2.3 sec in total
359 ms
1.8 sec
135 ms
Welcome to aldebaran.cz homepage info - get ready to check Aldebaran best content for Czech Republic right away, or after learning these important things about aldebaran.cz
Server věnovaný fyzice a astronomii
Visit aldebaran.czWe analyzed Aldebaran.cz page load time and found that the first response time was 359 ms and then it took 1.9 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 35% of websites can load faster.
aldebaran.cz performance score
name
value
score
weighting
Value3.3 s
41/100
10%
Value3.6 s
61/100
25%
Value4.0 s
81/100
10%
Value10 ms
100/100
30%
Value0
100/100
15%
Value3.6 s
91/100
10%
359 ms
118 ms
234 ms
465 ms
236 ms
Our browser made a total of 42 requests to load all elements on the main page. We found that 95% of them (40 requests) were addressed to the original Aldebaran.cz, 5% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (801 ms) belongs to the original domain Aldebaran.cz.
Page size can be reduced by 112.9 kB (38%)
297.5 kB
184.6 kB
In fact, the total size of Aldebaran.cz main page is 297.5 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. 20% of websites need less resources to load. Images take 148.5 kB which makes up the majority of the site volume.
Potential reduce by 11.2 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 11.2 kB or 75% of the original size.
Potential reduce by 6.2 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. Aldebaran images are well optimized though.
Potential reduce by 73.8 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 73.8 kB or 68% of the original size.
Potential reduce by 21.6 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. Aldebaran.cz needs all CSS files to be minified and compressed as it can save up to 21.6 kB or 84% of the original size.
Number of requests can be reduced by 13 (32%)
41
28
The browser has sent 41 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Aldebaran. 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 as a result speed up the page load time.
aldebaran.cz
359 ms
ald.css
118 ms
ald.js
234 ms
highslide.js
465 ms
highslide.config.js
236 ms
highslide.css
239 ms
ald_small_b.gif
119 ms
ald_small_a.gif
119 ms
analytics.js
28 ms
aldmenu_light.php
123 ms
bg_frost.jpg
119 ms
corner_w1.gif
119 ms
corner_w2.gif
117 ms
ru_1.gif
120 ms
flag_uk.gif
222 ms
flag_es.gif
231 ms
flag_cz.gif
232 ms
logo_kniha.gif
235 ms
server_map.png
238 ms
logo.png
595 ms
2015_Rokycany.gif
337 ms
2015_mft.png
345 ms
lecture_videos.jpg
346 ms
logo_100.png
469 ms
logo.png
595 ms
kosmonaut_16.gif
460 ms
2016-odysea_th.jpg
575 ms
triko_ch.png
578 ms
afsv_250_dotisk.jpg
801 ms
poweredby.gif
586 ms
ru_2.gif
690 ms
corner_w4.gif
692 ms
corner_w3.gif
703 ms
collect
11 ms
aldmenu.css
347 ms
ald.js
352 ms
ald_small_a.gif
120 ms
bg_block.gif
120 ms
wwwcount.cgi
351 ms
custom.png
117 ms
zoomout.cur
119 ms
loader.white.gif
120 ms
aldebaran.cz 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.
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
Form elements do not have associated labels
Links do not have a discernible name
aldebaran.cz best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
User Experience
Impact
Issue
Serves images with low resolution
aldebaran.cz SEO score
CS
CS
WINDOWS-1250
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Aldebaran.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 Aldebaran.cz main page’s claimed encoding is windows-1250. 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.
aldebaran.cz
Open Graph description is not detected on the main page of Aldebaran. 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: