Access hz.school51.com. 杭州无忧网 -校园无忧网 -【杭州兼职杭州校园兼职杭州蚂蚁兼职大学生兼职大学生交友大学生培训大学生活动】

name

value

score

weighting

FCP (First Contentful Paint)

Value2.3 s

75/100

10%

LCP (Largest Contentful Paint)

Value2.8 s

82/100

25%

SI (Speed Index)

Value8.3 s

19/100

10%

TBT (Total Blocking Time)

Value240 ms

86/100

30%

CLS (Cumulative Layout Shift)

Value0.012

100/100

15%

TTI (Time to Interactive)

Value5.2 s

74/100

10%

hz.school51.com

8638 ms

public.css

4141 ms

jquery.js

3929 ms

lhgdialog.js

3264 ms

S.js

2005 ms

Our browser made a total of 131 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Hz.school51.com, 43% (56 requests) were made to Img100.school51.com and 21% (28 requests) were made to Img200.school51.com. The less responsive or slowest element that took the longest time to load (20.1 sec) relates to the external source Img200.school51.com.

Content Size

1.5 MB

After Optimization

1.1 MB

In fact, the total size of Hz.school51.com main page is 1.5 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 1.0 MB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 112.8 kB

Original 138.7 kB
After minification 134.4 kB
After compression 25.9 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 112.8 kB or 81% of the original size.

Image Optimization

-8%

Potential reduce by 85.3 kB

Original 1.0 MB
After minification 944.6 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. Hz School 51 images are well optimized though.

JavaScript Optimization

-56%

Potential reduce by 181.9 kB

Original 327.5 kB
After minification 327.5 kB
After compression 145.6 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 181.9 kB or 56% of the original size.

CSS Optimization

-51%

Potential reduce by 12.8 kB

Original 24.9 kB
After minification 24.9 kB
After compression 12.1 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. Hz.school51.com needs all CSS files to be minified and compressed as it can save up to 12.8 kB or 51% of the original size.

Requests Now

127

After Optimization

100

The browser has sent 127 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Hz School 51. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 14 to 1 for JavaScripts and from 4 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 semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.

High

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

High

Image elements do not have [alt] attributes

High

Form elements do not have associated labels

High

Links do not have a discernible name

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

High

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

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

UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Hz.school51.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 Hz.school51.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

hz.school51.com

Open Graph description is not detected on the main page of Hz School 51. 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

杭州无忧网 -校园无忧网 -【杭州兼职 杭州校园兼职 杭州蚂蚁兼职 大学生兼职 大学生交友 大学生培训 大学生活动】

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

hz.school51.com

public.css

jquery.js

lhgdialog.js

S.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

hz.school51.com

public.css

jquery.js

lhgdialog.js

S.js

m.js

index.css

jquery.kinMaxShow.js

default.css

new_app.jpg

55508213e11a1.jpg

no_picture.jpg

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cover_5603cdf2edd49.jpg

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index_bg.jpg

public.gif

ks.jpg

hot.gif

bk.jpg

thumb_57060945d2e54.jpg

thumb_5706094439060.jpg

thumb_57060942766ce.jpg

thumb_56d966be0bbaa.png

杭州无忧网 -校园无忧网 -【杭州兼职杭州校园兼职杭州蚂蚁兼职大学生兼职大学生交友大学生培训大学生活动】