Tools & Wizards About Us
pkbigdata.com screenshot

Report Summary

  • 46

    Performance

    Renders faster than
    65% of other websites

  • 36

    Accessibility

    Visual factors better than
    that of 18% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 67

    SEO

    Google-friendlier than
    25% of websites

pkbigdata.com

DC竞赛——领先的大数据与人工智能竞赛平台

Page Load Speed

39.2 sec in total

First Response

2.6 sec

Resources Loaded

36.1 sec

Page Rendered

418 ms

pkbigdata.com screenshot

About Website

Welcome to pkbigdata.com homepage info - get ready to check Pkbigdata best content for China right away, or after learning these important things about pkbigdata.com

DataCastle（DC竞赛）是国内领先的大数据与人工智能竞赛平台，提供在线编程工具DCLab、数据集、开源分享和在线课程，积累20万数据科学领域用户。

Visit pkbigdata.com

Key Findings

We analyzed Pkbigdata.com page load time and found that the first response time was 2.6 sec and then it took 36.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 95% of websites can load faster. Unfortunately, there was 1 request timeout, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

pkbigdata.com performance score

46

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.7 s

5/100

10%

LCP (Largest Contentful Paint)

Value13.0 s

0/100

25%

SI (Speed Index)

Value15.2 s

1/100

10%

TBT (Total Blocking Time)

Value210 ms

88/100

30%

CLS (Cumulative Layout Shift)

Value0.091

92/100

15%

TTI (Time to Interactive)

Value6.8 s

55/100

10%

Network Requests Diagram

pkbigdata.com

2640 ms

jquery-1.8.3.min.js

2172 ms

jquery.cookie.js

929 ms

reset.css

9933 ms

header.css

2822 ms

Our browser made a total of 41 requests to load all elements on the main page. We found that 39% of them (16 requests) were addressed to the original Pkbigdata.com, 37% (15 requests) were made to Img.datacastle.cn and 17% (7 requests) were made to 0. The less responsive or slowest element that took the longest time to load (19.9 sec) relates to the external source Img.datacastle.cn.

Page Optimization Overview & Recommendations

Page size can be reduced by 38.5 kB (13%)

Content Size

286.4 kB

After Optimization

247.9 kB

  • HTML
  • Images

In fact, the total size of Pkbigdata.com main page is 286.4 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. Images take 265.9 kB which makes up the majority of the site volume.

HTML Optimization

-75%

Potential reduce by 15.3 kB

  • Original 20.4 kB
  • After minification 16.9 kB
  • After compression 5.2 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. This page needs HTML code to be minified as it can gain 3.5 kB, which is 17% 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 15.3 kB or 75% of the original size.

Image Optimization

-9%

Potential reduce by 23.2 kB

  • Original 265.9 kB
  • After minification 242.7 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. Pkbigdata images are well optimized though.

Requests Breakdown

Number of requests can be reduced by 8 (21%)

Requests Now

39

After Optimization

31

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 39 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Pkbigdata. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 9 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

pkbigdata.com

pkbigdata.com

2640 ms

jquery-1.8.3.min.js

jquery-1.8.3.min.js

2172 ms

jquery.cookie.js

jquery.cookie.js

929 ms

reset.css

reset.css

9933 ms

header.css

header.css

2822 ms

user_index.css

user_index.css

1108 ms

koala.min.1.5.js

koala.min.1.5.js

3620 ms

picGoIndex.js

picGoIndex.js

4354 ms

header.js

header.js

5105 ms

ajax.js

ajax.js

3750 ms

util.js

util.js

4750 ms

close.png

close.png

6256 ms

A.jpg

A.jpg

9317 ms

B.png

B.png

6262 ms

C.jpg

C.jpg

6811 ms

scroll.png

scroll.png

8543 ms

hm.js

hm.js

1083 ms

logo.png

logo.png

5615 ms

datacastle%20(2).jpg

datacastle%20(2).jpg

5884 ms

hm.gif

hm.gif

780 ms

nav_background.png

nav_background.png

5469 ms

bj1.jpg

bj1.jpg

5947 ms

all

all

4211 ms

getUserNoticeNum

getUserNoticeNum

460 ms

index.html

index.html

1048 ms

terminator2.2.min.js

terminator2.2.min.js

1366 ms

bannerVideo.png

bannerVideo.png

19891 ms

first_pic.jpg

first_pic.jpg

5799 ms

play.png

play.png

4244 ms

3e627ba2-f7e5-429e-a5cf-c98827a8d6a7.jpg

3e627ba2-f7e5-429e-a5cf-c98827a8d6a7.jpg

3825 ms

77887831-e409-4f99-9da5-61e0bb8d06ad.jpg

77887831-e409-4f99-9da5-61e0bb8d06ad.jpg

3017 ms

033c261d-6ccb-469f-84d3-6761e341b9d5.jpg

033c261d-6ccb-469f-84d3-6761e341b9d5.jpg

5457 ms

e77dfcba-8649-4a79-b5ed-6cc10bc3b7f6.jpg

e77dfcba-8649-4a79-b5ed-6cc10bc3b7f6.jpg

3986 ms

6ad052ba-aea1-4fe0-ba21-a4120bba92f6.png

6ad052ba-aea1-4fe0-ba21-a4120bba92f6.png

869 ms

241fb19a-c827-472d-9e98-734de81b932a.png

241fb19a-c827-472d-9e98-734de81b932a.png

5596 ms

f0d00080-ceeb-4707-a051-ba7a1fe14608.jpg

f0d00080-ceeb-4707-a051-ba7a1fe14608.jpg

1956 ms

9f3358d5-afad-4bb6-ac60-a87ee13449c1.png

9f3358d5-afad-4bb6-ac60-a87ee13449c1.png

996 ms

54892eab755ae.jpg

54892eab755ae.jpg

1306 ms

1d8ae6a2-6d56-43fc-a1d1-41bf654dc28c.jpg

1d8ae6a2-6d56-43fc-a1d1-41bf654dc28c.jpg

3840 ms

empty.png

empty.png

879 ms

hm.gif

hm.gif

666 ms

Accessibility Review

pkbigdata.com accessibility score

36

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

Links do not have a discernible name

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

pkbigdata.com best practices score

67

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

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

SEO Factors

pkbigdata.com SEO score

67

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

High

robots.txt is not valid

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 doesn't use 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 Pkbigdata.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 Pkbigdata.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

pkbigdata.com

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