Report Summary

  • 52

    Performance

    Renders faster than
    70% of other websites

  • 59

    Accessibility

    Visual factors better than
    that of 26% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 67

    SEO

    Google-friendlier than
    25% of websites

jianpu.cn

歌谱简谱网

Page Load Speed

19.5 sec in total

First Response

2.1 sec

Resources Loaded

17.1 sec

Page Rendered

341 ms

jianpu.cn screenshot

About Website

Visit jianpu.cn now to see the best up-to-date Jianpu content for China and also check out these interesting facts you probably never knew about jianpu.cn

这是免费的歌谱简谱交流平台。数万首热门歌曲,经典的歌谱简谱五线谱让你随意浏览。

Visit jianpu.cn

Key Findings

We analyzed Jianpu.cn page load time and found that the first response time was 2.1 sec and then it took 17.4 sec to load all DOM resources and completely render a web page. This is an excellent result, as only a small number of websites can load faster.

Performance Metrics

jianpu.cn performance score

52

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.0 s

48/100

10%

LCP (Largest Contentful Paint)

Value3.0 s

77/100

25%

SI (Speed Index)

Value6.1 s

45/100

10%

TBT (Total Blocking Time)

Value1,340 ms

17/100

30%

CLS (Cumulative Layout Shift)

Value0.003

100/100

15%

TTI (Time to Interactive)

Value9.0 s

33/100

10%

Network Requests Diagram

jianpu.cn

2109 ms

www.jianpu.cn

2276 ms

detail.css

9 ms

public.js

22 ms

endpage_nav_bg.jpg

16 ms

Our browser made a total of 44 requests to load all elements on the main page. We found that 11% of them (5 requests) were addressed to the original Jianpu.cn, 14% (6 requests) were made to Pagead2.googlesyndication.com and 14% (6 requests) were made to Images.dangdang.com. The less responsive or slowest element that took the longest time to load (11.4 sec) relates to the external source Dangdang.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 86.8 kB (36%)

Content Size

240.7 kB

After Optimization

153.9 kB

In fact, the total size of Jianpu.cn main page is 240.7 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. 25% of websites need less resources to load. Javascripts take 98.3 kB which makes up the majority of the site volume.

HTML Optimization

-71%

Potential reduce by 19.9 kB

  • Original 27.9 kB
  • After minification 26.6 kB
  • After compression 8.0 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 19.9 kB or 71% of the original size.

Image Optimization

-2%

Potential reduce by 2.3 kB

  • Original 95.7 kB
  • After minification 93.3 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. Jianpu images are well optimized though.

JavaScript Optimization

-52%

Potential reduce by 51.5 kB

  • Original 98.3 kB
  • After minification 97.0 kB
  • After compression 46.8 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 51.5 kB or 52% of the original size.

CSS Optimization

-70%

Potential reduce by 13.1 kB

  • Original 18.9 kB
  • After minification 18.6 kB
  • After compression 5.8 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. Jianpu.cn needs all CSS files to be minified and compressed as it can save up to 13.1 kB or 70% of the original size.

Requests Breakdown

Number of requests can be reduced by 16 (44%)

Requests Now

36

After Optimization

20

The browser has sent 36 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Jianpu. 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 Review

jianpu.cn accessibility score

59

Accessibility Issues

ARIA

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.

Impact

Issue

High

[aria-*] attributes do not match their roles

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

Background and foreground colors do not have a sufficient contrast ratio.

Names and labels

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.

Impact

Issue

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

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

Best Practices

jianpu.cn best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

SEO Factors

jianpu.cn SEO score

67

Search Engine Optimization Advices

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Image elements do not have [alt] attributes

Language and Encoding

  • Language Detected

    ZH

  • Language Claimed

    ZH

  • Encoding

    GB2312

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

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