Wandapv.com Site Title
扬州市宛大光电有限公司|太阳能光伏产品研制
Wandapv.com Meta Description
扬州市宛大光电有限公司成立于2010年08月30日，注册地位于高邮市天山镇工业集中区，法定代表人为王源。经营范围包括太阳能光伏产品研制、开发，单晶硅、多晶硅切片、销售，单晶硅棒、太阳能电池组件及配件、太阳能电池、太阳能发电设备、太阳能电池板、光伏逆变器制造、加工、销售，太阳能光伏电站、太阳能分布式电站、地面电站、太阳能并网系统、离网系统、微网系统设计、施工、安装，网络贸易代理，自营和代理各类商品及技术的进出口业务（国家限定企业经营或禁止进出口的商品和技术除外）。（依法须经批准的项目，经相关部门批准后方可开展经营活动）许可项目：各类工程建设活动；电线、电缆制造；建设工程设计（依法须经批准的项目，经相关部门批准后方可开展经营活动，具体经营项目以审批结果为准）一般项目：照明器具制造；照明器具销售；交通及公共管理用金属标牌制造；交通及公共管理用标牌销售；半导体照明器件制造；半导体照明器件销售；电线、电缆经营；园林绿化工程施工；电池销售；金属结构制造；金属结构销售；通信设备制造；通信设备销售（除依法须经批准的项目外，凭营业执照依法自主开展经营活动）扬州市宛大光电有限公司对外投资1家公司。
Wandapv.com Test Results
Wandapv.com Mobile Performance: 90/100
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 348 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.
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.
Largest Contentful Paint element
3,490 ms
This is the largest contentful element painted within the viewport. Learn more about the Largest Contentful Paint element
Eliminate render-blocking resources
Potential savings of 80 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.
Efficiently encode images
Potential savings of 62 KiB
Optimized images load faster and consume less cellular data. Learn how to efficiently encode images.
Properly size images
Potential savings of 164 KiB
Serve images that are appropriately-sized to save cellular data and improve load time. Learn how to size images.
Defer offscreen images
Potential savings of 221 KiB
Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. Learn how to defer offscreen images.
Serve static assets with an efficient cache policy
33 resources found
A long cache lifetime can speed up repeat visits to your page. Learn more about efficient cache policies.
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
Wandapv.com Mobile SEO: 100/100
Quick overview:
Wandapv.com Mobile Best Practices: 62/100
Quick overview:
Trust and Safety
Does not use HTTPS
34 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.
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.
General
Uses deprecated APIs
1 warning found
Deprecated APIs will eventually be removed from the browser. Learn more about deprecated APIs.
Wandapv.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.
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.
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.
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