Tools & Wizards About Us
instaluj.cz screenshot

Report Summary

  • 27

    Performance

    Renders faster than
    46% of other websites

  • 85

    Accessibility

    Visual factors better than
    that of 58% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 91

    SEO

    Google-friendlier than
    70% of websites

instaluj.cz

INSTALUJ.cz - programy ke stažení zdarma

Page Load Speed

22.9 sec in total

First Response

297 ms

Resources Loaded

22.4 sec

Page Rendered

150 ms

instaluj.cz screenshot

About Website

Visit instaluj.cz now to see the best up-to-date INSTALUJ content for Czech Republic and also check out these interesting facts you probably never knew about instaluj.cz

Přehledný katalog software. Vyberte si z nabídky: antiviry, spyware, hry, software audio, software video, kodeky, tvorba obalů, foto, design, vzdělávání, podnikání a kancelář, domácnost, zábava, inter...

Visit instaluj.cz

Key Findings

We analyzed Instaluj.cz page load time and found that the first response time was 297 ms and then it took 22.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 95% of websites can load faster. Unfortunately, there were 2 request timeouts, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

instaluj.cz performance score

27

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.4 s

17/100

10%

LCP (Largest Contentful Paint)

Value5.1 s

24/100

25%

SI (Speed Index)

Value17.7 s

0/100

10%

TBT (Total Blocking Time)

Value1,730 ms

10/100

30%

CLS (Cumulative Layout Shift)

Value0.007

100/100

15%

TTI (Time to Interactive)

Value13.6 s

11/100

10%

Network Requests Diagram

instaluj.cz

297 ms

www.instaluj.cz

1150 ms

js

87 ms

jquery-1.7.1.min.js

128 ms

bjqs-1.3.min.js

217 ms

Our browser made a total of 92 requests to load all elements on the main page. We found that 47% of them (43 requests) were addressed to the original Instaluj.cz, 9% (8 requests) were made to Pagead2.googlesyndication.com and 9% (8 requests) were made to Tpc.googlesyndication.com. The less responsive or slowest element that took the longest time to load (20.4 sec) relates to the external source Toplist.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 150.1 kB (13%)

Content Size

1.2 MB

After Optimization

1.0 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Instaluj.cz main page is 1.2 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. Javascripts take 661.1 kB which makes up the majority of the site volume.

HTML Optimization

-73%

Potential reduce by 63.5 kB

  • Original 86.9 kB
  • After minification 86.2 kB
  • After compression 23.4 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 63.5 kB or 73% of the original size.

Image Optimization

-3%

Potential reduce by 13.8 kB

  • Original 403.0 kB
  • After minification 389.1 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. INSTALUJ images are well optimized though.

JavaScript Optimization

-10%

Potential reduce by 68.6 kB

  • Original 661.1 kB
  • After minification 661.1 kB
  • After compression 592.4 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

-33%

Potential reduce by 4.1 kB

  • Original 12.7 kB
  • After minification 12.7 kB
  • After compression 8.6 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. Instaluj.cz needs all CSS files to be minified and compressed as it can save up to 4.1 kB or 33% of the original size.

Requests Breakdown

Number of requests can be reduced by 38 (46%)

Requests Now

83

After Optimization

45

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 83 CSS, Javascripts, AJAX and image requests in order to completely render the main page of INSTALUJ. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 29 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

