Tools & Wizards About Us
librousse.bg screenshot

Report Summary

  • 16

    Performance

    Renders faster than
    30% of other websites

  • 56

    Accessibility

    Visual factors better than
    that of 24% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 84

    SEO

    Google-friendlier than
    52% of websites

librousse.bg

Онлайн Книжарница: Нови книги, учебници и пособия | Ozone.bg | Ozone.bg

Page Load Speed

5.5 sec in total

First Response

140 ms

Resources Loaded

4.4 sec

Page Rendered

1 sec

librousse.bg screenshot

About Website

Visit librousse.bg now to see the best up-to-date Librousse content and also check out these interesting facts you probably never knew about librousse.bg

Разгледай ➤ Онлайн книжарницата ➤ на Ozone.bg ✔ Огромен избор от новоизлезли книги ✔ Всичко за ученика ✔ Промоции ✔ Бърза доставка и 24/7 помощ при покупка.

Visit librousse.bg

Key Findings

We analyzed Librousse.bg page load time and found that the first response time was 140 ms and then it took 5.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.

Performance Metrics

librousse.bg performance score

16

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.4 s

6/100

10%

LCP (Largest Contentful Paint)

Value25.9 s

0/100

25%

SI (Speed Index)

Value19.7 s

0/100

10%

TBT (Total Blocking Time)

Value7,540 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.032

100/100

15%

TTI (Time to Interactive)

Value36.7 s

0/100

10%

Network Requests Diagram

librousse.bg

140 ms

690 ms

widget.js

29 ms

product_onsale_label.css

69 ms

category_onsale_label.css

35 ms

Our browser made a total of 252 requests to load all elements on the main page. We found that 0% of them (1 request) were addressed to the original Librousse.bg, 55% (139 requests) were made to Cdn.ozone.bg and 37% (94 requests) were made to Ozone.bg. The less responsive or slowest element that took the longest time to load (1.2 sec) relates to the external source Cdn.ozone.bg.

Page Optimization Overview & Recommendations

Page size can be reduced by 2.6 MB (35%)

Content Size

7.6 MB

After Optimization

4.9 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Librousse.bg main page is 7.6 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. Only a small number of websites need less resources to load. Images take 4.2 MB which makes up the majority of the site volume.

HTML Optimization

-93%

Potential reduce by 2.4 MB

  • Original 2.5 MB
  • After minification 1.4 MB
  • After compression 169.2 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 1.1 MB, which is 43% 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 2.4 MB or 93% of the original size.

Image Optimization

-2%

Potential reduce by 103.5 kB

  • Original 4.2 MB
  • After minification 4.1 MB

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. Librousse images are well optimized though.

JavaScript Optimization

-20%

Potential reduce by 148.5 kB

  • Original 727.6 kB
  • After minification 726.5 kB
  • After compression 579.1 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 148.5 kB or 20% of the original size.

CSS Optimization

-11%

Potential reduce by 11.9 kB

  • Original 112.1 kB
  • After minification 112.1 kB
  • After compression 100.2 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. Librousse.bg needs all CSS files to be minified and compressed as it can save up to 11.9 kB or 11% of the original size.

Requests Breakdown

Number of requests can be reduced by 73 (32%)

Requests Now

229

After Optimization

156

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 229 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Librousse. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 55 to 1 for JavaScripts and from 20 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

librousse.bg

librousse.bg

140 ms

690 ms

widget.js

widget.js

29 ms

product_onsale_label.css

product_onsale_label.css

69 ms

category_onsale_label.css

category_onsale_label.css

35 ms

ambanners.css

ambanners.css

50 ms

amlabel.css

amlabel.css

34 ms

layer.css

layer.css

37 ms

ajaxaddtocart.css

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49 ms

cookielaw.css

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54 ms

bootstrap.min.css

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57 ms

style.css

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71 ms

colorbox.css

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90 ms

jquery.qtip.min.css

jquery.qtip.min.css

92 ms

jquery.jscrollpane.css

jquery.jscrollpane.css

95 ms

owl.carousel.min.css

owl.carousel.min.css

240 ms

animate.css

animate.css

93 ms

slick.css

slick.css

95 ms

chosen.min.css

chosen.min.css

120 ms

all.min.css

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105 ms

prototype.js

prototype.js

124 ms

ccard.js

ccard.js

114 ms

validation.js

validation.js

123 ms

builder.js

builder.js

139 ms

effects.js

effects.js

301 ms

dragdrop.js

dragdrop.js

149 ms

controls.js

controls.js

146 ms

slider.js

slider.js

166 ms

js.js

js.js

306 ms

form.js

form.js

165 ms

menu.js

menu.js

186 ms

translate.js

translate.js

198 ms

cookies.js

cookies.js

207 ms

onsale.js

onsale.js

215 ms

injector.js

injector.js

229 ms

amlabel_observer.js

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238 ms

amlabel_height.js

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249 ms

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258 ms

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87 ms

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88 ms

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906 ms

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knizhka-za-otsvetyavane--zhirafi-v-gradinata-veseli-stihcheta-20.jpg

896 ms

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chervenata-shapchitsa-izdatelstvo-ina-20.jpg

894 ms

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svarzhi-i-otsveti--zhivotnite-v-moreto-20.jpg

788 ms

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potavane-20.jpg

788 ms

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moite-parvi-umeniya--kakvo-reshavash--bea--2---3-godini-20.jpg

872 ms

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da-probudish-geroite-v-teb-meki-koritsi-20.jpg

788 ms

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knizhka-za-otsvetyavane--patuvane-2--stikeri-20.jpg

787 ms

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da-probudish-geroite-v-teb-tvardi-koritsi-20.jpg

870 ms

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dinozavri-kniga-s-igri-s-obemni-stikeri-20.jpg

791 ms

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moite-parvi-umeniya--ne-barzay--edi!-2---3-godini-20.jpg

791 ms

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maychin-instinkt-20.jpg

772 ms

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voyna-i-nakazanie-20.jpg

946 ms

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787 ms

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komplekt-tabla-po-himiya-i-opazvane-na-okolnata-sreda-za-7-klas--metali--nemetali--alkalna-grupa--osnovi-i-kiselini-uchebna-programa-2024-2025-klet-20.jpg

947 ms

tablo-po-biologiya-i-zdravno-obrazovanie-za-7-klas--podotdel-pokritosemenni-tsvetni-rasteniya-uchebna-programa-2024-2025-klet-20.jpg

tablo-po-biologiya-i-zdravno-obrazovanie-za-7-klas--podotdel-pokritosemenni-tsvetni-rasteniya-uchebna-programa-2024-2025-klet-20.jpg

803 ms

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izbrani-prikazki-ot-angel-karaliychev-pan---tvardi-koritsi-20.jpg

642 ms

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800 ms

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799 ms

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799 ms

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796 ms

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719 ms

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778 ms

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769 ms

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784 ms

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772 ms

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789 ms

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920 ms

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916 ms

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834 ms

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758 ms

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889 ms

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790 ms

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791 ms

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1184 ms

load

load

157 ms

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584 ms

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675 ms

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585 ms

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584 ms

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673 ms

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688 ms

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691 ms

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703 ms

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618 ms

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600 ms

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visa.png

617 ms

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614 ms

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0new.png

612 ms

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artboard_1.png

621 ms

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0posledni_broiki.png

621 ms

0preorder.png

0preorder.png

625 ms

c.gif

c.gif

7 ms

Accessibility Review

librousse.bg accessibility score

56

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

[aria-*] attributes do not match their roles

High

button, link, and menuitem elements do not have accessible names.

High

[aria-hidden="true"] elements contain focusable descendents

High

ARIA input fields do not have accessible names

High

Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.

High

[role]s are not contained by their required parent element

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

librousse.bg best practices score

67

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

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

SEO Factors

librousse.bg SEO score

84

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

    BG

  • Language Claimed

    BG

  • Encoding

    UTF-8

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

librousse.bg

Open Graph data is detected on the main page of Librousse. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: