3.8 sec in total
304 ms
3.3 sec
193 ms
Visit o2family.cz now to see the best up-to-date O2 Family content for Czech Republic and also check out these interesting facts you probably never knew about o2family.cz
. Zobrazit nabídku O2 Family.
Visit o2family.czWe analyzed O2family.cz page load time and found that the first response time was 304 ms and then it took 3.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.
o2family.cz performance score
name
value
score
weighting
Value4.1 s
21/100
10%
Value10.2 s
0/100
25%
Value8.3 s
19/100
10%
Value510 ms
57/100
30%
Value0.012
100/100
15%
Value10.3 s
24/100
10%
304 ms
693 ms
71 ms
287 ms
288 ms
Our browser made a total of 39 requests to load all elements on the main page. We found that 67% of them (26 requests) were addressed to the original O2family.cz, 8% (3 requests) were made to Fonts.gstatic.com and 8% (3 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (1.6 sec) belongs to the original domain O2family.cz.
Page size can be reduced by 1.0 MB (65%)
1.6 MB
560.4 kB
In fact, the total size of O2family.cz main page is 1.6 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. 35% of websites need less resources to load. Images take 1.2 MB which makes up the majority of the site volume.
Potential reduce by 10.9 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. 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 10.9 kB or 75% of the original size.
Potential reduce by 771.5 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. Obviously, O2 Family needs image optimization as it can save up to 771.5 kB or 64% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 172.1 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 172.1 kB or 60% of the original size.
Potential reduce by 64.0 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. O2family.cz needs all CSS files to be minified and compressed as it can save up to 64.0 kB or 80% of the original size.
Number of requests can be reduced by 20 (59%)
34
14
The browser has sent 34 CSS, Javascripts, AJAX and image requests in order to completely render the main page of O2 Family. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 17 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.
o2family.cz
304 ms
www.o2family.cz
693 ms
css
71 ms
owl.carousel.css
287 ms
owl.theme.custom.css
288 ms
style.css
385 ms
plugin.css
288 ms
jquery.min.js
76 ms
jquery.matchHeight-min.js
290 ms
jquery.magnific-popup.min.js
424 ms
validatr.min.js
574 ms
jquery.autocomplete.min.js
578 ms
owl.carousel.min.js
669 ms
accordion.js
582 ms
common.js
684 ms
cs.lang.js
878 ms
cs.js
861 ms
plugin.js
859 ms
form.js
867 ms
form.js
953 ms
o2logo.png
564 ms
260x160-px-dver-e-vstupte-bez-buble.png
1596 ms
eshop.png
1603 ms
isam.png
1607 ms
gtm.js
110 ms
header.png
752 ms
vyhody-1920x360.jpg
1275 ms
dino-fin.jpg
1517 ms
logo-footer.png
1033 ms
DXI1ORHCpsQm3Vp6mXoaTdqQynqKV_9Plp7mupa0S4g.ttf
28 ms
u-WUoqrET9fUeobQW7jkRaCWcynf_cDxXwCLxiixG1c.ttf
39 ms
MTP_ySUJH_bn48VBG8sNStqQynqKV_9Plp7mupa0S4g.ttf
40 ms
analytics.js
56 ms
activityi;src=4719604;type=o2visit;cat=o2famvis;u1=https%3A%2F%2Fwww.o2family.cz%2F;ord=2327676441241;~oref=https%3A%2F%2Fwww.o2family.cz%2F
69 ms
linkid.js
10 ms
collect
10 ms
collect
59 ms
fbevents.js
177 ms
123 ms
o2family.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
Image elements do not have [alt] attributes
o2family.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
Browser errors were logged to the console
Page has valid source maps
o2family.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
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
CS
CS
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise O2family.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 O2family.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.
o2family.cz
Open Graph data is detected on the main page of O2 Family. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: