Tools & Wizards About Us
zt-corp.com screenshot

Report Summary

  • 71

    Performance

    Renders faster than
    81% of other websites

  • 42

    Accessibility

    Visual factors better than
    that of 19% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 50

    SEO

    Google-friendlier than
    19% of websites

zt-corp.com

Oil Pump Vane&Ring|Hydraulic Vane|Copressor Vane|China Vane Manufacturer or Supplier

Page Load Speed

2.2 sec in total

First Response

380 ms

Resources Loaded

1.7 sec

Page Rendered

172 ms

zt-corp.com screenshot

About Website

Click here to check amazing Zt Corp content. Otherwise, check out these important facts you probably never knew about zt-corp.com

ZT is a big China manufacturer group, specialized supplier of vane pump and special steel for automobiles, compressor, hydraulics and Marine industry; supply parts include Metal Vane and Cartridge kit...

Visit zt-corp.com

Key Findings

We analyzed Zt-corp.com page load time and found that the first response time was 380 ms and then it took 1.9 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 40% of websites can load faster.

Performance Metrics

zt-corp.com performance score

71

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.7 s

93/100

10%

LCP (Largest Contentful Paint)

Value6.2 s

11/100

25%

SI (Speed Index)

Value2.4 s

98/100

10%

TBT (Total Blocking Time)

Value40 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.193

64/100

15%

TTI (Time to Interactive)

Value2.2 s

99/100

10%

Network Requests Diagram

zt-corp.com

380 ms

style.css

67 ms

retina.css

129 ms

jquery-latest.js

320 ms

superslide.2.1.js

131 ms

Our browser made a total of 30 requests to load all elements on the main page. We found that all of those requests were addressed to Zt-corp.com and no external sources were called. The less responsive or slowest element that took the longest time to load (561 ms) belongs to the original domain Zt-corp.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.8 MB (92%)

Content Size

2.0 MB

After Optimization

158.6 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Zt-corp.com main page is 2.0 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. 25% of websites need less resources to load. Images take 1.8 MB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 28.8 kB

  • Original 34.3 kB
  • After minification 32.1 kB
  • After compression 5.5 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 28.8 kB or 84% of the original size.

Image Optimization

-95%

Potential reduce by 1.7 MB

  • Original 1.8 MB
  • After minification 98.9 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, Zt Corp needs image optimization as it can save up to 1.7 MB or 95% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-56%

Potential reduce by 57.5 kB

  • Original 103.2 kB
  • After minification 103.2 kB
  • After compression 45.7 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 57.5 kB or 56% of the original size.

CSS Optimization

-24%

Potential reduce by 2.6 kB

  • Original 11.0 kB
  • After minification 11.0 kB
  • After compression 8.4 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. Zt-corp.com needs all CSS files to be minified and compressed as it can save up to 2.6 kB or 24% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

28

After Optimization

28

  • Images
  • JavaScript
  • CSS

The browser has sent 28 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Zt Corp. According to our analytics all requests are already optimized.

Network Requests Diagram

zt-corp.com

zt-corp.com

380 ms

style.css

style.css

67 ms

retina.css

retina.css

129 ms

jquery-latest.js

jquery-latest.js

320 ms

superslide.2.1.js

superslide.2.1.js

131 ms

bg.jpg

bg.jpg

69 ms

topbg.gif

topbg.gif

71 ms

logo.png

logo.png

70 ms

201502029096029.png

201502029096029.png

440 ms

201501429346343.jpg

201501429346343.jpg

126 ms

201502723168771.jpg

201502723168771.jpg

127 ms

201501673438293.jpg

201501673438293.jpg

129 ms

201502137145812.jpg

201502137145812.jpg

128 ms

201502539960197.png

201502539960197.png

526 ms

201502029638639.jpg

201502029638639.jpg

189 ms

201502214755644.jpg

201502214755644.jpg

190 ms

201502019395919.jpg

201502019395919.jpg

191 ms

201502233205177.jpg

201502233205177.jpg

191 ms

201502940696791.png

201502940696791.png

561 ms

201502294651237.jpg

201502294651237.jpg

252 ms

201502180813542.jpg

201502180813542.jpg

253 ms

201502424499285.jpg

201502424499285.jpg

254 ms

201503591462513.jpg

201503591462513.jpg

316 ms

201601977438644.jpg

201601977438644.jpg

317 ms

201601470277825.jpg

201601470277825.jpg

317 ms

201601678930472.jpg

201601678930472.jpg

441 ms

201601298691970.jpg

201601298691970.jpg

379 ms

searchbg.gif

searchbg.gif

364 ms

zuoyouqiehuan.gif

zuoyouqiehuan.gif

427 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

491 ms

Accessibility Review

zt-corp.com accessibility score

42

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

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

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

Form elements do not have associated labels

High

Links do not have a discernible name

Best Practices

zt-corp.com best practices score

58

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

zt-corp.com SEO score

50

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

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Zt-corp.com can be misinterpreted by Google and other search engines. Our service has detected that English 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 Zt-corp.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

zt-corp.com

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