Tools & Wizards About Us
zadania.info screenshot

Report Summary

  • 21

    Performance

    Renders faster than
    39% of other websites

  • 82

    Accessibility

    Visual factors better than
    that of 54% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 77

    SEO

    Google-friendlier than
    36% of websites

zadania.info

Zadania.info: zadania z matematyki, największy internetowy zbiór zadań

Page Load Speed

3.1 sec in total

First Response

266 ms

Resources Loaded

2.4 sec

Page Rendered

376 ms

zadania.info screenshot

About Website

Click here to check amazing Zadania content for Poland. Otherwise, check out these important facts you probably never knew about zadania.info

Ponad 15 tysięcy zadań z matematyki z rozwiązaniami. Zadania maturalne, egzamin ósmoklasisty, egzamin gimnazjalny, próbne matury, sprawdziany, konkursy, olimpiada, poradniki

Visit zadania.info

Key Findings

We analyzed Zadania.info page load time and found that the first response time was 266 ms and then it took 2.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

zadania.info performance score

21

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.7 s

60/100

10%

LCP (Largest Contentful Paint)

Value5.9 s

14/100

25%

SI (Speed Index)

Value6.7 s

36/100

10%

TBT (Total Blocking Time)

Value4,920 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.254

49/100

15%

TTI (Time to Interactive)

Value15.4 s

7/100

10%

Network Requests Diagram

zadania.info

266 ms

www.zadania.info

422 ms

MstyleC.css

88 ms

jquery-1.10.2.js

263 ms

MscriptC.js

175 ms

Our browser made a total of 142 requests to load all elements on the main page. We found that 44% of them (63 requests) were addressed to the original Zadania.info, 5% (7 requests) were made to Apis.google.com and 4% (6 requests) were made to Pagead2.googlesyndication.com. The less responsive or slowest element that took the longest time to load (975 ms) belongs to the original domain Zadania.info.

Page Optimization Overview & Recommendations

Page size can be reduced by 539.8 kB (37%)

Content Size

1.5 MB

After Optimization

929.4 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Zadania.info main page is 1.5 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. 70% of websites need less resources to load. Images take 692.1 kB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 46.1 kB

  • Original 59.3 kB
  • After minification 56.9 kB
  • After compression 13.2 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. 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 46.1 kB or 78% of the original size.

Image Optimization

-4%

Potential reduce by 25.7 kB

  • Original 692.1 kB
  • After minification 666.4 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. Zadania images are well optimized though.

JavaScript Optimization

-65%

Potential reduce by 447.9 kB

  • Original 691.3 kB
  • After minification 681.6 kB
  • After compression 243.4 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 447.9 kB or 65% of the original size.

CSS Optimization

-76%

Potential reduce by 20.1 kB

  • Original 26.5 kB
  • After minification 26.5 kB
  • After compression 6.5 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. Zadania.info needs all CSS files to be minified and compressed as it can save up to 20.1 kB or 76% of the original size.

Requests Breakdown

Number of requests can be reduced by 74 (54%)

Requests Now

137

After Optimization

63

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 137 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Zadania. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 41 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

zadania.info

zadania.info

266 ms

www.zadania.info

www.zadania.info

422 ms

MstyleC.css

MstyleC.css

88 ms

jquery-1.10.2.js

jquery-1.10.2.js

263 ms

MscriptC.js

MscriptC.js

175 ms

MathJax.js

MathJax.js

13 ms

cookieconsent.latest.min.js

cookieconsent.latest.min.js

20 ms

widget.js

widget.js

463 ms

show_ads.js

show_ads.js

5 ms

pl.js

pl.js

37 ms

TeX-AMS-MML_HTMLorMML.js

TeX-AMS-MML_HTMLorMML.js

37 ms

baner.jpg

baner.jpg

86 ms

napis.gif

napis.gif

91 ms

napisD.gif

napisD.gif

89 ms

rejestracja.gif

rejestracja.gif

173 ms

forum.gif

forum.gif

175 ms

szukaj.gif

szukaj.gif

176 ms

help.gif

help.gif

200 ms

cor_main_tl.png

cor_main_tl.png

200 ms

cor_main_tr.png

cor_main_tr.png

198 ms

but_3.gif

but_3.gif

294 ms

bullet_1.png

bullet_1.png

294 ms

but_4.gif

but_4.gif

294 ms

but_5.gif

but_5.gif

301 ms

but_6.gif

but_6.gif

299 ms

ubuntu.png

ubuntu.png

300 ms

cor_bot_menu.png

cor_bot_menu.png

410 ms

feed-icon.png

feed-icon.png

411 ms

feed-icon1.png

feed-icon1.png

409 ms

kostki_2.gif

kostki_2.gif

409 ms

obr.png

obr.png

510 ms

obr.png

obr.png

514 ms

obr.png

obr.png

513 ms

obr.png

obr.png

511 ms

obr.png

obr.png

510 ms

obr.png

obr.png

550 ms

obr.png

obr.png

715 ms

obr.png

obr.png

715 ms

obr.png

obr.png

710 ms

obr.png

obr.png

603 ms

obr.png

obr.png

599 ms

obr.png

obr.png

728 ms

obr.png

obr.png

775 ms

obr.png

obr.png

713 ms

obr.png

obr.png

955 ms

obr.png

obr.png

954 ms

obr.png

obr.png

939 ms

obr.png

obr.png

880 ms

obr.png

obr.png

875 ms

obr.png

obr.png

931 ms

locate.js

locate.js

397 ms

Vf42sNx5IZbiZjt.js

Vf42sNx5IZbiZjt.js

140 ms

Admeta.js

Admeta.js

11 ms

jquery.min.js

jquery.min.js

131 ms

dc.js

dc.js

54 ms

all.js

all.js

60 ms

obr.png

obr.png

932 ms

obr.png

obr.png

975 ms

ca-pub-3789936144141693.js

ca-pub-3789936144141693.js

114 ms

zrt_lookup.html

zrt_lookup.html

110 ms

show_ads_impl.js

show_ads_impl.js

47 ms

obr.png

obr.png

954 ms

obr.png

obr.png

905 ms

but_1a.gif

but_1a.gif

903 ms

cor_cont_topL.png

cor_cont_topL.png

932 ms

ga.js

ga.js

79 ms

ads

ads

251 ms

cor_cont_topR.png

cor_cont_topR.png

877 ms

cor_innNews_TL.png

cor_innNews_TL.png

883 ms

cor_innNews_TR.png

cor_innNews_TR.png

872 ms

cor_innNews_BL.png

cor_innNews_BL.png

894 ms

cor_innNews_BR.png

cor_innNews_BR.png

927 ms

osd.js

osd.js

60 ms

123 ms

__utm.gif

__utm.gif

88 ms

plusone.js

plusone.js

201 ms

NavBar.gif

NavBar.gif

866 ms

ads

ads

294 ms

xd_arbiter.php

xd_arbiter.php

139 ms

xd_arbiter.php

xd_arbiter.php

148 ms

JSAdservingMP.ashx

JSAdservingMP.ashx

34 ms

cor_NavBar_TL.png

cor_NavBar_TL.png

910 ms

cor_NavBar_TR.png

cor_NavBar_TR.png

909 ms

cor_NavBar_BL.png

cor_NavBar_BL.png

912 ms

cor_NavBar_BR.png

cor_NavBar_BR.png

912 ms

creation_144440.jpg

creation_144440.jpg

206 ms

__utm.gif

__utm.gif

49 ms

__utm.gif

__utm.gif

34 ms

102 ms

adj

adj

133 ms

like.php

like.php

91 ms

beacon

beacon

95 ms

cor_cont_botL.png

cor_cont_botL.png

809 ms

cor_cont_botR.png

cor_cont_botR.png

809 ms

cb=gapi.loaded_0

cb=gapi.loaded_0

23 ms

cb=gapi.loaded_1

cb=gapi.loaded_1

67 ms

fastbutton

fastbutton

131 ms

dJKZ2Fe5iTc.js

dJKZ2Fe5iTc.js

170 ms

LVx-xkvaJ0b.png

LVx-xkvaJ0b.png

191 ms

61 ms

0

0

170 ms

pixel

pixel

102 ms

postmessageRelay

postmessageRelay

136 ms

lidar.js

lidar.js

72 ms

sbhK2lTE.js

sbhK2lTE.js

142 ms

abg.js

abg.js

129 ms

m_js_controller.js

m_js_controller.js

300 ms

googlelogo_color_112x36dp.png

googlelogo_color_112x36dp.png

327 ms

15604023391667722868

15604023391667722868

332 ms

dvbs_src.js

dvbs_src.js

158 ms

verify_selector.js

verify_selector.js

432 ms

blank.gif

blank.gif

430 ms

bapi

bapi

290 ms

cb=gapi.loaded_0

cb=gapi.loaded_0

71 ms

cb=gapi.loaded_1

cb=gapi.loaded_1

69 ms

W5F8_SL0XFawnjxHGsZjJA.ttf

W5F8_SL0XFawnjxHGsZjJA.ttf

324 ms

pixel

pixel

281 ms

api.js

api.js

197 ms

core:rpc:shindig.random:shindig.sha1.js

core:rpc:shindig.random:shindig.sha1.js

322 ms

2536007149-postmessagerelay.js

2536007149-postmessagerelay.js

321 ms

redot.gif

redot.gif

225 ms

cTrvNaRi.html

cTrvNaRi.html

206 ms

x_button_blue2.png

x_button_blue2.png

197 ms

s

s

192 ms

redir.html

redir.html

267 ms

bst2tv3.html

bst2tv3.html

198 ms

verify.js

verify.js

213 ms

MdyApZkAHG2-UELdOwjNjjFZXSz-CGj4o1JtDR7aGgs.js

MdyApZkAHG2-UELdOwjNjjFZXSz-CGj4o1JtDR7aGgs.js

24 ms

iframe.html

iframe.html

25 ms

adServer.bs

adServer.bs

51 ms

sd

sd

28 ms

backup.jpg

backup.jpg

140 ms

verifyr.js

verifyr.js

34 ms

beacon.js

beacon.js

99 ms

dbapi

dbapi

32 ms

0

0

22 ms

bg.png

bg.png

55 ms

adchoices.en.png

adchoices.en.png

81 ms

dt

dt

75 ms

MPrintStyle.css

MPrintStyle.css

92 ms

dt

dt

72 ms

m

m

25 ms

Accessibility Review

zadania.info accessibility score

82

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

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

Best Practices

zadania.info best practices score

75

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

zadania.info SEO score

77

Search Engine Optimization Advices

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 Zadania.info 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 Zadania.info 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

zadania.info

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