5.6 sec in total
398 ms
4 sec
1.2 sec
Welcome to ranka.cz homepage info - get ready to check Ranka best content right away, or after learning these important things about ranka.cz
Vítejte na stránkách Ranky Tučkové. Podívejte se na její tvorbu nebo se přijďte osobně podívat na některou z přednášek či seminářů.
Visit ranka.czWe analyzed Ranka.cz page load time and found that the first response time was 398 ms and then it took 5.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.
ranka.cz performance score
name
value
score
weighting
Value3.6 s
32/100
10%
Value3.6 s
61/100
25%
Value5.2 s
59/100
10%
Value1,130 ms
23/100
30%
Value0.046
99/100
15%
Value5.1 s
75/100
10%
398 ms
476 ms
756 ms
1058 ms
1228 ms
Our browser made a total of 77 requests to load all elements on the main page. We found that 51% of them (39 requests) were addressed to the original Ranka.cz, 32% (25 requests) were made to Static.xx.fbcdn.net and 12% (9 requests) were made to Scontent.xx.fbcdn.net. The less responsive or slowest element that took the longest time to load (1.7 sec) belongs to the original domain Ranka.cz.
Page size can be reduced by 82.5 kB (11%)
725.2 kB
642.7 kB
In fact, the total size of Ranka.cz main page is 725.2 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. 45% of websites need less resources to load. Images take 646.5 kB which makes up the majority of the site volume.
Potential reduce by 13.9 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 3.1 kB, which is 16% 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 13.9 kB or 75% of the original size.
Potential reduce by 33.9 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. Ranka images are well optimized though.
Potential reduce by 8.8 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 8.8 kB or 31% of the original size.
Potential reduce by 25.9 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. Ranka.cz needs all CSS files to be minified and compressed as it can save up to 25.9 kB or 82% of the original size.
Number of requests can be reduced by 25 (34%)
74
49
The browser has sent 74 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Ranka. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 19 to 1 for JavaScripts and from 8 to 1 for CSS and as a result speed up the page load time.
ranka.cz
398 ms
www.ranka.cz
476 ms
main.css
756 ms
list.css
1058 ms
slide.js
1228 ms
uni.js
1319 ms
back.jpg
124 ms
jin_jang.gif
136 ms
back_obs.jpg
134 ms
back_logo2.jpg
527 ms
face3.png
1497 ms
cara1px.jpg
270 ms
hledej.png
261 ms
kniha.jpg
261 ms
3vydani.png
492 ms
kniha2.jpg
351 ms
1060.jpg
352 ms
cd1.jpg
348 ms
cd6.jpg
490 ms
cd2.jpg
489 ms
cd3.jpg
482 ms
cd5.jpg
626 ms
banner-barva.jpg
613 ms
banner-karta.jpg
617 ms
1071.jpg
629 ms
1040.jpg
690 ms
1025.jpg
853 ms
tlac-seminare.jpg
854 ms
zlata_pravidla_f.jpg
1667 ms
tlac-kalendar.jpg
1079 ms
1121.jpg
1156 ms
868.jpg
1464 ms
923.jpg
1464 ms
931.jpg
1465 ms
kos_back1.jpg
1406 ms
kosik.png
1397 ms
vsechnyprod.png
1380 ms
back_obsah2.jpg
1378 ms
back75b.png
1378 ms
ga.js
54 ms
likebox.php
347 ms
__utm.gif
18 ms
bekMD-lCbkm.css
118 ms
sEpAygasRyW.css
144 ms
pNFjcHk9BOI.css
161 ms
XCdv7aD40Gm.js
315 ms
lnwXDK64af8.js
279 ms
mn6tHWuLI-Y.js
181 ms
x8BMxYCqTb9.js
191 ms
Fl_OEjo5L35.js
179 ms
UMeIUxuSxxa.js
455 ms
wRXOQ26LQ1k.js
428 ms
jOTDh_8cOj9.js
312 ms
VAFHT3WOlau.js
301 ms
xRbzcXUWYBl.js
429 ms
Pgc3fKJZhcQ.js
430 ms
K8Vhkfx1wbZ.js
659 ms
hOy0WYY2HjV.js
441 ms
HQOfxEpxsr8.js
656 ms
10363094_805394649540159_3906271771601262394_n.jpg
552 ms
1380006_542597715819855_1730504185_n.png
489 ms
12803053_10153954054744556_4020824254088869949_n.jpg
478 ms
10176067_773114272700714_7093682750357664008_n.jpg
543 ms
481126_249217335172164_716133159_n.jpg
454 ms
10443452_227904467419681_961791549632591751_n.jpg
499 ms
12195854_10203814930132875_420947536187853169_n.jpg
537 ms
11880327_10203354957834628_896985525385092568_n.jpg
525 ms
12240132_846755202112773_720905451465511041_n.jpg
538 ms
wL6VQj7Ab77.png
325 ms
s7jcwEQH7Sx.png
325 ms
css;base64,
20 ms
zKnBMXFoWrQ.css
66 ms
Jni112xWQqX.css
72 ms
8bAC_Ti0-BY.css
68 ms
yYpjf-HluYu.png
41 ms
VXcANLwwL5J.js
52 ms
50Trs1RKgUY.js
84 ms
ranka.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
<frame> or <iframe> elements do not have a title
Image elements do not have [alt] attributes
<input type="image"> elements do not have [alt] text
Form elements do not have associated labels
Links do not have a discernible name
Internationalization and localization
These are opportunities to improve the interpretation of your content by users in different locales.
Impact
Issue
<html> element does not have a [lang] attribute
ranka.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
General
Impact
Issue
Browser errors were logged to the console
ranka.cz 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
CS
N/A
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Ranka.cz can be misinterpreted by Google and other search engines. Our service has detected that Czech 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 Ranka.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.
ranka.cz
Open Graph description is not detected on the main page of Ranka. 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: