Report Summary

  • 44

    Performance

    Renders faster than
    63% of other websites

  • 43

    Accessibility

    Visual factors better than
    that of 19% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 82

    SEO

    Google-friendlier than
    44% of websites

hainan3d.com

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Page Load Speed

43.9 sec in total

First Response

4.5 sec

Resources Loaded

39 sec

Page Rendered

385 ms

hainan3d.com screenshot

About Website

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Key Findings

We analyzed Hainan3d.com page load time and found that the first response time was 4.5 sec and then it took 39.4 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

hainan3d.com performance score

44

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.1 s

47/100

10%

LCP (Largest Contentful Paint)

Value10.6 s

0/100

25%

SI (Speed Index)

Value5.5 s

54/100

10%

TBT (Total Blocking Time)

Value380 ms

70/100

30%

CLS (Cumulative Layout Shift)

Value0.122

84/100

15%

TTI (Time to Interactive)

Value38.2 s

0/100

10%

Network Requests Diagram

hainan3d.com

4507 ms

www.hainan3d.com

6824 ms

style.css

1451 ms

jquery.js

11055 ms

jquery-migrate.min.js

1684 ms

Our browser made a total of 80 requests to load all elements on the main page. We found that 64% of them (51 requests) were addressed to the original Hainan3d.com, 13% (10 requests) were made to Qiao.baidu.com and 5% (4 requests) were made to Lxbjs.baidu.com. The less responsive or slowest element that took the longest time to load (20.5 sec) belongs to the original domain Hainan3d.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 199.0 kB (50%)

Content Size

399.2 kB

After Optimization

200.3 kB

In fact, the total size of Hainan3d.com main page is 399.2 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. 20% of websites need less resources to load. Images take 159.2 kB which makes up the majority of the site volume.

HTML Optimization

-74%

Potential reduce by 24.2 kB

  • Original 32.7 kB
  • After minification 30.2 kB
  • After compression 8.5 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 24.2 kB or 74% of the original size.

Image Optimization

-17%

Potential reduce by 27.0 kB

  • Original 159.2 kB
  • After minification 132.1 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, Hainan 3 D needs image optimization as it can save up to 27.0 kB or 17% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-67%

Potential reduce by 99.5 kB

  • Original 149.3 kB
  • After minification 149.2 kB
  • After compression 49.8 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 99.5 kB or 67% of the original size.

CSS Optimization

-83%

Potential reduce by 48.3 kB

  • Original 58.1 kB
  • After minification 47.5 kB
  • After compression 9.9 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. Hainan3d.com needs all CSS files to be minified and compressed as it can save up to 48.3 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 28 (58%)

Requests Now

48

After Optimization

20

The browser has sent 48 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Hainan 3 D. 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 5 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

hainan3d.com accessibility score

43

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.

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

High

[lang] attributes do not have a valid value

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

hainan3d.com best practices score

67

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

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

hainan3d.com SEO score

82

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

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Hainan3d.com 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 Hainan3d.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

Open Graph description is not detected on the main page of Hainan 3 D. 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: