Access shengwu.chazidian.com. 生物_高中生物_初中生物_初中生物知识点_试题_教案_课件

name

value

score

weighting

FCP (First Contentful Paint)

Value6.6 s

2/100

10%

LCP (Largest Contentful Paint)

Value8.9 s

1/100

25%

SI (Speed Index)

Value12.7 s

3/100

10%

TBT (Total Blocking Time)

Value200 ms

90/100

30%

CLS (Cumulative Layout Shift)

Value0.203

61/100

15%

TTI (Time to Interactive)

Value13.8 s

10/100

10%

shengwu.chazidian.com

9273 ms

uaredirect.js

1669 ms

css.css

267 ms

jquery-1.10.2.min.js

1429 ms

top.css

1358 ms

Our browser made a total of 101 requests to load all elements on the main page. We found that 19% of them (19 requests) were addressed to the original Shengwu.chazidian.com, 24% (24 requests) were made to Res.chazidian.com and 8% (8 requests) were made to Cpro.baidustatic.com. The less responsive or slowest element that took the longest time to load (20.1 sec) relates to the external source Imgs.zuowen.com.

Content Size

1.4 MB

After Optimization

661.6 kB

In fact, the total size of Shengwu.chazidian.com main page is 1.4 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. 45% of websites need less resources to load. Javascripts take 652.9 kB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 75.0 kB

Original 90.2 kB
After minification 71.1 kB
After compression 15.2 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. This page needs HTML code to be minified as it can gain 19.1 kB, which is 21% 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 75.0 kB or 83% of the original size.

Image Optimization

-35%

Potential reduce by 216.5 kB

Original 626.3 kB
After minification 409.8 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, Shengwu Chazidian needs image optimization as it can save up to 216.5 kB or 35% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-65%

Potential reduce by 426.5 kB

Original 652.9 kB
After minification 647.8 kB
After compression 226.3 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 426.5 kB or 65% of the original size.

CSS Optimization

-73%

Potential reduce by 27.5 kB

Original 37.7 kB
After minification 35.1 kB
After compression 10.2 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. Shengwu.chazidian.com needs all CSS files to be minified and compressed as it can save up to 27.5 kB or 73% of the original size.

Requests Now

After Optimization

The browser has sent 93 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Shengwu Chazidian. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 28 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 experience of reading tabular or list data using assistive technology, like a screen reader.

High

<dl>'s do not contain only properly-ordered <dt> and <dd> groups, <script>, <template> or <div> elements.

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

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

These items highlight common accessibility best practices.

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

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

Serves images with low resolution

Low

Detected JavaScript libraries

Search Engine Optimization Advices

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 Shengwu.chazidian.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 Shengwu.chazidian.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

shengwu.chazidian.com

Open Graph description is not detected on the main page of Shengwu Chazidian. 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

生物_高中生物_初中生物_初中生物知识点_试题_教案_课件 - 查字典生物网

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

shengwu.chazidian.com

uaredirect.js

css.css

jquery-1.10.2.min.js

top.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

shengwu.chazidian.com

uaredirect.js

css.css

jquery-1.10.2.min.js

top.css

czd_gg.js

headroom.js

top.js

bookmark.js

c.js

copyright.js

adv.js

noavatar_small.gif

lvs-icon1.jpg

20130506080605107.jpg

qq_login_green_2.gif

201301101225132.jpg

201302050853442.jpg

201303111114252.jpg

logo.jpg

topnav_icon.png

home_img2.gif

line.jpg

home_img4.jpg

home_img5.jpg

home_img6.jpg

vi.jpg

bgmenu.gif

all.png

0004.jpg

ccym

cmenu.gif

bg_subject.png

dian.jpg

column_tit.jpg

icon4.jpg

arrow.gif

number.png

ccym

ccym

home

copy01.jpg

fb.js