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blackstonelibrary.com screenshot

Report Summary

  • 8

    Performance

    Renders faster than
    22% of other websites

  • 90

    Accessibility

    Visual factors better than
    that of 74% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 77

    SEO

    Google-friendlier than
    36% of websites

blackstonelibrary.com

Library Sales | BlackstoneLibrary.com

Page Load Speed

3.4 sec in total

First Response

54 ms

Resources Loaded

2.4 sec

Page Rendered

925 ms

blackstonelibrary.com screenshot

About Website

Click here to check amazing Blackstone Library content for United States. Otherwise, check out these important facts you probably never knew about blackstonelibrary.com

Blackstone Library is your one-stop shop for audiobooks. We are dedicated to providing top-quality audio content, offering over 25,000 unabridged titles—with more than 500 new releases and 75 exclusiv...

Visit blackstonelibrary.com

Key Findings

We analyzed Blackstonelibrary.com page load time and found that the first response time was 54 ms and then it took 3.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Performance Metrics

blackstonelibrary.com performance score

8

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value8.2 s

0/100

10%

LCP (Largest Contentful Paint)

Value11.6 s

0/100

25%

SI (Speed Index)

Value10.5 s

7/100

10%

TBT (Total Blocking Time)

Value2,750 ms

3/100

30%

CLS (Cumulative Layout Shift)

Value0.298

40/100

15%

TTI (Time to Interactive)

Value16.0 s

6/100

10%

Network Requests Diagram

blackstonelibrary.com

54 ms

blackstonelibrary.com

418 ms

www.blackstonelibrary.com

966 ms

9bef2de28814cd23708f0c2ef09583d5_1710351430.css

37 ms

b03aa13192c3b31f70ea14bc2c2f87b1_1710351430.js

50 ms

Our browser made a total of 68 requests to load all elements on the main page. We found that 68% of them (46 requests) were addressed to the original Blackstonelibrary.com, 15% (10 requests) were made to Dsxuu8etcj8kw.cloudfront.net and 4% (3 requests) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (966 ms) belongs to the original domain Blackstonelibrary.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 474.8 kB (21%)

Content Size

2.2 MB

After Optimization

1.7 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Blackstonelibrary.com main page is 2.2 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. 75% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Javascripts take 802.5 kB which makes up the majority of the site volume.

HTML Optimization

-87%

Potential reduce by 458.4 kB

  • Original 529.8 kB
  • After minification 528.5 kB
  • After compression 71.4 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 458.4 kB or 87% of the original size.

Image Optimization

-1%

Potential reduce by 4.7 kB

  • Original 757.7 kB
  • After minification 753.0 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. Blackstone Library images are well optimized though.

JavaScript Optimization

-1%

Potential reduce by 11.7 kB

  • Original 802.5 kB
  • After minification 802.5 kB
  • After compression 790.8 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 0 B

  • Original 122.9 kB
  • After minification 122.9 kB
  • After compression 122.9 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. Blackstonelibrary.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 21 (34%)

Requests Now

62

After Optimization

41

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 62 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Blackstone Library. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 11 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

blackstonelibrary.com

blackstonelibrary.com

54 ms

blackstonelibrary.com

blackstonelibrary.com

418 ms

www.blackstonelibrary.com

www.blackstonelibrary.com

966 ms

9bef2de28814cd23708f0c2ef09583d5_1710351430.css

9bef2de28814cd23708f0c2ef09583d5_1710351430.css

37 ms

b03aa13192c3b31f70ea14bc2c2f87b1_1710351430.js

b03aa13192c3b31f70ea14bc2c2f87b1_1710351430.js

50 ms

8afbbc6ced20ccc8a93d1b676b848f2f_1710351430.js

8afbbc6ced20ccc8a93d1b676b848f2f_1710351430.js

47 ms

css

css

45 ms

174d55f7a3322bd64c74efe5487f3bcd_1710351430.css

174d55f7a3322bd64c74efe5487f3bcd_1710351430.css

265 ms

21129138.js

21129138.js

302 ms

js

js

262 ms

css

css

260 ms

css

css

37 ms

fbevents.js

fbevents.js

175 ms

Blackstone-Library-logo.png

Blackstone-Library-logo.png

78 ms

Blackstone-Mobile-Logo.png

Blackstone-Mobile-Logo.png

77 ms

transparent.png

transparent.png

78 ms

Showcase_Familiaris_Oprah.jpg

Showcase_Familiaris_Oprah.jpg

113 ms

Showcase_BlackstoneUnlimited_FEB2024.jpg

Showcase_BlackstoneUnlimited_FEB2024.jpg

76 ms

naxos30th-showcase.jpg

naxos30th-showcase.jpg

114 ms

Showcase_UABB.jpg

Showcase_UABB.jpg

176 ms

Showcase_SummerListening_1_.jpg

Showcase_SummerListening_1_.jpg

114 ms

Showcase_Gaslight_LR.jpg

Showcase_Gaslight_LR.jpg

115 ms

Showcase_BlindtoMidnight.jpg

Showcase_BlindtoMidnight.jpg

114 ms

BrothersKenney.jpg

BrothersKenney.jpg

174 ms

Ways-to-save-mobile-baner.png

Ways-to-save-mobile-baner.png

175 ms

lazy_load_transparent.png

lazy_load_transparent.png

174 ms

play@2x.png

play@2x.png

174 ms

pause@2x.png

pause@2x.png

173 ms

naxos30th-brick_1__1.jpg

naxos30th-brick_1__1.jpg

180 ms

AM_Brick.jpg

AM_Brick.jpg

176 ms

Brick_BeachListening_1_.jpg

Brick_BeachListening_1_.jpg

180 ms

Brick_DisabilityPride.jpg

Brick_DisabilityPride.jpg

178 ms

Brick_SummerListening_1_.jpg

Brick_SummerListening_1_.jpg

177 ms

shogun_brick.jpg

shogun_brick.jpg

176 ms

Smurfs_Brick.jpg

Smurfs_Brick.jpg

180 ms

AllisFoundSocial_Brick_Approved_1.png

AllisFoundSocial_Brick_Approved_1.png

180 ms

311x133_BlackstoneUnlimited_2_.jpg

311x133_BlackstoneUnlimited_2_.jpg

228 ms

audiofile.jpg

audiofile.jpg

229 ms

brick-NYT-best-sellers.jpg

brick-NYT-best-sellers.jpg

231 ms

Brick_LibraryReads.jpg

Brick_LibraryReads.jpg

229 ms

311x133_BookClubFaves.jpg

311x133_BookClubFaves.jpg

230 ms

Audiolibros.jpg

Audiolibros.jpg

229 ms

brick-at-the-movies.jpg

brick-at-the-movies.jpg

231 ms

CollectionDevelopmentServices.jpg

CollectionDevelopmentServices.jpg

230 ms

banner.js

banner.js

178 ms

web-interactives-embed.js

web-interactives-embed.js

174 ms

21129138.js

21129138.js

172 ms

fb.js

fb.js

171 ms

all.js

all.js

151 ms

magnifying-glass.svg

magnifying-glass.svg

833 ms

algolia-searchx-trans.png

algolia-searchx-trans.png

208 ms

KievitWeb.woff

KievitWeb.woff

183 ms

icomoon.ttf

icomoon.ttf

182 ms

getCartCount

getCartCount

805 ms

ajax-loader2.gif

ajax-loader2.gif

142 ms

all.js

all.js

86 ms

i497-square-240.jpg

i497-square-240.jpg

50 ms

husi-square-240.jpg

husi-square-240.jpg

438 ms

i3oa-square-240.jpg

i3oa-square-240.jpg

443 ms

i498-square-240.jpg

i498-square-240.jpg

449 ms

i2fw-square-240.jpg

i2fw-square-240.jpg

447 ms

d0ad-square-240.jpg

d0ad-square-240.jpg

448 ms

i832-square-240.jpg

i832-square-240.jpg

446 ms

i6ji-square-240.jpg

i6ji-square-240.jpg

447 ms

ht95-square-240.jpg

ht95-square-240.jpg

448 ms

i83o-square-240.jpg

i83o-square-240.jpg

449 ms

KievitWeb-Bold.woff

KievitWeb-Bold.woff

417 ms

coloredbg.png

coloredbg.png

29 ms

Accessibility Review

blackstonelibrary.com accessibility score

90

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

Best Practices

blackstonelibrary.com best practices score

83

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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

SEO Factors

blackstonelibrary.com SEO score

77

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 Blackstonelibrary.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 Blackstonelibrary.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

blackstonelibrary.com

Open Graph description is not detected on the main page of Blackstone Library. 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: