Lianyuanyitong.com Site Title

上海网站优化、上海网站设计、上海莲元易通信息科技有限公司

Lianyuanyitong.com Meta Description

上海莲元易通信息科技有限公司成立于2018年01月10日,注册地位于上海市青浦区徐泾镇联民路1881号10幢6层B区608室,法定代表人为卞强。经营范围包括一般项目:技术服务、技术开发、技术咨询、技术交流、技术转让、技术推广;信息咨询服务(不含许可类信息咨询服务);信息系统运行维护服务;数据处理和存储支持服务;数字内容制作服务(不含出版发行);信息系统集成服务;普通货物仓储服务(不含危险化学品等需许可审批的项目);会议及展览服务;广告设计、制作;广告代理;广告发布;互联网销售(除销售需要许可的商品);食用农产品批发;销售金属材料、化工产品(不含许可类化工产品)、电子产品、通信设备、计算机软件及辅助设备。(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)许可项目:货物进出口;技术进出口;第二类增值电信业务。(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,具体经营项目以相关部门批准文件或许可证件为准)上海莲元易通信息科技有限公司对外投资1家公司。

Lianyuanyitong.com Test Results

Lianyuanyitong.com Mobile Performance: 71/100
Quick overview:
First Meaningful Paint
3.7 s
First Meaningful Paint measures when the primary content of a page is visible. Learn more about the First Meaningful Paint metric.
Time to Interactive
3.7 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.
Tasks
Lists the toplevel main thread tasks that executed during page load.
Final Screenshot
The last screenshot captured of the pageload.

719594265078

Script Treemap Data
Used for treemap app
Diagnostics
Collection of useful page vitals.
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.
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.
Metrics
Collects all available metrics.

Lianyuanyitong.com Mobile SEO: 96/100
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
60% 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.

Lianyuanyitong.com Mobile Best Practices: 77/100
Quick overview:
General
Detected JavaScript libraries
All front-end JavaScript libraries detected on the page. Learn more about this JavaScript library detection diagnostic audit.
Trust and Safety
Does not use HTTPS
30 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
Lianyuanyitong.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
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.
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.
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.
Lianyuanyitong.com Mobile Accessibility: 71/100
Quick overview:
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.
Document has a main landmark.
One main landmark helps screen reader users navigate a web page. Learn more about landmarks.
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.
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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