instaluj.cz

instaluj.cz

297 ms

www.instaluj.cz

www.instaluj.cz

1150 ms

js

js

87 ms

jquery-1.7.1.min.js

jquery-1.7.1.min.js

128 ms

bjqs-1.3.min.js

bjqs-1.3.min.js

217 ms

jquery.mousewheel-3.0.4.pack.js

jquery.mousewheel-3.0.4.pack.js

309 ms

jquery.fancybox-1.3.4.pack.js

jquery.fancybox-1.3.4.pack.js

311 ms

api.js

api.js

44 ms

redakce.css

redakce.css

313 ms

redakce.js

redakce.js

311 ms

js

js

69 ms

adsbygoogle.js

adsbygoogle.js

136 ms

pub-7856024148306630

pub-7856024148306630

74 ms

js

js

110 ms

pub-7856024148306630

pub-7856024148306630

106 ms

seznam_prohlizec_banner2.jpg

seznam_prohlizec_banner2.jpg

190 ms

logo-instaluj-click1060.png

logo-instaluj-click1060.png

108 ms

search.gif

search.gif

108 ms

logo-instaluj-click.png

logo-instaluj-click.png

108 ms

logo-antivirus.png

logo-antivirus.png

108 ms

top.png

top.png

154 ms

3225.png

3225.png

280 ms

3224.jpg

3224.jpg

281 ms

3223.jpg

3223.jpg

281 ms

3216.jpg

3216.jpg

281 ms

3137.png

3137.png

407 ms

32416.jpg

32416.jpg

280 ms

28585.jpg

28585.jpg

377 ms

20470.png

20470.png

378 ms

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20474.jpg

379 ms

35186.png

35186.png

378 ms

20491.png

20491.png

379 ms

20472.jpg

20472.jpg

466 ms

23818.jpg

23818.jpg

465 ms

23441.png

23441.png

466 ms

20468.jpg

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466 ms

29738.jpg

29738.jpg

467 ms

23365.jpg

23365.jpg

493 ms

32717.png

32717.png

558 ms

29741.jpg

29741.jpg

558 ms

22963.jpg

22963.jpg

558 ms

user.png

user.png

559 ms

show_ads_impl.js

show_ads_impl.js

234 ms

analytics.js

analytics.js

38 ms

collect

collect

18 ms

logo-lista-instaluj1060.jpg

logo-lista-instaluj1060.jpg

384 ms

zalozka-aktiv2020.jpg

zalozka-aktiv2020.jpg

410 ms

zalozka-2020-4.jpg

zalozka-2020-4.jpg

474 ms

zalozka-2020-mh2.jpg

zalozka-2020-mh2.jpg

475 ms

like.php

like.php

199 ms

collect

collect

32 ms

dot.asp

dot.asp

20402 ms

dot.asp

dot.asp

20383 ms

rum.js

rum.js

33 ms

zrt_lookup.html

zrt_lookup.html

37 ms

ads

ads

397 ms

fancybox.png

fancybox.png

289 ms

fancybox-x.png

fancybox-x.png

289 ms

fancybox-y.png

fancybox-y.png

290 ms

blank.gif

blank.gif

316 ms

ads

ads

457 ms

syD5r58azVO.js

syD5r58azVO.js

26 ms

FEppCFCt76d.png

FEppCFCt76d.png

23 ms

ads

ads

514 ms

ads

ads

454 ms

reactive_library.js

reactive_library.js

158 ms

ca-pub-7856024148306630

ca-pub-7856024148306630

51 ms

3b0c1a1c8750041eb27603629860e89a.js

3b0c1a1c8750041eb27603629860e89a.js

35 ms

load_preloaded_resource.js

load_preloaded_resource.js

62 ms

f11bfab4e3c942216447974439595ef6.js

f11bfab4e3c942216447974439595ef6.js

47 ms

abg_lite.js

abg_lite.js

63 ms

window_focus.js

window_focus.js

78 ms

qs_click_protection.js

qs_click_protection.js

94 ms

ufs_web_display.js

ufs_web_display.js

62 ms

bbcd6bf18c20baa1b2adeb195de9b551.js

bbcd6bf18c20baa1b2adeb195de9b551.js

78 ms

icon.png

icon.png

17 ms

s

s

189 ms

8572588318216509527

8572588318216509527

225 ms

14763004658117789537

14763004658117789537

180 ms

css

css

204 ms

css

css

152 ms

3957252553952054598

3957252553952054598

115 ms

one_click_handler_one_afma.js

one_click_handler_one_afma.js

108 ms

activeview

activeview

218 ms

WGg91BhL6Bhk3qTAPqmblqNZdzujbVjDoJfr3h8Q3EY.js

WGg91BhL6Bhk3qTAPqmblqNZdzujbVjDoJfr3h8Q3EY.js

38 ms

rum.js

rum.js

281 ms

KFOlCnqEu92Fr1MmWUlfBBc-.woff

KFOlCnqEu92Fr1MmWUlfBBc-.woff

296 ms

KFOmCnqEu92Fr1Mu4mxM.woff

KFOmCnqEu92Fr1Mu4mxM.woff

297 ms

KFOlCnqEu92Fr1MmSU5fBBc-.woff

KFOlCnqEu92Fr1MmSU5fBBc-.woff

302 ms

activeview

activeview

265 ms

4Ua_rENHsxJlGDuGo1OIlJfC6l_24rlCK1Yo_Iqcsih3SAyH6cAwhX9RFD48TE63OOYKtrw2IJllpy8.woff

4Ua_rENHsxJlGDuGo1OIlJfC6l_24rlCK1Yo_Iqcsih3SAyH6cAwhX9RFD48TE63OOYKtrw2IJllpy8.woff

267 ms

4Ua_rENHsxJlGDuGo1OIlJfC6l_24rlCK1Yo_Iqcsih3SAyH6cAwhX9RFD48TE63OOYKtrwEIJllpy8.woff

4Ua_rENHsxJlGDuGo1OIlJfC6l_24rlCK1Yo_Iqcsih3SAyH6cAwhX9RFD48TE63OOYKtrwEIJllpy8.woff

267 ms

Accessibility Review

instaluj.cz accessibility score

85

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.

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

<frame> or <iframe> elements do not have a title

High

Form elements do not have associated labels

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

instaluj.cz best practices score

67

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

instaluj.cz SEO score

91

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

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

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

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 Instaluj.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 Instaluj.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

instaluj.cz

Open Graph data is detected on the main page of INSTALUJ. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: