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onlineclasshero.com screenshot

Report Summary

  • 35

    Performance

    Renders faster than
    55% of other websites

  • 88

    Accessibility

    Visual factors better than
    that of 68% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 86

    SEO

    Google-friendlier than
    60% of websites

onlineclasshero.com

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Page Load Speed

2.5 sec in total

First Response

57 ms

Resources Loaded

1.6 sec

Page Rendered

875 ms

onlineclasshero.com screenshot

About Website

Visit onlineclasshero.com now to see the best up-to-date Online Classhero content and also check out these interesting facts you probably never knew about onlineclasshero.com

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Key Findings

We analyzed Onlineclasshero.com page load time and found that the first response time was 57 ms and then it took 2.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

onlineclasshero.com performance score

35

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.4 s

16/100

10%

LCP (Largest Contentful Paint)

Value4.6 s

35/100

25%

SI (Speed Index)

Value6.6 s

37/100

10%

TBT (Total Blocking Time)

Value1,390 ms

16/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value13.7 s

10/100

10%

Network Requests Diagram

onlineclasshero.com

57 ms

onlineclasshero.com

456 ms

www.onlineclasshero.com

490 ms

css

45 ms

bootstrap.css

61 ms

Our browser made a total of 44 requests to load all elements on the main page. We found that 70% of them (31 requests) were addressed to the original Onlineclasshero.com, 9% (4 requests) were made to Cdn.jsdelivr.net and 7% (3 requests) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (490 ms) belongs to the original domain Onlineclasshero.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 88.1 kB (10%)

Content Size

871.2 kB

After Optimization

783.1 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Onlineclasshero.com main page is 871.2 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. 45% of websites need less resources to load. Images take 482.0 kB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 73.9 kB

  • Original 92.1 kB
  • After minification 72.6 kB
  • After compression 18.2 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 19.5 kB, which is 21% 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 73.9 kB or 80% of the original size.

Image Optimization

-2%

Potential reduce by 12.0 kB

  • Original 482.0 kB
  • After minification 470.0 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. Online Classhero images are well optimized though.

JavaScript Optimization

-1%

Potential reduce by 2.0 kB

  • Original 230.5 kB
  • After minification 230.5 kB
  • After compression 228.5 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 195 B

  • Original 66.6 kB
  • After minification 66.6 kB
  • After compression 66.4 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. Onlineclasshero.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 23 (61%)

Requests Now

38

After Optimization

15

  • Images
  • JavaScript
  • CSS

The browser has sent 38 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Online Classhero. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 12 to 1 for JavaScripts and from 13 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

onlineclasshero.com

onlineclasshero.com

57 ms

onlineclasshero.com

onlineclasshero.com

456 ms

www.onlineclasshero.com

www.onlineclasshero.com

490 ms

css

css

45 ms

bootstrap.css

bootstrap.css

61 ms

bootstrap-datepicker.min.css

bootstrap-datepicker.min.css

88 ms

owl.carousel.min.css

owl.carousel.min.css

87 ms

owl.theme.default.min.css

owl.theme.default.min.css

89 ms

style-new.css

style-new.css

95 ms

responsive.css

responsive.css

84 ms

animate.min.css

animate.min.css

27 ms

font-awesome.min.css

font-awesome.min.css

43 ms

hover.css@2.1.0,animatecss@3.5.1

hover.css@2.1.0,animatecss@3.5.1

214 ms

logo.png

logo.png

113 ms

email-decode.min.js

email-decode.min.js

84 ms

guarantee.png

guarantee.png

84 ms

teacher2.jpg

teacher2.jpg

85 ms

star.png

star.png

287 ms

teacher4.jpg

teacher4.jpg

286 ms

teacher3.jpg

teacher3.jpg

106 ms

owl.carousel.min.js

owl.carousel.min.js

71 ms

jquery.js

jquery.js

74 ms

plugins.js

plugins.js

251 ms

functions.js

functions.js

98 ms

wow.min.js

wow.min.js

49 ms

bootstrap-datepicker.min.js

bootstrap-datepicker.min.js

97 ms

custom.js

custom.js

96 ms

jquery.matchHeight-min.js

jquery.matchHeight-min.js

54 ms

sweetalert.min.js

sweetalert.min.js

14 ms

sweetalert.css

sweetalert.css

43 ms

rUYWVOgC1L-64ea4b68.js

rUYWVOgC1L-64ea4b68.js

118 ms

rocket-loader.min.js

rocket-loader.min.js

111 ms

css

css

34 ms

css

css

37 ms

loader.gif

loader.gif

209 ms

background.jpg

background.jpg

64 ms

take_test.png

take_test.png

403 ms

online_exam.jpg

online_exam.jpg

130 ms

secure.png

secure.png

63 ms

pay.png

pay.png

76 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

33 ms

1Ptgg87LROyAm3K9-Co.ttf

1Ptgg87LROyAm3K9-Co.ttf

34 ms

bg.png

bg.png

180 ms

owl.carousel.min.js

owl.carousel.min.js

18 ms

Accessibility Review

onlineclasshero.com accessibility score

88

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

onlineclasshero.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

Displays images with incorrect aspect ratio

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

onlineclasshero.com SEO score

86

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

    EN

  • Language Claimed

    EN

  • Encoding

    N/A

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Onlineclasshero.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 Onlineclasshero.com main page’s claimed encoding is . Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

onlineclasshero.com

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