Tools & Wizards About Us
alunet.cz screenshot

Report Summary

  • 45

    Performance

    Renders faster than
    64% of other websites

  • 76

    Accessibility

    Visual factors better than
    that of 42% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 97

    SEO

    Google-friendlier than
    91% of websites

alunet.cz

Hliníkové profily, hliníkové chladiče, hliníkové plechy - ALUCAD Bohemia, s. r. o.

Page Load Speed

2.6 sec in total

First Response

398 ms

Resources Loaded

1.9 sec

Page Rendered

315 ms

alunet.cz screenshot

About Website

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

Hliníkové profily, hliníkové chladiče, hliníkové plechy, hliníkový výstavnický systém, hliníkový systém zastřešení, výkresové hliníkové profily. Vše na míru jen na www.alunet.cz

Visit alunet.cz

Key Findings

We analyzed Alunet.cz page load time and found that the first response time was 398 ms and then it took 2.2 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 45% of websites can load faster.

Performance Metrics

alunet.cz performance score

45

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.2 s

42/100

10%

LCP (Largest Contentful Paint)

Value4.8 s

31/100

25%

SI (Speed Index)

Value4.8 s

66/100

10%

TBT (Total Blocking Time)

Value830 ms

35/100

30%

CLS (Cumulative Layout Shift)

Value0.093

91/100

15%

TTI (Time to Interactive)

Value10.4 s

24/100

10%

Network Requests Diagram

alunet.cz

398 ms

www.alunet.cz

413 ms

jquery-2.1.1.min.js

219 ms

bootstrap.min.css

319 ms

bootstrap.min.js

203 ms

Our browser made a total of 57 requests to load all elements on the main page. We found that 46% of them (26 requests) were addressed to the original Alunet.cz, 21% (12 requests) were made to Static.xx.fbcdn.net and 7% (4 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (694 ms) relates to the external source C.seznam.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 79.9 kB (23%)

Content Size

344.7 kB

After Optimization

264.8 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Alunet.cz main page is 344.7 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. 60% of websites need less resources to load. Javascripts take 168.7 kB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 35.9 kB

  • Original 45.6 kB
  • After minification 40.6 kB
  • After compression 9.7 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. This page needs HTML code to be minified as it can gain 5.1 kB, which is 11% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 35.9 kB or 79% of the original size.

Image Optimization

-11%

Potential reduce by 10.8 kB

  • Original 100.1 kB
  • After minification 89.4 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. Obviously, Alunet needs image optimization as it can save up to 10.8 kB or 11% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-19%

Potential reduce by 32.5 kB

  • Original 168.7 kB
  • After minification 168.7 kB
  • After compression 136.1 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 32.5 kB or 19% of the original size.

CSS Optimization

-2%

Potential reduce by 705 B

  • Original 30.3 kB
  • After minification 30.3 kB
  • After compression 29.6 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. Alunet.cz has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 22 (46%)

Requests Now

48

After Optimization

26

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 48 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Alunet. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 19 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

alunet.cz

alunet.cz

398 ms

www.alunet.cz

www.alunet.cz

413 ms

jquery-2.1.1.min.js

jquery-2.1.1.min.js

219 ms

bootstrap.min.css

bootstrap.min.css

319 ms

bootstrap.min.js

bootstrap.min.js

203 ms

font-awesome.min.css

font-awesome.min.css

204 ms

css

css

21 ms

stylesheet.css

stylesheet.css

212 ms

common.js

common.js

208 ms

rc.js

rc.js

694 ms

analytics.js

analytics.js

51 ms

hotjar-188881.js

hotjar-188881.js

20 ms

alucad-logo.png

alucad-logo.png

120 ms

logo-alunet.png

logo-alunet.png

131 ms

fotovoltaika_big.png

fotovoltaika_big.png

131 ms

plot%20dil-Model.png

plot%20dil-Model.png

137 ms

zastreseni_big.png

zastreseni_big.png

130 ms

zabradli-new.png

zabradli-new.png

130 ms

predokenni-zabradli.png

predokenni-zabradli.png

130 ms

hlinikove_zabradli_big.png

hlinikove_zabradli_big.png

275 ms

hlinikove_profily_big.png

hlinikove_profily_big.png

275 ms

chladice_big.png

chladice_big.png

275 ms

vystavnictvi_big.png

vystavnictvi_big.png

274 ms

lamely_big.png

lamely_big.png

273 ms

profily_kotveni_bond_big.png

profily_kotveni_bond_big.png

274 ms

vykresove_big.png

vykresove_big.png

413 ms

plechy_big.png

plechy_big.png

413 ms

hotjar-188881.js

hotjar-188881.js

134 ms

sdk.js

sdk.js

49 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsjZ0B4gaVc.ttf

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsjZ0B4gaVc.ttf

26 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsiH0B4gaVc.ttf

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsiH0B4gaVc.ttf

34 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsg-1x4gaVc.ttf

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsg-1x4gaVc.ttf

67 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

475 ms

memQYaGs126MiZpBA-UFUIcVXSCEkx2cmqvXlWq8tWZ0Pw86hd0Rk8ZkWVAexQ.ttf

memQYaGs126MiZpBA-UFUIcVXSCEkx2cmqvXlWq8tWZ0Pw86hd0Rk8ZkWVAexQ.ttf

68 ms

collect

collect

16 ms

sdk.js

sdk.js

12 ms

collect

collect

75 ms

js

js

90 ms

54 ms

alucad-logo.png

alucad-logo.png

296 ms

ga-audiences

ga-audiences

185 ms

alucad-panel-bg.png

alucad-panel-bg.png

212 ms

page.php

page.php

77 ms

1l56xVUMItd.css

1l56xVUMItd.css

23 ms

7iK8-lsXHFs.js

7iK8-lsXHFs.js

31 ms

o1ndYS2og_B.js

o1ndYS2og_B.js

26 ms

vxmlpLbAeCj.js

vxmlpLbAeCj.js

61 ms

Q-X-GXL_I_5.js

Q-X-GXL_I_5.js

29 ms

_02W6YRik00.js

_02W6YRik00.js

29 ms

p55HfXW__mM.js

p55HfXW__mM.js

25 ms

k_PjgALRjoR.js

k_PjgALRjoR.js

67 ms

qJoe20iyDr0.js

qJoe20iyDr0.js

67 ms

308503875_394013536232037_8455318695852834033_n.jpg

308503875_394013536232037_8455318695852834033_n.jpg

120 ms

KcZbtzHgPWa.js

KcZbtzHgPWa.js

10 ms

EcPi7SsydEO.js

EcPi7SsydEO.js

7 ms

306484252_394013532898704_7987478785469237482_n.png

306484252_394013532898704_7987478785469237482_n.png

89 ms

UXtr_j2Fwe-.png

UXtr_j2Fwe-.png

6 ms

Accessibility Review

alunet.cz accessibility score

76

Accessibility Issues

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

Buttons do not have an accessible name

High

Links do not have a discernible name

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

alunet.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

alunet.cz SEO score

97

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

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 Alunet.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 Alunet.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

alunet.cz

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