2.8 sec in total
338 ms
2.3 sec
93 ms
Welcome to vca.postsignum.cz homepage info - get ready to check Vca Post Signum best content for Czech Republic right away, or after learning these important things about vca.postsignum.cz
Certifikační autorita PostSignum
Visit vca.postsignum.czWe analyzed Vca.postsignum.cz page load time and found that the first response time was 338 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.
vca.postsignum.cz performance score
name
value
score
weighting
Value2.9 s
53/100
10%
Value8.8 s
1/100
25%
Value6.0 s
46/100
10%
Value90 ms
98/100
30%
Value0.001
100/100
15%
Value7.5 s
48/100
10%
338 ms
575 ms
328 ms
220 ms
544 ms
Our browser made a total of 51 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Vca.postsignum.cz, 96% (49 requests) were made to Postsignum.cz and 2% (1 request) were made to Translate.google.com. The less responsive or slowest element that took the longest time to load (882 ms) relates to the external source Postsignum.cz.
Page size can be reduced by 267.8 kB (36%)
735.9 kB
468.1 kB
In fact, the total size of Vca.postsignum.cz main page is 735.9 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. 30% of websites need less resources to load. Images take 416.9 kB which makes up the majority of the site volume.
Potential reduce by 23.4 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 9.5 kB, which is 33% 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 23.4 kB or 81% of the original size.
Potential reduce by 31.0 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. Vca Post Signum images are well optimized though.
Potential reduce by 163.2 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 163.2 kB or 71% of the original size.
Potential reduce by 50.2 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. Vca.postsignum.cz needs all CSS files to be minified and compressed as it can save up to 50.2 kB or 83% of the original size.
Number of requests can be reduced by 22 (46%)
48
26
The browser has sent 48 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Vca Post Signum. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and as a result speed up the page load time.
vca.postsignum.cz
338 ms
575 ms
ceskaposta_screen.css
328 ms
ceskaposta_home.css
220 ms
jquery-1.7.1.min.js
544 ms
jquery.roundabout.min.js
356 ms
jquery.roundabout-shapes.min.js
222 ms
jquery.js
437 ms
jquery-scripts.js
355 ms
jquery.cycle.all.js
557 ms
element.js
43 ms
bg-all.gif
114 ms
bg-all-top.gif
113 ms
postsignum_logo2.jpg
111 ms
dot-v.gif
234 ms
flag-cz.gif
234 ms
flag-en.gif
235 ms
ico-contacts.gif
235 ms
bg-menu.gif
312 ms
arrow_right.gif
318 ms
bg-main.gif
332 ms
bg-box-top.gif
333 ms
bg-box-bot.gif
333 ms
bod.gif
334 ms
gen_ico.gif
423 ms
sml_ico.gif
428 ms
down_ico.gif
444 ms
obnov_ico.gif
442 ms
tsa_ico.gif
444 ms
obchod_ico.gif
444 ms
dot-h.gif
533 ms
square-li-dark.gif
538 ms
Portal_uvod.jpg
660 ms
uvod_3r.jpg
556 ms
Uvod_MRA.jpg
664 ms
uvod_250.jpg
555 ms
SW602_Signer_uvod.jpg
643 ms
ProID_QSeal_uvod.jpg
864 ms
uvod_CO.jpg
882 ms
arrow_trans.png
667 ms
eidas_logo.png
754 ms
rss.gif
761 ms
box-back.jpg
545 ms
box-top.jpg
549 ms
box-bottom.jpg
637 ms
sipka-doprava.gif
653 ms
bg-box-top_col2.gif
657 ms
bg-box-bot_col2.gif
659 ms
ico-aktualita.gif
746 ms
bg-all-bottom.gif
746 ms
ceskaposta_tisk.css
112 ms
vca.postsignum.cz accessibility score
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>).
vca.postsignum.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
vca.postsignum.cz SEO score
CS
CS
ISO-8859-2
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Vca.postsignum.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 Vca.postsignum.cz 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.
vca.postsignum.cz
Open Graph description is not detected on the main page of Vca Post Signum. 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: