Tools & Wizards About Us
coursebooks.co.in screenshot

Report Summary

  • 18

    Performance

    Renders faster than
    35% of other websites

  • 66

    Accessibility

    Visual factors better than
    that of 32% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 85

    SEO

    Google-friendlier than
    56% of websites

coursebooks.co.in

CourseBooks-Buy Second Hand Course Books,Books no longer in print, eBooks, eComics, eMagazines Online

Page Load Speed

11.8 sec in total

First Response

3.9 sec

Resources Loaded

5.8 sec

Page Rendered

2.1 sec

coursebooks.co.in screenshot

About Website

Click here to check amazing Course Books content. Otherwise, check out these important facts you probably never knew about coursebooks.co.in

eBooks|CourseBooks|UniversityBooks|SchoolBooks|CollegeBooks|eBooks for free Download|OldBooks| ScannedBooks OCR enabled|eLibrary|Books not in Print|StudyGuides

Visit coursebooks.co.in

Key Findings

We analyzed Coursebooks.co.in page load time and found that the first response time was 3.9 sec and then it took 7.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.

Performance Metrics

coursebooks.co.in performance score

18

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value11.6 s

0/100

10%

LCP (Largest Contentful Paint)

Value11.7 s

0/100

25%

SI (Speed Index)

Value14.0 s

1/100

10%

TBT (Total Blocking Time)

Value1,900 ms

8/100

30%

CLS (Cumulative Layout Shift)

Value0.041

99/100

15%

TTI (Time to Interactive)

Value20.1 s

2/100

10%

Network Requests Diagram

coursebooks.co.in

3931 ms

base.css

372 ms

ckeditor.css

202 ms

dawn.css

217 ms

prettyPhoto.css

285 ms

Our browser made a total of 81 requests to load all elements on the main page. We found that 47% of them (38 requests) were addressed to the original Coursebooks.co.in, 14% (11 requests) were made to Yceml.net and 7% (6 requests) were made to Cdnjs.cloudflare.com. The less responsive or slowest element that took the longest time to load (3.9 sec) belongs to the original domain Coursebooks.co.in.

Page Optimization Overview & Recommendations

Page size can be reduced by 298.8 kB (79%)

Content Size

380.3 kB

After Optimization

81.5 kB

  • HTML
  • JavaScript
  • CSS

In fact, the total size of Coursebooks.co.in main page is 380.3 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. 60% of websites need less resources to load. CSS take 253.6 kB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 52.7 kB

  • Original 65.1 kB
  • After minification 58.9 kB
  • After compression 12.5 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. 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 52.7 kB or 81% of the original size.

JavaScript Optimization

-53%

Potential reduce by 32.4 kB

  • Original 61.6 kB
  • After minification 50.0 kB
  • After compression 29.2 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 32.4 kB or 53% of the original size.

CSS Optimization

-84%

Potential reduce by 213.8 kB

  • Original 253.6 kB
  • After minification 203.7 kB
  • After compression 39.8 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. Coursebooks.co.in needs all CSS files to be minified and compressed as it can save up to 213.8 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 42 (74%)

Requests Now

57

After Optimization

15

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 57 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Course Books. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 20 to 1 for JavaScripts and from 24 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

coursebooks.co.in

coursebooks.co.in

3931 ms

base.css

base.css

372 ms

ckeditor.css

ckeditor.css

202 ms

dawn.css

dawn.css

217 ms

prettyPhoto.css

prettyPhoto.css

285 ms

superfish.css

superfish.css

201 ms

video-js.css

video-js.css

265 ms

slicebox.css

slicebox.css

288 ms

nivo-slider.css

nivo-slider.css

288 ms

owl.carousel.css

owl.carousel.css

303 ms

justifiedGallery.min.css

justifiedGallery.min.css

352 ms

animation.css

animation.css

488 ms

ui-dialog.css

ui-dialog.css

375 ms

jquery-jvectormap-2.0.2.css

jquery-jvectormap-2.0.2.css

377 ms

lightbox.css

lightbox.css

391 ms

base-min.css

base-min.css

438 ms

grids-min.css

grids-min.css

487 ms

grids-responsive.css

grids-responsive.css

546 ms

grids-custom.css

grids-custom.css

492 ms

altgrid.css

altgrid.css

491 ms

bootstrap.css

bootstrap.css

522 ms

style.css

style.css

618 ms

jquery-1.12.4.min.js

jquery-1.12.4.min.js

103 ms

jquery-ui.min.js

jquery-ui.min.js

131 ms

i18n.js

i18n.js

569 ms

imagesloaded.min.js

imagesloaded.min.js

571 ms

en.js

en.js

569 ms

xregexp-all.min.js

xregexp-all.min.js

143 ms

jquery.jplayer.js

jquery.jplayer.js

169 ms

jplayer.playlist.min.js

jplayer.playlist.min.js

169 ms

jquery.asterion.utils.ui.js

jquery.asterion.utils.ui.js

603 ms

jquery.asterion.link-intercept.js

jquery.asterion.link-intercept.js

633 ms

galleria.js

galleria.js

181 ms

spectrum.min.js

spectrum.min.js

178 ms

proMarket

proMarket

782 ms

asterion.js

asterion.js

914 ms

font-awesome.min.css

font-awesome.min.css

64 ms

spectrum.min.css

spectrum.min.css

172 ms

css

css

39 ms

site-125361.js

site-125361.js

48 ms

close.png

close.png

101 ms

loading.gif

loading.gif

97 ms

prev.png

prev.png

97 ms

next.png

next.png

97 ms

ga.js

ga.js

7 ms

image-7960840-13580207

image-7960840-13580207

46 ms

image-7960840-13587723

image-7960840-13587723

95 ms

image-7960840-13572070

image-7960840-13572070

86 ms

image-7960840-13452011

image-7960840-13452011

86 ms

image-7960840-13428060

image-7960840-13428060

93 ms

image-7960840-13506963

image-7960840-13506963

93 ms

image-7960840-13127802

image-7960840-13127802

93 ms

image-7960840-13127896

image-7960840-13127896

217 ms

image-7960840-13428058

image-7960840-13428058

42 ms

image-7960840-12742003

image-7960840-12742003

82 ms

image-7960840-12315662

image-7960840-12315662

240 ms

233;105;3b5c04154e96b592e008dad5c88738c490d9f517.jpg

233;105;3b5c04154e96b592e008dad5c88738c490d9f517.jpg

281 ms

facebook.png

facebook.png

93 ms

email.png

email.png

206 ms

pinterest.png

pinterest.png

205 ms

twitter.png

twitter.png

205 ms

reddit.png

reddit.png

205 ms

__utm.gif

__utm.gif

48 ms

13428058-1547567941450

13428058-1547567941450

161 ms

13580207-1554111148628

13580207-1554111148628

157 ms

addthis_widget.js

addthis_widget.js

62 ms

12742003-1507304577241

12742003-1507304577241

45 ms

13572070-1559552508369

13572070-1559552508369

118 ms

13452011-1580468690866

13452011-1580468690866

116 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

13 ms

13587723-1559552479450

13587723-1559552479450

113 ms

13428060-1547567946041

13428060-1547567946041

114 ms

13127802-1580468695298

13127802-1580468695298

112 ms

13506963-1580468689206

13506963-1580468689206

113 ms

moatframe.js

moatframe.js

273 ms

13127896-1580468694544

13127896-1580468694544

27 ms

12315662-1580468706542

12315662-1580468706542

29 ms

460.gif

460.gif

43 ms

_ate.track.config_resp

_ate.track.config_resp

413 ms

300lo.json

300lo.json

82 ms

sh.f48a1a04fe8dbf021b4cda1d.html

sh.f48a1a04fe8dbf021b4cda1d.html

36 ms

Accessibility Review

coursebooks.co.in accessibility score

66

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

coursebooks.co.in 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

Page has valid source maps

SEO Factors

coursebooks.co.in SEO score

85

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

High

Tap targets are not sized appropriately

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 Coursebooks.co.in 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 Coursebooks.co.in 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

coursebooks.co.in

Open Graph data is detected on the main page of Course Books. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: