5.4 sec in total
327 ms
4.8 sec
352 ms
Click here to check amazing HD Systems content. Otherwise, check out these important facts you probably never knew about hdsystems.cz
Obchod s profesionálními kamerovými systémy, kamerové sety, záznamové zařízení, IP kamery, AHD, CVI, 4 megapixel
Visit hdsystems.czWe analyzed Hdsystems.cz page load time and found that the first response time was 327 ms and then it took 5.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.
hdsystems.cz performance score
name
value
score
weighting
Value3.9 s
25/100
10%
Value7.9 s
3/100
25%
Value8.3 s
19/100
10%
Value1,180 ms
21/100
30%
Value0.005
100/100
15%
Value9.5 s
30/100
10%
327 ms
913 ms
255 ms
599 ms
25 ms
Our browser made a total of 52 requests to load all elements on the main page. We found that 75% of them (39 requests) were addressed to the original Hdsystems.cz, 6% (3 requests) were made to Google-analytics.com and 4% (2 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (2.3 sec) belongs to the original domain Hdsystems.cz.
Page size can be reduced by 533.2 kB (21%)
2.6 MB
2.1 MB
In fact, the total size of Hdsystems.cz main page is 2.6 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. 65% of websites need less resources to load. Images take 1.9 MB which makes up the majority of the site volume.
Potential reduce by 77.1 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 77.1 kB or 82% of the original size.
Potential reduce by 37.0 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. HD Systems images are well optimized though.
Potential reduce by 211.7 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 211.7 kB or 68% of the original size.
Potential reduce by 207.5 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. Hdsystems.cz needs all CSS files to be minified and compressed as it can save up to 207.5 kB or 83% of the original size.
Number of requests can be reduced by 4 (9%)
46
42
The browser has sent 46 CSS, Javascripts, AJAX and image requests in order to completely render the main page of HD Systems. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and as a result speed up the page load time.
hdsystems.cz
327 ms
913 ms
v_543_db3a974f98c511b0b501197dbb19591a_all.css
255 ms
v_323_1922d409589ffd211051c55bc9a2b052.js
599 ms
css
25 ms
hd-systems-logo-1450013016.jpg
158 ms
a1906a833fac2c1a6815498e33932312f8c8b9e2_banner2.png
623 ms
4d84b2876e34a30d51ad7a1b1cfb5ffab5884094_banner5.png
1036 ms
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1032 ms
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1031 ms
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1039 ms
kamerovy-system-kamerovy-set-hd-ahd400229ah-4ch-dvr.jpg
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utp-kabel-cat5.jpg
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all.js
37 ms
analytics.js
35 ms
footer-bg.png
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bx_loader.gif
2075 ms
price-container-bg.png
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ec.js
29 ms
fontawesome-webfont.woff
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MTP_ySUJH_bn48VBG8sNStqQynqKV_9Plp7mupa0S4g.ttf
12 ms
DXI1ORHCpsQm3Vp6mXoaTdqQynqKV_9Plp7mupa0S4g.ttf
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20 ms
xd_arbiter.php
166 ms
xd_arbiter.php
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widget_v2.135.js
37 ms
avatar_simple_visitor.png
87 ms
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3 ms
hdsystems.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
Buttons do not have an accessible name
Form elements do not have associated labels
Links do not have a discernible name
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
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.
hdsystems.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
hdsystems.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
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Hdsystems.cz can be misinterpreted by Google and other search engines. Our service has detected that Czech is used on the page, and it does not match the claimed English language. Our system also found out that Hdsystems.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.
hdsystems.cz
Open Graph data is detected on the main page of HD Systems. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: