Tools & Wizards About Us
livestream.physicsgalaxy.com screenshot

Report Summary

  • 83

    Performance

    Renders faster than
    87% of other websites

  • 93

    Accessibility

    Visual factors better than
    that of 80% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 100

    SEO

    Google-friendlier than
    94% of websites

livestream.physicsgalaxy.com

Online Physics Video Lectures, Classes and Courses - Physics Galaxy

Page Load Speed

770 ms in total

First Response

125 ms

Resources Loaded

550 ms

Page Rendered

95 ms

livestream.physicsgalaxy.com screenshot

About Website

Visit livestream.physicsgalaxy.com now to see the best up-to-date Livestream Physics Galaxy content for India and also check out these interesting facts you probably never knew about livestream.physicsgalaxy.com

Physics Galaxy, world’s largest website for free online physics lectures, physics courses, class 12th physics and JEE physics video lectures.

Visit livestream.physicsgalaxy.com

Key Findings

We analyzed Livestream.physicsgalaxy.com page load time and found that the first response time was 125 ms and then it took 645 ms to load all DOM resources and completely render a web page. This is quite a good result, as only 10% of websites can load faster.

Performance Metrics

livestream.physicsgalaxy.com performance score

83

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.3 s

73/100

10%

LCP (Largest Contentful Paint)

Value3.2 s

73/100

25%

SI (Speed Index)

Value3.1 s

93/100

10%

TBT (Total Blocking Time)

Value50 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value9.6 s

29/100

10%

Network Requests Diagram

livestream.physicsgalaxy.com

125 ms

bootstrap.css

84 ms

style.css

119 ms

responsive.css

99 ms

logo.png

100 ms

Our browser made a total of 22 requests to load all elements on the main page. We found that 73% of them (16 requests) were addressed to the original Livestream.physicsgalaxy.com, 14% (3 requests) were made to Physicsgalaxy.com and 9% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (187 ms) relates to the external source Physicsgalaxy.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 408.8 kB (74%)

Content Size

551.1 kB

After Optimization

142.2 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Livestream.physicsgalaxy.com main page is 551.1 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. 35% of websites need less resources to load. Javascripts take 336.0 kB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 28.8 kB

  • Original 34.3 kB
  • After minification 23.8 kB
  • After compression 5.5 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 10.5 kB, which is 31% 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 28.8 kB or 84% of the original size.

Image Optimization

-1%

Potential reduce by 149 B

  • Original 13.5 kB
  • After minification 13.3 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. Livestream Physics Galaxy images are well optimized though.

JavaScript Optimization

-71%

Potential reduce by 237.0 kB

  • Original 336.0 kB
  • After minification 312.1 kB
  • After compression 99.0 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 237.0 kB or 71% of the original size.

CSS Optimization

-85%

Potential reduce by 142.9 kB

  • Original 167.3 kB
  • After minification 136.4 kB
  • After compression 24.4 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. Livestream.physicsgalaxy.com needs all CSS files to be minified and compressed as it can save up to 142.9 kB or 85% of the original size.

Requests Breakdown

Number of requests can be reduced by 10 (67%)

Requests Now

15

After Optimization

5

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 15 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Livestream Physics Galaxy. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

livestream.physicsgalaxy.com

livestream.physicsgalaxy.com

125 ms

bootstrap.css

bootstrap.css

84 ms

style.css

style.css

119 ms

responsive.css

responsive.css

99 ms

logo.png

logo.png

100 ms

jquery

jquery

126 ms

jquery.unobtrusive-ajax.js

jquery.unobtrusive-ajax.js

86 ms

jquery.validate.js

jquery.validate.js

113 ms

jquery.validate.unobtrusive.js

jquery.validate.unobtrusive.js

101 ms

modernizr.custom.26633.js

modernizr.custom.26633.js

104 ms

jquery-1.11.2.min.js

jquery-1.11.2.min.js

107 ms

ui-bootstrap.min.js

ui-bootstrap.min.js

158 ms

ui-bootstrap-tpls.min.js

ui-bootstrap-tpls.min.js

187 ms

bootstrap.min.js

bootstrap.min.js

146 ms

fonts.css

fonts.css

23 ms

Cart.png

Cart.png

22 ms

analytics.js

analytics.js

46 ms

Lato-Regular.woff

Lato-Regular.woff

48 ms

Lato-Bold.woff

Lato-Bold.woff

71 ms

Lato-Light.woff

Lato-Light.woff

109 ms

collect

collect

12 ms

js

js

61 ms

Accessibility Review

livestream.physicsgalaxy.com accessibility score

93

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-hidden="true"] elements contain focusable descendents

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

Best Practices

livestream.physicsgalaxy.com best practices score

67

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

livestream.physicsgalaxy.com SEO score

100

Search Engine Optimization Advices

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

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Livestream.physicsgalaxy.com can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Livestream.physicsgalaxy.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

livestream.physicsgalaxy.com

Open Graph description is not detected on the main page of Livestream Physics Galaxy. 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: