Tools & Wizards About Us
booksonline.com.ua screenshot

Report Summary

  • 9

    Performance

    Renders faster than
    23% of other websites

  • 75

    Accessibility

    Visual factors better than
    that of 41% of websites

  • 50

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 80

    SEO

    Google-friendlier than
    42% of websites

booksonline.com.ua

Библиотека. Читать онлайн. Бесплатные книги читать онлайн. Читать книги без регистрации. booksonline.com.ua

Page Load Speed

9 sec in total

First Response

268 ms

Resources Loaded

8.2 sec

Page Rendered

506 ms

booksonline.com.ua screenshot

About Website

Visit booksonline.com.ua now to see the best up-to-date Booksonline content for Russia and also check out these interesting facts you probably never knew about booksonline.com.ua

Booksonline.com.ua - бесплатная электронная онлайн библиотека. На нашем ресурсе представлены книги разных жанров и тематик, которые вам будет удобно читать, как с любого мобильного устройства, так и с...

Visit booksonline.com.ua

Key Findings

We analyzed Booksonline.com.ua page load time and found that the first response time was 268 ms and then it took 8.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.

Performance Metrics

booksonline.com.ua performance score

9

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.4 s

38/100

10%

LCP (Largest Contentful Paint)

Value5.6 s

18/100

25%

SI (Speed Index)

Value16.5 s

0/100

10%

TBT (Total Blocking Time)

Value3,850 ms

1/100

30%

CLS (Cumulative Layout Shift)

Value1.039

2/100

15%

TTI (Time to Interactive)

Value32.3 s

0/100

10%

Network Requests Diagram

booksonline.com.ua

268 ms

booksonline.com.ua

2251 ms

style.css

93 ms

jquery.min.js

53 ms

adsbygoogle.js

249 ms

Our browser made a total of 140 requests to load all elements on the main page. We found that 40% of them (56 requests) were addressed to the original Booksonline.com.ua, 11% (16 requests) were made to Googleads.g.doubleclick.net and 6% (9 requests) were made to Rt.getsale.io. The less responsive or slowest element that took the longest time to load (3.6 sec) belongs to the original domain Booksonline.com.ua.

Page Optimization Overview & Recommendations

Page size can be reduced by 431.1 kB (27%)

Content Size

1.6 MB

After Optimization

1.2 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Booksonline.com.ua main page is 1.6 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. 65% of websites need less resources to load. Javascripts take 869.2 kB which makes up the majority of the site volume.

HTML Optimization

-87%

Potential reduce by 331.7 kB

  • Original 380.6 kB
  • After minification 353.5 kB
  • After compression 49.0 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 331.7 kB or 87% of the original size.

Image Optimization

-4%

Potential reduce by 13.8 kB

  • Original 322.0 kB
  • After minification 308.2 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. Booksonline images are well optimized though.

JavaScript Optimization

-10%

Potential reduce by 84.3 kB

  • Original 869.2 kB
  • After minification 869.0 kB
  • After compression 784.9 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

-12%

Potential reduce by 1.3 kB

  • Original 10.9 kB
  • After minification 10.9 kB
  • After compression 9.6 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. Booksonline.com.ua needs all CSS files to be minified and compressed as it can save up to 1.3 kB or 12% of the original size.

Requests Breakdown

Number of requests can be reduced by 55 (42%)

Requests Now

131

After Optimization

76

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 131 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Booksonline. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 44 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

