Zjduyuan.com Site Title

商城网站及app系统定制开发、浙江杜元科技有限公司

Zjduyuan.com Meta Description

浙江杜元科技有限公司成立于2016年05月20日，注册地位于浙江省杭州市拱墅区登云路518号恒策西城时代中心2幢1211室，法定代表人为沈科。经营范围包括计算机软硬件、电子技术、通讯技术、环保技术、节能技术、新能源技术、汽车配件的技术开发、技术咨询、技术服务、成果转让；经济信息咨询；实业投资、投资管理（以上项目未经金融等监管部门批准，不得从事向公众融资存款、融资担保、代客理财等金融服务）；展览展示服务；市场营销策划；汽车内装饰用品、汽车配件、家居用品、机电设备、办公用品、通讯设备、建筑材料、钢材、装饰材料、金属材料、煤炭（无储存）、燃料油（除危险化学品）、汽车、二手车、工艺美术品、日用百货、字画（除文物）、计算机软硬件、电子元器件、电子产品、仪器仪表、空调、办公自动化设备、化工原料及产品（除危险化学品及易制毒化学品）的批发、零售；货物进出口（法律、行政法规禁止经营的项目除外，法律、行政法规限制经营的项目取得许可后方可经营）。

Zjduyuan.com Test Results

Zjduyuan.com Mobile Performance: 96/100
Quick overview:
Diagnostics
More information about the performance of your application. These numbers don't directly affect the Performance score.
Serve images in next-gen formats
Potential savings of 152 KiB
Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. Learn more about modern image formats.
Properly size images
Potential savings of 154 KiB
Serve images that are appropriately-sized to save cellular data and improve load time. Learn how to size images.
Reduce unused CSS
Potential savings of 19 KiB
Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. Learn how to reduce unused CSS.
Image elements do not have explicit `width` and `height`
Set an explicit width and height on image elements to reduce layout shifts and improve CLS. Learn how to set image dimensions
Serve static assets with an efficient cache policy
30 resources found
A long cache lifetime can speed up repeat visits to your page. Learn more about efficient cache policies.
Eliminate render-blocking resources
Potential savings of 0 ms
Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. Learn how to eliminate render-blocking resources.
Max Potential First Input Delay
650 ms
The maximum potential First Input Delay that your users could experience is the duration of the longest task. Learn more about the Maximum Potential First Input Delay metric.

Zjduyuan.com Mobile SEO: 100/100
Quick overview:

Zjduyuan.com Mobile Best Practices: 79/100
Quick overview:
Trust and Safety
Does not redirect HTTP traffic to HTTPS
Make sure that you redirect all HTTP traffic to HTTPS in order to enable secure web features for all your users. Learn more.
Does not use HTTPS
31 insecure requests found
All sites should be protected with HTTPS, even ones that don't handle sensitive data. This includes avoiding mixed content, where some resources are loaded over HTTP despite the initial request being served over HTTPS. HTTPS prevents intruders from tampering with or passively listening in on the communications between your app and your users, and is a prerequisite for HTTP/2 and many new web platform APIs. Learn more about HTTPS.
Zjduyuan.com Mobile Accessibility: 74/100
Quick overview:
Contrast
These are opportunities to improve the legibility of your content.
Background and foreground colors do not have a sufficient contrast ratio.
Low-contrast text is difficult or impossible for many users to read. Learn how to provide sufficient color contrast.
Best practices
These items highlight common accessibility best practices.
`[user-scalable="no"]` is used in the `<meta name="viewport">` element or the `[maximum-scale]` attribute is less than 5.
Disabling zooming is problematic for users with low vision who rely on screen magnification to properly see the contents of a web page. Learn more about the viewport meta tag.
Navigation
These are opportunities to improve keyboard navigation in your application.
Heading elements are not in a sequentially-descending order
Properly ordered headings that do not skip levels convey the semantic structure of the page, making it easier to navigate and understand when using assistive technologies. Learn more about heading order.
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