Tools & Wizards About Us
lanke.cc screenshot

Report Summary

  • 29

    Performance

    Renders faster than
    49% of other websites

  • 45

    Accessibility

    Visual factors better than
    that of 19% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 75

    SEO

    Google-friendlier than
    32% of websites

lanke.cc

烂柯围棋

Page Load Speed

4.1 sec in total

First Response

621 ms

Resources Loaded

3.4 sec

Page Rendered

76 ms

lanke.cc screenshot

About Website

Click here to check amazing Lanke content for China. Otherwise, check out these important facts you probably never knew about lanke.cc

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Visit lanke.cc

Key Findings

We analyzed Lanke.cc page load time and found that the first response time was 621 ms and then it took 3.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Performance Metrics

lanke.cc performance score

29

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value11.7 s

0/100

10%

LCP (Largest Contentful Paint)

Value21.7 s

0/100

25%

SI (Speed Index)

Value11.7 s

4/100

10%

TBT (Total Blocking Time)

Value660 ms

45/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value19.1 s

3/100

10%

Network Requests Diagram

lanke.cc

621 ms

www.lanke.cc

1007 ms

animate.min.css

784 ms

font_215916_fjhw3khiobo.css

20 ms

chunk-vendors.f19b8b41.css

377 ms

Our browser made a total of 22 requests to load all elements on the main page. We found that 59% of them (13 requests) were addressed to the original Lanke.cc, 36% (8 requests) were made to Lanke-math-uploadi.oss-cn-hangzhou.aliyuncs.com and 5% (1 request) were made to At.alicdn.com. The less responsive or slowest element that took the longest time to load (1.7 sec) belongs to the original domain Lanke.cc.

Page Optimization Overview & Recommendations

Page size can be reduced by 199.0 kB (20%)

Content Size

991.8 kB

After Optimization

792.8 kB

  • HTML
  • JavaScript
  • CSS

In fact, the total size of Lanke.cc main page is 991.8 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 925.5 kB which makes up the majority of the site volume.

HTML Optimization

-66%

Potential reduce by 2.3 kB

  • Original 3.5 kB
  • After minification 3.5 kB
  • After compression 1.2 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 2.3 kB or 66% of the original size.

JavaScript Optimization

-20%

Potential reduce by 187.4 kB

  • Original 925.5 kB
  • After minification 925.5 kB
  • After compression 738.0 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 187.4 kB or 20% of the original size.

CSS Optimization

-15%

Potential reduce by 9.2 kB

  • Original 62.8 kB
  • After minification 62.8 kB
  • After compression 53.6 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. Lanke.cc needs all CSS files to be minified and compressed as it can save up to 9.2 kB or 15% of the original size.

Requests Breakdown

Number of requests can be reduced by 18 (90%)

Requests Now

20

After Optimization

2

  • JavaScript
  • CSS

The browser has sent 20 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Lanke. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 16 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

lanke.cc

lanke.cc

621 ms

www.lanke.cc

www.lanke.cc

1007 ms

animate.min.css

animate.min.css

784 ms

font_215916_fjhw3khiobo.css

font_215916_fjhw3khiobo.css

20 ms

chunk-vendors.f19b8b41.css

chunk-vendors.f19b8b41.css

377 ms

app.2b5bdfee.css

app.2b5bdfee.css

568 ms

vue.min.js

vue.min.js

852 ms

vuex.min.js

vuex.min.js

835 ms

vue-router.min.js

vue-router.min.js

808 ms

vue-i18n.min.js

vue-i18n.min.js

820 ms

axios.min.js

axios.min.js

982 ms

socket.io.js

socket.io.js

1020 ms

vue-socketio.js

vue-socketio.js

1094 ms

three.js

three.js

1348 ms

Detector.js

Detector.js

577 ms

TrackballControls.js

TrackballControls.js

592 ms

tween.min.js

tween.min.js

593 ms

stats.js

stats.js

611 ms

jsQR.js

jsQR.js

940 ms

qrcode.js

qrcode.js

763 ms

chunk-vendors.559f8ef7.js

chunk-vendors.559f8ef7.js

1731 ms

app.2f3f5048.js

app.2f3f5048.js

1167 ms

Accessibility Review

lanke.cc accessibility score

45

Accessibility Issues

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.

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

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

Image elements do not have [alt] attributes

High

Form elements do not have associated labels

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

lanke.cc best practices score

58

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

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

High

Browser errors were logged to the console

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

lanke.cc SEO score

75

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

High

Links are not crawlable

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

Mobile Friendly

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/).

Impact

Issue

High

Document uses legible font sizes

Language and Encoding

  • Language Detected

    ZH

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Lanke.cc can be misinterpreted by Google and other search engines. Our service has detected that Chinese is used on the page, and it does not match the claimed English language. Our system also found out that Lanke.cc 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

lanke.cc

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