Tools & Wizards About Us
inforbook.pl screenshot

Report Summary

  • 1

    Performance

    Renders faster than
    19% of other websites

  • 81

    Accessibility

    Visual factors better than
    that of 51% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 92

    SEO

    Google-friendlier than
    74% of websites

inforbook.pl

Księgarnia internetowa INFOR.pl - Sklep.infor.pl

Page Load Speed

6.7 sec in total

First Response

1.6 sec

Resources Loaded

5 sec

Page Rendered

137 ms

inforbook.pl screenshot

About Website

Welcome to inforbook.pl homepage info - get ready to check INFOR Book best content right away, or after learning these important things about inforbook.pl

Księgarnia internetowa INFOR.pl to książki, ebooki, serwisy specjalistycze dla księgowych, prawników, kadrowych oraz czasopisma z zakresu prawa, podatków, finansów, ubezpieczeń i zarządzania, kadry, k...

Visit inforbook.pl

Key Findings

We analyzed Inforbook.pl page load time and found that the first response time was 1.6 sec and then it took 5.1 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

inforbook.pl performance score

1

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value9.9 s

0/100

10%

LCP (Largest Contentful Paint)

Value42.6 s

0/100

25%

SI (Speed Index)

Value23.8 s

0/100

10%

TBT (Total Blocking Time)

Value3,440 ms

2/100

30%

CLS (Cumulative Layout Shift)

Value0.823

4/100

15%

TTI (Time to Interactive)

Value48.9 s

0/100

10%

Network Requests Diagram

sklep.infor.pl

1553 ms

icon

38 ms

hfh4jbg.css

44 ms

jquery-ui.min.css

309 ms

bootstrap.min.css

410 ms

Our browser made a total of 142 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original Inforbook.pl, 6% (9 requests) were made to Use.typekit.net and 4% (5 requests) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (1.6 sec) relates to the external source Sklep.infor.pl.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.8 MB (18%)

Content Size

9.5 MB

After Optimization

7.8 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Inforbook.pl main page is 9.5 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 8.1 MB which makes up the majority of the site volume.

HTML Optimization

-88%

Potential reduce by 422.7 kB

  • Original 479.8 kB
  • After minification 426.5 kB
  • After compression 57.1 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 53.3 kB, which is 11% 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 422.7 kB or 88% of the original size.

Image Optimization

-11%

Potential reduce by 899.7 kB

  • Original 8.1 MB
  • After minification 7.2 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. Obviously, INFOR Book needs image optimization as it can save up to 899.7 kB or 11% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-45%

Potential reduce by 394.6 kB

  • Original 886.8 kB
  • After minification 879.8 kB
  • After compression 492.1 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 394.6 kB or 45% of the original size.

CSS Optimization

-55%

Potential reduce by 44.3 kB

  • Original 79.9 kB
  • After minification 52.6 kB
  • After compression 35.6 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. Inforbook.pl needs all CSS files to be minified and compressed as it can save up to 44.3 kB or 55% of the original size.

Requests Breakdown

Number of requests can be reduced by 57 (44%)

Requests Now

131

After Optimization

74

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 131 CSS, Javascripts, AJAX and image requests in order to completely render the main page of INFOR Book. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 38 to 1 for JavaScripts and from 10 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

