5.4 sec in total
521 ms
4.4 sec
547 ms
Welcome to jagg.cz homepage info - get ready to check Jagg best content right away, or after learning these important things about jagg.cz
Svět IT, dění na trhu, bezpečnost na internetu, připojení k internetu, mobilní internet, online média a reklama, cloudové služby.
Visit jagg.czWe analyzed Jagg.cz page load time and found that the first response time was 521 ms and then it took 4.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.
jagg.cz performance score
name
value
score
weighting
Value6.5 s
2/100
10%
Value14.1 s
0/100
25%
Value11.3 s
5/100
10%
Value2,070 ms
7/100
30%
Value0.009
100/100
15%
Value21.4 s
1/100
10%
521 ms
583 ms
1244 ms
66 ms
33 ms
Our browser made a total of 74 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Jagg.cz, 19% (14 requests) were made to F.lupa.cz and 16% (12 requests) were made to I.iinfo.cz. The less responsive or slowest element that took the longest time to load (1.5 sec) relates to the external source Spir.hit.gemius.pl.
Page size can be reduced by 1.0 MB (56%)
1.8 MB
806.8 kB
In fact, the total size of Jagg.cz main page is 1.8 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. HTML takes 943.3 kB which makes up the majority of the site volume.
Potential reduce by 677.8 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 677.8 kB or 72% of the original size.
Potential reduce by 0 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. Jagg images are well optimized though.
Potential reduce by 320.9 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 320.9 kB or 42% of the original size.
Potential reduce by 17.5 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. Jagg.cz needs all CSS files to be minified and compressed as it can save up to 17.5 kB or 26% of the original size.
Number of requests can be reduced by 42 (65%)
65
23
The browser has sent 65 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Jagg. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 36 to 1 for JavaScripts and from 8 to 1 for CSS and as a result speed up the page load time.
jagg.cz
521 ms
www.lupa.cz
583 ms
www.lupa.cz
1244 ms
gtm.js
66 ms
webfont.js
33 ms
css
47 ms
adsbygoogle.js
254 ms
jsloader-4a008e63b07f.js
618 ms
jsloader-1a8f4ee21833-jquery-2.1.4.min.js
733 ms
jsloader-9cb5005ab495.js
843 ms
strossle-widget-sdk.js
21 ms
sznrecommend-measure.min.js
446 ms
jsloader-ca3034917259-sprite.js
638 ms
jsloader-cc2622ed77ff.js
639 ms
css
57 ms
js
55 ms
analytics.js
30 ms
adsbygoogle.js
206 ms
jsloader-ab7bd2aef76f.js
638 ms
jizaRExUiTo99u79D0yEwA.ttf
35 ms
jizfRExUiTo99u79B_mh0OCtKA.ttf
36 ms
collect
104 ms
collect
152 ms
show_ads_impl.js
269 ms
ga-audiences
80 ms
css2
22 ms
jsloader-59a8931a4fe1-default.class.js
367 ms
jsloader-9c2b77edc069.js
388 ms
jsloader-bb7d4631e738.js
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jsloader-67932bbefbf2-sasLibs.js
472 ms
jsloader-bae93fb2c0dc-KeywordsFinder.js
482 ms
jsloader-f7046ae8ec91-app.js
521 ms
video-js.min.css
40 ms
videojs-contrib-ads.min.css
64 ms
videojs.ima.min.css
59 ms
video.min.js
68 ms
ima3.js
41 ms
videojs-contrib-ads.min.js
59 ms
videojs.ima.min.js
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nis2-smernice-nis.jpg
968 ms
1x1.gif
1075 ms
zrt_lookup.html
56 ms
cssloader-12f72f663845.css
262 ms
cpex-package.min.js
261 ms
xgemius.js
1457 ms
collect
61 ms
script.js
245 ms
615 ms
jak-to-vypada-v-roboticke-laboratori-amazonu-v-italskem-vercelli-11-prev.webp
1092 ms
jak-to-vypada-v-roboticke-laboratori-amazonu-v-italskem-vercelli-12-prev.webp
1273 ms
jak-to-vypada-v-roboticke-laboratori-amazonu-v-italskem-vercelli-13-prev.webp
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collect
102 ms
ads
185 ms
ga-audiences
101 ms
google-pixel-8-pro-obsidian-thumb.webp
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windows-11-thumb.jpg
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5-5-24-1x-vinar-deprese-smutek-thumb.webp
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teenager-dospivani-psychika-pohyb-sport-deti-thumb.webp
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17-7-23-1x-prekvapeni-sok-zena-thumb.jpg
1083 ms
cssloader-da2859424395.css
141 ms
links-eng-dunkel.svg
1030 ms
rechts-eng-dunkel.svg
1033 ms
runtime.2.10.5.js
314 ms
memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsjZ0C4n.ttf
67 ms
vEF72_JTCgwQ5ejvMV0Ox_Kg1UwJ0tKfX4zNpD8E4ASzH1r9gTuYzQ.ttf
171 ms
loader.js
667 ms
trackpoint-async.js
185 ms
lupa.cz
589 ms
targeting
63 ms
103 ms
103 ms
1.js
109 ms
2.js
216 ms
flexo.js
377 ms
jagg.cz accessibility score
ARIA
These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.
Impact
Issue
[aria-hidden="true"] elements contain focusable descendents
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
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
Links do not have a discernible name
jagg.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
Browser errors were logged to the console
Missing source maps for large first-party JavaScript
jagg.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
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 Jagg.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 Jagg.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.
jagg.cz
Open Graph data is detected on the main page of Jagg. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: