6.2 sec in total
361 ms
5.4 sec
405 ms
Welcome to bis.sk homepage info - get ready to check Bis best content right away, or after learning these important things about bis.sk
Welcome to The British International School Bratislava, an internationally recognised Nord Anglia Education School located in the capital of Slovakia.
Visit bis.skWe analyzed Bis.sk page load time and found that the first response time was 361 ms and then it took 5.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.
bis.sk performance score
name
value
score
weighting
Value3.2 s
43/100
10%
Value6.3 s
11/100
25%
Value21.9 s
0/100
10%
Value23,050 ms
0/100
30%
Value0
100/100
15%
Value47.7 s
0/100
10%
361 ms
673 ms
906 ms
9 ms
458 ms
Our browser made a total of 72 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Bis.sk, 43% (31 requests) were made to Nordangliaeducation.com and 29% (21 requests) were made to Img.nordangliaeducation.com. The less responsive or slowest element that took the longest time to load (2.4 sec) relates to the external source Nordangliaeducation.com.
Page size can be reduced by 467.6 kB (24%)
1.9 MB
1.5 MB
In fact, the total size of Bis.sk main page is 1.9 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. 50% of websites need less resources to load. Images take 1.3 MB which makes up the majority of the site volume.
Potential reduce by 102.2 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 102.2 kB or 72% of the original size.
Potential reduce by 67.6 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. Bis images are well optimized though.
Potential reduce by 296.2 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 296.2 kB or 61% of the original size.
Potential reduce by 1.5 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. Bis.sk needs all CSS files to be minified and compressed as it can save up to 1.5 kB or 65% of the original size.
Number of requests can be reduced by 30 (47%)
64
34
The browser has sent 64 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Bis. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 18 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.
bis.sk
361 ms
673 ms
bratislava
906 ms
2.12.0
9 ms
colorbox.min.css
458 ms
global.v4.less
18 ms
phase2-global-v1.less
10 ms
home.less
236 ms
coreLibrary2JS
1371 ms
2.12.0
24 ms
phase2GlobalJS
677 ms
fitVidsJS
456 ms
colorboxJS
231 ms
flexSlider
670 ms
phase2HomeJS
232 ms
analyticsJS
459 ms
addthis_widget.js
8 ms
2316-cropped-w695-h50-of-1-FFFFFF-bratislava_desktop.png
242 ms
NAE-black-crown.png
242 ms
6854-bounded-w382-h362-of-1-FFFFFF-the-british-international-school-bratislava.png
319 ms
2166-cropped-w300-h300-of-1-FFFFFF-bratislava_185.JPG
367 ms
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11319-cropped-w200-h180-of-1-FFFFFF-global-campus_v1.png
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11318-cropped-w200-h180-of-1-FFFFFF-highest-quality-learning.png
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523 ms
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685 ms
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600 ms
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681 ms
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753 ms
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754 ms
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824 ms
gtm.js
86 ms
header-cta-icon-sprite.png
283 ms
header-icon-sprite.png
284 ms
navDivot.png
284 ms
cta-tab-sprite.png
284 ms
sketchLine.png
447 ms
footer-tear-mask.png
423 ms
calendarArrow.png
459 ms
footer-social-icon-sprite.png
459 ms
source-sans-pro-reg.svg
1074 ms
source-sans-pro-light.svg
1727 ms
source-sans-pro-bold.svg
2141 ms
DearJoe3.ttf
2363 ms
conversion_async.js
90 ms
analytics.js
87 ms
bat.js
170 ms
prum.min.js
83 ms
grey_85.png
488 ms
linkid.js
25 ms
collect
79 ms
55 ms
collect
30 ms
collect
32 ms
collect
80 ms
collect
39 ms
43 ms
ctaDip.png
232 ms
nr-892.min.js
58 ms
300lo.json
35 ms
carouselPaginationSprite.png
231 ms
sh.8e5f85691f9aaa082472a194.html
27 ms
beacon.gif
173 ms
64f241942b
46 ms
bis.sk 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-hidden="true"] elements contain focusable descendents
ARIA input fields do not have accessible names
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
[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
Links do not have a discernible name
bis.sk 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
Browser errors were logged to the console
bis.sk SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
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
Document uses legible font sizes
Tap targets are not sized appropriately
EN
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Bis.sk can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that Bis.sk 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.
bis.sk
Open Graph description is not detected on the main page of Bis. 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: