Tools & Wizards About Us

Report Summary

  • 68

    Performance

    Renders faster than
    80% of other websites

  • 80

    Accessibility

    Visual factors better than
    that of 49% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

test657.physicsgalaxy.com

Online Physics Video Lectures, Classes and Courses - Physics Galaxy

Page Load Speed

786 ms in total

First Response

170 ms

Resources Loaded

546 ms

Page Rendered

70 ms

About Website

Click here to check amazing Test 657 Physics Galaxy content for India. Otherwise, check out these important facts you probably never knew about test657.physicsgalaxy.com

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

Visit test657.physicsgalaxy.com

Key Findings

We analyzed Test657.physicsgalaxy.com page load time and found that the first response time was 170 ms and then it took 616 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

test657.physicsgalaxy.com performance score

68

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.7 s

60/100

10%

LCP (Largest Contentful Paint)

Value7.7 s

3/100

25%

SI (Speed Index)

Value2.7 s

96/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.024

100/100

15%

TTI (Time to Interactive)

Value5.8 s

67/100

10%

Network Requests Diagram

test657.physicsgalaxy.com

170 ms

bootstrap.css

84 ms

style.css

64 ms

responsive.css

44 ms

logo.png

45 ms

Our browser made a total of 23 requests to load all elements on the main page. We found that 87% of them (20 requests) were addressed to the original Test657.physicsgalaxy.com, 13% (3 requests) were made to Physicsgalaxy.com. The less responsive or slowest element that took the longest time to load (222 ms) relates to the external source Physicsgalaxy.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 415.3 kB (76%)

Content Size

549.1 kB

After Optimization

133.8 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Test657.physicsgalaxy.com main page is 549.1 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. 25% of websites need less resources to load. Javascripts take 315.0 kB which makes up the majority of the site volume.

HTML Optimization

-85%

Potential reduce by 32.3 kB

  • Original 38.1 kB
  • After minification 29.1 kB
  • After compression 5.8 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. This page needs HTML code to be minified as it can gain 9.0 kB, which is 24% 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 32.3 kB or 85% of the original size.

Image Optimization

-16%

Potential reduce by 4.8 kB

  • Original 30.7 kB
  • After minification 25.8 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. Obviously, Test 657 Physics Galaxy needs image optimization as it can save up to 4.8 kB or 16% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-75%

Potential reduce by 237.0 kB

  • Original 315.0 kB
  • After minification 291.1 kB
  • After compression 78.0 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 75% of the original size.

CSS Optimization

-85%

Potential reduce by 141.2 kB

  • Original 165.3 kB
  • After minification 135.2 kB
  • After compression 24.1 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. Test657.physicsgalaxy.com needs all CSS files to be minified and compressed as it can save up to 141.2 kB or 85% of the original size.

Requests Breakdown

Number of requests can be reduced by 8 (50%)

Requests Now

16

After Optimization

8

  • Images
  • JavaScript
  • CSS

The browser has sent 16 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Test 657 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 6 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

test657.physicsgalaxy.com accessibility score

80

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

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

Best Practices

test657.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

test657.physicsgalaxy.com SEO score

83

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

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Test657.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 Test657.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

Open Graph description is not detected on the main page of Test 657 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: