Chem99.com Site Title

卓创资讯化工 - 中国化工资讯行业第一门户

Chem99.com Meta Description

提供石油、化工、塑料、橡胶、天然气、化纤、煤炭等多个门类、几百个小类、上万种产品的行情资讯;旨在为行业内企业的经营运作提供资讯与商机,辅助企业决策和决策的执行。

Chem99.com Test Results

Chem99.com Mobile Usability: 61/100

Quick overview:
Use legible font sizes
The following text on your page renders in a way that may be difficult for some of your visitors to read. Use legible font sizes to provide a better user experience.
The following text fragments have a small font size. Increase the font size to make them more legible.
为中国争夺大宗商品定价话语权 renders only 5 pixels tall (12 CSS pixels).
...
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.sci99.com/" class="block">卓创资讯主站</a> and 3 others are close to other tap targets.
...
Configure the viewport
Your page does not have a viewport specified. This causes mobile devices to render your page as it would appear on a desktop browser, scaling it down to fit on a mobile screen. Configure a viewport to allow your page to render properly on all devices.
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 1,000 CSS pixels wide, but the viewport is only 980 CSS pixels wide. The following elements fall outside the viewport:
The element <a id="J_headhover" class="sjx block">数据与服务</a> falls outside the viewport.
...

Chem99.com Mobile Speed: 67/100

Quick overview:
Optimize images
Properly formatting and compressing images can save many bytes of data.
Optimize the following images to reduce their size by 243.9KiB (36% reduction).
Compressing http://www.chem99.com/images/banner/aboutzc.jpg could save 61.6KiB (28% reduction).
...
Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 3 blocking CSS resources. This causes a delay in rendering your page.
Optimize CSS Delivery of the following:
http://www.chem99.com/styles/base.css
...
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 8.1KiB (56% reduction).
Compressing http://ers.baidu.com/app/s.js?siteId=1778068&goTop=1 could save 8.1KiB (56% reduction).
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://www.chem99.com/styles/base.css (5 days)
...
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 4KiB (21% reduction).
Minifying http://img.sciimg.com/static/public/scripts/js/public.js?v=20160608.1 could save 4KiB (21% reduction) after compression.
Minify CSS
Compacting CSS code can save many bytes of data and speed up download and parse times.
Minify CSS for the following resources to reduce their size by 562B (14% reduction).
Minifying http://www.chem99.com/styles/common.css could save 562B (14% reduction) after compression.

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