booksonline.com.ua

booksonline.com.ua

268 ms

booksonline.com.ua

booksonline.com.ua

2251 ms

style.css

style.css

93 ms

jquery.min.js

jquery.min.js

53 ms

adsbygoogle.js

adsbygoogle.js

249 ms

client.js

client.js

636 ms

ads-async.js

ads-async.js

899 ms

gpt.js

gpt.js

135 ms

prebid4.3.0.js

prebid4.3.0.js

294 ms

load-106257.js

load-106257.js

697 ms

booksonline.com.ua.1533955.js

booksonline.com.ua.1533955.js

62 ms

412 ms

booksonline.com.ua.1532405.js

booksonline.com.ua.1532405.js

80 ms

lessframework.css

lessframework.css

290 ms

jRating.jquery.css

jRating.jquery.css

481 ms

skin.css

skin.css

381 ms

modernizr.js

modernizr.js

57 ms

share42.js

share42.js

631 ms

custom.js

custom.js

692 ms

jRating.jquery.js

jRating.jquery.js

782 ms

zp.js

zp.js

779 ms

top100.jcn

top100.jcn

841 ms

3_1_FFFFFFFF_EFEFEFFF_0_pageviews

3_1_FFFFFFFF_EFEFEFFF_0_pageviews

676 ms

manyweb_ru.gif

manyweb_ru.gif

983 ms

back-total.jpg

back-total.jpg

772 ms

logo.png

logo.png

861 ms

star.png

star.png

961 ms

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1068 ms

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1167 ms

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1267 ms

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1364 ms

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1616 ms

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1761 ms

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1861 ms

booksonline-twitter.jpg

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1961 ms

booksonline-insta.jpg

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2060 ms

booksonline-vk.jpg

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2158 ms

booksonline-ok.jpg

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2260 ms

RSS-feed-icon-booksonline.png

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2360 ms

subscribe-now-booksonline.png

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2460 ms

2.jpg

2.jpg

2650 ms

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2660 ms

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2758 ms

Chitat-knigu-Lindsey-Dzhoanna-Kogda-lyubov-zhdet-61696.jpg

Chitat-knigu-Lindsey-Dzhoanna-Kogda-lyubov-zhdet-61696.jpg

2859 ms

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2959 ms

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3061 ms

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3161 ms

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3259 ms

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3357 ms

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3457 ms

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3557 ms

pubads_impl.js

pubads_impl.js

12 ms

show_ads_impl.js

show_ads_impl.js

231 ms

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Chitat-knigu-Berd-Zhaklin-Na-vsekh-parusakh-75809.jpg

3493 ms

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Chitat-knigu-Dzheyms-Eloiza-Vlyublennaya-gertsoginya-86242.jpg

3585 ms

Chitat-knigu-Volkov-Aleksandr-Volshebnik-Izumrudnogo-goroda-64567.jpg

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3602 ms

Chitat-knigu-Khauell-Khanna-Besstrashnyy-gorets-79257.jpg

Chitat-knigu-Khauell-Khanna-Besstrashnyy-gorets-79257.jpg

3600 ms

zrt_lookup.html

zrt_lookup.html

83 ms

ads

ads

530 ms

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3525 ms

ads

ads

438 ms

ads

ads

375 ms

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ads

227 ms

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3574 ms

ads

ads

336 ms

ads

ads

368 ms

ads

ads

430 ms

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ads

632 ms

ads

ads

409 ms

watch.js

watch.js

2 ms

version.js

version.js

157 ms

s

s

33 ms

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Chitat-knigu-Anderson-Evangelina-Sdelka-s-dyavolom-128173.jpg

3598 ms

watch.js

watch.js

0 ms

code.js

code.js

273 ms

counter2

counter2

386 ms

hit

hit

827 ms

analytics.js

analytics.js

48 ms

assets.js

assets.js

60 ms

hit

hit

818 ms

loader.js

loader.js

822 ms

ads

ads

494 ms

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3590 ms

collect

collect

12 ms

D4E54B.js

D4E54B.js

979 ms

js

js

46 ms

Chitat-knigu-Berd-Zhaklin-Sitsiliyskiy-revnivets-75815.jpg

Chitat-knigu-Berd-Zhaklin-Sitsiliyskiy-revnivets-75815.jpg

3599 ms

sync-loader.js

sync-loader.js

854 ms

dyn-goal-config.js

dyn-goal-config.js

197 ms

counter

counter

245 ms

search2.png

search2.png

3599 ms

manyweb_ru.gif

manyweb_ru.gif

358 ms

reactive_library.js

reactive_library.js

148 ms

ca-pub-6016515604624988

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89 ms

bg-head3.jpg

bg-head3.jpg

3569 ms

previous.png

previous.png

3564 ms

ads

ads

398 ms

ads

ads

388 ms

ads

ads

302 ms

next.png

next.png

3568 ms

load_preloaded_resource.js

load_preloaded_resource.js

54 ms

abg_lite.js

abg_lite.js

57 ms

s

s

41 ms

window_focus.js

window_focus.js

65 ms

qs_click_protection.js

qs_click_protection.js

72 ms

ufs_web_display.js

ufs_web_display.js

42 ms

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62 ms

fullscreen_api_adapter.js

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61 ms

interstitial_ad_frame.js

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60 ms

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215 ms

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225 ms

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30 ms

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288 ms

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289 ms

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down_arrow_select.jpg

3598 ms

css

css

174 ms

version.js

version.js

147 ms

ui.totop.png

ui.totop.png

3447 ms

icons.png

icons.png

3538 ms

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10 ms

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15 ms

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23 ms

stars.png

stars.png

3594 ms

getsaleModule.js

getsaleModule.js

284 ms

comm.html

comm.html

143 ms

check

check

152 ms

cke

cke

174 ms

cookie

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142 ms

imp

imp

141 ms

callback

callback

270 ms

check

check

381 ms

sodar

sodar

70 ms

tracker

tracker

127 ms

impression.html

impression.html

142 ms

extra.js

extra.js

283 ms

sodar2.js

sodar2.js

4 ms

runner.html

runner.html

5 ms

aframe

aframe

22 ms

Accessibility Review

booksonline.com.ua accessibility score

75

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.

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

booksonline.com.ua best practices score

50

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

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

booksonline.com.ua SEO score

80

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

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

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

    RU

  • Language Claimed

    RU

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Booksonline.com.ua can be misinterpreted by Google and other search engines. Our service has detected that Russian is used on the page, and it matches the claimed language. Our system also found out that Booksonline.com.ua 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

booksonline.com.ua

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