Tools & Wizards About Us
qr.cz screenshot

Report Summary

  • 69

    Performance

    Renders faster than
    80% of other websites

  • 69

    Accessibility

    Visual factors better than
    that of 34% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 69

    SEO

    Google-friendlier than
    28% of websites

qr.cz

Queer Research : softwarové novinky

Page Load Speed

3.5 sec in total

First Response

488 ms

Resources Loaded

2.6 sec

Page Rendered

397 ms

qr.cz screenshot

About Website

Click here to check amazing Qr content for Czech Republic. Otherwise, check out these important facts you probably never knew about qr.cz

Aktuální informace o nejnovějších programech a nástrojích nejen pro odborníky

Visit qr.cz

Key Findings

We analyzed Qr.cz page load time and found that the first response time was 488 ms and then it took 3 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.

Performance Metrics

qr.cz performance score

69

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.5 s

66/100

10%

LCP (Largest Contentful Paint)

Value2.7 s

86/100

25%

SI (Speed Index)

Value4.2 s

77/100

10%

TBT (Total Blocking Time)

Value690 ms

43/100

30%

CLS (Cumulative Layout Shift)

Value0.003

100/100

15%

TTI (Time to Interactive)

Value7.1 s

52/100

10%

Network Requests Diagram

qr.cz

488 ms

www.qr.cz

995 ms

style2003.css

295 ms

divstyle.css

534 ms

ipa.gif

569 ms

Our browser made a total of 64 requests to load all elements on the main page. We found that 89% of them (57 requests) were addressed to the original Qr.cz, 5% (3 requests) were made to Googleads.g.doubleclick.net and 3% (2 requests) were made to Pagead2.googlesyndication.com. The less responsive or slowest element that took the longest time to load (995 ms) belongs to the original domain Qr.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 71.6 kB (19%)

Content Size

369.7 kB

After Optimization

298.0 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Qr.cz main page is 369.7 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 15% of websites need less resources to load. Javascripts take 253.5 kB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 66.7 kB

  • Original 88.2 kB
  • After minification 85.7 kB
  • After compression 21.4 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 66.7 kB or 76% of the original size.

Image Optimization

-0%

Potential reduce by 87 B

  • Original 23.3 kB
  • After minification 23.2 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. Qr images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 1.2 kB

  • Original 253.5 kB
  • After minification 253.4 kB
  • After compression 252.3 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. This website has mostly compressed JavaScripts.

CSS Optimization

-77%

Potential reduce by 3.6 kB

  • Original 4.7 kB
  • After minification 3.5 kB
  • After compression 1.1 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. Qr.cz needs all CSS files to be minified and compressed as it can save up to 3.6 kB or 77% of the original size.

Requests Breakdown

Number of requests can be reduced by 26 (43%)

Requests Now

60

After Optimization

34

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 60 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Qr. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

qr.cz

qr.cz

488 ms

www.qr.cz

www.qr.cz

995 ms

style2003.css

style2003.css

295 ms

divstyle.css

divstyle.css

534 ms

ipa.gif

ipa.gif

569 ms

ict.gif

ict.gif

569 ms

ist.gif

ist.gif

479 ms

iut.gif

iut.gif

655 ms

ipo.gif

ipo.gif

478 ms

ine.gif

ine.gif

537 ms

iso.gif

iso.gif

538 ms

code.js

code.js

356 ms

adsbygoogle.js

adsbygoogle.js

117 ms

ga.js

ga.js

30 ms

s_maxleft.gif

s_maxleft.gif

359 ms

s_left.gif

s_left.gif

460 ms

s_right.gif

s_right.gif

461 ms

s_maxright.gif

s_maxright.gif

462 ms

t_tip.gif

t_tip.gif

464 ms

del01date.gif

del01date.gif

466 ms

del02date.gif

del02date.gif

556 ms

bc04.gif

bc04.gif

298 ms

c_comm.gif

c_comm.gif

298 ms

kolo.jpg

kolo.jpg

303 ms

podpis.gif

podpis.gif

301 ms

_news.gif

_news.gif

302 ms

_links.gif

_links.gif

430 ms

_search.gif

_search.gif

431 ms

_download.gif

_download.gif

431 ms

_board.gif

_board.gif

432 ms

_feedback.gif

_feedback.gif

432 ms

_about.gif

_about.gif

432 ms

_archiv.gif

_archiv.gif

485 ms

_refresh.gif

_refresh.gif

488 ms

delimiter.gif

delimiter.gif

487 ms

kolo01.jpg

kolo01.jpg

491 ms

header00.jpg

header00.jpg

490 ms

header01.jpg

header01.jpg

491 ms

setrefresh.gif

setrefresh.gif

580 ms

sethomepage.gif

sethomepage.gif

581 ms

setbookmark.gif

setbookmark.gif

589 ms

spacer.gif

spacer.gif

559 ms

_pool.gif

_pool.gif

495 ms

_adm.gif

_adm.gif

494 ms

_newsa.gif

_newsa.gif

583 ms

_linksa.gif

_linksa.gif

585 ms

_downloada.gif

_downloada.gif

588 ms

_boarda.gif

_boarda.gif

589 ms

_feedbacka.gif

_feedbacka.gif

590 ms

show_ads_impl.js

show_ads_impl.js

250 ms

_abouta.gif

_abouta.gif

545 ms

__utm.gif

__utm.gif

28 ms

_poola.gif

_poola.gif

575 ms

_archiva.gif

_archiva.gif

575 ms

_refresha.gif

_refresha.gif

576 ms

_adma.gif

_adma.gif

577 ms

_searcha.gif

_searcha.gif

575 ms

bc01.gif

bc01.gif

576 ms

bc05.gif

bc05.gif

574 ms

bc03.gif

bc03.gif

574 ms

bc06.gif

bc06.gif

576 ms

zrt_lookup.html

zrt_lookup.html

44 ms

ads

ads

42 ms

ads

ads

33 ms

Accessibility Review

qr.cz accessibility score

69

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

[id] attributes on active, focusable elements are not unique

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

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

High

Image elements do not have [alt] attributes

High

Form elements do not have associated labels

High

Links do not have a discernible name

Best Practices

qr.cz best practices score

67

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

Serves images with low resolution

General

Impact

Issue

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

qr.cz SEO score

69

Search Engine Optimization Advices

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Image elements do not have [alt] attributes

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 Qr.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 Qr.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

qr.cz

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