12 sec in total
1.5 sec
10 sec
456 ms
Visit vydavatelstvi.vscht.cz now to see the best up-to-date Vydavatelstvi Vscht content for Czech Republic and also check out these interesting facts you probably never knew about vydavatelstvi.vscht.cz
Visit vydavatelstvi.vscht.czWe analyzed Vydavatelstvi.vscht.cz page load time and found that the first response time was 1.5 sec and then it took 10.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.
vydavatelstvi.vscht.cz performance score
name
value
score
weighting
Value7.9 s
0/100
10%
Value9.5 s
0/100
25%
Value11.1 s
6/100
10%
Value790 ms
37/100
30%
Value1
2/100
15%
Value12.9 s
13/100
10%
1537 ms
213 ms
353 ms
367 ms
381 ms
Our browser made a total of 42 requests to load all elements on the main page. We found that 64% of them (27 requests) were addressed to the original Vydavatelstvi.vscht.cz, 24% (10 requests) were made to Google.com and 7% (3 requests) were made to Cse.google.com. The less responsive or slowest element that took the longest time to load (8.2 sec) belongs to the original domain Vydavatelstvi.vscht.cz.
Page size can be reduced by 230.4 kB (10%)
2.2 MB
2.0 MB
In fact, the total size of Vydavatelstvi.vscht.cz main page is 2.2 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. 45% of websites need less resources to load. Images take 1.9 MB which makes up the majority of the site volume.
Potential reduce by 32.4 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. 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 32.4 kB or 76% of the original size.
Potential reduce by 60.6 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. Vydavatelstvi Vscht images are well optimized though.
Potential reduce by 122.3 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 122.3 kB or 47% of the original size.
Potential reduce by 15.1 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. Vydavatelstvi.vscht.cz needs all CSS files to be minified and compressed as it can save up to 15.1 kB or 81% of the original size.
Number of requests can be reduced by 10 (29%)
35
25
The browser has sent 35 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Vydavatelstvi Vscht. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.
vydavatelstvi.vscht.cz
1537 ms
jquery.fancybox.css
213 ms
aio.css
353 ms
jquery-1.11.0.min.js
367 ms
jquery.fancybox.js
381 ms
run.js
241 ms
biochemie.png
7733 ms
Web_logo_3.gif
236 ms
i3L09ol39nD19fRzjw-LDPB3DgmNLyhKTcnL1M1PSszJTgQA.jpg
3588 ms
80rMji8oSq1KzSvJL0ssUdBVAPJS8jJ185MSc7ITAQ.jpg
4690 ms
83F08g-Kd_TzD3J39gAA.jpg
488 ms
y0itLMovK86ujM9PSszJTgQA.jpg
5062 ms
ORGANIKA-obalka-web.jpg
643 ms
BIOCHEMIE_predni-obalka-pro-web.jpg
976 ms
HYDROCHEMIE_predni-obalka-pro-web.jpg
1243 ms
Chemick%C3%A1%20dobrodru%C5%BEstv%C3%AD%20-%20ob%C3%A1lka.jpg
3245 ms
FARMAKOCHEMIE_potahII_p%C5%99edn%C3%AD-ob%C3%A1lka.jpg
3763 ms
FARMASL_potah_ok.png
4399 ms
TOXIKO_potah_ok_tisk.png
6271 ms
UPRVODY_potah_Str%C3%A1nka_3.png
5719 ms
HousecroftANORG_prebal.png
8186 ms
pata_mapa.png
5166 ms
SourceSansPro-Regular.woff
5520 ms
vscht.woff
5279 ms
cse.js
83 ms
studenti29.jpg
6418 ms
SourceSansPro-Light.woff
5500 ms
ga.js
44 ms
cse.js
65 ms
SourceSansPro-Bold.woff
5738 ms
__utm.gif
25 ms
jsapi
29 ms
default+cs.css
5 ms
default.css
38 ms
default+cs.I.js
18 ms
default.css
37 ms
async-ads.js
36 ms
google_custom_search_watermark.gif
34 ms
small-logo.png
17 ms
search_box_icon.png
17 ms
clear.gif
17 ms
nav_logo114.png
19 ms
vydavatelstvi.vscht.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.
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
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
Best practices
These items highlight common accessibility best practices.
Impact
Issue
[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.
vydavatelstvi.vscht.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
General
Impact
Issue
Detected JavaScript libraries
vydavatelstvi.vscht.cz 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
CS
N/A
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Vydavatelstvi.vscht.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 Vydavatelstvi.vscht.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.
vydavatelstvi.vscht.cz
Open Graph description is not detected on the main page of Vydavatelstvi Vscht. 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: