Report Summary

  • 0

    Performance

  • 45

    Accessibility

    Visual factors better than
    that of 19% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 92

    SEO

    Google-friendlier than
    75% of websites

zf300.cn

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Page Load Speed

10.6 sec in total

First Response

1.2 sec

Resources Loaded

9.3 sec

Page Rendered

104 ms

zf300.cn screenshot

About Website

Click here to check amazing Zf 300 content. Otherwise, check out these important facts you probably never knew about zf300.cn

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Visit zf300.cn

Key Findings

We analyzed Zf300.cn page load time and found that the first response time was 1.2 sec and then it took 9.4 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

zf300.cn performance score

0

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.3 s

7/100

10%

LCP (Largest Contentful Paint)

Value0

0/100

25%

SI (Speed Index)

Value0

0/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value5.3 s

72/100

10%

Network Requests Diagram

zf300.cn

1211 ms

www.zf300.cn

1258 ms

page.css

67 ms

index.js

152 ms

z_stat.php

1800 ms

Our browser made a total of 12 requests to load all elements on the main page. We found that 50% of them (6 requests) were addressed to the original Zf300.cn, 8% (1 request) were made to S95.cnzz.com and 8% (1 request) were made to Img1.tbcdn.cn. The less responsive or slowest element that took the longest time to load (2.1 sec) relates to the external source C.cnzz.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 29.0 kB (57%)

Content Size

51.2 kB

After Optimization

22.3 kB

In fact, the total size of Zf300.cn main page is 51.2 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. Only 10% of websites need less resources to load. CSS take 17.0 kB which makes up the majority of the site volume.

HTML Optimization

-67%

Potential reduce by 8.7 kB

  • Original 12.9 kB
  • After minification 12.6 kB
  • After compression 4.2 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 8.7 kB or 67% of the original size.

Image Optimization

-0%

Potential reduce by 2 B

  • Original 10.6 kB
  • After minification 10.6 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. Zf 300 images are well optimized though.

JavaScript Optimization

-64%

Potential reduce by 6.9 kB

  • Original 10.7 kB
  • After minification 10.7 kB
  • After compression 3.8 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 6.9 kB or 64% of the original size.

CSS Optimization

-79%

Potential reduce by 13.4 kB

  • Original 17.0 kB
  • After minification 15.0 kB
  • After compression 3.6 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. Zf300.cn needs all CSS files to be minified and compressed as it can save up to 13.4 kB or 79% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

8

After Optimization

8

The browser has sent 8 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Zf 300. According to our analytics all requests are already optimized.

Accessibility Review

zf300.cn accessibility score

45

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

<frame> or <iframe> elements do not have a title

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

zf300.cn best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

High

Browser errors were logged to the console

SEO Factors

zf300.cn SEO score

92

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

robots.txt is not valid

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 Zf300.cn 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 Zf300.cn 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 Zf 300. 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: