Tools & Wizards About Us
dlabystrzakow.pl screenshot

Report Summary

  • 20

    Performance

    Renders faster than
    37% of other websites

  • 80

    Accessibility

    Visual factors better than
    that of 49% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 90

    SEO

    Google-friendlier than
    68% of websites

dlabystrzakow.pl

Księgarnia dlabystrzakow.pl - praktyczne książki i poradniki

Page Load Speed

6.7 sec in total

First Response

429 ms

Resources Loaded

4.9 sec

Page Rendered

1.4 sec

dlabystrzakow.pl screenshot

About Website

Welcome to dlabystrzakow.pl homepage info - get ready to check Dlabystrzakow best content for Poland right away, or after learning these important things about dlabystrzakow.pl

Dla bystrzaków - polska edycja najpopularniejszej i najbardziej rozpoznawalnej na świecie serii poradników For Dummies. Seria Dla bystrzaków to niezbędnik każdego poszukiwacza wiedzy.

Visit dlabystrzakow.pl

Key Findings

We analyzed Dlabystrzakow.pl page load time and found that the first response time was 429 ms and then it took 6.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.

Performance Metrics

dlabystrzakow.pl performance score

20

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.9 s

10/100

10%

LCP (Largest Contentful Paint)

Value14.4 s

0/100

25%

SI (Speed Index)

Value14.9 s

1/100

10%

TBT (Total Blocking Time)

Value1,520 ms

13/100

30%

CLS (Cumulative Layout Shift)

Value0.007

100/100

15%

TTI (Time to Interactive)

Value18.1 s

3/100

10%

Network Requests Diagram

dlabystrzakow.pl

429 ms

dlabystrzakow.pl

1421 ms

uc.js

23 ms

build.css

894 ms

swiper-bundle.min.css

641 ms

Our browser made a total of 88 requests to load all elements on the main page. We found that 2% of them (2 requests) were addressed to the original Dlabystrzakow.pl, 85% (75 requests) were made to Static01.helion.com.pl and 2% (2 requests) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (1.4 sec) relates to the external source Static01.helion.com.pl.

Page Optimization Overview & Recommendations

Page size can be reduced by 353.8 kB (13%)

Content Size

2.7 MB

After Optimization

2.4 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Dlabystrzakow.pl main page is 2.7 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. Images take 1.9 MB which makes up the majority of the site volume.

HTML Optimization

-85%

Potential reduce by 257.6 kB

  • Original 303.0 kB
  • After minification 268.0 kB
  • After compression 45.4 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 35.1 kB, which is 12% 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 257.6 kB or 85% of the original size.

Image Optimization

-0%

Potential reduce by 3.1 kB

  • Original 1.9 MB
  • After minification 1.9 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. Dlabystrzakow images are well optimized though.

JavaScript Optimization

-23%

Potential reduce by 90.5 kB

  • Original 399.3 kB
  • After minification 399.3 kB
  • After compression 308.8 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 90.5 kB or 23% of the original size.

CSS Optimization

-4%

Potential reduce by 2.7 kB

  • Original 72.2 kB
  • After minification 72.2 kB
  • After compression 69.5 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. Dlabystrzakow.pl has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 19 (24%)

Requests Now

79

After Optimization

60

  • Images
  • JavaScript
  • CSS

The browser has sent 79 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Dlabystrzakow. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 12 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

dlabystrzakow.pl

dlabystrzakow.pl

429 ms

dlabystrzakow.pl

dlabystrzakow.pl

1421 ms

uc.js

uc.js

23 ms

build.css

build.css

894 ms

swiper-bundle.min.css

swiper-bundle.min.css

641 ms

build.js

build.js

1040 ms

js

js

62 ms

js

js

124 ms

jquery.jplayer.min.js

jquery.jplayer.min.js

793 ms

player5.min.js

player5.min.js

666 ms

player5-editio-main-page.css

player5-editio-main-page.css

665 ms

swiper-bundle.min.js

swiper-bundle.min.js

796 ms

jquery-ui.min.js

jquery-ui.min.js

989 ms

jquery-ui.min.css

jquery-ui.min.css

683 ms

conversion.js

conversion.js

83 ms

social_icon_facebook.svg

social_icon_facebook.svg

162 ms

social_icon_youtube.svg

social_icon_youtube.svg

162 ms

social_icon_instagram.svg

social_icon_instagram.svg

160 ms

pict.svg

pict.svg

289 ms

0b8b5b8ed4b041690c3364f17bc528ee.png

0b8b5b8ed4b041690c3364f17bc528ee.png

671 ms

1efbc891137ecd413ef8ff8a152904b0.png

1efbc891137ecd413ef8ff8a152904b0.png

388 ms

70d9b5b2012022246de287c4577a5c2a.png

70d9b5b2012022246de287c4577a5c2a.png

668 ms

bae57dcb1190f37441cee18c584cfa5b.png

bae57dcb1190f37441cee18c584cfa5b.png

669 ms

a106174f295a35a86849d89822fcbb17.png

a106174f295a35a86849d89822fcbb17.png

796 ms

e0a10604ebe731370143978099e8023c.png

e0a10604ebe731370143978099e8023c.png

543 ms

cybeb2.png

cybeb2.png

515 ms

gpwbys.png

gpwbys.png

642 ms

stab2v.png

stab2v.png

671 ms

szinby.png

szinby.png

770 ms

exppb2.png

exppb2.png

794 ms

jeswar.png

jeswar.png

797 ms

pobierz_dark.png

pobierz_dark.png

796 ms

coamb2.png

coamb2.png

798 ms

ciazb4.png

ciazb4.png

896 ms

temub4.png

temub4.png

921 ms

ele3vv.png

ele3vv.png

922 ms

zwzab3.png

zwzab3.png

922 ms

anfub2.png

anfub2.png

923 ms

scrub3.png

scrub3.png

924 ms

optydv.png

optydv.png

1023 ms

nakoby.png

nakoby.png

1047 ms

epvb5v.png

epvb5v.png

1049 ms

aseby4.png

aseby4.png

1050 ms

foreb2.png

foreb2.png

1049 ms

roniby.png

roniby.png

1051 ms

ekob3v.png

ekob3v.png

1149 ms

prinby.png

prinby.png

1174 ms

zaprob.png

zaprob.png

1176 ms

efzcb2.png

efzcb2.png

1177 ms

budby2.png

budby2.png

1151 ms

OpenSans-Regular.ttf

OpenSans-Regular.ttf

1152 ms

OpenSans-Bold.ttf

OpenSans-Bold.ttf

1121 ms

antebv.png

antebv.png

1151 ms

OpenSans-Light.ttf

OpenSans-Light.ttf

1271 ms

PAJJhLM6sSoWKfWCAAwDAjgbRAAB42mNgYGBkAIIbCZo5IPrmUn0hGA0AO8EFTQAA

PAJJhLM6sSoWKfWCAAwDAjgbRAAB42mNgYGBkAIIbCZo5IPrmUn0hGA0AO8EFTQAA

3 ms

all.js

all.js

117 ms

77 ms

43 ms

OpenSans-Semibold.ttf

OpenSans-Semibold.ttf

1372 ms

all.js

all.js

6 ms

105 ms

32 ms

OpenSans-ExtraBold.ttf

OpenSans-ExtraBold.ttf

1424 ms

hiszvv.png

hiszvv.png

799 ms

dikebv.png

dikebv.png

865 ms

exfob6.png

exfob6.png

789 ms

fra2vv.png

fra2vv.png

791 ms

gitb4v.png

gitb4v.png

867 ms

haopb4.png

haopb4.png

888 ms

hib2vv.png

hib2vv.png

890 ms

jakobv.png

jakobv.png

794 ms

javby7.png

javby7.png

869 ms

marafb.png

marafb.png

890 ms

nlpb3v.png

nlpb3v.png

906 ms

marafb.png

marafb.png

906 ms

devoby.png

devoby.png

992 ms

pro19b.png

pro19b.png

932 ms

treps4.png

treps4.png

908 ms

gotge2.png

gotge2.png

906 ms

rodzic.png

rodzic.png

907 ms

mentzz.png

mentzz.png

993 ms

zapsze.png

zapsze.png

1015 ms

taobys.png

taobys.png

917 ms

logo.svg

logo.svg

893 ms

dlabystrzakow-brak.png

dlabystrzakow-brak.png

893 ms

arrow-slider.svg

arrow-slider.svg

893 ms

partners_helion_group.png

partners_helion_group.png

993 ms

ico_czytalisek.png

ico_czytalisek.png

1015 ms

Accessibility Review

dlabystrzakow.pl accessibility score

80

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-hidden="true"] elements contain focusable descendents

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

High

Heading elements are not in a sequentially-descending order

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

Best Practices

dlabystrzakow.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

Page has valid source maps

SEO Factors

dlabystrzakow.pl SEO score

90

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

    PL

  • Language Claimed

    PL

  • Encoding

    ISO-8859-2

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Dlabystrzakow.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 Dlabystrzakow.pl main page’s claimed encoding is iso-8859-2. 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

dlabystrzakow.pl

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