4.8 sec in total
349 ms
4.1 sec
432 ms
Click here to check amazing DoubleDRIVE content. Otherwise, check out these important facts you probably never knew about doubledrive.cz
Originál SPINNING program, skupinové lekce vedené certifikovanými instruktory, EMS systém posilování BODYTEC, individuální sportovní a relaxační masáže.
Visit doubledrive.czWe analyzed Doubledrive.cz page load time and found that the first response time was 349 ms and then it took 4.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.
doubledrive.cz performance score
name
value
score
weighting
Value4.4 s
16/100
10%
Value7.9 s
3/100
25%
Value10.4 s
8/100
10%
Value1,390 ms
16/100
30%
Value0.713
7/100
15%
Value11.0 s
21/100
10%
349 ms
920 ms
238 ms
242 ms
352 ms
Our browser made a total of 104 requests to load all elements on the main page. We found that 74% of them (77 requests) were addressed to the original Doubledrive.cz, 4% (4 requests) were made to S7.addthis.com and 4% (4 requests) were made to A.collective-media.net. The less responsive or slowest element that took the longest time to load (1.6 sec) belongs to the original domain Doubledrive.cz.
Page size can be reduced by 1.1 MB (38%)
2.9 MB
1.8 MB
In fact, the total size of Doubledrive.cz main page is 2.9 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. 70% of websites need less resources to load. Images take 1.4 MB which makes up the majority of the site volume.
Potential reduce by 150.5 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 150.5 kB or 78% of the original size.
Potential reduce by 32.0 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. DoubleDRIVE images are well optimized though.
Potential reduce by 693.2 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 693.2 kB or 67% of the original size.
Potential reduce by 219.0 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. Doubledrive.cz needs all CSS files to be minified and compressed as it can save up to 219.0 kB or 83% of the original size.
Number of requests can be reduced by 40 (41%)
97
57
The browser has sent 97 CSS, Javascripts, AJAX and image requests in order to completely render the main page of DoubleDRIVE. 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 7 to 1 for CSS and as a result speed up the page load time.
doubledrive.cz
349 ms
www.doubledrive.cz
920 ms
fbox.css
238 ms
nivo-slider.css
242 ms
mootools.js
352 ms
caption.js
242 ms
fbox_conf.js
245 ms
fbox_engine-min.js
245 ms
jquery.js
478 ms
jquery.nivo.slider.js
367 ms
system.css
374 ms
general.css
375 ms
style.css
375 ms
menu.css
490 ms
menu.js
508 ms
retargeting.js
347 ms
addthis_widget.js
17 ms
load.sumome.com
362 ms
dc.js
73 ms
background.jpg
1064 ms
startrac.gif
188 ms
logo_transparency.png
300 ms
fb.png
187 ms
sitemap.png
188 ms
reference.png
190 ms
loading.gif
300 ms
01_myzone_v2.jpg
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01_neomezen_v3.jpg
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02_bodytec_v1.jpg
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03_pilates_v2.jpg
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04_pecujte_v3_.jpg
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bodytec_corner.png
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spacer.gif
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ddc_2014__03.jpg
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news_vysledky.gif
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contactus2.gif
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zdarma_v2.png
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Purista%20Light.woff
1646 ms
retargeting
127 ms
KhhsTJfvc5Q
143 ms
__utm.gif
35 ms
300lo.json
35 ms
Purista_Medium.woff
1517 ms
clen_v2.png
1541 ms
dd__logo_2013_14_gr.png
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social_sprites_v2_fb.png
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sh.8e5f85691f9aaa082472a194.html
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www-embed-player-vflfNyN_r.css
90 ms
www-embed-player.js
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base.js
140 ms
layers.e5ea973510bf60b3db41.js
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cs.js
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social_sprites_v3_y.png
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datapair
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datapair
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datapair
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datapair
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fBnyGA8Aionz5086-mElmoOSPUuyQ1M9Un647_EjucU.js
84 ms
ad_status.js
31 ms
CrYjSnGjrRCn0pd9VQsnFOvvDin1pK8aKteLpeZ5c0A.woff
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RxZJdnzeo3R5zSexge8UUbO3LdcAZYWl9Si6vvxL-qU.woff
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pixel
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pixel
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social_sprites_v3_g.png
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ddc_partneri_high.png
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hervis.png
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swoosh_.png
1101 ms
startraclogo.png
998 ms
spin_118.png
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myzone-white-master_120.png
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logo_komora_120.png
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logo_zdrave_stravovani_rgb.png
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ddc_benefity_right_v.png
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ddc_motiv_varovani_640_.gif
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footer.gif
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oddelovaci_linka.jpg
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oddelovaci_linka_submenu.png
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spacer.gif
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indicator.gif
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fql
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count.json
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shares.json
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arrows.png
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bullets.png
137 ms
doubledrive.cz accessibility score
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
doubledrive.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
doubledrive.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
CS
CS
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Doubledrive.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 Doubledrive.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.
doubledrive.cz
Open Graph description is not detected on the main page of DoubleDRIVE. 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: