Report Summary

  • 35

    Performance

    Renders faster than
    55% of other websites

  • 86

    Accessibility

    Visual factors better than
    that of 62% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 84

    SEO

    Google-friendlier than
    53% of websites

leadingtec.cn

首页 | 上海光语生物科技有限公司

Page Load Speed

50.2 sec in total

First Response

2.1 sec

Resources Loaded

47.7 sec

Page Rendered

341 ms

leadingtec.cn screenshot

About Website

Visit leadingtec.cn now to see the best up-to-date Leadingtec content and also check out these interesting facts you probably never knew about leadingtec.cn

做藻,我们是认真的! "It's not love or money that makes the world

Visit leadingtec.cn

Key Findings

We analyzed Leadingtec.cn page load time and found that the first response time was 2.1 sec and then it took 48 sec to load all DOM resources and completely render a web page. This is a poor result, as 95% of websites can load faster. Unfortunately, there were 29 request timeouts, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

leadingtec.cn performance score

35

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value9.5 s

0/100

10%

LCP (Largest Contentful Paint)

Value13.7 s

0/100

25%

SI (Speed Index)

Value28.2 s

0/100

10%

TBT (Total Blocking Time)

Value360 ms

72/100

30%

CLS (Cumulative Layout Shift)

Value0.097

90/100

15%

TTI (Time to Interactive)

Value30.1 s

0/100

10%

Network Requests Diagram

www.leadingtec.cn

2120 ms

lightapp.js

1265 ms

jquery.reject.css

1102 ms

framework.css

3306 ms

framework_responsive.css

1035 ms

Our browser made a total of 74 requests to load all elements on the main page. We found that 80% of them (59 requests) were addressed to the original Leadingtec.cn, 5% (4 requests) were made to Apps.bdimg.com and 4% (3 requests) were made to R.qiao.baidu.com. The less responsive or slowest element that took the longest time to load (20.4 sec) relates to the external source Apps.bdimg.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 399.0 kB (67%)

Content Size

596.5 kB

After Optimization

197.4 kB

In fact, the total size of Leadingtec.cn main page is 596.5 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 25% of websites need less resources to load. Javascripts take 291.0 kB which makes up the majority of the site volume.

HTML Optimization

-64%

Potential reduce by 97.3 kB

  • Original 153.2 kB
  • After minification 146.9 kB
  • After compression 55.9 kB

HTML content can be minified and compressed by a website’s server. The most efficient way is to compress content using GZIP which reduces data amount travelling through the network between server and browser. HTML code on this page is well minified. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 97.3 kB or 64% of the original size.

Image Optimization

-8%

Potential reduce by 2.0 kB

  • Original 25.2 kB
  • After minification 23.2 kB

Image size optimization can help to speed up a website loading time. The chart above shows the difference between the size before and after optimization. Leadingtec images are well optimized though.

JavaScript Optimization

-66%

Potential reduce by 193.2 kB

  • Original 291.0 kB
  • After minification 266.1 kB
  • After compression 97.8 kB

It’s better to minify JavaScript in order to improve website performance. The diagram shows the current total size of all JavaScript files against the prospective JavaScript size after its minification and compression. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 193.2 kB or 66% of the original size.

CSS Optimization

-84%

Potential reduce by 106.5 kB

  • Original 127.0 kB
  • After minification 103.9 kB
  • After compression 20.5 kB

CSS files minification is very important to reduce a web page rendering time. The faster CSS files can load, the earlier a page can be rendered. Leadingtec.cn needs all CSS files to be minified and compressed as it can save up to 106.5 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 34 (79%)

Requests Now

43

After Optimization

9

The browser has sent 43 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Leadingtec. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 27 to 1 for JavaScripts and from 9 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

leadingtec.cn accessibility score

86

Accessibility Issues

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

Background and foreground colors do not have a sufficient contrast ratio.

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.

Impact

Issue

High

Image elements do not have [alt] attributes

Best Practices

leadingtec.cn best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

leadingtec.cn SEO score

84

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Links are not crawlable

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Image elements do not have [alt] attributes

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 more](https://developers.google.com/search/mobile-sites/).

Impact

Issue

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    ZH

  • Language Claimed

    ZH

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Leadingtec.cn can be misinterpreted by Google and other search engines. Our service has detected that Chinese is used on the page, and it matches the claimed language. Our system also found out that Leadingtec.cn main page’s claimed encoding is utf-8. Use of this encoding format is the best practice as the main page visitors from all over the world won’t have any issues with symbol transcription.

Social Sharing Optimization

Open Graph data is detected on the main page of Leadingtec. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: