4.5 sec in total
496 ms
3.4 sec
574 ms
Visit vulcan.edu.pl now to see the best up-to-date VULCAN content for Poland and also check out these interesting facts you probably never knew about vulcan.edu.pl
Jesteśmy liderem rynku oprogramowania dla oświaty. Zapoznaj się z naszą ofertą programów i szkoleń dla szkół, przedszkoli i samorządów.
Visit vulcan.edu.plWe analyzed Vulcan.edu.pl page load time and found that the first response time was 496 ms and then it took 4 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.
vulcan.edu.pl performance score
name
value
score
weighting
Value3.2 s
44/100
10%
Value5.2 s
23/100
25%
Value5.3 s
58/100
10%
Value60 ms
100/100
30%
Value0.976
2/100
15%
Value5.0 s
76/100
10%
496 ms
1044 ms
114 ms
227 ms
36 ms
Our browser made a total of 58 requests to load all elements on the main page. We found that 79% of them (46 requests) were addressed to the original Vulcan.edu.pl, 7% (4 requests) were made to App2.salesmanago.pl and 5% (3 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (1.3 sec) relates to the external source App2.salesmanago.pl.
Page size can be reduced by 381.5 kB (23%)
1.7 MB
1.3 MB
In fact, the total size of Vulcan.edu.pl main page is 1.7 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. 40% of websites need less resources to load. Images take 1.2 MB which makes up the majority of the site volume.
Potential reduce by 88.9 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 47.5 kB, which is 48% 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 88.9 kB or 89% of the original size.
Potential reduce by 60.2 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. VULCAN images are well optimized though.
Potential reduce by 165.3 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 165.3 kB or 58% of the original size.
Potential reduce by 67.1 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. Vulcan.edu.pl needs all CSS files to be minified and compressed as it can save up to 67.1 kB or 84% of the original size.
Number of requests can be reduced by 25 (48%)
52
27
The browser has sent 52 CSS, Javascripts, AJAX and image requests in order to completely render the main page of VULCAN. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 14 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.
vulcan.edu.pl
496 ms
www.vulcan.edu.pl
1044 ms
home.css
114 ms
component.css
227 ms
font-awesome.min.css
36 ms
css
67 ms
cl_lib.js
336 ms
modernizr.custom.js
341 ms
jquery-1.11.3.min.js
583 ms
cookie.js
368 ms
is.min.js
369 ms
jquery.dlmenu.js
368 ms
jquery.transform2d.js
449 ms
jquery.easing.1.3.js
448 ms
cl_slider.js
463 ms
cl_tableslider.js
474 ms
jquery.columnizer.js
602 ms
front.js
559 ms
dc.js
90 ms
logo-vulcan.png
220 ms
lupa.png
237 ms
lock.svg
297 ms
paragraph.svg
332 ms
164.jpg
1118 ms
163.jpg
1039 ms
162.jpg
826 ms
153.png
596 ms
pyramid.svg
368 ms
nav-kalendarz.svg
446 ms
nav-aktualizacje.svg
487 ms
nav-artykuly.svg
560 ms
nav-newsletter.svg
604 ms
nav-praca.svg
679 ms
nav-kontakt.svg
712 ms
4.jpg
950 ms
2.png
790 ms
3.jpg
828 ms
olowek.svg
905 ms
telefon.svg
941 ms
koperta.svg
945 ms
arrow-up.svg
1017 ms
bg-submenu.png
1041 ms
zapis_na_newsletter_duzy.htm
535 ms
zapis_na_newsletter_sredni.htm
748 ms
zapis_na_newsletter_maly.htm
941 ms
BTu4SsVveqk58cdYjlaM9g.ttf
90 ms
4GwpJM7qx9X5Obd9KsnKxQ.ttf
110 ms
zpv3sOKAbMf4wff105oLjw.ttf
139 ms
fontawesome-webfont.woff
19 ms
__utm.gif
17 ms
pyramid.svg
804 ms
telefon.svg
789 ms
koperta.svg
848 ms
sm.js
1259 ms
stat.php
900 ms
zdj-newsletter-duzy.jpg
614 ms
guzik-1260-i-768.jpg
616 ms
guzik-320.jpg
206 ms
vulcan.edu.pl accessibility score
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
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
<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
Image elements do not have [alt] attributes
<input type="image"> elements do not have [alt] text
Form elements do not have associated labels
Links do not have a discernible name
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
Lists do not contain only <li> elements and script supporting elements (<script> and <template>).
vulcan.edu.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
General
Impact
Issue
Detected JavaScript libraries
vulcan.edu.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
N/A
ISO-8859-2
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Vulcan.edu.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 Vulcan.edu.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.
vulcan.edu.pl
Open Graph description is not detected on the main page of VULCAN. 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: