Tools & Wizards About Us
zthx.com screenshot

Report Summary

  • 41

    Performance

    Renders faster than
    60% of other websites

  • 46

    Accessibility

    Visual factors better than
    that of 20% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 81

    SEO

    Google-friendlier than
    43% of websites

zthx.com

首页_中泰化学

Page Load Speed

9.9 sec in total

First Response

798 ms

Resources Loaded

8.8 sec

Page Rendered

387 ms

zthx.com screenshot

About Website

Visit zthx.com now to see the best up-to-date Zthx content and also check out these interesting facts you probably never knew about zthx.com

中泰化学

Visit zthx.com

Key Findings

We analyzed Zthx.com page load time and found that the first response time was 798 ms and then it took 9.1 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

zthx.com performance score

41

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.6 s

63/100

10%

LCP (Largest Contentful Paint)

Value6.4 s

10/100

25%

SI (Speed Index)

Value9.7 s

11/100

10%

TBT (Total Blocking Time)

Value340 ms

75/100

30%

CLS (Cumulative Layout Shift)

Value0.293

41/100

15%

TTI (Time to Interactive)

Value11.1 s

20/100

10%

Network Requests Diagram

zthx.com

798 ms

animate.min.css

623 ms

common.css

885 ms

jquery.js

1193 ms

common.js

580 ms

Our browser made a total of 69 requests to load all elements on the main page. We found that all of those requests were addressed to Zthx.com and no external sources were called. The less responsive or slowest element that took the longest time to load (4.2 sec) belongs to the original domain Zthx.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 329.9 kB (15%)

Content Size

2.2 MB

After Optimization

1.9 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Zthx.com main page is 2.2 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. 45% of websites need less resources to load. Images take 1.8 MB which makes up the majority of the site volume.

HTML Optimization

-92%

Potential reduce by 96.8 kB

  • Original 105.2 kB
  • After minification 53.1 kB
  • After compression 8.4 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 52.1 kB, which is 50% 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 96.8 kB or 92% of the original size.

Image Optimization

-8%

Potential reduce by 136.8 kB

  • Original 1.8 MB
  • After minification 1.7 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. Zthx images are well optimized though.

JavaScript Optimization

-26%

Potential reduce by 62.4 kB

  • Original 238.6 kB
  • After minification 238.3 kB
  • After compression 176.2 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 62.4 kB or 26% of the original size.

CSS Optimization

-47%

Potential reduce by 33.8 kB

  • Original 72.1 kB
  • After minification 69.2 kB
  • After compression 38.3 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. Zthx.com needs all CSS files to be minified and compressed as it can save up to 33.8 kB or 47% of the original size.

Requests Breakdown

Number of requests can be reduced by 29 (43%)

Requests Now

68

After Optimization

39

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 68 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Zthx. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 24 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

zthx.com

zthx.com

798 ms

animate.min.css

animate.min.css

623 ms

common.css

common.css

885 ms

jquery.js

jquery.js

1193 ms

common.js

common.js

580 ms

ratio-img.js

ratio-img.js

579 ms

jquery.mCustomScrollbar.css

jquery.mCustomScrollbar.css

604 ms

jquery.mCustomScrollbar.concat.min.js

jquery.mCustomScrollbar.concat.min.js

1476 ms

wow.min.js

wow.min.js

867 ms

style.css

style.css

1527 ms

layer.js

layer.js

1205 ms

TDES.js

TDES.js

1161 ms

Validate.js

Validate.js

1448 ms

zh_CN.js

zh_CN.js

1446 ms

AjaxHandler_ZTHX.js

AjaxHandler_ZTHX.js

1486 ms

masterslider.main.css

masterslider.main.css

1774 ms

swiper-3.4.2.min.css

swiper-3.4.2.min.css

1743 ms

swiper-3.4.2.jquery.min.js

swiper-3.4.2.jquery.min.js

2314 ms

index.js

index.js

1762 ms

video_cont.js

video_cont.js

1772 ms

network.js

network.js

1816 ms

masterslider.min.js

masterslider.min.js

2651 ms

rf.reenoo.js

rf.reenoo.js

2051 ms

Default.js

Default.js

2058 ms

layer.css

layer.css

537 ms

logo.png

logo.png

292 ms

search.png

search.png

290 ms

close_btn.png

close_btn.png

286 ms

language.png

language.png

293 ms

search03.png

search03.png

1063 ms

20191228102700_6733.jpg

20191228102700_6733.jpg

1474 ms

bannner02.jpg

bannner02.jpg

3169 ms

20191228105857_9567.jpg

20191228105857_9567.jpg

3138 ms

20240407165307_8890_961x719.jpg

20240407165307_8890_961x719.jpg

1481 ms

gradual_bg.png

gradual_bg.png

838 ms

core_01.png

core_01.png

1124 ms

core_01_on.png

core_01_on.png

1345 ms

core_02.png

core_02.png

1410 ms

core_02_on.png

core_02_on.png

1629 ms

20191212130717_8389.jpg

20191212130717_8389.jpg

1978 ms

20191227113410_6052.jpg

20191227113410_6052.jpg

2327 ms

index_bg.jpg

index_bg.jpg

2345 ms

20200102164246_2605.jpg

20200102164246_2605.jpg

3029 ms

video_btn.png

video_btn.png

2264 ms

index_icon_01.png

index_icon_01.png

2549 ms

20191227130745_1060.png

20191227130745_1060.png

2615 ms

market_bg.jpg

market_bg.jpg

2926 ms

market_map03.png

market_map03.png

3118 ms

market_address.png

market_address.png

2901 ms

market_address_on.png

market_address_on.png

3188 ms

market_map02.png

market_map02.png

4077 ms

market_map01.png

market_map01.png

4161 ms

close.png

close.png

3405 ms

index_icon_02.png

index_icon_02.png

3430 ms

index_icon_03.png

index_icon_03.png

3453 ms

huizhang.png

huizhang.png

3473 ms

share_01.png

share_01.png

3694 ms

share_02.png

share_02.png

3718 ms

share_inc.js

share_inc.js

3682 ms

Default.aspx

Default.aspx

3693 ms

AjaxHandler_ZTHX.ashx

AjaxHandler_ZTHX.ashx

1304 ms

AjaxHandler_ZTHX.ashx

AjaxHandler_ZTHX.ashx

864 ms

share_api.js

share_api.js

290 ms

share_view.js

share_view.js

296 ms

banner_cicle.png

banner_cicle.png

286 ms

banner_cicle_on.png

banner_cicle_on.png

287 ms

tangram.js

tangram.js

1198 ms

api_base.js

api_base.js

290 ms

view_base.js

view_base.js

289 ms

Accessibility Review

zthx.com accessibility score

46

Accessibility Issues

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

Buttons do not have an accessible name

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

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.

High

Definition list items are not wrapped in <dl> elements

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

[id] attributes on active, focusable elements are not unique

High

Heading elements are not in a sequentially-descending order

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

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

zthx.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

SEO Factors

zthx.com SEO score

81

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 Zthx.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 Zthx.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

zthx.com

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