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aerospace.net.cn screenshot

Report Summary

  • 41

    Performance

    Renders faster than
    60% of other websites

  • 70

    Accessibility

    Visual factors better than
    that of 36% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 74

    SEO

    Google-friendlier than
    32% of websites

aerospace.net.cn

云南航天工程物探检测股份有限公司|云南航天检测|航天检测

Page Load Speed

39.7 sec in total

First Response

3.5 sec

Resources Loaded

36 sec

Page Rendered

181 ms

aerospace.net.cn screenshot

About Website

Welcome to aerospace.net.cn homepage info - get ready to check Aerospace best content right away, or after learning these important things about aerospace.net.cn

云南航天工程物探检测股份有限公司创立于 1999 年，前身为云南航天局下属的航天质量无损检测站，2015 年成为国内首家新三板挂牌的公路工程试验检测企业（股票代码 832007）。是集勘察、设计、检测、研发、咨询、信息化建设于一体的高新技术企业。近二十年，秉承“军民融合、创新驱动、人才强企、质量制胜”的航天基因及精神，公司在多领域实现了快速发展。

Visit aerospace.net.cn

Key Findings

We analyzed Aerospace.net.cn page load time and found that the first response time was 3.5 sec and then it took 36.2 sec to load all DOM resources and completely render a web page. This is an excellent result, as only a small number of websites can load faster. Unfortunately, there were 14 request timeouts, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

aerospace.net.cn performance score

41

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value17.6 s

0/100

10%

LCP (Largest Contentful Paint)

Value19.8 s

0/100

25%

SI (Speed Index)

Value20.2 s

0/100

10%

TBT (Total Blocking Time)

Value220 ms

87/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value30.4 s

0/100

10%

Network Requests Diagram

aerospace.net.cn

3538 ms

layout.css

5867 ms

jquery.1.4.2-min.js

13844 ms

common.js

7848 ms

ckplayer.js

5261 ms

Our browser made a total of 29 requests to load all elements on the main page. We found that all of those requests were addressed to Aerospace.net.cn and no external sources were called. The less responsive or slowest element that took the longest time to load (20.4 sec) belongs to the original domain Aerospace.net.cn.

Page Optimization Overview & Recommendations

Page size can be reduced by 162.3 kB (61%)

Content Size

268.1 kB

After Optimization

105.8 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Aerospace.net.cn main page is 268.1 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. Only 5% of websites need less resources to load. Javascripts take 135.7 kB which makes up the majority of the site volume.

HTML Optimization

-70%

Potential reduce by 7.8 kB

  • Original 11.1 kB
  • After minification 11.1 kB
  • After compression 3.3 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 7.8 kB or 70% of the original size.

Image Optimization

-40%

Potential reduce by 43.7 kB

  • Original 108.5 kB
  • After minification 64.8 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. Obviously, Aerospace needs image optimization as it can save up to 43.7 kB or 40% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-75%

Potential reduce by 101.1 kB

  • Original 135.7 kB
  • After minification 102.8 kB
  • After compression 34.6 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 101.1 kB or 75% of the original size.

CSS Optimization

-76%

Potential reduce by 9.7 kB

  • Original 12.8 kB
  • After minification 12.0 kB
  • After compression 3.1 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. Aerospace.net.cn needs all CSS files to be minified and compressed as it can save up to 9.7 kB or 76% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

14

After Optimization

14

  • Images
  • JavaScript
  • CSS

The browser has sent 14 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Aerospace. According to our analytics all requests are already optimized.

Network Requests Diagram

aerospace.net.cn

aerospace.net.cn

3538 ms

layout.css

layout.css

5867 ms

jquery.1.4.2-min.js

jquery.1.4.2-min.js

13844 ms

common.js

common.js

7848 ms

ckplayer.js

ckplayer.js

5261 ms

background.png

background.png

8368 ms

main.png

main.png

1231 ms

logo.png

logo.png

9441 ms

search.png

search.png

1159 ms

blank.png

blank.png

713 ms

banner.png

banner.png

1294 ms

bannerHomeHover.png

bannerHomeHover.png

1731 ms

bannerArrow.png

bannerArrow.png

1808 ms

1.jpg

1.jpg

20418 ms

11.jpg

11.jpg

20419 ms

12.jpg

12.jpg

20419 ms

176.jpg

176.jpg

20418 ms

175.jpg

175.jpg

12115 ms

174.jpg

174.jpg

15085 ms

6.jpg

6.jpg

20417 ms

5.jpg

5.jpg

20418 ms

4.jpg

4.jpg

20418 ms

player.png

player.png

20417 ms

icon1.png

icon1.png

20346 ms

indexArrowLeftEnd.png

indexArrowLeftEnd.png

20345 ms

indexArrowRight.png

indexArrowRight.png

20346 ms

icon2.png

icon2.png

20346 ms

linkBox.png

linkBox.png

20345 ms

footer.png

footer.png

20345 ms

Accessibility Review

aerospace.net.cn accessibility score

70

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.

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

<dl>'s do not contain only properly-ordered <dt> and <dd> groups, <script>, <template> or <div> elements.

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

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

High

Links do not have a discernible name

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

aerospace.net.cn best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

SEO Factors

aerospace.net.cn SEO score

74

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

High

robots.txt is not valid

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

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Aerospace.net.cn can be misinterpreted by Google and other search engines. Our service has detected that Chinese is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Aerospace.net.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

aerospace.net.cn

Open Graph description is not detected on the main page of Aerospace. Lack of Open Graph description can be counter-productive for their social media presence, as such a description allows converting a website homepage (or other pages) into good-looking, rich and well-structured posts, when it is being shared on Facebook and other social media. For example, adding the following code snippet into HTML <head> tag will help to represent this web page correctly in social networks: