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longwin.com screenshot

Report Summary

  • 19

    Performance

    Renders faster than
    36% of other websites

  • 78

    Accessibility

    Visual factors better than
    that of 45% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 69

    SEO

    Google-friendlier than
    28% of websites

longwin.com

瑞領科技

Page Load Speed

14.2 sec in total

First Response

1.2 sec

Resources Loaded

10.9 sec

Page Rendered

2.1 sec

longwin.com screenshot

About Website

Welcome to longwin.com homepage info - get ready to check Longwin best content right away, or after learning these important things about longwin.com

Long Win Science and Technology Corporation is devoted to fundamental and applied research of Thermal solution, Fluid mechanics and Material mechanics for world-wide research institues, universities, ...

Visit longwin.com

Key Findings

We analyzed Longwin.com page load time and found that the first response time was 1.2 sec and then it took 13 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.

Performance Metrics

longwin.com performance score

19

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value9.6 s

0/100

10%

LCP (Largest Contentful Paint)

Value19.3 s

0/100

25%

SI (Speed Index)

Value16.7 s

0/100

10%

TBT (Total Blocking Time)

Value960 ms

29/100

30%

CLS (Cumulative Layout Shift)

Value0.183

66/100

15%

TTI (Time to Interactive)

Value35.1 s

0/100

10%

Network Requests Diagram

longwin.com

1217 ms

css

43 ms

aos.css

593 ms

bootstrap.min.css

611 ms

bootstrap-icons.css

618 ms

Our browser made a total of 192 requests to load all elements on the main page. We found that 80% of them (154 requests) were addressed to the original Longwin.com, 8% (15 requests) were made to Fonts.gstatic.com and 3% (6 requests) were made to Youtube.com. The less responsive or slowest element that took the longest time to load (7.2 sec) belongs to the original domain Longwin.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 940.8 kB (3%)

Content Size

32.6 MB

After Optimization

31.6 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Longwin.com main page is 32.6 MB. 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 a small number of websites need less resources to load. Images take 31.8 MB which makes up the majority of the site volume.

HTML Optimization

-87%

Potential reduce by 213.1 kB

  • Original 246.3 kB
  • After minification 174.2 kB
  • After compression 33.2 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. This page needs HTML code to be minified as it can gain 72.2 kB, which is 29% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 213.1 kB or 87% of the original size.

Image Optimization

-2%

Potential reduce by 659.6 kB

  • Original 31.8 MB
  • After minification 31.1 MB

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. Longwin images are well optimized though.

JavaScript Optimization

-9%

Potential reduce by 35.3 kB

  • Original 384.0 kB
  • After minification 384.0 kB
  • After compression 348.7 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. This website has mostly compressed JavaScripts.

CSS Optimization

-19%

Potential reduce by 32.9 kB

  • Original 173.8 kB
  • After minification 173.8 kB
  • After compression 140.9 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. Longwin.com needs all CSS files to be minified and compressed as it can save up to 32.9 kB or 19% of the original size.

Requests Breakdown

Number of requests can be reduced by 27 (16%)

Requests Now

169

After Optimization

142

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 169 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Longwin. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 17 to 1 for JavaScripts and from 12 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

longwin.com

longwin.com

1217 ms

css

css

43 ms

aos.css

aos.css

593 ms

bootstrap.min.css

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611 ms

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id

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Create

Create

120 ms

js

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geometry.js

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85 ms

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Accessibility Review

longwin.com accessibility score

78

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

ARIA IDs are not unique

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

<frame> or <iframe> elements do not have a title

High

Image elements do not have [alt] attributes

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

Best Practices

longwin.com 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

Displays images with incorrect aspect ratio

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

longwin.com SEO score

69

Search Engine Optimization Advices

Content Best Practices

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

Impact

Issue

High

Links do not have descriptive text

High

Image elements do not have [alt] attributes

Crawling and Indexing

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

Impact

Issue

High

Links are not crawlable

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

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Longwin.com can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that Longwin.com 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

longwin.com

Open Graph description is not detected on the main page of Longwin. 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: