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name

value

score

weighting

FCP (First Contentful Paint)

Value3.3 s

39/100

10%

LCP (Largest Contentful Paint)

Value5.7 s

16/100

25%

SI (Speed Index)

Value8.6 s

17/100

10%

TBT (Total Blocking Time)

Value60 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value6.8 s

55/100

10%

hangzhou.zjol.com.cn

3118 ms

2012index.css

677 ms

adzjol.js

3005 ms

tab_Qfast.js

677 ms

tab_alljs.js

1354 ms

Our browser made a total of 135 requests to load all elements on the main page. We found that 53% of them (71 requests) were addressed to the original Hangzhou.zjol.com.cn, 39% (52 requests) were made to Img.zjolcdn.com and 4% (6 requests) were made to Mat1.gtimg.com. The less responsive or slowest element that took the longest time to load (20.3 sec) relates to the external source Img.zjolcdn.com.

Content Size

3.3 MB

After Optimization

2.9 MB

In fact, the total size of Hangzhou.zjol.com.cn main page is 3.3 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. 40% of websites need less resources to load. Images take 2.9 MB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 101.1 kB

Original 125.2 kB
After minification 117.8 kB
After compression 24.1 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 101.1 kB or 81% of the original size.

Image Optimization

-4%

Potential reduce by 112.7 kB

Original 2.9 MB
After minification 2.8 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. Hangzhou Zjol images are well optimized though.

JavaScript Optimization

-70%

Potential reduce by 199.2 kB

Original 284.8 kB
After minification 276.1 kB
After compression 85.7 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 199.2 kB or 70% of the original size.

CSS Optimization

-80%

Potential reduce by 18.7 kB

Original 23.5 kB
After minification 20.5 kB
After compression 4.8 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. Hangzhou.zjol.com.cn needs all CSS files to be minified and compressed as it can save up to 18.7 kB or 80% of the original size.

Requests Now

123

After Optimization

The browser has sent 123 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Hangzhou Zjol. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 20 to 1 for JavaScripts 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

Search Engine Optimization Advices

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

High

Links are not crawlable

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

High

Image elements do not have [alt] attributes

Language and Encoding

Language Detected

ZH
Language Claimed

N/A
Encoding

GB2312

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Hangzhou.zjol.com.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 Hangzhou.zjol.com.cn main page’s claimed encoding is gb2312. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

hangzhou.zjol.com.cn

Open Graph description is not detected on the main page of Hangzhou Zjol. 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

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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

hangzhou.zjol.com.cn

2012index.css

adzjol.js

tab_Qfast.js

tab_alljs.js

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

hangzhou.zjol.com.cn

2012index.css

adzjol.js

tab_Qfast.js

tab_alljs.js

jquery-1.4a2.min.js

jquery.KinSlideshow-1.2.1.min.js

Koala.min.1.3.3.js

Qfast1.0.1.js

2269.js

2502.js

2503.js

2504.js

2270.js

2271.js

tjBrowser.js

yu.js

tb.js

css.css

style.css

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