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name

value

score

weighting

FCP (First Contentful Paint)

Value3.6 s

31/100

10%

LCP (Largest Contentful Paint)

Value4.5 s

36/100

25%

SI (Speed Index)

Value4.2 s

77/100

10%

TBT (Total Blocking Time)

Value110 ms

97/100

30%

CLS (Cumulative Layout Shift)

Value0.003

100/100

15%

TTI (Time to Interactive)

Value5.8 s

66/100

10%

caao.net

213 ms

caao.net

317 ms

font-awesome.min.css

303 ms

swiper.min.css

201 ms

style.css

201 ms

Our browser made a total of 132 requests to load all elements on the main page. We found that 98% of them (130 requests) were addressed to the original Caao.net, 2% (2 requests) were made to Hm.baidu.com. The less responsive or slowest element that took the longest time to load (3.7 sec) belongs to the original domain Caao.net.

Content Size

1.4 MB

After Optimization

1.2 MB

In fact, the total size of Caao.net 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. 60% of websites need less resources to load. Images take 1.2 MB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 153.9 kB

Original 182.2 kB
After minification 157.2 kB
After compression 28.3 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 25.0 kB, which is 14% 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 153.9 kB or 84% of the original size.

Image Optimization

-5%

Potential reduce by 54.4 kB

Original 1.2 MB
After minification 1.2 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. Caao images are well optimized though.

Requests Now

129

After Optimization

118

The browser has sent 129 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Caao. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 12 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

Links do not have a discernible name

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

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

Low

Detected JavaScript libraries

High

Page has valid source maps

Search Engine Optimization Advices

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

High

Links are not crawlable

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 Caao.net 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 Caao.net 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

caao.net

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

曹操读书网--中文TXT电子书导读免费下载资源聚合门户！

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

caao.net

caao.net

font-awesome.min.css

swiper.min.css

style.css

Page Optimization Overview & Recommendations

Content Size

After Optimization

HTML Optimization

Image Optimization

Requests Breakdown

Requests Now

After Optimization

Network Requests Diagram

caao.net

caao.net

font-awesome.min.css

swiper.min.css

style.css

jquery-2.2.4.min.js

loginjs.php

thea1.js

thea2.js

thea3.js

thea6.js

jquery.tabslet.min.js

common.js

ResizeSensor.min.js

theia-sticky-sidebar.min.js

infinitescroll.js

swiper.min.js

weixin-qrcode.jpg

logo.png

timthumb.php

timthumb.php

timthumb.php

timthumb.php

timthumb.php

timthumb.php

timthumb.php

timthumb.php

timthumb.php

timthumb.php

timthumb.php

timthumb.php

timthumb.php

timthumb.php

timthumb.php

timthumb.php

timthumb.php

timthumb.php

timthumb.php

timthumb.php

timthumb.php

timthumb.php

timthumb.php

timthumb.php

timthumb.php

timthumb.php