Tools & Wizards About Us
profesor.pl screenshot

Report Summary

  • 35

    Performance

    Renders faster than
    55% of other websites

  • 67

    Accessibility

    Visual factors better than
    that of 32% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 62

    SEO

    Google-friendlier than
    23% of websites

profesor.pl

Profesor.pl - publikacje nauczycieli, awans zawodowy, scenariusze lekcji, wypracowania, testy, konspekty, korepetycje, matura, nauczyciele

Page Load Speed

4.6 sec in total

First Response

258 ms

Resources Loaded

4 sec

Page Rendered

309 ms

profesor.pl screenshot

About Website

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

Profesor.pl - serwis edukacyjny dla uczniów i nauczycieli. W serwisie m.in.: katalog, baza korepetycji, ćwiczenia, testy, egzamin, matura, wypracowania, forum, konspekty, scenariusze. Serwisy: nauczyc...

Visit profesor.pl

Key Findings

We analyzed Profesor.pl page load time and found that the first response time was 258 ms and then it took 4.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.

Performance Metrics

profesor.pl performance score

35

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.7 s

58/100

10%

LCP (Largest Contentful Paint)

Value3.6 s

60/100

25%

SI (Speed Index)

Value8.5 s

18/100

10%

TBT (Total Blocking Time)

Value2,990 ms

3/100

30%

CLS (Cumulative Layout Shift)

Value0.166

71/100

15%

TTI (Time to Interactive)

Value15.7 s

6/100

10%

Network Requests Diagram

profesor.pl

258 ms

profesor.pl

553 ms

styles.css

171 ms

jquery.min.js

29 ms

js

52 ms

Our browser made a total of 125 requests to load all elements on the main page. We found that 12% of them (15 requests) were addressed to the original Profesor.pl, 18% (23 requests) were made to Cm.g.doubleclick.net and 11% (14 requests) were made to Pagead2.googlesyndication.com. The less responsive or slowest element that took the longest time to load (1.5 sec) belongs to the original domain Profesor.pl.

Page Optimization Overview & Recommendations

Page size can be reduced by 163.7 kB (9%)

Content Size

1.8 MB

After Optimization

1.6 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Profesor.pl main page is 1.8 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. Javascripts take 915.6 kB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 38.0 kB

  • Original 48.2 kB
  • After minification 46.5 kB
  • After compression 10.2 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 38.0 kB or 79% of the original size.

Image Optimization

-2%

Potential reduce by 13.0 kB

  • Original 801.3 kB
  • After minification 788.3 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. Profesor images are well optimized though.

JavaScript Optimization

-12%

Potential reduce by 112.0 kB

  • Original 915.6 kB
  • After minification 902.2 kB
  • After compression 803.6 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 112.0 kB or 12% of the original size.

CSS Optimization

-19%

Potential reduce by 647 B

  • Original 3.4 kB
  • After minification 3.4 kB
  • After compression 2.8 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. Profesor.pl needs all CSS files to be minified and compressed as it can save up to 647 B or 19% of the original size.

Requests Breakdown

Number of requests can be reduced by 71 (66%)

Requests Now

107

After Optimization

36

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 107 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Profesor. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 33 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

profesor.pl

profesor.pl

258 ms

profesor.pl

profesor.pl

553 ms

styles.css

styles.css

171 ms

jquery.min.js

jquery.min.js

29 ms

js

js

52 ms

gpt.js

gpt.js

101 ms

adsbygoogle.js

adsbygoogle.js

147 ms

brand

brand

26 ms

adsbygoogle.js

adsbygoogle.js

305 ms

xgemius.js

xgemius.js

775 ms

brandjs.js

brandjs.js

16 ms

gtm.js

gtm.js

141 ms

watch.js

watch.js

124 ms

montessori-80-zabaw-z-dziecmi-.jpg

montessori-80-zabaw-z-dziecmi-.jpg

1484 ms

jak-wspierac-rozwoj-dziecka.jpg

jak-wspierac-rozwoj-dziecka.jpg

996 ms

gdy-emocje-biora-gore-jak-uczyc-dzieci-radzenia-sobie-z-trudnymi-uczuciami.jpg

gdy-emocje-biora-gore-jak-uczyc-dzieci-radzenia-sobie-z-trudnymi-uczuciami.jpg

963 ms

bg.jpg

bg.jpg

160 ms

logo_profesor1.png

logo_profesor1.png

380 ms

awans_new.png

awans_new.png

380 ms

dla_naucz.png

dla_naucz.png

510 ms

dla_ucz.png

dla_ucz.png

508 ms

england.png

england.png

510 ms

germany.png

germany.png

510 ms

spain.png

spain.png

510 ms

italy.png

italy.png

510 ms

france.png

france.png

617 ms

russia.png

russia.png

619 ms

mindfulness-trening-uwaznosci-jak-znalezc-spokoj-w-pedzacym-swiecie-ksiazka-mp3-z-medytacjami.jpg

mindfulness-trening-uwaznosci-jak-znalezc-spokoj-w-pedzacym-swiecie-ksiazka-mp3-z-medytacjami.jpg

972 ms

branding.png

branding.png

176 ms

pubads_impl.js

pubads_impl.js

149 ms

show_ads_impl.js

show_ads_impl.js

322 ms

js

js

128 ms

analytics.js

analytics.js

47 ms

collect

collect

63 ms

collect

collect

223 ms

ads

ads

166 ms

ads

ads

166 ms

container.html

container.html

166 ms

zrt_lookup.html

zrt_lookup.html

53 ms

ads

ads

465 ms

ads

ads

660 ms

ads

ads

131 ms

ads

ads

449 ms

fpdata.js

fpdata.js

113 ms

lsget.html

lsget.html

673 ms

reactive_library.js

reactive_library.js

204 ms

ca-pub-2479090950345537

ca-pub-2479090950345537

139 ms

13923231739124520032

13923231739124520032

68 ms

abg_lite.js

abg_lite.js

119 ms

s

s

32 ms

window_focus.js

window_focus.js

192 ms

cookie_push_onload.html

cookie_push_onload.html

33 ms

qs_click_protection.js

qs_click_protection.js

193 ms

ufs_web_display.js

ufs_web_display.js

65 ms

one_click_handler_one_afma.js

one_click_handler_one_afma.js

337 ms

icon.png

icon.png

31 ms

dpixel

dpixel

115 ms

i.match

i.match

158 ms

sn.ashx

sn.ashx

306 ms

3b0c1a1c8750041eb27603629860e89a.js

3b0c1a1c8750041eb27603629860e89a.js

171 ms

load_preloaded_resource.js

load_preloaded_resource.js

170 ms

f11bfab4e3c942216447974439595ef6.js

f11bfab4e3c942216447974439595ef6.js

308 ms

bbae3fd3506d8d9338f85d10ea9db8af.js

bbae3fd3506d8d9338f85d10ea9db8af.js

345 ms

ads

ads

662 ms

ads

ads

731 ms

i.match

i.match

500 ms

activeview

activeview

212 ms

pixel

pixel

178 ms

pixel

pixel

193 ms

pixel

pixel

202 ms

10274507596702807734

10274507596702807734

366 ms

bbcd6bf18c20baa1b2adeb195de9b551.js

bbcd6bf18c20baa1b2adeb195de9b551.js

59 ms

fullscreen_api_adapter.js

fullscreen_api_adapter.js

50 ms

interstitial_ad_frame.js

interstitial_ad_frame.js

61 ms

feedback_grey600_24dp.png

feedback_grey600_24dp.png

47 ms

settings_grey600_24dp.png

settings_grey600_24dp.png

46 ms

3b0c1a1c8750041eb27603629860e89a.js

3b0c1a1c8750041eb27603629860e89a.js

64 ms

f11bfab4e3c942216447974439595ef6.js

f11bfab4e3c942216447974439595ef6.js

68 ms

css

css

219 ms

pixel

pixel

104 ms

pixel

pixel

103 ms

gcm

gcm

1393 ms

asr

asr

1400 ms

usersync.aspx

usersync.aspx

331 ms

rexdot.js

rexdot.js

253 ms

activeview

activeview

435 ms

WGg91BhL6Bhk3qTAPqmblqNZdzujbVjDoJfr3h8Q3EY.js

WGg91BhL6Bhk3qTAPqmblqNZdzujbVjDoJfr3h8Q3EY.js

242 ms

4Ua_rENHsxJlGDuGo1OIlJfC6l_24rlCK1Yo_Iqcsih3SAyH6cAwhX9RFD48TE63OOYKtrw2IJllpy8.woff

4Ua_rENHsxJlGDuGo1OIlJfC6l_24rlCK1Yo_Iqcsih3SAyH6cAwhX9RFD48TE63OOYKtrw2IJllpy8.woff

778 ms

4Ua_rENHsxJlGDuGo1OIlJfC6l_24rlCK1Yo_Iqcsih3SAyH6cAwhX9RFD48TE63OOYKtrwEIJllpy8.woff

4Ua_rENHsxJlGDuGo1OIlJfC6l_24rlCK1Yo_Iqcsih3SAyH6cAwhX9RFD48TE63OOYKtrwEIJllpy8.woff

798 ms

google

google

599 ms

632 ms

sn.ashx

sn.ashx

215 ms

gcm

gcm

1098 ms

618 ms

css

css

188 ms

activeview

activeview

554 ms

pixel

pixel

377 ms

pixel

pixel

424 ms

pixel

pixel

422 ms

activeview

activeview

437 ms

activeview

activeview

421 ms

pixel

pixel

383 ms

pixel

pixel

390 ms

pixel

pixel

387 ms

4Ua_rENHsxJlGDuGo1OIlJfC6l_24rlCK1Yo_Iqcsih3SAyH6cAwhX9RFD48TE63OOYKtrzjJ5llpy8.woff

4Ua_rENHsxJlGDuGo1OIlJfC6l_24rlCK1Yo_Iqcsih3SAyH6cAwhX9RFD48TE63OOYKtrzjJ5llpy8.woff

215 ms

pixel

pixel

53 ms

google

google

12 ms

pixel

pixel

47 ms

pixel

pixel

45 ms

pixel

pixel

44 ms

pixel

pixel

42 ms

pixel

pixel

38 ms

18 ms

17 ms

pixel

pixel

16 ms

pixel

pixel

16 ms

sodar

sodar

71 ms

pixel

pixel

13 ms

sodar2.js

sodar2.js

5 ms

runner.html

runner.html

7 ms

aframe

aframe

22 ms

feg8rL66UTsTrrlS9w_iUH8JqR_kCfLFdi2W6wljJCU.js

feg8rL66UTsTrrlS9w_iUH8JqR_kCfLFdi2W6wljJCU.js

10 ms

pixel

pixel

14 ms

pixel

pixel

14 ms

pixel

pixel

52 ms

Accessibility Review

profesor.pl accessibility score

67

Accessibility Issues

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

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

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

Form elements do not have associated labels

High

Links do not have a discernible name

Best Practices

profesor.pl best practices score

83

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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

profesor.pl SEO score

62

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

Language and Encoding

  • Language Detected

    PL

  • Language Claimed

    N/A

  • Encoding

    ISO-8859-2

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

profesor.pl

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