Tools & Wizards About Us
book.com screenshot

Report Summary

  • 32

    Performance

    Renders faster than
    52% of other websites

  • 84

    Accessibility

    Visual factors better than
    that of 56% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 82

    SEO

    Google-friendlier than
    44% of websites

book.com

Online Bookstore: Books, NOOK ebooks, Music, Movies & Toys | Barnes & Noble®

Page Load Speed

2.4 sec in total

First Response

86 ms

Resources Loaded

2.1 sec

Page Rendered

298 ms

book.com screenshot

About Website

Welcome to book.com homepage info - get ready to check Book best content for United States right away, or after learning these important things about book.com

Barnes & Noble’s online bookstore for books, NOOK ebooks & magazines. Shop music, movies, toys & games, too. Receive free shipping with your Barnes & Noble Membership.

Visit book.com

Key Findings

We analyzed Book.com page load time and found that the first response time was 86 ms and then it took 2.4 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 45% of websites can load faster.

Performance Metrics

book.com performance score

32

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.3 s

75/100

10%

LCP (Largest Contentful Paint)

Value3.0 s

77/100

25%

SI (Speed Index)

Value12.9 s

2/100

10%

TBT (Total Blocking Time)

Value4,490 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.329

35/100

15%

TTI (Time to Interactive)

Value23.8 s

1/100

10%

Network Requests Diagram

book.com

86 ms

www.barnesandnoble.com

152 ms

fonts.min.css

8 ms

concat.min.css

31 ms

homepagenew.min.css

29 ms

Our browser made a total of 235 requests to load all elements on the main page. We found that 0% of them (1 request) were addressed to the original Book.com, 20% (48 requests) were made to Dispatch.barnesandnoble.com and 16% (38 requests) were made to Prodimage.images-bn.com. The less responsive or slowest element that took the longest time to load (282 ms) relates to the external source D35tca7vmefkrc.cloudfront.net.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.5 MB (29%)

Content Size

5.2 MB

After Optimization

3.7 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Book.com main page is 5.2 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. Only a small number of websites need less resources to load. Images take 3.3 MB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 191.2 kB

  • Original 229.7 kB
  • After minification 215.8 kB
  • After compression 38.5 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 191.2 kB or 83% of the original size.

Image Optimization

-4%

Potential reduce by 143.7 kB

  • Original 3.3 MB
  • After minification 3.2 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. Book images are well optimized though.

JavaScript Optimization

-69%

Potential reduce by 973.1 kB

  • Original 1.4 MB
  • After minification 1.3 MB
  • After compression 442.5 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 973.1 kB or 69% of the original size.

CSS Optimization

-81%

Potential reduce by 192.9 kB

  • Original 239.0 kB
  • After minification 233.8 kB
  • After compression 46.1 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. Book.com needs all CSS files to be minified and compressed as it can save up to 192.9 kB or 81% of the original size.

Requests Breakdown

Number of requests can be reduced by 95 (46%)

Requests Now

206

After Optimization

111

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 206 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Book. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 53 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

book.com

book.com

86 ms

www.barnesandnoble.com

www.barnesandnoble.com

152 ms

fonts.min.css

fonts.min.css

8 ms

concat.min.css

concat.min.css

31 ms

homepagenew.min.css

homepagenew.min.css

29 ms

jquery-1.8.3.min.js

jquery-1.8.3.min.js

48 ms

head.js

head.js

60 ms

modernizr-custom.js

modernizr-custom.js

44 ms

polyfiller.js

polyfiller.js

46 ms

satelliteLib-c247216a2145ee58039f29269709adbc59bd1aa8.js

satelliteLib-c247216a2145ee58039f29269709adbc59bd1aa8.js

10 ms

vendor.js

vendor.js

84 ms

contrib.js

contrib.js

51 ms

modal.modals-browse.js

modal.modals-browse.js

84 ms

js-messaging.js

js-messaging.js

85 ms

bn.js

bn.js

84 ms

carousels.js

carousels.js

84 ms

js-countries.js

js-countries.js

85 ms

header-footer-data.jsp

header-footer-data.jsp

49 ms

id

id

22 ms

mbox-contents-818ae93e9ddb88d2c6e738e35919d0c384a933de.js

mbox-contents-818ae93e9ddb88d2c6e738e35919d0c384a933de.js

8 ms

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15 ms

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satellite-55afb50d66656131c80000f7.js

14 ms

target.js

target.js

71 ms

ajax

ajax

48 ms

id

id

12 ms

55b132556952e61bfc54e56a.js

55b132556952e61bfc54e56a.js

282 ms

MFWAJ-N9VRV-LJGEL-8H8XB-2XEMD

MFWAJ-N9VRV-LJGEL-8H8XB-2XEMD

281 ms

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globalnav_default_green_bg.png

278 ms

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270 ms

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238 ms

AT60027_BN_Readouts_SerialReader_NavFlyout_Generic.png

AT60027_BN_Readouts_SerialReader_NavFlyout_Generic.png

202 ms

AT63542_NOOK_10in_BundleOffer_NavFlyout.png

AT63542_NOOK_10in_BundleOffer_NavFlyout.png

202 ms

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206 ms

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206 ms

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203 ms

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205 ms

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203 ms

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206 ms

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208 ms

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241 ms

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211 ms

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211 ms

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247 ms

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249 ms

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252 ms

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252 ms

BNNav_sprite.png

BNNav_sprite.png

224 ms

bg-img-select-arrow.png

bg-img-select-arrow.png

235 ms

globalnav_flyout_hdr_bg.png

globalnav_flyout_hdr_bg.png

215 ms

globalnav_nook_up.jpg

globalnav_nook_up.jpg

216 ms

btn_prev_carousel.png

btn_prev_carousel.png

222 ms

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btn_next_carousel.png

221 ms

arrow-go.png

arrow-go.png

228 ms

star-rating.png

star-rating.png

227 ms

icon-store-locator.png

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235 ms

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233 ms

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233 ms

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analytics.js

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117 ms

gpt.js

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shim-ext.css

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form-shim-extend.js

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66 ms

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collect

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54 ms

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51 ms

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conversion.js

43 ms

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st.v3.js

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37 ms

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35 ms

container.html

container.html

161 ms

254 ms

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211 ms

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91 ms

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28 ms

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13 ms

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67 ms

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70 ms

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63 ms

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69 ms

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69 ms

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70 ms

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70 ms

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63 ms

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59 ms

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55 ms

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57 ms

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57 ms

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bidder_id=75565&bidder_user_id=07427e30-3686-4bb7-831a-7a9bb657599b

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Accessibility Review

book.com accessibility score

84

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

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

Buttons do not have an accessible name

High

Links do not have a discernible name

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.

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

Definition list items are not wrapped in <dl> elements

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

Best Practices

book.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

book.com SEO score

82

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

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

    N/A

  • Encoding

    UTF-8

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

book.com

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