sklep.infor.pl

sklep.infor.pl

1553 ms

icon

icon

38 ms

hfh4jbg.css

hfh4jbg.css

44 ms

jquery-ui.min.css

jquery-ui.min.css

309 ms

bootstrap.min.css

bootstrap.min.css

410 ms

owl.carousel.min.css

owl.carousel.min.css

308 ms

owl.theme.default.css

owl.theme.default.css

318 ms

select2.min.css

select2.min.css

318 ms

styles.css

styles.css

514 ms

_styles.css

_styles.css

415 ms

jquery-3.6.0.min.js

jquery-3.6.0.min.js

24 ms

jquery-ui.min.js

jquery-ui.min.js

635 ms

bootstrap.min.js

bootstrap.min.js

542 ms

owl.carousel.min.js

owl.carousel.min.js

511 ms

select2.min.js

select2.min.js

540 ms

scripts.js

scripts.js

541 ms

tools.js

tools.js

614 ms

validation.js

validation.js

616 ms

googleAnaliticsTools.js

googleAnaliticsTools.js

616 ms

elasticBase.js

elasticBase.js

616 ms

elasticQuickSearch.js

elasticQuickSearch.js

665 ms

gpt.js

gpt.js

178 ms

icmp-main-2.0.bundle.js

icmp-main-2.0.bundle.js

540 ms

p.css

p.css

21 ms

WebResource.axd

WebResource.axd

433 ms

ScriptResource.axd

ScriptResource.axd

433 ms

ScriptResource.axd

ScriptResource.axd

433 ms

dc.js

dc.js

81 ms

main_logo.png

main_logo.png

187 ms

closePopup.png

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187 ms

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491 ms

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190 ms

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190 ms

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1236 ms

ustawa_o_rachunkowosci_2024_400x400.png

ustawa_o_rachunkowosci_2024_400x400.png

1288 ms

pubads_impl.js

pubads_impl.js

225 ms

gtm.js

gtm.js

223 ms

ifk2_400x400.png

ifk2_400x400.png

1237 ms

praca_zdalna%20plus%20plakat_400x400.png

praca_zdalna%20plus%20plakat_400x400.png

1296 ms

kodeks_pracy-terminarz_400x400.png

kodeks_pracy-terminarz_400x400.png

1294 ms

inforleVAT_2024_400x400.png

inforleVAT_2024_400x400.png

1281 ms

inpage_linkid.js

inpage_linkid.js

266 ms

400x400_eDGP-PiZ.PNG

400x400_eDGP-PiZ.PNG

1175 ms

d

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17 ms

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302 ms

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210 ms

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211 ms

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210 ms

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211 ms

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302 ms

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212 ms

flUhRq6tzZclQEJ-Vdg-IuiaDsNZ.ttf

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303 ms

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1214 ms

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1203 ms

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1279 ms

tracking.js

tracking.js

212 ms

event_bus

event_bus

725 ms

ads

ads

427 ms

container.html

container.html

134 ms

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986 ms

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984 ms

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978 ms

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1020 ms

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1027 ms

js

js

111 ms

js

js

509 ms

destination

destination

430 ms

destination

destination

432 ms

bat.js

bat.js

276 ms

sdk.js

sdk.js

98 ms

uwt.js

uwt.js

268 ms

insight.min.js

insight.min.js

270 ms

popups.js

popups.js

830 ms

sm.js

sm.js

1065 ms

analytics.min.js

analytics.min.js

374 ms

track.js

track.js

268 ms

__utm.gif

__utm.gif

41 ms

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973 ms

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976 ms

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980 ms

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963 ms

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992 ms

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1001 ms

sdk.js

sdk.js

172 ms

ga-audiences

ga-audiences

326 ms

316 ms

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780 ms

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784 ms

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782 ms

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788 ms

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813 ms

187009280.js

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201 ms

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781 ms

settings

settings

485 ms

adsct

adsct

200 ms

adsct

adsct

232 ms

187009280

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580 ms

adsct

adsct

166 ms

adsct

adsct

131 ms

eventBus.js

eventBus.js

283 ms

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636 ms

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637 ms

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648 ms

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646 ms

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651 ms

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677 ms

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682 ms

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683 ms

footerFb.png

footerFb.png

645 ms

instagram_icon.png

instagram_icon.png

676 ms

footerIn.png

footerIn.png

664 ms

footerTw.png

footerTw.png

664 ms

footerYt.png

footerYt.png

672 ms

clarity.js

clarity.js

7 ms

c.gif

c.gif

7 ms

Accessibility Review

inforbook.pl accessibility score

81

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

<frame> or <iframe> elements do not have a title

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

[id] attributes on active, focusable elements are not unique

Best Practices

inforbook.pl 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

Page has valid source maps

SEO Factors

inforbook.pl SEO score

92

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

Language and Encoding

  • Language Detected

    PL

  • Language Claimed

    PL

  • Encoding

    UTF-8

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

inforbook.pl

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