Dd-lightingshow.com Site Title

舞台灯光-音响设备安装服务-电气机械设备销售-广东丽舍文旅灯光科技有限公司

Dd-lightingshow.com Meta Description

广东丽舍文旅灯光科技有限公司成立于2014年11月06日，注册地位于广州市花都区新雅街清布村联乡南路1号自编366房（空港花都），法定代表人为刘美媛。经营范围包括舞台灯光、音响设备安装服务;电气机械设备销售;专用设备安装（电梯、锅炉除外）;通用机械设备销售;照明灯光设计服务;舞台机械设计安装服务;舞台安装、搭建服务;体育用品及器材批发;其他文化娱乐用品批发;商品批发贸易（许可审批类商品除外）;商品零售贸易（许可审批类商品除外）;货物进出口（专营专控商品除外）;技术进出口;体育器材装备安装服务;可移动看台安装服务;舞台表演美工服务;群众参与的文艺类演出、比赛等公益性文化活动的策划;舞台表演道具服务;竞技体育科技服务;全民健身科技服务;体育工程科技服务;灯具、装饰物品批发;家用电器批发;家具批发;机械配件批发;计算机批发;计算机零配件批发;软件批发;广播设备及其配件批发;电视设备及其配件批发;电影设备及其配件批发;金属制品批发;电子产品批发;露天游乐场所游乐设施批发;专用设备销售;电线、电缆批发;电工器材的批发;体育用品及器材零售;家用视听设备零售;日用家电设备零售;计算机零售;计算机零配件零售;软件零售;家具零售;电工器材零售;通用机械设备零售;机械配件零售;机械设备租赁;建筑工程机械与设备租赁;计算机及通讯设备租赁;灯光设备租赁;音频和视频设备租赁;视频设备出租服务;公共关系服务;策划创意服务;市场营销策划服务;广告业;会议及展览服务;商务文印服务;公司礼仪服务;大型活动组织策划服务（大型活动指晚会、运动会、庆典、艺术和模特大赛、艺术节、电影节及公益演出、展览等，需专项审批的活动应在取得审批后方可经营）;园林绿化工程服务;室内体育场、娱乐设施工程服务;娱乐设备出租服务;体育设备、器材出租;企业管理咨询服务;企业形象策划服务;文化艺术咨询服务;体育运动咨询服务;景观和绿地设施工程施工;建筑钢结构、预制构件工程安装服务;室内装饰设计服务;桥梁伸缩装置销售;室外体育设施工程施工;室外娱乐用设施工程施工;新材料技术开发服务;节能技术开发服务;机械技术推广服务;机械技术开发服务;机械技术咨询、交流服务;增材制造及激光制造领域的技术推广和应用服务;信息电子技术服务;电力电子技术服务;软件技术推广服务;机器人系统技术服务;文化推广（不含许可经营项目）;文化传播（不含许可经营项目）;广东丽舍文旅灯光科技有限公司对外投资1家公司。

Dd-lightingshow.com Test Results

Dd-lightingshow.com Mobile Performance: 58/100
Quick overview:
Insights
Optimize viewport for mobile
Tap interactions may be delayed by up to 300 ms if the viewport is not optimized for mobile.
Improve image delivery
Reducing the download time of images can improve the perceived load time of the page and LCP. Learn more about optimizing image size
Third parties
Third party code can significantly impact load performance. Reduce and defer loading of third party code to prioritize your page's content.
Render blocking requests
Requests are blocking the page's initial render, which may delay LCP. Deferring or inlining can move these network requests out of the critical path.
Document request latency
Your first network request is the most important. Reduce its latency by avoiding redirects, ensuring a fast server response, and enabling text compression.
LCP request discovery
Optimize LCP by making the LCP image discoverable from the HTML immediately, and avoiding lazy-loading
Diagnostics
More information about the performance of your application. These numbers don't directly affect the Performance score.
Eliminate render-blocking resources
Potential savings of 1,330 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.
Avoid multiple page redirects
Potential savings of 630 ms
Redirects introduce additional delays before the page can be loaded. Learn how to avoid page redirects.
Efficiently encode images
Potential savings of 13 KiB
Optimized images load faster and consume less cellular data. Learn how to efficiently encode images.
Serve images in next-gen formats
Potential savings of 2,622 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.
Defer offscreen images
Potential savings of 126 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.
Largest Contentful Paint element
13,220 ms
This is the largest contentful element painted within the viewport. Learn more about the Largest Contentful Paint element
Reduce unused JavaScript
Potential savings of 103 KiB
Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. Learn how to reduce unused JavaScript.
Properly size images
Potential savings of 970 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 57 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.
Avoid `document.write()`
For users on slow connections, external scripts dynamically injected via `document.write()` can delay page load by tens of seconds. Learn how to avoid document.write().
Minify CSS
Potential savings of 5 KiB
Minifying CSS files can reduce network payload sizes. Learn how to minify CSS.
Avoid enormous network payloads
Total size was 4,250 KiB
Large network payloads cost users real money and are highly correlated with long load times. Learn how to reduce payload sizes.
Ensure text remains visible during webfont load
Leverage the `font-display` CSS feature to ensure text is user-visible while webfonts are loading. Learn more about `font-display`.
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
Preload Largest Contentful Paint image
If the LCP element is dynamically added to the page, you should preload the image in order to improve LCP. Learn more about preloading LCP elements.
Serve static assets with an efficient cache policy
59 resources found
A long cache lifetime can speed up repeat visits to your page. Learn more about efficient cache policies.
Avoid serving legacy JavaScript to modern browsers
Potential savings of 0 KiB
Polyfills and transforms enable legacy browsers to use new JavaScript features. However, many aren't necessary for modern browsers. For your bundled JavaScript, adopt a modern script deployment strategy using module/nomodule feature detection to reduce the amount of code shipped to modern browsers, while retaining support for legacy browsers. Learn how to serve modern JavaScript
Time to Interactive
16.9 s
Time to Interactive is the amount of time it takes for the page to become fully interactive. Learn more about the Time to Interactive metric.

Dd-lightingshow.com Mobile SEO: 92/100
Quick overview:
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Image elements do not have `[alt]` attributes
Informative elements should aim for short, descriptive alternate text. Decorative elements can be ignored with an empty alt attribute. Learn more about the `alt` attribute.

Dd-lightingshow.com Mobile Best Practices: 79/100
Quick overview:
Trust and Safety
Does not use HTTPS
1 insecure request 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.
General
Browser errors were logged to the console
Errors logged to the console indicate unresolved problems. They can come from network request failures and other browser concerns. Learn more about this errors in console diagnostic audit
Dd-lightingshow.com Mobile Accessibility: 73/100
Quick overview:
Names and labels
These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.
Buttons do not have an accessible name
When a button doesn't have an accessible name, screen readers announce it as "button", making it unusable for users who rely on screen readers. Learn how to make buttons more accessible.
`<frame>` or `<iframe>` elements do not have a title
Screen reader users rely on frame titles to describe the contents of frames. Learn more about frame titles.
Links do not have a discernible name
Link text (and alternate text for images, when used as links) that is discernible, unique, and focusable improves the navigation experience for screen reader users. Learn how to make links accessible.
Image elements do not have `[alt]` attributes
Informative elements should aim for short, descriptive alternate text. Decorative elements can be ignored with an empty alt attribute. Learn more about the `alt` attribute.
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.
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.
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