cdn

Cross-Origin Resource Sharing (Access-Control-Allow-Origin header) Rackspace Cloudfiles CDN

由 不羁的心 提交于 2019-12-14 01:50:16
问题 I am getting the following error on our live site in Chrome due to embedded font files in CSS all on our rackspace CDN: Font from origin 'https://aaa-aaa.ssl.cf3.rackcdn.com' has been blocked from loading by Cross-Origin Resource Sharing policy: No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'https://www.mysite.co.uk' is therefore not allowed access. How do I add the Access-Control-Allow-Origin header on to the response when GETting these files from the

CDN如何提高站点性能？

由 无人久伴 提交于 2019-12-13 14:03:04
智能手机和廉价互联网的到来导致了更多的互联网用户。因此，企业别无选择，只能在线上迎合客户。公司希望他们的企业具有在线形象，以便与客户互动，产生潜在客户并改善业务。公司要做的第一件事就是创建一个网站。 至关重要的是要了解，网站加载时间对于网站的成功至关重要。智简魔方根据SEO专家进行的一项研究表明，超过75％的网站的加载时间少于5秒（来源）。因此，如果您的网站花费的时间比其他网站花费的时间长，那么客户等待网站加载的可能性就很小。您是否已经在考虑如何提高网站性能以避免丢失客户？ 好吧，各种方法和技巧都可以帮助您缩短网站的加载时间；最简单有效的方法是使用内容交付网络（CDN）。 什么是内容交付网络？ 内容交付网络主要是由地理位置分散的服务器组成的网络，这些服务器存储网站的缓存并充当服务器和用户之间的中间实体。加载时间缓慢的最常见原因之一是您网站的托管服务器与实际用户之间的距离。让我们假设您的服务器在美国，而您的访客来自印度；从美国到印度传输数据可能要花费大量时间，这会导致延迟。 如果您使用的是CDN，则当印度用户访问您的网站时，该查询将不会定向到美国。CDN服务提供商将查询定向到距离印度最近的服务器，并将数据传回，从而立即加载该网站。同样，如果您的用户正在从澳大利亚访问您的网站，则CDN会将请求定向到距离澳大利亚最近的服务器，从而缩短了加载时间。 CDN如何运作？

Why would we not use JavaScript library on a CDN if the webpage is using SSL (https)?

由 不打扰是莪最后的温柔 提交于 2019-12-13 13:37:57
问题 For JavaScript libraries such as jQuery or YUI3, either Google or Yahoo are hosting the scripts on their CDN, and a YUI 3 Cookbook paragraph says: perhaps your pages use SSL, in which case loading remote resources is a bad idea, as it exposes your users’ secure information to the remote site I can only see that the CDN site must be well trusted, or else malicious JavaScript can be running on www.mycompany.com's webpages. But assuming the CDN sites (Google and Yahoo) are well trusted, why

Best performance for storing static files (images, css, javascript) - CDN - BlobStorage or WebRole

由 走远了吗. 提交于 2019-12-13 12:29:33
问题 I have a very basic question about CDN - BlobStorage and WebRole, and perfrormance. I have a very simple web site with static content, HTML, Js, Images, CSS & videos (totally could me max 3-5MB the whole content if the users visit all the site). The traffic of my web site will be 98% from UK and I am planning to have a maximum of 500.000 unique visitors per day. My question is about performance. Would you recommend me enabling CDN on my webrole? Would I benefit from it? is there a benefit

How can I filter the domains served by a CDN from a list of domain names?

由 女生的网名这么多〃 提交于 2019-12-13 09:32:11
问题 I have a list of domains and I need to filter the domains served by a CDN(Content Delivery Network). I am going to use python script to do that. At the first I was thinking I can identify them from the domain name. But not all of the domain names have cdn keyword. Is there any reason or any feature in the CDN served domains which I use that for identifying CDN served domains? 回答1: First of all, you can't do it with 100% accuracy. But you can identify domains using popular cloud providers in

Separate Domain Registrar and Host, possible to use CDN?

由 孤者浪人 提交于 2019-12-13 08:59:13
问题 I am just wondering if this is possible/how I could go about doing this. I work for a company that has their domain name registered on Site A while their hosting is on Site B . This is no issue as we just have the Registrar at Site A point the Name Servers to Site B . Easy. Where I get a little confused, is say I would like to use a CDN such as CloudFlare ( Site C ), typically in a basic case, I would go to the registrar/host and just change my Name Servers to the ones given by CloudFlare.

How to add delay between repeating infinite animation via CSS override

由 匆匆过客 提交于 2019-12-13 07:52:27
问题 I'm serving up Animate.css from this CDN to my WordPress site and would like to create some CSS class overrides that will allow me to delay the amount of time that occurs, before the animation repeats. Currently, the animations are set to "infinite" repeat. Here's a live example of how the animated image just keeps repeating, very quickly. I'd like to be able to apply class="delay4" for example, if I wanted there to be a 4s delay after an animation occurs. Then after those 4s the animation

Configuration Paperclip with cloudfront

由 点点圈 提交于 2019-12-13 07:26:37
问题 I am trying to configure paperclip with cloudfront and my urls aren't coming back with the right path or domain. This is my paperclip config: s3_cr edentials: { access_key_id: ENV.fetch("S3_ACCESS_KEY"), secret_access_key: ENV.fetch("S3_SECRET"), bucket: ENV.fetch("S3_BUCKET"), }, storage: :s3, url: ':s3_alias_url', s3_host_alias: "xxxx.cloudfront.com", s3_headers: { "Cache-Control" => "max-age=31557600" }, s3_protocol: "https", path: ":rails_root/public/spree/products/:id/:style/:basename.

Shopify blog feeding mailchimp campaign doesn't display images

由 醉酒当歌 提交于 2019-12-13 05:43:17
问题 I'm setting up a simple Mailchimp campaign for a client which mails the latest blog post on a Shopify website. Mailchimp reads the entries from the site's RSS feed (via feedburner) and displays them in an email template but the blog's images are always broken links. The images have been uploaded directly to Shopify for the articles and are delivered through it's content delivery network. References appear similar to: <img src="//cdn.shopify.com/s/files/1/2222/3333/files/my-image.jpg?1234" />

Wait for Javascript load from CDN

由 ﹥＞﹥吖頭↗ 提交于 2019-12-13 05:14:32
问题 I have this block of javascript in a Rails app, with turbo-link enabled: <script type="text/javascript" language="javascript" src="//cdn.datatables.net/1.10.0/js/jquery.dataTables.min.js"></script> <script type="text/javascript" language="javascript" src="//cdn.datatables.net/plug-ins/be7019ee387/integration/bootstrap/3/dataTables.bootstrap.js"></script> <script type="text/javascript" charset="utf-8"> var ready = function() { setTimeout(function() { $('#table-products').dataTable(); }, 100);
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