4.4 sec in total
1.1 sec
3.1 sec
236 ms
Welcome to leaderschool.pl homepage info - get ready to check Leader School best content for Poland right away, or after learning these important things about leaderschool.pl
Leader School ® sieć placówek edukacyjnych wykorzystujących nowoczesne metody kształcenia w zakresie języków obcych i efektywnej nauki Leo English, Leo Maniak
Visit leaderschool.plWe analyzed Leaderschool.pl page load time and found that the first response time was 1.1 sec and then it took 3.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.
leaderschool.pl performance score
name
value
score
weighting
Value4.8 s
12/100
10%
Value7.4 s
4/100
25%
Value11.2 s
5/100
10%
Value1,430 ms
15/100
30%
Value0.812
4/100
15%
Value9.6 s
29/100
10%
1077 ms
36 ms
46 ms
340 ms
243 ms
Our browser made a total of 74 requests to load all elements on the main page. We found that 89% of them (66 requests) were addressed to the original Leaderschool.pl, 4% (3 requests) were made to Fonts.googleapis.com and 3% (2 requests) were made to Maxcdn.bootstrapcdn.com. The less responsive or slowest element that took the longest time to load (1.1 sec) belongs to the original domain Leaderschool.pl.
Page size can be reduced by 833.9 kB (47%)
1.8 MB
953.4 kB
In fact, the total size of Leaderschool.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. 45% of websites need less resources to load. Images take 835.0 kB which makes up the majority of the site volume.
Potential reduce by 49.8 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 19.5 kB, which is 33% 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 49.8 kB or 85% of the original size.
Potential reduce by 144.7 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. Obviously, Leader School needs image optimization as it can save up to 144.7 kB or 17% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 354.2 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 354.2 kB or 69% of the original size.
Potential reduce by 285.2 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. Leaderschool.pl needs all CSS files to be minified and compressed as it can save up to 285.2 kB or 75% of the original size.
Number of requests can be reduced by 51 (71%)
72
21
The browser has sent 72 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Leader School. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 29 to 1 for JavaScripts and from 24 to 1 for CSS and as a result speed up the page load time.
leaderschool.pl
1077 ms
font-awesome.min.css
36 ms
css
46 ms
stylesheet.css
340 ms
system-message.css
243 ms
styles.css
243 ms
style.min.css
245 ms
superfish.css
245 ms
style.css
245 ms
event_template.css
357 ms
responsive.css
355 ms
css
67 ms
jquery.fancybox.css
700 ms
jquery.fancybox-thumbs.css
356 ms
bootstrap.min.css
589 ms
owl.carousel.min.css
449 ms
owl.theme.min.css
467 ms
style.css
469 ms
jquery.js
814 ms
jquery-migrate.min.js
564 ms
jquery.Tooltip.js
576 ms
jquery.validate.min.js
692 ms
script.js
673 ms
preloader-script.js
689 ms
wow.min.js
694 ms
bootstrap-select.min.js
788 ms
main.js
803 ms
npm.js
804 ms
jquery.mixitup.js
922 ms
jquery.easing.min.js
807 ms
brick-by-brick.min.js
901 ms
bootstrap.min.js
1031 ms
owl.carousel.min.js
919 ms
jquery.fancybox.js
923 ms
jquery.fancybox-thumbs.js
922 ms
js
52 ms
css
53 ms
analytics.js
25 ms
wp-emoji-release.min.js
966 ms
collect
11 ms
jquery.form.min.js
943 ms
scripts.js
944 ms
core.min.js
944 ms
widget.min.js
946 ms
tabs.min.js
905 ms
jquery.ba-bbq.min.js
920 ms
jquery.carouFredSel-6.2.1-packed.js
924 ms
timetable.js
921 ms
comment-reply.min.js
923 ms
style.css
696 ms
pages.css
788 ms
universal.css
803 ms
style.css
807 ms
1.reset.min.css
117 ms
2.setup.min.css
119 ms
kwiaty.jpg
463 ms
napis.jpg
461 ms
familyslider.png
813 ms
familyworld.png
170 ms
leo.jpg
473 ms
slide3-text.png
171 ms
klepsydra1.png
237 ms
checka1.png
357 ms
cetyfikat1.png
352 ms
konik1.png
471 ms
bls-system.png
590 ms
leo-english.png
692 ms
leo-maniak.png
689 ms
girl-school-1.jpg
816 ms
preloader.GIF
577 ms
leader-school-logo.png
664 ms
leaderalternativelogo.png
665 ms
rabidus-logo.png
763 ms
fontawesome-webfont.woff
11 ms
leaderschool.pl accessibility score
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
[aria-*] attributes do not match their roles
[aria-hidden="true"] elements contain focusable descendents
ARIA input fields do not have accessible names
Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.
ARIA toggle fields do not have accessible names
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
Buttons do not have an accessible name
Image elements do not have [alt] attributes
Links do not have a discernible name
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
leaderschool.pl best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Includes front-end JavaScript libraries with known security vulnerabilities
Ensure CSP is effective against XSS attacks
User Experience
Impact
Issue
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
Page has valid source maps
leaderschool.pl SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
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
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
Document uses legible font sizes
Tap targets are not sized appropriately
PL
PL
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Leaderschool.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 Leaderschool.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.
leaderschool.pl
Open Graph description is not detected on the main page of Leader School. 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: