2.9 sec in total
474 ms
2.1 sec
311 ms
Click here to check amazing Zsb Bydgoszcz content for Poland. Otherwise, check out these important facts you probably never knew about zsb.bydgoszcz.pl
ZSB - Zespół Szkół Budowlanych w Bydgoszczy, ul. Pestalozziego 18, 85-095 Bydgoszcz
Visit zsb.bydgoszcz.plWe analyzed Zsb.bydgoszcz.pl page load time and found that the first response time was 474 ms and then it took 2.4 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 45% of websites can load faster.
zsb.bydgoszcz.pl performance score
name
value
score
weighting
Value3.0 s
50/100
10%
Value5.9 s
14/100
25%
Value8.8 s
15/100
10%
Value130 ms
96/100
30%
Value0.52
15/100
15%
Value12.2 s
15/100
10%
474 ms
33 ms
114 ms
349 ms
231 ms
Our browser made a total of 57 requests to load all elements on the main page. We found that 98% of them (56 requests) were addressed to the original Zsb.bydgoszcz.pl, 2% (1 request) were made to Ajax.googleapis.com. The less responsive or slowest element that took the longest time to load (904 ms) belongs to the original domain Zsb.bydgoszcz.pl.
Page size can be reduced by 264.8 kB (35%)
751.1 kB
486.3 kB
In fact, the total size of Zsb.bydgoszcz.pl main page is 751.1 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. 40% of websites need less resources to load. Images take 584.0 kB which makes up the majority of the site volume.
Potential reduce by 21.7 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 21.7 kB or 77% of the original size.
Potential reduce by 132.1 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, Zsb Bydgoszcz needs image optimization as it can save up to 132.1 kB or 23% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 53.5 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 53.5 kB or 72% of the original size.
Potential reduce by 57.5 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. Zsb.bydgoszcz.pl needs all CSS files to be minified and compressed as it can save up to 57.5 kB or 88% of the original size.
Number of requests can be reduced by 18 (32%)
56
38
The browser has sent 56 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Zsb Bydgoszcz. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.
zsb.bydgoszcz.pl
474 ms
jquery.min.js
33 ms
shadowbox.css
114 ms
shadowbox.js
349 ms
common.css
231 ms
zsb.css
239 ms
www_page.css
229 ms
www_menu.css
230 ms
zsb.js
441 ms
ajax.js
340 ms
dhtmltooltip.js
341 ms
tlo.png
226 ms
zsb_1.jpg
336 ms
zsb_2.jpg
341 ms
zsb_3.jpg
455 ms
zlota_szkola.png
231 ms
zsb_menu_tlo.png
121 ms
zsb.png
236 ms
menu1.png
337 ms
menu2.png
343 ms
menu3.png
345 ms
menu4.png
446 ms
menu5.png
448 ms
menu6.png
452 ms
menu7.png
453 ms
search_tlo.png
456 ms
lupa.png
557 ms
goralink.gif
559 ms
bip.png
563 ms
tlokom1.png
566 ms
img_00001601_01_001m.jpg
568 ms
tlokom2.png
678 ms
img_00001678_01_002m.jpg
667 ms
img_00000023_01_001m.jpg
670 ms
wazne.png
673 ms
img_00001768_01_001m.png
792 ms
img_00001771_01_001m.jpg
679 ms
img_00001770_01_001m.jpg
778 ms
img_00001769_01_001m.jpg
780 ms
img_00001767_01_001m.jpg
783 ms
serwis1.png
793 ms
tlokal.png
793 ms
img_00000564_01_020m.jpg
891 ms
img_00000564_01_003m.jpg
892 ms
img_00000564_01_004m.jpg
894 ms
img_00000564_01_005m.jpg
903 ms
img_00000564_01_006m.jpg
904 ms
img_00000564_01_007m.jpg
790 ms
img_00000564_01_008m.jpg
781 ms
img_00000564_01_010m.jpg
776 ms
img_00000564_01_016m.jpg
775 ms
img_00000564_01_014m.jpg
683 ms
img_00000564_01_013m.jpg
683 ms
img_00000564_01_015m.png
791 ms
img_00000564_01_018m.gif
774 ms
img_00000564_01_019m.gif
773 ms
img_00000071_01_001m.jpg
675 ms
zsb.bydgoszcz.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 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.
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.
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
zsb.bydgoszcz.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
Page has valid source maps
zsb.bydgoszcz.pl SEO score
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
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Zsb.bydgoszcz.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 Zsb.bydgoszcz.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.
zsb.bydgoszcz.pl
Open Graph description is not detected on the main page of Zsb Bydgoszcz. 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: