Tools & Wizards About Us
bookdome.com screenshot

Report Summary

  • 67

    Performance

    Renders faster than
    80% of other websites

  • 95

    Accessibility

    Visual factors better than
    that of 87% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 86

    SEO

    Google-friendlier than
    60% of websites

bookdome.com

BookDome.com: Free Books Online

Page Load Speed

1 sec in total

First Response

65 ms

Resources Loaded

497 ms

Page Rendered

481 ms

bookdome.com screenshot

About Website

Click here to check amazing Book Dome content for United States. Otherwise, check out these important facts you probably never knew about bookdome.com

BookDome.com contains free online books on various topics

Visit bookdome.com

Key Findings

We analyzed Bookdome.com page load time and found that the first response time was 65 ms and then it took 978 ms to load all DOM resources and completely render a web page. This is quite a good result, as only 20% of websites can load faster.

Performance Metrics

bookdome.com performance score

67

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.1 s

99/100

10%

LCP (Largest Contentful Paint)

Value1.1 s

100/100

25%

SI (Speed Index)

Value2.6 s

97/100

10%

TBT (Total Blocking Time)

Value1,010 ms

27/100

30%

CLS (Cumulative Layout Shift)

Value0.214

58/100

15%

TTI (Time to Interactive)

Value6.4 s

59/100

10%

Network Requests Diagram

bookdome.com

65 ms

addthis_widget.js

15 ms

ads.js

8 ms

style.css

11 ms

books.jpg

88 ms

Our browser made a total of 35 requests to load all elements on the main page. We found that 20% of them (7 requests) were addressed to the original Bookdome.com, 23% (8 requests) were made to Google.com and 9% (3 requests) were made to S7.addthis.com. The less responsive or slowest element that took the longest time to load (284 ms) relates to the external source Rcm-na.amazon-adsystem.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 446.5 kB (58%)

Content Size

769.1 kB

After Optimization

322.6 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Bookdome.com main page is 769.1 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. 35% of websites need less resources to load. Javascripts take 518.1 kB which makes up the majority of the site volume.

HTML Optimization

-71%

Potential reduce by 95.7 kB

  • Original 134.0 kB
  • After minification 132.3 kB
  • After compression 38.3 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 95.7 kB or 71% of the original size.

Image Optimization

-14%

Potential reduce by 9.8 kB

  • Original 68.4 kB
  • After minification 58.6 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, Book Dome needs image optimization as it can save up to 9.8 kB or 14% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-58%

Potential reduce by 303.1 kB

  • Original 518.1 kB
  • After minification 512.7 kB
  • After compression 215.1 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 303.1 kB or 58% of the original size.

CSS Optimization

-78%

Potential reduce by 38.0 kB

  • Original 48.6 kB
  • After minification 45.5 kB
  • After compression 10.6 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. Bookdome.com needs all CSS files to be minified and compressed as it can save up to 38.0 kB or 78% of the original size.

Requests Breakdown

Number of requests can be reduced by 16 (52%)

Requests Now

31

After Optimization

15

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 31 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Book Dome. 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 as a result speed up the page load time.

Network Requests Diagram

bookdome.com

bookdome.com

65 ms

addthis_widget.js

addthis_widget.js

15 ms

ads.js

ads.js

8 ms

style.css

style.css

11 ms

books.jpg

books.jpg

88 ms

arrow_right.gif

arrow_right.gif

88 ms

page_top.gif

page_top.gif

8 ms

bookdome.jpg

bookdome.jpg

8 ms

cse.js

cse.js

66 ms

ads-common.js

ads-common.js

6 ms

cm

cm

284 ms

cm

cm

58 ms

boost

boost

28 ms

300lo.json

300lo.json

48 ms

counter.5524cceca805eb4b9b2b.js

counter.5524cceca805eb4b9b2b.js

15 ms

analytics.js

analytics.js

41 ms

merienda-regular-webfont.woff

merienda-regular-webfont.woff

40 ms

sh.07f0d9bf220d07a763adad1e.html

sh.07f0d9bf220d07a763adad1e.html

34 ms

cse.js

cse.js

82 ms

125x125.gif

125x125.gif

33 ms

27 ms

shares.json

shares.json

57 ms

collect

collect

13 ms

collect

collect

52 ms

jsapi

jsapi

29 ms

default+en.css

default+en.css

2 ms

minimalist.css

minimalist.css

30 ms

default+en.I.js

default+en.I.js

10 ms

minimalist.css

minimalist.css

64 ms

async-ads.js

async-ads.js

80 ms

google_custom_search_watermark.gif

google_custom_search_watermark.gif

61 ms

small-logo.png

small-logo.png

17 ms

clear.gif

clear.gif

18 ms

5160qRbgXeL._SL80_.jpg

5160qRbgXeL._SL80_.jpg

54 ms

16 ms

Accessibility Review

bookdome.com accessibility score

95

Accessibility Issues

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

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

Best Practices

bookdome.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

Serves images with low resolution

General

Impact

Issue

High

Browser errors were logged to the console

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

bookdome.com SEO score

86

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

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

    ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Bookdome.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 Bookdome.com main page’s claimed encoding is iso-8859-1. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

bookdome.com

Open Graph description is not detected on the main page of Book Dome. 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: