51lrjk.com Site Title
临汾联睿建设工程质量检测有限公司|工程质量检验检测|鉴定|评估
51lrjk.com Meta Description
临汾联睿建设工程质量检测有限公司成立于2013年12月17日，注册地位于山西省临汾市尧都区五一东路105号，法定代表人为孔繁勇。经营范围包括批发、零售：医疗器械经营、消杀用品、家用电器、电子产品、计算机软硬件、文体用品、办公用品、服装、家具、保洁用品、眼镜、通讯器材、电线电缆、电动工具、机电设备、照相器材、健身器材、音响设备、五金交电、仪器仪表、建筑材料、装潢材料、陶瓷制品、化工产品（不含易燃易爆品、危险化学品）、水处理设备、净水设备、日用百货、化妆品；服务：设计、制作、代理、发布广告。（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）
51lrjk.com Test Results
51lrjk.com Mobile Performance: 100/100
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 357 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.
Eliminate render-blocking resources
Potential savings of 100 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.
Serve static assets with an efficient cache policy
24 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
Properly size images
Potential savings of 434 KiB
Serve images that are appropriately-sized to save cellular data and improve load time. Learn how to size images.
Efficiently encode images
Potential savings of 74 KiB
Optimized images load faster and consume less cellular data. Learn how to efficiently encode images.
51lrjk.com Mobile SEO: 100/100
Quick overview:
51lrjk.com Mobile Best Practices: 79/100
Quick overview:
Trust and Safety
Does not use HTTPS
25 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.
51lrjk.com Mobile Accessibility: 79/100
Quick overview:
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.
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.
Image elements have `[alt]` attributes that are redundant text.
Informative elements should aim for short, descriptive alternative text. Alternative text that is exactly the same as the text adjacent to the link or image is potentially confusing for screen reader users, because the text will be read twice. Learn more about the `alt` attribute.
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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