Tools & Wizards About Us
libooks.org screenshot

Report Summary

  • 20

    Performance

    Renders faster than
    37% of other websites

  • 55

    Accessibility

    Visual factors better than
    that of 23% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 92

    SEO

    Google-friendlier than
    74% of websites

libooks.org

Page Load Speed

8.1 sec in total

First Response

526 ms

Resources Loaded

6.1 sec

Page Rendered

1.4 sec

libooks.org screenshot

About Website

Click here to check amazing Libooks content. Otherwise, check out these important facts you probably never knew about libooks.org

Доска объявлений о покупке, продаже, аренде и услугах от частных лиц и организаций с фото, ценами и описаниями на сайте nado info

Visit libooks.org

Key Findings

We analyzed Libooks.org page load time and found that the first response time was 526 ms and then it took 7.5 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

libooks.org performance score

20

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.3 s

41/100

10%

LCP (Largest Contentful Paint)

Value10.0 s

0/100

25%

SI (Speed Index)

Value10.1 s

9/100

10%

TBT (Total Blocking Time)

Value3,910 ms

1/100

30%

CLS (Cumulative Layout Shift)

Value0.074

95/100

15%

TTI (Time to Interactive)

Value20.0 s

2/100

10%

Network Requests Diagram

libooks.org

526 ms

nado.info

1132 ms

css2

37 ms

hiddenBotOpenLink.js

580 ms

a9c37ce.js

18 ms

Our browser made a total of 55 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Libooks.org, 76% (42 requests) were made to Nado.info and 5% (3 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (4.1 sec) relates to the external source Nado.info.

Page Optimization Overview & Recommendations

Page size can be reduced by 503.4 kB (47%)

Content Size

1.1 MB

After Optimization

556.7 kB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Libooks.org main page is 1.1 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. 70% of websites need less resources to load. HTML takes 604.8 kB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 487.1 kB

  • Original 604.8 kB
  • After minification 601.1 kB
  • After compression 117.7 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. 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 487.1 kB or 81% of the original size.

Image Optimization

-4%

Potential reduce by 12.1 kB

  • Original 321.8 kB
  • After minification 309.7 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. Libooks images are well optimized though.

JavaScript Optimization

-3%

Potential reduce by 4.1 kB

  • Original 133.4 kB
  • After minification 133.4 kB
  • After compression 129.3 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.

Requests Breakdown

Number of requests can be reduced by 17 (35%)

Requests Now

49

After Optimization

32

  • Images
  • JavaScript
  • CSS

The browser has sent 49 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Libooks. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 18 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

libooks.org

libooks.org

526 ms

nado.info

nado.info

1132 ms

css2

css2

37 ms

hiddenBotOpenLink.js

hiddenBotOpenLink.js

580 ms

a9c37ce.js

a9c37ce.js

18 ms

524a12c.js

524a12c.js

766 ms

8648e85.js

8648e85.js

36 ms

e8ec5f5.js

e8ec5f5.js

653 ms

2e545d4.js

2e545d4.js

34 ms

c9b852b.js

c9b852b.js

27 ms

3dc5e51.js

3dc5e51.js

42 ms

b6f5dd5.js

b6f5dd5.js

46 ms

b77a6f9.js

b77a6f9.js

859 ms

gtm.js

gtm.js

312 ms

tag.js

tag.js

2328 ms

openapi.js

openapi.js

2201 ms

fbevents.js

fbevents.js

239 ms

logo.dbd7f3c.svg

logo.dbd7f3c.svg

149 ms

kz.be4e502.svg

kz.be4e502.svg

2056 ms

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2108 ms

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2108 ms

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2107 ms

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578 ms

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2108 ms

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2034 ms

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2108 ms

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2106 ms

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2643 ms

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2698 ms

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2670 ms

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2764 ms

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2645 ms

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2773 ms

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3216 ms

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3192 ms

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3398 ms

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3253 ms

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3475 ms

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3402 ms

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3649 ms

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3702 ms

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3823 ms

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3970 ms

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4022 ms

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4094 ms

iphone.2a8fc8d.png

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3665 ms

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124 ms

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125 ms

UcCO3FwrK3iLTeHuS_fvQtMwCp50KnMw2boKoduKmMEVuFuYMZg.ttf

UcCO3FwrK3iLTeHuS_fvQtMwCp50KnMw2boKoduKmMEVuFuYMZg.ttf

125 ms

conversion_async.js

conversion_async.js

58 ms

21 ms

128 ms

1541 ms

6474fb6.js

6474fb6.js

2159 ms

8554ec7.js

8554ec7.js

1676 ms

Accessibility Review

libooks.org accessibility score

55

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

Buttons do not have an accessible name

High

Image elements do not have [alt] attributes

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.

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

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

libooks.org best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

libooks.org SEO score

92

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

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

    ID

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Libooks.org can be misinterpreted by Google and other search engines. Our service has detected that 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 Libooks.org 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

libooks.org

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