Duntai.top Site Title
秦皇岛顿泰科技有限公司
Duntai.top Meta Description
秦皇岛顿泰科技有限公司成立于2020年03月日，注册地位于河北省秦皇岛市海港区北江东路长丰大厦1008南半间，法定代表人为柏雄鑫，经营范围包括电子产品、计算机软件的技术开发、技术咨询、技术服务；计算机网络工程技术服务；设计、制作、代理、发布国内各类广告（不含广告喷绘、写真）；文体活动策划；建材、日用品、电子产品、食用农产品、通讯终端设备、五金产品、文具用品、体育用品、计算机软件及辅助设备、首饰、家用电器、家具、针纺织品、服装、鞋帽、化妆品、厨房及卫生间用具、工艺品、钟表、眼镜、玩具、金属制品、塑料制品的销售；按协议代理中国移动、中国联通、中国电信通信业务；电脑图文设计**（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）
Duntai.top Test Results
Duntai.top Mobile Performance: 93/100
Quick overview:
Final Screenshot
The last screenshot captured of the pageload.
2264700375028
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.
Script Treemap Data
Used for treemap app
Network Requests
Lists the network requests that were made during page load.
Server Backend Latencies
450 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.
Diagnostics
Collection of useful page vitals.
Tasks
Lists the toplevel main thread tasks that executed during page load.
Metrics
Collects all available metrics.
Duntai.top Mobile SEO: 98/100
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
81% 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.
Duntai.top Mobile Best Practices: 77/100
Quick overview:
Trust and Safety
Does not use HTTPS
8 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
Duntai.top Mobile PWA: 38/100
Quick overview:
PWA Optimized
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.
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
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.
Duntai.top Mobile Accessibility: 80/100
Quick overview:
Document has a main landmark.
One main landmark helps screen reader users navigate a web page. Learn more about landmarks.
Identical links have the same purpose.
Links with the same destination should have the same description, to help users understand the link's purpose and decide whether to follow it. Learn more about identical links.
Touch targets have sufficient size and spacing.
Touch targets with sufficient size and spacing help users who may have difficulty targeting small controls to activate the targets. Learn more about touch targets.
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.
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.
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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