Tools & Wizards About Us
strefakursow.pl screenshot

Report Summary

  • 17

    Performance

    Renders faster than
    32% of other websites

  • 83

    Accessibility

    Visual factors better than
    that of 54% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

strefakursow.pl

strefakursów.pl - kursy i szkolenia on-line

Page Load Speed

33.7 sec in total

First Response

1.3 sec

Resources Loaded

3.1 sec

Page Rendered

29.2 sec

strefakursow.pl screenshot

About Website

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

Zdobądź wiedzę online od doświadczonych ekspertów i otrzymaj imienny certyfikat. Pomożemy Ci rozwijać Twoje pasje i umiejętności zawodowe.

Visit strefakursow.pl

Key Findings

We analyzed Strefakursow.pl page load time and found that the first response time was 1.3 sec and then it took 32.4 sec to load all DOM resources and completely render a web page. This is an excellent result, as only a small number of websites can load faster.

Performance Metrics

strefakursow.pl performance score

17

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.6 s

31/100

10%

LCP (Largest Contentful Paint)

Value11.9 s

0/100

25%

SI (Speed Index)

Value7.5 s

26/100

10%

TBT (Total Blocking Time)

Value2,490 ms

4/100

30%

CLS (Cumulative Layout Shift)

Value0.191

64/100

15%

TTI (Time to Interactive)

Value16.4 s

5/100

10%

Network Requests Diagram

strefakursow.pl

1330 ms

main-build.css

284 ms

jquery-3.6.4.min.js

368 ms

client

73 ms

appleid.auth.js

49 ms

Our browser made a total of 75 requests to load all elements on the main page. We found that 71% of them (53 requests) were addressed to the original Strefakursow.pl, 8% (6 requests) were made to Strefafilmy.s3.amazonaws.com and 4% (3 requests) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (1.3 sec) belongs to the original domain Strefakursow.pl.

Page Optimization Overview & Recommendations

Page size can be reduced by 448.4 kB (47%)

Content Size

962.4 kB

After Optimization

514.0 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Strefakursow.pl main page is 962.4 kB. 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. HTML takes 474.7 kB which makes up the majority of the site volume.

HTML Optimization

-93%

Potential reduce by 443.6 kB

  • Original 474.7 kB
  • After minification 243.3 kB
  • After compression 31.1 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 231.4 kB, which is 49% 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 443.6 kB or 93% of the original size.

Image Optimization

-4%

Potential reduce by 2.8 kB

  • Original 65.3 kB
  • After minification 62.5 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. Strefakursow images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 1.7 kB

  • Original 349.7 kB
  • After minification 349.7 kB
  • After compression 348.0 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. This website has mostly compressed JavaScripts.

CSS Optimization

-0%

Potential reduce by 270 B

  • Original 72.7 kB
  • After minification 72.7 kB
  • After compression 72.4 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. Strefakursow.pl has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 36 (51%)

Requests Now

70

After Optimization

34

  • Images
  • JavaScript
  • CSS

The browser has sent 70 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Strefakursow. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 16 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

strefakursow.pl

strefakursow.pl

1330 ms

main-build.css

main-build.css

284 ms

jquery-3.6.4.min.js

jquery-3.6.4.min.js

368 ms

client

client

73 ms

appleid.auth.js

appleid.auth.js

49 ms

klaro-config.js

klaro-config.js

273 ms

klaro-no-css.js

klaro-no-css.js

65 ms

swiper-bundle.min.css

swiper-bundle.min.css

273 ms

api.js

api.js

40 ms

main-build.js

main-build.js

444 ms

countdown.js

countdown.js

272 ms

5889e77becdbc05635e70df3.js

5889e77becdbc05635e70df3.js

779 ms

platform.js

platform.js

27 ms

swiper-bundle.min.js

swiper-bundle.min.js

448 ms

gtm.js

gtm.js

205 ms

logo_48.png

logo_48.png

203 ms

default-logo-desktop.svg

default-logo-desktop.svg

153 ms

1x1.png

1x1.png

157 ms

695f614de71c51cb037421c67f73e83b.png

695f614de71c51cb037421c67f73e83b.png

158 ms

a5fc7be1ba1bf44af75b583c02293329.png

a5fc7be1ba1bf44af75b583c02293329.png

158 ms

276022ee4408e8cbd2b1ec35ca3c300d.png

276022ee4408e8cbd2b1ec35ca3c300d.png

489 ms

1db405fdec4a8b6368a57ed6e543af0f.png

1db405fdec4a8b6368a57ed6e543af0f.png

485 ms

d7427f791bd8473b7230e833312fcd9b.png

d7427f791bd8473b7230e833312fcd9b.png

487 ms

617fc14c39e7d4f97ce4ed74e49f5a9c.png

617fc14c39e7d4f97ce4ed74e49f5a9c.png

487 ms

04235a137552540c6cb75b15ee340165.png

04235a137552540c6cb75b15ee340165.png

486 ms

logo-footer.svg

logo-footer.svg

484 ms

newsletter_signup.svg

newsletter_signup.svg

573 ms

recaptcha_alert.svg

recaptcha_alert.svg

572 ms

programowanie.svg

programowanie.svg

848 ms

search.svg

search.svg

517 ms

help_contact.svg

help_contact.svg

516 ms

cart.svg

cart.svg

515 ms

login.svg

login.svg

521 ms

arrow-right-primary.svg

arrow-right-primary.svg

694 ms

suitcase.svg

suitcase.svg

696 ms

arrow-right-long-white.svg

arrow-right-long-white.svg

700 ms

small-header.png

small-header.png

701 ms

experience.svg

experience.svg

698 ms

opinion.svg

opinion.svg

699 ms

users.svg

users.svg

791 ms

video.svg

video.svg

785 ms

arrow-right-inverse-no-opacity.svg

arrow-right-inverse-no-opacity.svg

790 ms

preloader.svg

preloader.svg

792 ms

star-grey.svg

star-grey.svg

787 ms

star.svg

star.svg

789 ms

timer.svg

timer.svg

875 ms

4.svg

4.svg

877 ms

public-profile-flag.svg

public-profile-flag.svg

879 ms

verified_review.svg

verified_review.svg

881 ms

sk-opinie-logo.svg

sk-opinie-logo.svg

887 ms

google_logo_20x20.svg

google_logo_20x20.svg

889 ms

ps_suitcase.svg

ps_suitcase.svg

803 ms

fotografia.svg

fotografia.svg

800 ms

projektowanie.svg

projektowanie.svg

805 ms

biznes-i-marketing.svg

biznes-i-marketing.svg

808 ms

rozwoj-osobisty.svg

rozwoj-osobisty.svg

806 ms

recaptcha__en.js

recaptcha__en.js

141 ms

d

d

355 ms

d

d

414 ms

d

d

444 ms

PAJJhLM6sSoWKfWCAAwDAjgbRAAB42mNgYGBkAIIbCZo5IPrmUn0hGA0AO8EFTQAA

PAJJhLM6sSoWKfWCAAwDAjgbRAAB42mNgYGBkAIIbCZo5IPrmUn0hGA0AO8EFTQAA

0 ms

handshake.svg

handshake.svg

869 ms

phone.svg

phone.svg

872 ms

email.svg

email.svg

873 ms

arrow-right-full-grey.svg

arrow-right-full-grey.svg

872 ms

fb-logo-white.svg

fb-logo-white.svg

875 ms

tracking.js

tracking.js

311 ms

twitter.svg

twitter.svg

835 ms

js

js

146 ms

js

js

211 ms

youtube.svg

youtube.svg

631 ms

instagram.svg

instagram.svg

633 ms

linkedin.svg

linkedin.svg

633 ms

cloudlms.png

cloudlms.png

633 ms

madeintarnow.png

madeintarnow.png

633 ms

Accessibility Review

strefakursow.pl accessibility score

83

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

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

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

Best Practices

strefakursow.pl best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

strefakursow.pl SEO score

83

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

    PL

  • Language Claimed

    PL

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Strefakursow.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 Strefakursow.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

strefakursow.pl

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