Yooosen.com Site Title

纯净水设备_矿泉水设备_软化水处理设备_山泉水设备_重庆瑶森水源环保设备有限公司

Yooosen.com Meta Description

重庆瑶森水源环保设备有限公司成立于2012年10月17日，注册地位于重庆市九龙坡区柳背桥路4号7幢6-1号，法定代表人为冯杰。经营范围包括计算机软硬件开发、销售、技术咨询及技术服务，销售电子产品（不含电子出版物）、通讯产品(不含卫星地面接收和发射设备)、办公用品及消耗材料，利用互联网销售预包装食品、散装食品、乳制品、图书、报刊（以上五项须经审批的经营项目，取得审批后方可从事经营）、蔬菜、水果、水产品、农副产品（国家有专项管理规定的除外）、日用百货、针纺织品、办公用品、服装、鞋帽化妆品、五金、交电、家用电器、电子产品（不含电子出版物）、通信设备及器材（不含卫星地面接收设备）、文化用品、体育用品及器材、珠宝首饰、工艺美术品（象牙及其制品除外）、钟表、眼镜、家具、花卉、照相器材、宠物用品，市场推广，设计、代理、发布招牌、字牌、灯箱、展示牌，霓虹灯、电子翻版装置、电子显示屏和车载广告，房屋销售，二手房经纪，房屋租赁（不含住宿），物业管理，票务代理，家政服务。（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）。

Yooosen.com Test Results

Yooosen.com Mobile Performance: 90/100
Quick overview:
First Meaningful Paint
2.6 s
First Meaningful Paint measures when the primary content of a page is visible. Learn more about the First Meaningful Paint metric.
Metrics
Collects all available metrics.
Server Backend Latencies
440 ms
Server latencies can impact web performance. If the server latency of an origin is high, it's an indication the server is overloaded or has poor backend performance. Learn more about server response time.
Final Screenshot
The last screenshot captured of the pageload.

489932885234

Script Treemap Data
Used for treemap app
Network Round Trip Times
0 ms
Network round trip times (RTT) have a large impact on performance. If the RTT to an origin is high, it's an indication that servers closer to the user could improve performance. Learn more about the Round Trip Time.
Network Requests
Lists the network requests that were made during page load.
Diagnostics
Collection of useful page vitals.
Tasks
Lists the toplevel main thread tasks that executed during page load.

Yooosen.com Mobile SEO: 99/100
Quick overview:
Mobile Friendly
Make sure your pages are mobile friendly so users don’t have to pinch or zoom in order to read the content pages. Learn how to make pages mobile-friendly.
Tap targets are not sized appropriately
94% appropriately sized tap targets
Interactive elements like buttons and links should be large enough (48x48px), or have enough space around them, to be easy enough to tap without overlapping onto other elements. Learn more about tap targets.

Yooosen.com Mobile Best Practices: 73/100
Quick overview:
User Experience
Serves images with low resolution
Image natural dimensions should be proportional to the display size and the pixel ratio to maximize image clarity. Learn how to provide responsive images.
Trust and Safety
Does not use HTTPS
17 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.
Ensure CSP is effective against XSS attacks
A strong Content Security Policy (CSP) significantly reduces the risk of cross-site scripting (XSS) attacks. Learn how to use a CSP to prevent XSS
Yooosen.com Mobile PWA: 38/100
Quick overview:
PWA Optimized
Manifest doesn't have a maskable icon
A maskable icon ensures that the image fills the entire shape without being letterboxed when installing the app on a device. Learn about maskable manifest icons. No manifest was fetched
Does not set a theme color for the address bar.
The browser address bar can be themed to match your site. Learn more about theming the address bar. Failures: No manifest was fetched, No `<meta name="theme-color">` tag found.
Is not configured for a custom splash screen
A themed splash screen ensures a high-quality experience when users launch your app from their homescreens. Learn more about splash screens. Failures: No manifest was fetched.
Installable
Web app manifest or service worker do not meet the installability requirements
1 reason
Service worker is the technology that enables your app to use many Progressive Web App features, such as offline, add to homescreen, and push notifications. With proper service worker and manifest implementations, browsers can proactively prompt users to add your app to their homescreen, which can lead to higher engagement. Learn more about manifest installability requirements.
Yooosen.com Mobile Accessibility: 76/100
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.
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.
Navigation
These are opportunities to improve keyboard navigation in your application.
The page contains a heading, skip link, or landmark region
Adding ways to bypass repetitive content lets keyboard users navigate the page more efficiently. Learn more about bypass blocks.
Document has a main landmark.
One main landmark helps screen reader users navigate a web page. Learn more about landmarks.
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.
Links rely on color to be distinguishable.
Low-contrast text is difficult or impossible for many users to read. Link text that is discernible improves the experience for users with low vision. Learn how to make links distinguishable.
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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