Tools & Wizards About Us
kolkatabooks.com screenshot

Report Summary

  • 87

    Performance

    Renders faster than
    89% 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

  • 75

    SEO

    Google-friendlier than
    32% of websites

kolkatabooks.com

Kolkata based books Online Bookstore,Buy Books Online from Sagnik Books Kolkata , Online bookshop, Publishers & Rare Book seller in kolkata Sagnik Boo...

Page Load Speed

1.3 sec in total

First Response

92 ms

Resources Loaded

854 ms

Page Rendered

362 ms

kolkatabooks.com screenshot

About Website

Visit kolkatabooks.com now to see the best up-to-date Kolkata Books content for India and also check out these interesting facts you probably never knew about kolkatabooks.com

Sagnik Books - Online Bookstore,Buy Books Online,Book Publisher and rare book Seller of Kolkata India. Punthi Pustak, Firma KLM, K.P.Bagchi, R.N.Bhattacharya bookseller Sagnik Books, Zoological Survey...

Visit kolkatabooks.com

Key Findings

We analyzed Kolkatabooks.com page load time and found that the first response time was 92 ms and then it took 1.2 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 25% of websites can load faster.

Performance Metrics

kolkatabooks.com performance score

87

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.5 s

66/100

10%

LCP (Largest Contentful Paint)

Value2.8 s

82/100

25%

SI (Speed Index)

Value3.1 s

93/100

10%

TBT (Total Blocking Time)

Value70 ms

99/100

30%

CLS (Cumulative Layout Shift)

Value0.102

89/100

15%

TTI (Time to Interactive)

Value5.2 s

74/100

10%

Network Requests Diagram

kolkatabooks.com

92 ms

www.kolkatabooks.com

190 ms

core.css

171 ms

font-awesome.css

150 ms

slick.css

151 ms

Our browser made a total of 46 requests to load all elements on the main page. We found that 87% of them (40 requests) were addressed to the original Kolkatabooks.com, 9% (4 requests) were made to Maps.googleapis.com and 2% (1 request) were made to Google.com. The less responsive or slowest element that took the longest time to load (265 ms) belongs to the original domain Kolkatabooks.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 118.6 kB (5%)

Content Size

2.4 MB

After Optimization

2.3 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Kolkatabooks.com main page is 2.4 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. 30% of websites need less resources to load. Images take 2.2 MB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 52.1 kB

  • Original 62.0 kB
  • After minification 46.2 kB
  • After compression 9.9 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 15.8 kB, which is 26% 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 52.1 kB or 84% of the original size.

Image Optimization

-3%

Potential reduce by 54.7 kB

  • Original 2.2 MB
  • After minification 2.1 MB

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. Kolkata Books images are well optimized though.

JavaScript Optimization

-6%

Potential reduce by 9.3 kB

  • Original 145.3 kB
  • After minification 145.3 kB
  • After compression 135.9 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

-8%

Potential reduce by 2.5 kB

  • Original 32.2 kB
  • After minification 32.2 kB
  • After compression 29.7 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. Kolkatabooks.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 12 (29%)

Requests Now

42

After Optimization

30

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 42 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Kolkata 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 9 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

kolkatabooks.com

kolkatabooks.com

92 ms

www.kolkatabooks.com

www.kolkatabooks.com

190 ms

core.css

core.css

171 ms

font-awesome.css

font-awesome.css

150 ms

slick.css

slick.css

151 ms

slick-theme.css

slick-theme.css

159 ms

sb_styles.css

sb_styles.css

160 ms

jquery.js

jquery.js

187 ms

jquery.easing.js

jquery.easing.js

183 ms

core.js

core.js

218 ms

slick.js

slick.js

223 ms

slick-script.js

slick-script.js

195 ms

embed

embed

244 ms

bnr_shopNowUsing_150x40.gif

bnr_shopNowUsing_150x40.gif

65 ms

bg.gif

bg.gif

43 ms

up-arrow.png

up-arrow.png

41 ms

logo.png

logo.png

43 ms

books.png

books.png

40 ms

shopping_cart.png

shopping_cart.png

44 ms

captcha.php

captcha.php

90 ms

testi-arrow.png

testi-arrow.png

44 ms

P_456_P.jpg

P_456_P.jpg

78 ms

no-pic.jpg

no-pic.jpg

110 ms

P_75_P.jpg

P_75_P.jpg

73 ms

P_499_P.jpg

P_499_P.jpg

138 ms

P_564_P.jpg

P_564_P.jpg

140 ms

P_139_P.jpg

P_139_P.jpg

105 ms

P_406_P.jpg

P_406_P.jpg

110 ms

P_537_P.jpg

P_537_P.jpg

151 ms

photo.jpg

photo.jpg

44 ms

no-pic.jpg

no-pic.jpg

82 ms

P_413_P.jpg

P_413_P.jpg

265 ms

P_229_P.jpg

P_229_P.jpg

80 ms

fotter_bg.gif

fotter_bg.gif

83 ms

facebookico.png

facebookico.png

81 ms

in.png

in.png

82 ms

twitter-icon.png

twitter-icon.png

112 ms

fotter_bullet.gif

fotter_bullet.gif

113 ms

copyrights_bg.gif

copyrights_bg.gif

114 ms

ebs-india.png

ebs-india.png

114 ms

ajax-loader.gif

ajax-loader.gif

112 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

204 ms

js

js

42 ms

search.js

search.js

6 ms

geometry.js

geometry.js

10 ms

main.js

main.js

13 ms

Accessibility Review

kolkatabooks.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 input fields do not have accessible names

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

[id] attributes on active, focusable elements 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

<frame> or <iframe> elements do not have a title

High

Image elements do not have [alt] attributes

High

Form elements do not have associated labels

High

Links do not have a discernible name

Best Practices

kolkatabooks.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

kolkatabooks.com SEO score

75

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

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Links are not crawlable

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

    EN

  • Encoding

    UTF-8

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

kolkatabooks.com

Open Graph description is not detected on the main page of Kolkata Books. 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: