets

I'm trying to add my website as a resource on CDNify, but it doesn't seem to be fetching my assets nor caching them. From their website: How long does it take the CDN to setup? 5-10 minutes, ...
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3answers
142 views

What Ranks Better? Faster Server located in foreign country or Slower Server from same country?

95% of my website traffic is from India and 5% from USA. What happens if I host my server with higher resources in USA or with lower resources in India. Will it have any effect on the ranking of my ...
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2answers
531 views

jQuery not loading from CDN

I have a custom CMS, and for some reason jQuery will not load from the CDN. After sitting on this for days, I remember I made a change the the .htaccess file but not sure if it's really the cause. ...