Questions tagged [cdn]

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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CDN (CloudFlare) not updated [closed]

A friend of mine in France has this website in WordPress, hosted by IONOS, and it seems to run in a CDN (CloudFlare). Part of the site that's not in WP runs in an iframe. He applied some changes to ...
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Website performance gone down after cloudflare cdn activated

I wanted to checkout Cloudflare CDN free version for old website and activate CDN for it and noticed that website performance was hit after activating CDN. What could be reason as I am new to ...
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Effect of a CDN on latency of an overseas web server

I'm trying to understand the effect a CDN can have on latency. I tried pinging three different web servers, two of which are based in France. Here are the results I got at the time of the test: ...
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Is cloudlayar a legit protection service?

I recently came across a very cheap protection service similar to Cloudflare called Cloudlayar: https://cloudlayar.com/ It's a bit weird because the prices are too good to be true, no PayPal (so ...
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24 views

Cache-Control for ads.txt, robots.txt and sitemap.xml files that are generated dynamically

I have some "static files" that I build on the fly, because they are generated dynamically. ads.txt robots.txt sitemap.xml What is the ideal Cache-Control for those files? PS: My server is ...
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How to ensure image search optimization when hosting on a content delivery network?

To improve my websites' user experience, I want to optimize site speed, as well as search engine ranking. Google stated that Improving web speed can benefit ranking in search engine results, but apart ...
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141 views

Is there a risk to hosting service if hot-potato site is using cloudflare?

Picture a politically hot website that might be subject to a DDOS attack. If that site is hosted at examplehosting.com and then uses cloudflare or another CDN, is the hosting service vulnerable to a ...
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23 views

Disable hotlinking or saving or your images online?

I have some JavaScript and CSS to block right clicks and stuff and everything is on cloudflare CDN which tells me when I get hotlinked. Is there a way to stop this?
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Can WordPress plugins W3 Cache, Autoptimize, Stackpath CDN, and Shortpixel be used together? [closed]

I'm trying to combine some WordPress plugins to speed up my websites. Can I use W3 Cache Autoptimize a CDN with Stackpath, Shortpixel Image Optimization together at the same time? Are there any ...
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30 views

Why does Cloudflare seem to be caching 522 responses for resources?

I have a number of different websites hosted in cpanel and proxied through Cloudflare. The symptoms I'm getting are as follows: One of my hosted customers will contact me to say something isn't ...
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56 views

Is there any way to find main domain with addon domain?

I want to rent a host that support 8 addon domains. I will use the Cloudflare CDN for my domains. Please tell me is that possible for others (people or robots) to identify my other websites? Thanks
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How does Cloudflare do HTTPS for my site when I haven't provided them with an ssl certificate?

I setup cloudflare today. It only asked me to add its nameservers to my domain. After doing that I'm able to access my site at my domain name but it's now cloudflare's IP. This is all good and as ...
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45 views

Why do CDNs use push for larger files?

As I learn about Content Delivery Networks (CDNs), every source I read online says that pull zones are used more frequently, while push zones are used for larger files or files that don't change often....
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24 views

Has jsdelivr stopped to provide js-lib concat service?

I used jsdelivr for a long time. It has a very strong feature: https://cdn.jsdelivr.net/g/jquery@3.2.1,jquery.ui@1.11.4 However, recently it looks like they've stopped updating this. For instance, ...
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How 'Not to Cache' WordPress Admin Panel Over CloudFront?

I've setup a CloudFront distribution to benefit from AWS global caching service. I want to compare the performance before applying it onto the main domain. The setup is as follows: Main domain is ...
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57 views

Migration from Jetpack Image CDN to Cloudflare

Like most of the Wordpress site owners, I have been using Jetpack's Image CDN for delivering images across the world on my site. Lately, I came across this article stating that there is no harm in ...
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Geo specific content and CDN caching [closed]

Our Wordpress website has a list of products which is generated on the server side. Depending on user ip (country) the list gets populated with different items. Some products are meant to be displayed ...
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Increase of Googlebot response time after CDN implementation

Problem: We have a site hosted in Germany that is suffixed with ".de". Recently, we implemented a CDN with Cloudflare. Shortly after our Googlebot response times increased from 60-100ms to 400-500ms. ...
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32 views

CDN cached PHP page vs HTML one - Loading speed

Is there any difference at all in terms of loading speed if we have a fully cached PHP generated site (by for example, using CloudFlare rules "Cache everything") and a HTML page? Cloudflare allows ...
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50 views

Can you Bring Your Own IP to Akamai?

Most clouds allow one to bring ones own IP networks. Is this also possible with Akamai or is one stuck with their networks?
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Googlebot-Image incorrectly crossing domain URLs

My website (www.example.com) has all of my images hosted via CDN under a different sub-domain (cdn.example.com). We've noticed an odd behavior recently, that seems as though Googlebot-Image/1.0 is ...
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39 views

Why don't CDNs reveal an IP to be used as an ANAME (alias)?

I've read through the docs on AWS CloudFront and CloudFlare CDN, and both of them appear to require either ownership (to be the registrar) of a domain, or at least to have their DNS pointed to as the ...
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When you use a cdn to deliver images how does google index it?

I have started using a CDN on my website, the image links are as follows: "https://cdn.shortpixel.ai/client/q_lossy,ret_img/https://my-domain-name.example/wp-content/uploads/2018/12/logo-1.png In ...
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230 views

Is CDN bad for image SEO?

I found a blog post on Shopify about image optimization with the following statement: By placing your images on a CDN, you are most likely removing the image from your domain and placing it on the ...
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288 views

What to do when changing or moving off of a CDN to redirect images?

I am moving a site off of a CDN where all the images are cached and served: https://some-cdn.example/my-image.jpg The image will now live here: https://myurl.example/my-image.jpg Many of these ...
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1k views

IllegalLocationConstraintException on CloudFront (with S3)

I have created an S3 and I uploaded files on the bucket successfully. Now, I am trying to make it work with CloudFront however it is giving me IllegalLocationConstraintException The ap-east-1 ...
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How do I register a custom domain in Azure when I cannot add the Azure Web App hostname as a CNAME to our domain?

Let's assume we're running a website on greatwebsite.com. This is a multilingual website, and we're using /en, /de, /fr as path prefixes to handle languages (and not via top level domains). We're ...
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When using an image server on a separate domain, should we link directly to the image URL and restrict crawling, or redirect through our domain?

I have a large number of images stored on a separate server, these URLs currently go through a 302 redirect. I think these additional pages are a total waste of time for Google to crawl. At the ...
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39 views

How can CloudFlare help me? [duplicate]

CloudFlare help needed Recently I was looking for a free CDN service. I was looking for free subscription. Someone suggested me cloudflare for this. I registered here but it seems to be complex for ...
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3k views

Using the Internet Archive’s Wayback Machine as a CDN

Can the Internet Archive’s Wayback Machine be used as a content-distribution network (CDN)? Aside from the moral problem of stealing bandwidth from an organization I love, would serving a unique file ...
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2k views

ERROR: The request could not be satisfied - Amazon CloudFront CDN

Amazon's Cloudfront CDN requires correct connection to your origin in order to work properly without any 502 bad gateway error. I did setup everything alright. For example: Cloudfront URL: https://...
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356 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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973 views

Disable caching for subdomain on Cloudflare?

How can I disable caching for a subdomain on Cloudflare but keep SSL?
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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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554 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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746 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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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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44 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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557 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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39 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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1k 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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3k 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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229 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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55 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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444 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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456 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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441 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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883 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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60 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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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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