Tools & Wizards About Us
usbpromo.cz screenshot

Report Summary

  • 46

    Performance

    Renders faster than
    65% of other websites

  • 91

    Accessibility

    Visual factors better than
    that of 76% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 100

    SEO

    Google-friendlier than
    94% of websites

usbpromo.cz

Reklamní USB flash disky s vlastním potiskem | usbpromo.cz

Page Load Speed

5.6 sec in total

First Response

308 ms

Resources Loaded

4.9 sec

Page Rendered

324 ms

usbpromo.cz screenshot

About Website

Visit usbpromo.cz now to see the best up-to-date USB Promo content and also check out these interesting facts you probably never knew about usbpromo.cz

Reklamní USB flash disky s vlastním potiskem, i expresně. Vyrobíme i netradiční USB flash disky pro vaše akce. Flešky skladem k dodání ihned, nejlevnější i od 128MB. USB klíče, karty. plastové, kovové...

Visit usbpromo.cz

Key Findings

We analyzed Usbpromo.cz page load time and found that the first response time was 308 ms and then it took 5.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.

Performance Metrics

usbpromo.cz performance score

46

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.5 s

34/100

10%

LCP (Largest Contentful Paint)

Value5.9 s

14/100

25%

SI (Speed Index)

Value5.2 s

61/100

10%

TBT (Total Blocking Time)

Value820 ms

35/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value5.2 s

74/100

10%

Network Requests Diagram

usbpromo.cz

308 ms

www.usbpromo.cz

3019 ms

rhcarousel.js

114 ms

jquery-1.7.2.min.js

333 ms

lightbox.js

220 ms

Our browser made a total of 94 requests to load all elements on the main page. We found that 55% of them (52 requests) were addressed to the original Usbpromo.cz, 11% (10 requests) were made to Apis.google.com and 4% (4 requests) were made to Platform.twitter.com. The less responsive or slowest element that took the longest time to load (3 sec) belongs to the original domain Usbpromo.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 427.9 kB (33%)

Content Size

1.3 MB

After Optimization

871.5 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Usbpromo.cz main page is 1.3 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 776.8 kB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 36.5 kB

  • Original 46.3 kB
  • After minification 42.7 kB
  • After compression 9.9 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 36.5 kB or 79% of the original size.

Image Optimization

-8%

Potential reduce by 64.4 kB

  • Original 776.8 kB
  • After minification 712.3 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. USB Promo images are well optimized though.

JavaScript Optimization

-64%

Potential reduce by 237.1 kB

  • Original 368.8 kB
  • After minification 364.7 kB
  • After compression 131.8 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 237.1 kB or 64% of the original size.

CSS Optimization

-84%

Potential reduce by 90.0 kB

  • Original 107.5 kB
  • After minification 106.9 kB
  • After compression 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. Usbpromo.cz needs all CSS files to be minified and compressed as it can save up to 90.0 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 31 (38%)

Requests Now

82

After Optimization

51

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 82 CSS, Javascripts, AJAX and image requests in order to completely render the main page of USB Promo. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 24 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

usbpromo.cz

usbpromo.cz

308 ms

www.usbpromo.cz

www.usbpromo.cz

3019 ms

rhcarousel.js

rhcarousel.js

114 ms

jquery-1.7.2.min.js

jquery-1.7.2.min.js

333 ms

lightbox.js

lightbox.js

220 ms

jquery.js

jquery.js

10 ms

style-table.js

style-table.js

221 ms

bootstrap.min.js

bootstrap.min.js

35 ms

bootstrap.min.css

bootstrap.min.css

361 ms

bootstrap.css

bootstrap.css

47 ms

rhcarousel.css

rhcarousel.css

219 ms

css-table.css

css-table.css

216 ms

bootstrap-responsive.css

bootstrap-responsive.css

48 ms

api.js

api.js

51 ms

button.js

button.js

168 ms

retargeting.js

retargeting.js

241 ms

bootstrap.min.js

bootstrap.min.js

39 ms

bootstrap.css

bootstrap.css

43 ms

bootstrap-responsive.css

bootstrap-responsive.css

43 ms

47 ms

45 ms

recaptcha__en.js

recaptcha__en.js

108 ms

fbevents.js

fbevents.js

30 ms

white-flickr.png

white-flickr.png

154 ms

usb-flash-eko.jpg

usb-flash-eko.jpg

375 ms

custom-usb-flesky.jpg

custom-usb-flesky.jpg

325 ms

usb-disk-smarttw.jpg

usb-disk-smarttw.jpg

337 ms

usb-spect.jpg

usb-spect.jpg

337 ms

usb-vizitka-karta.jpg

usb-vizitka-karta.jpg

379 ms

flash-disk-mk1.jpg

flash-disk-mk1.jpg

271 ms

mini-otocny-flash-disk.jpg

mini-otocny-flash-disk.jpg

576 ms

otocny-flash-disk.jpg

otocny-flash-disk.jpg

576 ms

flash-disk-kovovy.jpg

flash-disk-kovovy.jpg

578 ms

novy-kovovy-usb.jpg

novy-kovovy-usb.jpg

578 ms

cards-cf-compact-flash.jpg

cards-cf-compact-flash.jpg

663 ms

otocny-kovovy-flash-disk.jpg

otocny-kovovy-flash-disk.jpg

494 ms

usb-vizitka-karta.jpg

usb-vizitka-karta.jpg

605 ms

reklamni-usb-mk2.jpg

reklamni-usb-mk2.jpg

682 ms

flash-disk-mk1.jpg

flash-disk-mk1.jpg

680 ms

otocny-flash-disk.jpg

otocny-flash-disk.jpg

687 ms

flash-disk-kovovy.jpg

flash-disk-kovovy.jpg

689 ms

novy-kovovy-usb.jpg

novy-kovovy-usb.jpg

713 ms

otocny-kovovy-flash-disk.jpg

otocny-kovovy-flash-disk.jpg

775 ms

set-pero-usb-vizitky.jpg

set-pero-usb-vizitky.jpg

787 ms

usb-klic-cr.jpg

usb-klic-cr.jpg

790 ms

nejlevnejsi-usb-flash-disk-mini.jpg

nejlevnejsi-usb-flash-disk-mini.jpg

799 ms

fleshka-plastova-silver.jpg

fleshka-plastova-silver.jpg

800 ms

usb-otocny-dreveny.jpg

usb-otocny-dreveny.jpg

821 ms

flash-disk-smartphony-otoc.jpg

flash-disk-smartphony-otoc.jpg

885 ms

flash-disk-usb-k141-54.jpg

flash-disk-usb-k141-54.jpg

995 ms

usb-flash-disk-poutko-na-krk-127.jpg

usb-flash-disk-poutko-na-krk-127.jpg

897 ms

flash-disk-karta-kulata.jpg

flash-disk-karta-kulata.jpg

916 ms

usb-flash-disc-crystall.jpg

usb-flash-disc-crystall.jpg

917 ms

usb-flash-sklenicka.jpg

usb-flash-sklenicka.jpg

931 ms

fleska-mini-stylus-1.jpg

fleska-mini-stylus-1.jpg

996 ms

mini-usb-karabinka.jpg

mini-usb-karabinka.jpg

1004 ms

custom-usb-flesky.jpg

custom-usb-flesky.jpg

1014 ms

pretec-usb-odolny.jpg

pretec-usb-odolny.jpg

1016 ms

flash-tvary-na-prani.jpg

flash-tvary-na-prani.jpg

1040 ms

gtm.js

gtm.js

63 ms

ga.js

ga.js

35 ms

usb-tvar-logoprint.jpg

usb-tvar-logoprint.jpg

1092 ms

plusone.js

plusone.js

146 ms

feed-icon16x16.png

feed-icon16x16.png

129 ms

229 ms

widgets.js

widgets.js

61 ms

__utm.gif

__utm.gif

86 ms

retargeting

retargeting

130 ms

plusone.js

plusone.js

127 ms

button.0308b81ff1714e446f674b5b9793f2cd.js

button.0308b81ff1714e446f674b5b9793f2cd.js

110 ms

collect

collect

126 ms

cb=gapi.loaded_0

cb=gapi.loaded_0

18 ms

cb=gapi.loaded_1

cb=gapi.loaded_1

53 ms

follow

follow

137 ms

postmessageRelay

postmessageRelay

56 ms

usb-naramek-flash.jpg

usb-naramek-flash.jpg

844 ms

ga-audiences

ga-audiences

32 ms

follow_button.b9740740e0bcf9b0657c5b11bd4388da.cs.html

follow_button.b9740740e0bcf9b0657c5b11bd4388da.cs.html

27 ms

3193398744-postmessagerelay.js

3193398744-postmessagerelay.js

137 ms

rpc:shindig_random.js

rpc:shindig_random.js

66 ms

rs=AGLTcCNwHKn143wm8uVXWWc6PhYzSsgQiQ

rs=AGLTcCNwHKn143wm8uVXWWc6PhYzSsgQiQ

8 ms

rs=AGLTcCOJ4AMNA1EZSgGPzZnainRbXAPPWA

rs=AGLTcCOJ4AMNA1EZSgGPzZnainRbXAPPWA

15 ms

rs=AGLTcCOX1dgxpnBCP5P_YcNdANrxN4xrbA

rs=AGLTcCOX1dgxpnBCP5P_YcNdANrxN4xrbA

60 ms

pruhledne-ramecky.jpg

pruhledne-ramecky.jpg

792 ms

adapter-auto-3100.jpg

adapter-auto-3100.jpg

794 ms

usb-otg-42.jpg

usb-otg-42.jpg

761 ms

W5F8_SL0XFawnjxHGsZjJA.ttf

W5F8_SL0XFawnjxHGsZjJA.ttf

109 ms

dtpHsbgPEm2lVWciJZ0P-A.ttf

dtpHsbgPEm2lVWciJZ0P-A.ttf

120 ms

bdHGHleUa-ndQCOrdpfxfw.ttf

bdHGHleUa-ndQCOrdpfxfw.ttf

129 ms

propisky-s-plnobarevnym-potiskem.jpg

propisky-s-plnobarevnym-potiskem.jpg

783 ms

loading.gif

loading.gif

831 ms

cb=gapi.loaded_0

cb=gapi.loaded_0

31 ms

close.png

close.png

729 ms

jot.html

jot.html

3 ms

Accessibility Review

usbpromo.cz accessibility score

91

Accessibility Issues

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

Background and foreground colors do not have a sufficient contrast ratio.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Best Practices

usbpromo.cz best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

General

Impact

Issue

High

Browser errors were logged to the console

SEO Factors

usbpromo.cz SEO score

100

Search Engine Optimization Advices

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

High

Document uses legible font sizes

Language and Encoding

  • Language Detected

    CS

  • Language Claimed

    CS

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Usbpromo.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 Usbpromo.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.

Social Sharing Optimization

usbpromo.cz

Open Graph description is not detected on the main page of USB Promo. 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: