Access zsitw.com. 中山网站建设|中山网站制作|中山网页设计|中山网络公司|中山外贸网站制作|中山微官网|中山网站优化|中山SEO

name

value

score

weighting

FCP (First Contentful Paint)

Value4.0 s

22/100

10%

LCP (Largest Contentful Paint)

Value7.8 s

3/100

25%

SI (Speed Index)

Value14.6 s

1/100

10%

TBT (Total Blocking Time)

Value90 ms

99/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value8.4 s

39/100

10%

zsitw.com

705 ms

zsitw.com

977 ms

news.css

241 ms

bootstrap.min.css

483 ms

style.css

700 ms

Our browser made a total of 61 requests to load all elements on the main page. We found that 75% of them (46 requests) were addressed to the original Zsitw.com, 16% (10 requests) were made to Bdimg.share.baidu.com and 3% (2 requests) were made to Hm.baidu.com. The less responsive or slowest element that took the longest time to load (8.3 sec) belongs to the original domain Zsitw.com.

Content Size

2.4 MB

After Optimization

2.2 MB

In fact, the total size of Zsitw.com main page is 2.4 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 2.2 MB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 25.9 kB

Original 33.4 kB
After minification 28.3 kB
After compression 7.5 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. This page needs HTML code to be minified as it can gain 5.1 kB, which is 15% 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 25.9 kB or 77% of the original size.

Image Optimization

-5%

Potential reduce by 106.9 kB

Original 2.2 MB
After minification 2.1 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. Zsitw images are well optimized though.

JavaScript Optimization

-23%

Potential reduce by 29.9 kB

Original 128.8 kB
After minification 126.7 kB
After compression 98.9 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 29.9 kB or 23% of the original size.

CSS Optimization

-23%

Potential reduce by 10.6 kB

Original 47.0 kB
After minification 47.0 kB
After compression 36.4 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. Zsitw.com needs all CSS files to be minified and compressed as it can save up to 10.6 kB or 23% of the original size.

Requests Now

After Optimization

The browser has sent 59 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Zsitw. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 16 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

These are opportunities to improve the legibility of your content.

High

Background and foreground colors do not have a sufficient contrast ratio.

These are opportunities to improve the interpretation of your content by users in different locales.

High

<html> element does not have a [lang] attribute

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.

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Areas of Improvement

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

High

Displays images with incorrect aspect ratio

High

Serves images with low resolution

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Issues were logged in the Issues panel in Chrome Devtools

Search Engine Optimization Advices

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

High

Links are not crawlable

High

robots.txt is not valid

Format your HTML in a way that enables crawlers to better understand your app’s content.

High

Image elements do not have [alt] attributes

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/).

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 Zsitw.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 Zsitw.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

zsitw.com

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

Report Summary

Performance

Accessibility

Best Practices

SEO

中山网站建设|中山网站制作|中山网页设计|中山网络公司|中山外贸网站制作|中山微官网|中山网站优化|中山SEO - 中山爱途网络科技有限公司

Page Load Speed

First Response

Resources Loaded

Page Rendered

About Website

Key Findings

Performance Metrics

Measured Metrics

FCP (First Contentful Paint)

LCP (Largest Contentful Paint)

SI (Speed Index)

TBT (Total Blocking Time)

CLS (Cumulative Layout Shift)

TTI (Time to Interactive)

Network Requests Diagram

zsitw.com

zsitw.com

news.css

bootstrap.min.css

style.css

Page Optimization Overview & Recommendations

Content Size

After Optimization

HTML Optimization

Image Optimization

JavaScript Optimization

CSS Optimization

Requests Breakdown

Requests Now

After Optimization

Network Requests Diagram

zsitw.com

zsitw.com

news.css

bootstrap.min.css

style.css

responsive.css

jquery.min.js

bootstrap.min.js

jquery.sidr.min.js

jquery.iosslider.min.js

17142004.js

jquery.scrollUp.min.js

script.js

itwkefu.css

hamburger.gif

logo.jpg

qq.jpg

1592370178.jpg

1443205972.jpg

1592376875.jpg

1592374622.jpg

1592367985.jpg

browse-title.png

debut_dark.gif

1648119157.jpg

1599203055.jpg

1599185683.jpg

1599128828.jpg

debut_blue.gif

1599113965.jpg

1599107868.jpg

1599110208.jpg

1599102800.jpg

1578711594.jpg

1569645797.jpg

qr.jpg

2.jpg

3.jpg

1.jpg

5.jpg

6.jpg

7.jpg

8.jpg