Jd37.com Site Title

机电商情网_中国机电电子商务行业网络专业品牌

Jd37.com Meta Description

机电商情网（www.jd37.com）是中国专业的机电行业门户网站，是机电产品供应商及采购商的网上贸易电子商务交易平台，是免费的B2B行业网站信息发布平台，是机电工程技术人员的交流平台，为机电企业打通上下游产业链。

Jd37.com Test Results

jd37.com Mobile Usability: 74/100

Quick overview:
Size content to viewport
The page content is too wide for the viewport, forcing the user to scroll horizontally. Size the page content to the viewport to provide a better user experience.
The page content is 1,190 CSS pixels wide, but the viewport is only 412 CSS pixels wide. The following elements fall outside the viewport:
The element <div id="destoon_member" class="topbar-right clearfix"> falls outside the viewport.
...
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 <li class="on">供应</li> is close to 1 other tap targets .
...

jd37.com Mobile Speed: 53/100

Quick overview:
Optimize images
Properly formatting and compressing images can save many bytes of data.
Optimize the following images to reduce their size by 415.4KiB (43% reduction).
Compressing http://www.jd37.com/file/upload/201707/18/171524431.jpg could save 166.3KiB (76% reduction).
...
Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 10 blocking script resources and 3 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.
Remove render-blocking JavaScript:
http://www.jd37.com/lang/zh-cn/lang.js
...
Optimize CSS Delivery of the following:
http://www.jd37.com/skin/jd372015/css/bootstrap.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://c.cnzz.com/core.php?web_id=1000023756&t=z (15 minutes)
...
Enable compression
Compressing resources with gzip or deflate can reduce the number of bytes sent over the network.
Enable compression for the following resources to reduce their transfer size by 86.3KiB (64% reduction).
Compressing http://www.jd37.com/skin/jd372015/js/jquery.min.js could save 58.8KiB (64% reduction).
...
Minify JavaScript
Compacting JavaScript code can save many bytes of data and speed up downloading, parsing, and execution time.
Minify JavaScript for the following resources to reduce their size by 4.4KiB (27% reduction).
Minifying http://www.jd37.com/file/script/jquery.lazyload.js could save 2.7KiB (47% reduction).
...

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