Access mathschina.com. 数学中国网(MathsChina.com) -- 中学数学门户网站,少年智力开发报·数学专页旗下网站 >> 首页

name

value

score

weighting

FCP (First Contentful Paint)

Value3.2 s

43/100

10%

LCP (Largest Contentful Paint)

Value5.0 s

26/100

25%

SI (Speed Index)

Value7.5 s

27/100

10%

TBT (Total Blocking Time)

Value490 ms

59/100

30%

CLS (Cumulative Layout Shift)

Value0.095

91/100

15%

TTI (Time to Interactive)

Value7.6 s

47/100

10%

mathschina.com

987 ms

Index.html

1666 ms

mcSkin.css

1417 ms

mcBlue.css

970 ms

MSClass.js

1190 ms

Our browser made a total of 67 requests to load all elements on the main page. We found that 58% of them (39 requests) were addressed to the original Mathschina.com, 9% (6 requests) were made to Pagead2.googlesyndication.com and 9% (6 requests) were made to Googleads.g.doubleclick.net. The less responsive or slowest element that took the longest time to load (2.6 sec) belongs to the original domain Mathschina.com.

Content Size

383.0 kB

After Optimization

250.8 kB

In fact, the total size of Mathschina.com main page is 383.0 kB. 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. Images take 162.2 kB which makes up the majority of the site volume.

HTML Optimization

-86%

Potential reduce by 81.0 kB

Original 94.1 kB
After minification 90.6 kB
After compression 13.1 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 81.0 kB or 86% of the original size.

Image Optimization

-1%

Potential reduce by 1.3 kB

Original 162.2 kB
After minification 160.9 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. Maths China images are well optimized though.

JavaScript Optimization

-22%

Potential reduce by 19.7 kB

Original 89.6 kB
After minification 83.8 kB
After compression 70.0 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 19.7 kB or 22% of the original size.

CSS Optimization

-81%

Potential reduce by 30.2 kB

Original 37.1 kB
After minification 31.1 kB
After compression 6.9 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. Mathschina.com needs all CSS files to be minified and compressed as it can save up to 30.2 kB or 81% of the original size.

Requests Now

After Optimization

The browser has sent 63 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Maths China. 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 from 4 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

High

[aria-*] attributes do not match their roles

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

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

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

Areas of Improvement

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

High

Displays images with incorrect aspect ratio

High

Serves images with low resolution

High

Browser errors were logged to the console

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

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 Mathschina.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 Mathschina.com 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

mathschina.com

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

数学中国网(MathsChina.com) -- 中学数学门户网站,少年智力开发报·数学专页旗下网站 >> 首页

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

mathschina.com

Index.html

mcSkin.css

mcBlue.css

MSClass.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

mathschina.com

Index.html

mcSkin.css

mcBlue.css

MSClass.js

tangram.js

ikt.css

adsbygoogle.js

Nav.js

stat.php

UserLogin.asp

Article_elite5.gif

mini_bg.png

mini_icon.png

logo.gif

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ca-pub-2015435839306294.js

zrt_lookup.html

show_ads_impl.js

Blue_SearchBg.png

Blue_skin.png

blue_Nav_bg.png

blue_Nav_itemBg.png

blue_Nav_arrowBg.png

ibg.png

default.png

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2542.html

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