Dav01.com Site Title
DAV数字音视工程网_会议系统、指挥调度、演艺科技、智能楼宇等音视频工程信息行业门户
Dav01.com Meta Description
DAV数字音视工程网(dav01.com)是音视频工程行业权威门户网站,为您提供全面及时的项目,招标信息,厂商动态,工程技术资源和详尽准确的产品信息及相关厂家,经销商,工程商信息.包括大屏显示,信号处理,集中控制,数字会议,音频扩音,灯光舞台,公共广播,监控安防,摄录编播,远程音视涉及的会议系统,视频会议,多媒体会议,多功能会议,指挥中心,指挥调度,投影机,虚拟仿真,大屏幕,监控,公共广播,项目招
Dav01.com Test Results
dav01.com Mobile Usability: 87/100
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 879 CSS pixels wide, but the viewport is only 412 CSS pixels wide. The following elements fall outside the viewport:
The element
<a href="http://m.dav01…/a6230093.html">MediaComm美凯约你一起聊聊智慧新警务</a> falls outside the viewport.
...
dav01.com Mobile Speed: 40/100
Quick overview:
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://img.dav01.com/e/2015/6/2/davinfo_1_1433228159818_818146789.jpg (expiration not specified)
...
Optimize images
Properly formatting and compressing images can save many bytes of data.
Optimize the following images to reduce their size by 466.3KiB (50% reduction).
Compressing http://img.dav01.com/p/2019/10/22/davinfo_230603_1571715676337_281810125.jpg could save 150.2KiB (74% reduction).
...
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.
Only about 3% of the final above-the-fold content could be rendered with the full HTML response.
...
Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 2 blocking script resources and 7 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://static.dav01.com/site/2017/js/lib/require.js
...
Optimize CSS Delivery of the following:
http://static.dav01.com/site/common/css/bootstrap.min.css
...
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 1KiB (18% reduction).
Minifying http://static.dav01.com/site/2017/js/common.js could save 673B (18% 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 962B (13% reduction).
Minifying http://static.dav01.com/site/newhome/styles/index.css could save 962B (13% reduction) after compression.
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