Access shiyanlou.com. 连接高校和企业

name

value

score

weighting

FCP (First Contentful Paint)

Value6.5 s

2/100

10%

LCP (Largest Contentful Paint)

Value62.1 s

0/100

25%

SI (Speed Index)

Value17.2 s

0/100

10%

TBT (Total Blocking Time)

Value3,620 ms

1/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value27.9 s

0/100

10%

shiyanlou.com

1772 ms

www.shiyanlou.com

8033 ms

styles1459996011.css

5703 ms

ncn1.jpg

5040 ms

daxue%E5%8D%8E%E4%B8%AD%E7%A7%91%E6%8A%80%E5%A4%A7%E5%AD%A6logo.jpg

4889 ms

Our browser made a total of 60 requests to load all elements on the main page. We found that 8% of them (5 requests) were addressed to the original Shiyanlou.com, 38% (23 requests) were made to Dn-syl-static.qbox.me and 35% (21 requests) were made to Dn-simplecloud.qbox.me. The less responsive or slowest element that took the longest time to load (19.7 sec) belongs to the original domain Shiyanlou.com.

Content Size

1.6 MB

After Optimization

1.2 MB

In fact, the total size of Shiyanlou.com main page is 1.6 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. 30% of websites need less resources to load. Images take 1.5 MB which makes up the majority of the site volume.

HTML Optimization

-86%

Potential reduce by 58.2 kB

Original 67.8 kB
After minification 52.0 kB
After compression 9.6 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 15.8 kB, which is 23% 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 58.2 kB or 86% of the original size.

Image Optimization

-25%

Potential reduce by 385.3 kB

Original 1.5 MB
After minification 1.1 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. Obviously, Shiyanlou needs image optimization as it can save up to 385.3 kB or 25% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-63%

Potential reduce by 8.0 kB

Original 12.8 kB
After minification 12.8 kB
After compression 4.8 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 8.0 kB or 63% of the original size.

Requests Now

After Optimization

The browser has sent 56 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Shiyanlou. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

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

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

High

Missing source maps for large first-party JavaScript

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

ZH
Encoding

UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Shiyanlou.com can be misinterpreted by Google and other search engines. Our service has detected that Chinese is used on the page, and it matches the claimed language. Our system also found out that Shiyanlou.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

shiyanlou.com

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

连接高校和企业 - 蓝桥云课

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

shiyanlou.com

www.shiyanlou.com

styles1459996011.css

ncn1.jpg

daxue%E5%8D%8E%E4%B8%AD%E7%A7%91%E6%8A%80%E5%A4%A7%E5%AD%A6logo.jpg

Page Optimization Overview & Recommendations

Content Size

After Optimization

HTML Optimization

Image Optimization

JavaScript Optimization

Requests Breakdown

Requests Now

After Optimization

Network Requests Diagram

shiyanlou.com

www.shiyanlou.com

styles1459996011.css

ncn1.jpg

daxue%E5%8D%8E%E4%B8%AD%E7%A7%91%E6%8A%80%E5%A4%A7%E5%AD%A6logo.jpg

require.js

logo-transparent.png

container-title-2.png

container-play.png

qqlogin.png

weibologin.png

weixinlogin.png

githublogin.png

introduceContainer1.png

introduceContainer2.png

introduceContainer3.png

introduceContainer4.png

train.png

organization.png

captcha.gif

ncn11.jpg

ncn23.jpg

ncn30.jpg

1459494255468.png

1459492968021.png

1459493073368.png

1459493144226.png

1460109510011.png

1438847472569.png

1441591121427.png

1441591158107.png

group-gravatarNTY0MzE5MDEyNzY2.png

community_11.jpg

community_148.jpg

gravatar8.jpg

gravatar33.jpg

gravatar6.jpg

gravatar1.jpg

gravatar25.jpg

gravatar12.jpg

daxue%E4%B8%AD%E5%9B%BD%E7%A7%91%E5%AD%A6%E6%8A%80%E6%9C%AF%E5%A4%A7%E5%AD%A6logo.jpg

daxue%E5%8C%97%E4%BA%AC%E9%82%AE%E7%94%B5%E5%A4%A7%E5%AD%A6logo.jpg

daxue%E8%A5%BF%E5%AE%89%E7%94%B5%E5%AD%90%E7%A7%91%E6%8A%80%E5%A4%A7%E5%AD%A6logo.jpg

daxue%E9%87%8D%E5%BA%86%E9%82%AE%E7%94%B5%E5%A4%A7%E5%AD%A6logo.jpg