Report Summary

  • 29

    Performance

    Renders faster than
    49% of other websites

  • 76

    Accessibility

    Visual factors better than
    that of 42% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 82

    SEO

    Google-friendlier than
    44% of websites

dhtest.com

东华测试_无线测试仪,模态试验,三轴加速度传感器,应变测试仪,振动测试系统,测量仪器,智能控制,测量仪器,自动控制,振动加速度传感器

Page Load Speed

11.4 sec in total

First Response

2.5 sec

Resources Loaded

7.8 sec

Page Rendered

1.2 sec

dhtest.com screenshot

About Website

Click here to check amazing Dhtest content. Otherwise, check out these important facts you probably never knew about dhtest.com

江苏东华测试技术股份有限公司是国家高新技术企业,专注于结构力学性能的智能化测试与分析系统研发和生产。

Visit dhtest.com

Key Findings

We analyzed Dhtest.com page load time and found that the first response time was 2.5 sec and then it took 9 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.

Performance Metrics

dhtest.com performance score

29

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.3 s

18/100

10%

LCP (Largest Contentful Paint)

Value11.9 s

0/100

25%

SI (Speed Index)

Value14.7 s

1/100

10%

TBT (Total Blocking Time)

Value480 ms

60/100

30%

CLS (Cumulative Layout Shift)

Value0.214

58/100

15%

TTI (Time to Interactive)

Value17.0 s

4/100

10%

Network Requests Diagram

www.dhtest.com

2451 ms

ceccbootstrap.min.css,global.css

422 ms

site.css

583 ms

Home_04748da776b1f329b2c834095e3aecfc.min.css

543 ms

ceccjquery.min.js,require.min.js,lib.min.js,page.min.js

427 ms

Our browser made a total of 68 requests to load all elements on the main page. We found that 28% of them (19 requests) were addressed to the original Dhtest.com, 56% (38 requests) were made to Omo-oss-image.thefastimg.com and 9% (6 requests) were made to Omo-oss-image1.thefastimg.com. The less responsive or slowest element that took the longest time to load (3.8 sec) relates to the external source Omo-oss-image.thefastimg.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 558.2 kB (13%)

Content Size

4.3 MB

After Optimization

3.8 MB

In fact, the total size of Dhtest.com main page is 4.3 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. 50% of websites need less resources to load. Images take 3.9 MB which makes up the majority of the site volume.

HTML Optimization

-93%

Potential reduce by 237.6 kB

  • Original 256.5 kB
  • After minification 195.5 kB
  • After compression 19.0 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 61.0 kB, which is 24% 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 237.6 kB or 93% of the original size.

Image Optimization

-6%

Potential reduce by 228.9 kB

  • Original 3.9 MB
  • After minification 3.7 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. Dhtest images are well optimized though.

JavaScript Optimization

-6%

Potential reduce by 519 B

  • Original 8.3 kB
  • After minification 8.3 kB
  • After compression 7.8 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. This website has mostly compressed JavaScripts.

CSS Optimization

-78%

Potential reduce by 91.2 kB

  • Original 117.5 kB
  • After minification 30.5 kB
  • After compression 26.3 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. Dhtest.com needs all CSS files to be minified and compressed as it can save up to 91.2 kB or 78% of the original size.

Requests Breakdown

Number of requests can be reduced by 14 (22%)

Requests Now

65

After Optimization

51

The browser has sent 65 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Dhtest. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 11 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

dhtest.com accessibility score

76

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

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

dhtest.com best practices score

67

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

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

dhtest.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 Dhtest.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 Dhtest.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 Dhtest. 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: