Tools & Wizards About Us
itsw.edu.pl screenshot

Report Summary

  • 16

    Performance

    Renders faster than
    30% of other websites

  • 75

    Accessibility

    Visual factors better than
    that of 41% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 91

    SEO

    Google-friendlier than
    70% of websites

itsw.edu.pl

Welcome to International Trilingual School of Warsaw - ITSW

Page Load Speed

7.2 sec in total

First Response

385 ms

Resources Loaded

5.4 sec

Page Rendered

1.4 sec

itsw.edu.pl screenshot

About Website

Visit itsw.edu.pl now to see the best up-to-date ITSW content and also check out these interesting facts you probably never knew about itsw.edu.pl

Welcome to ITSW - the trilingual Primary school, Pre-school, and Nursery. Our international school provides excellent education in Polish, English, French, Spanish, and Chinese.

Visit itsw.edu.pl

Key Findings

We analyzed Itsw.edu.pl page load time and found that the first response time was 385 ms and then it took 6.8 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

itsw.edu.pl performance score

16

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.8 s

27/100

10%

LCP (Largest Contentful Paint)

Value9.3 s

1/100

25%

SI (Speed Index)

Value12.6 s

3/100

10%

TBT (Total Blocking Time)

Value1,080 ms

24/100

30%

CLS (Cumulative Layout Shift)

Value0.313

37/100

15%

TTI (Time to Interactive)

Value18.2 s

3/100

10%

Network Requests Diagram

itsw.edu.pl

385 ms

1698 ms

uc.js

34 ms

style.min.css

236 ms

mediaelementplayer-legacy.min.css

359 ms

Our browser made a total of 49 requests to load all elements on the main page. We found that 84% of them (41 requests) were addressed to the original Itsw.edu.pl, 4% (2 requests) were made to Googletagmanager.com and 4% (2 requests) were made to Connect.facebook.net. The less responsive or slowest element that took the longest time to load (1.7 sec) belongs to the original domain Itsw.edu.pl.

Page Optimization Overview & Recommendations

Page size can be reduced by 102.2 kB (3%)

Content Size

3.5 MB

After Optimization

3.4 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Itsw.edu.pl main page is 3.5 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. 60% of websites need less resources to load. Images take 2.7 MB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 69.3 kB

  • Original 86.9 kB
  • After minification 86.9 kB
  • After compression 17.6 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 69.3 kB or 80% of the original size.

Image Optimization

-1%

Potential reduce by 19.2 kB

  • Original 2.7 MB
  • After minification 2.7 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. ITSW images are well optimized though.

JavaScript Optimization

-2%

Potential reduce by 9.8 kB

  • Original 617.6 kB
  • After minification 617.6 kB
  • After compression 607.9 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

-3%

Potential reduce by 3.9 kB

  • Original 143.0 kB
  • After minification 143.0 kB
  • After compression 139.0 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. Itsw.edu.pl has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 24 (60%)

Requests Now

40

After Optimization

16

  • Images
  • JavaScript
  • CSS

The browser has sent 40 CSS, Javascripts, AJAX and image requests in order to completely render the main page of ITSW. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 11 to 1 for JavaScripts and from 10 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

itsw.edu.pl

itsw.edu.pl

385 ms

1698 ms

uc.js

uc.js

34 ms

style.min.css

style.min.css

236 ms

mediaelementplayer-legacy.min.css

mediaelementplayer-legacy.min.css

359 ms

wp-mediaelement.min.css

wp-mediaelement.min.css

363 ms

bootstrap.min.css

bootstrap.min.css

493 ms

vendor.min.css

vendor.min.css

500 ms

fonts.min.css

fonts.min.css

371 ms

itsw.min.css

itsw.min.css

384 ms

autoptimize_single_2a614626e6c0f499b6d6cfca409d7f6d.css

autoptimize_single_2a614626e6c0f499b6d6cfca409d7f6d.css

517 ms

style-static.min.css

style-static.min.css

778 ms

autoptimize_single_f121cbe481654c96ce787303a88233a9.css

autoptimize_single_f121cbe481654c96ce787303a88233a9.css

540 ms

js

js

73 ms

lazysizes.min.js

lazysizes.min.js

434 ms

hooks.min.js

hooks.min.js

501 ms

i18n.min.js

i18n.min.js

502 ms

e-202439.js

e-202439.js

16 ms

js

js

76 ms

autoptimize_8b76dfafd0bf8fe710714110e50d4ce7.js

autoptimize_8b76dfafd0bf8fe710714110e50d4ce7.js

1006 ms

gtm.js

gtm.js

90 ms

ITSW.jpg

ITSW.jpg

269 ms

sdk.js

sdk.js

88 ms

gb.svg

gb.svg

132 ms

pl.svg

pl.svg

133 ms

fr.svg

fr.svg

130 ms

es.svg

es.svg

301 ms

cn.svg

cn.svg

325 ms

jp.svg

jp.svg

326 ms

Zlobek_ITSW.jpg

Zlobek_ITSW.jpg

396 ms

Przedszkole_ITSW.jpg

Przedszkole_ITSW.jpg

418 ms

Szkola_podstawowa_ITSW.jpg

Szkola_podstawowa_ITSW.jpg

415 ms

itsw-news-background.jpg

itsw-news-background.jpg

409 ms

Przedszole-jezykowe-ITSW.jpg

Przedszole-jezykowe-ITSW.jpg

764 ms

ITSW-Summer-Contest.jpg

ITSW-Summer-Contest.jpg

880 ms

ITS_photo_Krakow_38-min.jpg

ITS_photo_Krakow_38-min.jpg

1208 ms

pexels-tatiana-syrikova-39332501.jpg

pexels-tatiana-syrikova-39332501.jpg

666 ms

Ubuntu-Light.ttf

Ubuntu-Light.ttf

535 ms

Ubuntu-Regular.ttf

Ubuntu-Regular.ttf

722 ms

Ubuntu-Bold.ttf

Ubuntu-Bold.ttf

731 ms

fa-brands-400.woff

fa-brands-400.woff

847 ms

fa-regular-400.woff

fa-regular-400.woff

817 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

874 ms

fa-solid-900.woff

fa-solid-900.woff

861 ms

sdk.js

sdk.js

25 ms

54 ms

itsw-logo.png

itsw-logo.png

913 ms

itsw-logo-white.png

itsw-logo-white.png

910 ms

netivo_logo_white.png

netivo_logo_white.png

927 ms

Accessibility Review

itsw.edu.pl accessibility score

75

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 input fields do not have accessible names

High

Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.

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

Links do not have a discernible name

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.

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

List items (<li>) are not contained within <ul> or <ol> parent elements.

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

itsw.edu.pl 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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

SEO Factors

itsw.edu.pl SEO score

91

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

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    PL

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Itsw.edu.pl can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it does not match the claimed Polish language. Our system also found out that Itsw.edu.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

itsw.edu.pl

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