Tools & Wizards About Us
zzstny.com screenshot

Report Summary

  • 25

    Performance

    Renders faster than
    44% of other websites

  • 38

    Accessibility

    Visual factors better than
    that of 19% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

zzstny.com

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Page Load Speed

11.7 sec in total

First Response

4.7 sec

Resources Loaded

6.8 sec

Page Rendered

136 ms

zzstny.com screenshot

About Website

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

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Visit zzstny.com

Key Findings

We analyzed Zzstny.com page load time and found that the first response time was 4.7 sec and then it took 7 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.

Performance Metrics

zzstny.com performance score

25

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.9 s

4/100

10%

LCP (Largest Contentful Paint)

Value15.6 s

0/100

25%

SI (Speed Index)

Value12.5 s

3/100

10%

TBT (Total Blocking Time)

Value920 ms

30/100

30%

CLS (Cumulative Layout Shift)

Value0.043

99/100

15%

TTI (Time to Interactive)

Value22.5 s

1/100

10%

Network Requests Diagram

zzstny.com

4746 ms

css.css

349 ms

jquery-1.4a2.min.js

1485 ms

jquery.KinSlideshow-1.2.1.min.js

587 ms

logo.png

692 ms

Our browser made a total of 17 requests to load all elements on the main page. We found that all of those requests were addressed to Zzstny.com and no external sources were called. The less responsive or slowest element that took the longest time to load (4.7 sec) belongs to the original domain Zzstny.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 28.9 kB (41%)

Content Size

70.7 kB

After Optimization

41.8 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Zzstny.com main page is 70.7 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. Only 5% of websites need less resources to load. Images take 41.7 kB which makes up the majority of the site volume.

HTML Optimization

-70%

Potential reduce by 6.2 kB

  • Original 8.9 kB
  • After minification 7.5 kB
  • After compression 2.7 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 1.5 kB, which is 16% 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 6.2 kB or 70% of the original size.

Image Optimization

-17%

Potential reduce by 7.2 kB

  • Original 41.7 kB
  • After minification 34.5 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, Zzstny needs image optimization as it can save up to 7.2 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

-74%

Potential reduce by 7.1 kB

  • Original 9.7 kB
  • After minification 8.1 kB
  • After compression 2.5 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 7.1 kB or 74% of the original size.

CSS Optimization

-81%

Potential reduce by 8.4 kB

  • Original 10.4 kB
  • After minification 8.2 kB
  • After compression 2.0 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. Zzstny.com needs all CSS files to be minified and compressed as it can save up to 8.4 kB or 81% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

16

After Optimization

16

  • Images
  • JavaScript
  • CSS

The browser has sent 16 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Zzstny. According to our analytics all requests are already optimized.

Network Requests Diagram

zzstny.com

zzstny.com

4746 ms

css.css

css.css

349 ms

jquery-1.4a2.min.js

jquery-1.4a2.min.js

1485 ms

jquery.KinSlideshow-1.2.1.min.js

jquery.KinSlideshow-1.2.1.min.js

587 ms

logo.png

logo.png

692 ms

tel.png

tel.png

352 ms

gs.jpg

gs.jpg

844 ms

ico.gif

ico.gif

594 ms

tj.jpg

tj.jpg

892 ms

cd.jpg

cd.jpg

1052 ms

njl.jpg

njl.jpg

1197 ms

lx.jpg

lx.jpg

1726 ms

head_bg.jpg

head_bg.jpg

334 ms

menu.gif

menu.gif

304 ms

fw.gif

fw.gif

297 ms

in_2.gif

in_2.gif

295 ms

bottom.gif

bottom.gif

306 ms

Accessibility Review

zzstny.com accessibility score

38

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.

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

High

Links do not have a discernible name

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

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

List items (<li>) are not contained within <ul> or <ol> parent elements.

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

zzstny.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

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

SEO Factors

zzstny.com SEO score

83

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

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

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 Zzstny.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 Zzstny.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

zzstny.com

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