4.7 sec in total
657 ms
3.8 sec
194 ms
Visit o.invia.cz now to see the best up-to-date O Invia content for Czech Republic and also check out these interesting facts you probably never knew about o.invia.cz
Všechny důležité informace o Invia na jednom místě. Zjistěte o společnosti Invia.cz, a.s. více. Máme bohatou historii s mnoha úspěchy.
Visit o.invia.czWe analyzed O.invia.cz page load time and found that the first response time was 657 ms and then it took 4 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.
o.invia.cz performance score
name
value
score
weighting
Value5.7 s
5/100
10%
Value5.9 s
14/100
25%
Value5.7 s
51/100
10%
Value330 ms
76/100
30%
Value0
100/100
15%
Value6.3 s
61/100
10%
657 ms
441 ms
1009 ms
225 ms
226 ms
Our browser made a total of 72 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original O.invia.cz, 13% (9 requests) were made to Ssc.invia.cz and 6% (4 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (1 sec) relates to the external source Sc.invia.cz.
Page size can be reduced by 940.7 kB (68%)
1.4 MB
445.4 kB
In fact, the total size of O.invia.cz main page is 1.4 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. Javascripts take 1.0 MB which makes up the majority of the site volume.
Potential reduce by 29.5 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 29.5 kB or 75% of the original size.
Potential reduce by 428 B
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. O Invia images are well optimized though.
Potential reduce by 691.7 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 691.7 kB or 69% of the original size.
Potential reduce by 219.1 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. O.invia.cz needs all CSS files to be minified and compressed as it can save up to 219.1 kB or 81% of the original size.
Number of requests can be reduced by 51 (80%)
64
13
The browser has sent 64 CSS, Javascripts, AJAX and image requests in order to completely render the main page of O Invia. 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 as a result speed up the page load time.
657 ms
combined-style-subpages.css
441 ms
combined-desktop.js
1009 ms
autocomplete.js
225 ms
jquery.ui.stars.js
226 ms
spcjs.php
240 ms
conversion.js
19 ms
gan.js
227 ms
print.css
114 ms
spc.php
230 ms
fl.js
216 ms
tracking.js
113 ms
analytics.js
61 ms
logo-invia.png
122 ms
present_cz.png
326 ms
branch.jpg
143 ms
sprite-footer.png
220 ms
96 ms
icomoon.woff
295 ms
invia-cz
206 ms
fbds.js
36 ms
lg.php
128 ms
ga.js
41 ms
collect
75 ms
collect
66 ms
script_data.js
91 ms
127 ms
__utm.gif
15 ms
39 ms
localization.cs.1.21f44e20ea40d01a7aae370a76b8e6d8_cc1cd8eedce6dc763dc2d47ec125b30a.js
64 ms
ping
103 ms
open_chat.cgi
82 ms
livechat-modern_7cf45543dc.ttf
27 ms
view
100 ms
embedded.20160317113847.js
140 ms
sociomantic
310 ms
UserMatch.ashx
18 ms
sync.cgi
271 ms
rum
31 ms
u.php
123 ms
serve
71 ms
29 ms
pixel
123 ms
usersync
29 ms
match
27 ms
Pug
60 ms
info.php
188 ms
tg-03.yieldpartners.com
217 ms
41 ms
rum
35 ms
merge
14 ms
sd
36 ms
tap.php
45 ms
match
94 ms
match
162 ms
match
191 ms
match
410 ms
match
187 ms
match
393 ms
cm.gif
15 ms
mapuser
104 ms
match
110 ms
match
126 ms
match
199 ms
match
165 ms
sdk.js
24 ms
match
136 ms
54 ms
match
125 ms
xd_arbiter.php
20 ms
xd_arbiter.php
31 ms
xd_arbiter.php
20 ms
o.invia.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
Links do not have a discernible name
o.invia.cz best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
General
Impact
Issue
Detected JavaScript libraries
Missing source maps for large first-party JavaScript
o.invia.cz SEO score
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
CS
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise O.invia.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 O.invia.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.
o.invia.cz
Open Graph description is not detected on the main page of O Invia. 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: