Access tj.aoshu.com. 天津奥数网_天津小学语数英、家庭教育专业网站

name

value

score

weighting

FCP (First Contentful Paint)

Value5.4 s

6/100

10%

LCP (Largest Contentful Paint)

Value8.1 s

2/100

25%

SI (Speed Index)

Value9.6 s

11/100

10%

TBT (Total Blocking Time)

Value340 ms

74/100

30%

CLS (Cumulative Layout Shift)

Value0.45

20/100

15%

TTI (Time to Interactive)

Value10.7 s

22/100

10%

tj.aoshu.com

2254 ms

base.css

3507 ms

index2013.css

3491 ms

jQuery.js

7664 ms

common.js

5943 ms

Our browser made a total of 122 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Tj.aoshu.com, 30% (36 requests) were made to Img.eduuu.com and 20% (25 requests) were made to Files.eduuu.com. The less responsive or slowest element that took the longest time to load (20.4 sec) relates to the external source Files.eduuu.com.

Content Size

1.2 MB

After Optimization

615.9 kB

In fact, the total size of Tj.aoshu.com main page is 1.2 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. Images take 468.3 kB which makes up the majority of the site volume.

HTML Optimization

-86%

Potential reduce by 207.0 kB

Original 239.7 kB
After minification 195.7 kB
After compression 32.7 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 44.0 kB, which is 18% 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 207.0 kB or 86% of the original size.

Image Optimization

-10%

Potential reduce by 45.2 kB

Original 468.3 kB
After minification 423.1 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. Tj Aoshu images are well optimized though.

JavaScript Optimization

-66%

Potential reduce by 266.7 kB

Original 405.7 kB
After minification 395.3 kB
After compression 139.1 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 266.7 kB or 66% of the original size.

CSS Optimization

-76%

Potential reduce by 65.0 kB

Original 86.0 kB
After minification 76.8 kB
After compression 21.0 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. Tj.aoshu.com needs all CSS files to be minified and compressed as it can save up to 65.0 kB or 76% of the original size.

Requests Now

112

After Optimization

The browser has sent 112 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Tj Aoshu. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 37 to 1 for JavaScripts and from 7 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

Links do not have a discernible name

These are opportunities to improve keyboard navigation in your application.

High

Heading elements are not in a sequentially-descending order

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

Low

Detected JavaScript libraries

High

Page has valid source maps

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

GB2312

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

tj.aoshu.com

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

天津奥数网_天津小学语数英、家庭教育专业网站

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

tj.aoshu.com

base.css

index2013.css

jQuery.js

common.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

tj.aoshu.com

base.css

index2013.css

jQuery.js

common.js

logs.js

m.js

docapi.min.js

subcity.js

nav_jump_as2013.css

topMenu.js

s

asMenu.js

s

s

s

s

s

s

s

s

s

s

zk_marquee_ms.js

public_index_zkservice.js

public_index_service.js

ggc.js

js_2013bj_index.js

js_index_jx.js

s

chkLogin.js

logo.gif

155717_5457355dc5e1b.jpg

143356_5018cdd480c80.jpg

143552_5018ce48c8478.jpg

144157_5018cfb5e1ea3.jpg

103148_4e6829141defd.jpg

145014_5018d1a667e05.jpg

150101_5018d42d14729.jpg

172831_4d6b6abfad7a9.jpg

201111_4d1f19df78ef0.jpg

174358_4e673cde3f8ca.jpg

173457_4e56174118cf0.jpg