3.5 sec in total
437 ms
2.8 sec
279 ms
Click here to check amazing Skolnistranky content for Czech Republic. Otherwise, check out these important facts you probably never knew about skolnistranky.cz
Studentské stránky bez cenzury a katalog základních a středních škol v ČR. To jsou Školní stránky.cz.
Visit skolnistranky.czWe analyzed Skolnistranky.cz page load time and found that the first response time was 437 ms and then it took 3.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.
skolnistranky.cz performance score
name
value
score
weighting
Value4.5 s
15/100
10%
Value7.5 s
4/100
25%
Value13.9 s
1/100
10%
Value22,800 ms
0/100
30%
Value0.005
100/100
15%
Value33.1 s
0/100
10%
437 ms
770 ms
202 ms
205 ms
412 ms
Our browser made a total of 76 requests to load all elements on the main page. We found that 68% of them (52 requests) were addressed to the original Skolnistranky.cz, 7% (5 requests) were made to Pagead2.googlesyndication.com and 5% (4 requests) were made to Adsnew.kampomaturite.cz. The less responsive or slowest element that took the longest time to load (770 ms) belongs to the original domain Skolnistranky.cz.
Page size can be reduced by 124.6 kB (41%)
306.5 kB
182.0 kB
In fact, the total size of Skolnistranky.cz main page is 306.5 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 135.5 kB which makes up the majority of the site volume.
Potential reduce by 19.6 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 19.6 kB or 72% of the original size.
Potential reduce by 16.2 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. Obviously, Skolnistranky needs image optimization as it can save up to 16.2 kB or 12% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 65.4 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 65.4 kB or 57% of the original size.
Potential reduce by 23.3 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. Skolnistranky.cz needs all CSS files to be minified and compressed as it can save up to 23.3 kB or 82% of the original size.
Number of requests can be reduced by 42 (59%)
71
29
The browser has sent 71 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Skolnistranky. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 16 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.
skolnistranky.cz
437 ms
www.skolnistranky.cz
770 ms
styles.css
202 ms
thickbox.css
205 ms
jquery.js
412 ms
thickbox.js
209 ms
ajax_nahlaseni.js
208 ms
ajax_hlasovani.js
209 ms
spcjs.php
403 ms
urchin.js
9 ms
show_ads.js
5 ms
scripts.js
205 ms
spc.php
408 ms
fl.js
355 ms
print.css
103 ms
__utm.gif
24 ms
header.png
162 ms
header-illustration.gif
207 ms
logo.png
154 ms
login.gif
156 ms
input.png
154 ms
b-prihlasitse.png
155 ms
menu.png
195 ms
rss.png
204 ms
google.png
209 ms
b-vyhledat.png
209 ms
nahled_Adriena__5776.jpg
234 ms
nahled_Sussi__8853.jpg
307 ms
nahled_Sussi__320.jpg
305 ms
nahled_16f0f9b7bab6872b8012d544be76974d1221515189.jpg
333 ms
nahled_56285c9190804f10f4cbb949150b8c411219080198.jpg
333 ms
nahled_6253c79c5130cc41d63985903955e8901219080182.jpg
334 ms
nahled__17607.jpg
339 ms
nahled_9b4bf7540583fb2dc148667dcb50507f1229215160.jpg
412 ms
nahled_c26c0438782d70e272e9b9207085fc841229215160.jpg
409 ms
box.png
484 ms
box-top.png
486 ms
box-bracket.png
486 ms
chcisezaregistrovat.png
484 ms
box-bottom.png
511 ms
search-input.png
510 ms
section-header.png
557 ms
i-nejnovejsivzkazy.png
557 ms
mail.gif
549 ms
more.png
557 ms
ca-pub-6980118312713696.js
51 ms
zrt_lookup.html
44 ms
show_ads_impl.js
59 ms
i-posledniblognuti.png
599 ms
comment.gif
588 ms
nej.jpg
632 ms
i-nej.png
632 ms
section-header-imp.png
631 ms
i-novefotky.png
629 ms
more.gif
687 ms
e588a2c8f4c2ba5737e3f0961de6e017.gif
455 ms
lg.php
141 ms
ads
220 ms
osd.js
32 ms
section-header-column.png
573 ms
out.gif
615 ms
footer.png
616 ms
footer-illustration.png
610 ms
ads
214 ms
out-footer.gif
589 ms
loadingAnimation.gif
627 ms
css
67 ms
m_js_controller.js
34 ms
abg.js
38 ms
nessie_icon_tiamat_white.png
51 ms
s
40 ms
googlelogo_color_112x36dp.png
39 ms
favicon
83 ms
x_button_blue2.svg
13 ms
fBnyGA8Aionz5086-mElmoOSPUuyQ1M9Un647_EjucU.js
9 ms
Hgo13k-tfSpn0qi1SFdUfSZ2oysoEQEeKwjgmXLRnTc.ttf
51 ms
skolnistranky.cz 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
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
<frame> or <iframe> elements do not have a title
Form elements do not have associated labels
Links do not have a discernible name
<object> elements do not have alternate text
skolnistranky.cz 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
skolnistranky.cz 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
Document uses plugins
CS
CS
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Skolnistranky.cz can be misinterpreted by Google and other search engines. Our service has detected that Czech is used on the page, and it matches the claimed language. Our system also found out that Skolnistranky.cz 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.
skolnistranky.cz
Open Graph description is not detected on the main page of Skolnistranky. 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: