Tools & Wizards About Us
bluerocketbooks.com screenshot

Report Summary

  • 60

    Performance

    Renders faster than
    75% of other websites

  • 75

    Accessibility

    Visual factors better than
    that of 41% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 62

    SEO

    Google-friendlier than
    23% of websites

bluerocketbooks.com

Textbook Buyback | Textbook Sell Back | Textbooks Buybacks | Selling Textbooks for Cash | Blue Rocket Books

Page Load Speed

1.6 sec in total

First Response

129 ms

Resources Loaded

1.3 sec

Page Rendered

117 ms

bluerocketbooks.com screenshot

About Website

Visit bluerocketbooks.com now to see the best up-to-date Blue Rocket Books content for United States and also check out these interesting facts you probably never knew about bluerocketbooks.com

Blue Rocket Books offers convenient textbook buyback services, online price comparison, and free shipping! We make textbook sell back easy, you get paid cash!

Visit bluerocketbooks.com

Key Findings

We analyzed Bluerocketbooks.com page load time and found that the first response time was 129 ms and then it took 1.4 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 30% of websites can load faster.

Performance Metrics

bluerocketbooks.com performance score

60

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.9 s

25/100

10%

LCP (Largest Contentful Paint)

Value6.7 s

8/100

25%

SI (Speed Index)

Value4.0 s

80/100

10%

TBT (Total Blocking Time)

Value210 ms

88/100

30%

CLS (Cumulative Layout Shift)

Value0.014

100/100

15%

TTI (Time to Interactive)

Value6.3 s

60/100

10%

Network Requests Diagram

bluerocketbooks.com

129 ms

bluerocketbooks.com

339 ms

js

64 ms

night.css

125 ms

main.css

183 ms

Our browser made a total of 58 requests to load all elements on the main page. We found that 83% of them (48 requests) were addressed to the original Bluerocketbooks.com, 3% (2 requests) were made to Dandb.com and 3% (2 requests) were made to Ecx.images-amazon.com. The less responsive or slowest element that took the longest time to load (423 ms) belongs to the original domain Bluerocketbooks.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 157.5 kB (52%)

Content Size

303.4 kB

After Optimization

145.8 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Bluerocketbooks.com main page is 303.4 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. 20% of websites need less resources to load. Javascripts take 151.0 kB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 26.5 kB

  • Original 34.2 kB
  • After minification 28.7 kB
  • After compression 7.7 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 5.5 kB, which is 16% 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 26.5 kB or 77% of the original size.

Image Optimization

-16%

Potential reduce by 17.8 kB

  • Original 112.4 kB
  • After minification 94.6 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, Blue Rocket Books needs image optimization as it can save up to 17.8 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

-72%

Potential reduce by 109.0 kB

  • Original 151.0 kB
  • After minification 116.4 kB
  • After compression 42.0 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 109.0 kB or 72% of the original size.

CSS Optimization

-73%

Potential reduce by 4.2 kB

  • Original 5.8 kB
  • After minification 4.7 kB
  • After compression 1.6 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. Bluerocketbooks.com needs all CSS files to be minified and compressed as it can save up to 4.2 kB or 73% of the original size.

Requests Breakdown

Number of requests can be reduced by 26 (46%)

Requests Now

56

After Optimization

30

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 56 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Blue Rocket 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 7 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

bluerocketbooks.com

bluerocketbooks.com

129 ms

bluerocketbooks.com

bluerocketbooks.com

339 ms

js

js

64 ms

night.css

night.css

125 ms

main.css

main.css

183 ms

placeholder.js

placeholder.js

191 ms

prototype-1.6.0.3.js

prototype-1.6.0.3.js

385 ms

orderFormValidate.js

orderFormValidate.js

193 ms

badge

badge

85 ms

51FkhjP7XIL._SL75_.jpg

51FkhjP7XIL._SL75_.jpg

9 ms

blueGradient_02.png

blueGradient_02.png

71 ms

nav-logo.png

nav-logo.png

126 ms

white-space.png

white-space.png

67 ms

affiliatesButton.png

affiliatesButton.png

71 ms

white-space-under-search-bubble.png

white-space-under-search-bubble.png

67 ms

white-space-next-to-cart-icons.png

white-space-next-to-cart-icons.png

70 ms

vertical_rule.png

vertical_rule.png

131 ms

cart_icon.png

cart_icon.png

130 ms

ship_icon.png

ship_icon.png

132 ms

repeatable-nav-top-half.png

repeatable-nav-top-half.png

131 ms

large-orange-nav-top.png

large-orange-nav-top.png

127 ms

nav-top-right-corner.png

nav-top-right-corner.png

186 ms

home_on.png

home_on.png

188 ms

buy-books.png

buy-books.png

192 ms

sell-books.png

sell-books.png

193 ms

help.png

help.png

194 ms

about-us.png

about-us.png

194 ms

repeatable-headerRow.png

repeatable-headerRow.png

246 ms

right-of-main-buttons.png

right-of-main-buttons.png

250 ms

leftNav_BuyBooks.png

leftNav_BuyBooks.png

257 ms

leftNav_SellBooks.png

leftNav_SellBooks.png

259 ms

start_selling.png

start_selling.png

258 ms

1_search.png

1_search.png

259 ms

steps_hr.png

steps_hr.png

307 ms

2_ship.png

2_ship.png

311 ms

3_collect.png

3_collect.png

319 ms

footer-hr.png

footer-hr.png

320 ms

icon_twitter.png

icon_twitter.png

319 ms

icon_facebook.png

icon_facebook.png

320 ms

icon_delicious.png

icon_delicious.png

366 ms

icon_stumbleupon.png

icon_stumbleupon.png

373 ms

paypal_verified.png

paypal_verified.png

382 ms

footer-corners.png

footer-corners.png

384 ms

51zCLy%2BfE7L._SL75_.jpg

51zCLy%2BfE7L._SL75_.jpg

5 ms

all.js

all.js

32 ms

stars.png

stars.png

381 ms

top-search-bubble_narrower.png

top-search-bubble_narrower.png

382 ms

cart-icons-bubble.png

cart-icons-bubble.png

423 ms

ga.js

ga.js

32 ms

all.js

all.js

5 ms

75 ms

wide-whitespace.png

wide-whitespace.png

371 ms

leftnav-repeatable.png

leftnav-repeatable.png

379 ms

body-repeatable.png

body-repeatable.png

380 ms

headerCenterBackgroundBubble.png

headerCenterBackgroundBubble.png

379 ms

__utm.gif

__utm.gif

13 ms

grass.png

grass.png

370 ms

badgecontrol.jsp

badgecontrol.jsp

65 ms

Accessibility Review

bluerocketbooks.com accessibility score

75

Accessibility Issues

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

bluerocketbooks.com best practices score

58

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

bluerocketbooks.com SEO score

62

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

High

Page is blocked from indexing

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

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 Bluerocketbooks.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 Bluerocketbooks.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

bluerocketbooks.com

Open Graph description is not detected on the main page of Blue Rocket 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: