Metel.cn Site Title
多媒体教学资源平台
Metel.cn Meta Description
MeTeL（多媒体教学资源库平台）是由国道数据提供，目前国内最大的连续动态更新的英文多媒体课程数据库之一。
MeTeL适用于研究生、本科生、留学生的自主学习（eLearning）及线上教学（Online Learning）；
MeTeL为一线教师数字化授课备课（eTeaching）提供参考资料、素材，同时提供精准的学习分析大数据；
MeTeL的数据内容主要是国外名校的教师数字化授课智慧结晶，包括讲义、课件、大纲、教材、音视频、作业、习题、阅读材料等28种，与以往的视频数据库完全不同，也不同于单纯的英语语言学习数据库。
MeTeL提供了针对国内高校机构和VIP教师个人的共建共享增值服务。
MeTeL现已开辟国内线上课程专版，集中展示我国高校教师在线教学成果，便于学生进行在线自学；同时开启密泰尔学堂-云课程移动端版本，支撑教师的在线教学活动顺利进行；教师可在平台快速创建课程，极速审核通过，PC端及移动端实时发布，共同战胜疫情。
Metel.cn Test Results
metel.cn Mobile Usability: 99/100
Quick overview:
Size tap targets appropriately
Some of the links/buttons on your webpage may be too small for a user to easily tap on a touchscreen. Consider making these tap targets larger to provide a better user experience.
The following tap targets are close to other nearby tap targets and may need additional spacing around them.
The tap target
<a href="http://www.guo…p/Default.aspx">在线教程</a> and 5 others are close to other tap targets.
metel.cn Mobile Speed: 64/100
Quick overview:
Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 2 blocking script resources and 2 blocking CSS resources. This causes a delay in rendering your page.
None of the above-the-fold content on your page could be rendered without waiting for the following resources to load. Try to defer or asynchronously load blocking resources, or inline the critical portions of those resources directly in the HTML.
http://metel.cn/app/vendor.d74e2d39.js
...
Optimize CSS Delivery of the following:
http://metel.cn/app/vendor.24256aaf.css
...
Leverage browser caching
Setting an expiry date or a maximum age in the HTTP headers for static resources instructs the browser to load previously downloaded resources from local disk rather than over the network.
Leverage browser caching for the following cacheable resources:
http://metel.cn/api/category/getusercategory (expiration not specified)
...
Prioritize visible content
Your page requires additional network round trips to render the above-the-fold content. For best performance, reduce the amount of HTML needed to render above-the-fold content.
The entire HTML response was not sufficient to render the above-the-fold content. This usually indicates that additional resources, loaded after HTML parsing, were required to render above-the-fold content. Prioritize visible content that is needed for rendering above-the-fold by including it directly in the HTML response.
None of the final above-the-fold content could be rendered even with the full HTML response.
Optimize images
Properly formatting and compressing images can save many bytes of data.
Optimize the following images to reduce their size by 2.1KiB (46% reduction).
Compressing http://metel.cn/assets/images/home-header-product.png could save 2.1KiB (46% reduction).
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