Tools & Wizards About Us
blackbelt.analyticsvidhya.com screenshot

Report Summary

  • 8

    Performance

    Renders faster than
    22% of other websites

  • 70

    Accessibility

    Visual factors better than
    that of 35% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 77

    SEO

    Google-friendlier than
    36% of websites

blackbelt.analyticsvidhya.com

Analytics Vidhya Program

Page Load Speed

2.3 sec in total

First Response

889 ms

Resources Loaded

1.3 sec

Page Rendered

64 ms

blackbelt.analyticsvidhya.com screenshot

About Website

Visit blackbelt.analyticsvidhya.com now to see the best up-to-date Blackbelt Analytics Vidhya content for India and also check out these interesting facts you probably never knew about blackbelt.analyticsvidhya.com

Analytics Vidhya is the leading community of Analytics, Data Science and AI professionals. We are building the next generation of AI professionals. Get the latest data science, machine learning, and A...

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Key Findings

We analyzed Blackbelt.analyticsvidhya.com page load time and found that the first response time was 889 ms and then it took 1.4 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 30% of websites can load faster.

Performance Metrics

blackbelt.analyticsvidhya.com performance score

8

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.6 s

31/100

10%

LCP (Largest Contentful Paint)

Value10.0 s

0/100

25%

SI (Speed Index)

Value20.3 s

0/100

10%

TBT (Total Blocking Time)

Value3,650 ms

1/100

30%

CLS (Cumulative Layout Shift)

Value0.39

26/100

15%

TTI (Time to Interactive)

Value19.9 s

2/100

10%

Network Requests Diagram

bbplus

889 ms

css2

59 ms

main.fb10e298.js

125 ms

main.ee42eb14.css

79 ms

jquery.min.js

65 ms

Our browser made a total of 8 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original Blackbelt.analyticsvidhya.com, 13% (1 request) were made to Fonts.googleapis.com and 13% (1 request) were made to Cdnjs.cloudflare.com. The less responsive or slowest element that took the longest time to load (889 ms) relates to the external source Analyticsvidhya.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 2.4 kB (0%)

Content Size

1.0 MB

After Optimization

1.0 MB

  • HTML
  • JavaScript
  • CSS

In fact, the total size of Blackbelt.analyticsvidhya.com main page is 1.0 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. Only 10% of websites need less resources to load. Javascripts take 984.3 kB which makes up the majority of the site volume.

HTML Optimization

-56%

Potential reduce by 2.2 kB

  • Original 4.0 kB
  • After minification 4.0 kB
  • After compression 1.8 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 2.2 kB or 56% of the original size.

JavaScript Optimization

-0%

Potential reduce by 192 B

  • Original 984.3 kB
  • After minification 984.3 kB
  • After compression 984.1 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. This website has mostly compressed JavaScripts.

CSS Optimization

-0%

Potential reduce by 0 B

  • Original 52.6 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.

Requests Breakdown

Number of requests can be reduced by 4 (57%)

Requests Now

7

After Optimization

3

  • JavaScript
  • CSS

The browser has sent 7 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Blackbelt Analytics Vidhya. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

bbplus

bbplus

889 ms

css2

css2

59 ms

main.fb10e298.js

main.fb10e298.js

125 ms

main.ee42eb14.css

main.ee42eb14.css

79 ms

jquery.min.js

jquery.min.js

65 ms

events.js

events.js

372 ms

webengage-min-v-6.0.js

webengage-min-v-6.0.js

69 ms

v84a3a4012de94ce1a686ba8c167c359c1696973893317

v84a3a4012de94ce1a686ba8c167c359c1696973893317

120 ms

Accessibility Review

blackbelt.analyticsvidhya.com accessibility score

70

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

[role] values are not valid

High

ARIA IDs are not unique

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

Buttons do not have an accessible name

Low

No form fields have multiple labels

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Best Practices

blackbelt.analyticsvidhya.com best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

SEO Factors

blackbelt.analyticsvidhya.com SEO score

77

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

Links do not have descriptive text

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

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

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

blackbelt.analyticsvidhya.com

Open Graph description is not detected on the main page of Blackbelt Analytics Vidhya. 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: