Tools & Wizards About Us
schrack.cz screenshot

Report Summary

  • 12

    Performance

    Renders faster than
    25% of other websites

  • 65

    Accessibility

    Visual factors better than
    that of 30% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 74

    SEO

    Google-friendlier than
    31% of websites

schrack.cz

Schrack Technik | Výrobce elektroinstalačních materiálů

Page Load Speed

6.3 sec in total

First Response

1.4 sec

Resources Loaded

4.2 sec

Page Rendered

654 ms

schrack.cz screenshot

About Website

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

Nejvhodnější elektromateriály již více jak 25 let v ČR. S námi nakupujete kvalitu, kterou nám i Vy pomáháte stále zlepšovat svou praxí.

Visit schrack.cz

Key Findings

We analyzed Schrack.cz page load time and found that the first response time was 1.4 sec 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.

Performance Metrics

schrack.cz performance score

12

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value6.5 s

2/100

10%

LCP (Largest Contentful Paint)

Value7.4 s

4/100

25%

SI (Speed Index)

Value10.1 s

9/100

10%

TBT (Total Blocking Time)

Value1,690 ms

11/100

30%

CLS (Cumulative Layout Shift)

Value0.292

41/100

15%

TTI (Time to Interactive)

Value14.8 s

8/100

10%

Network Requests Diagram

www.schrack.cz

1437 ms

merged-bcf321f46b2f690bd87d5ab339f3af89-c80889a3e1749bab4b22f773402aee71.css

483 ms

cmsHeader.js,q1457971130.pagespeed.ce.2X9hx26Bcw.js

528 ms

A.cookiecuttr.css.pagespeed.cf.BkJOl2C-I8.css

251 ms

cmsFooter.js,q1457971130.pagespeed.ce.xDN-p4IsLp.js

613 ms

Our browser made a total of 56 requests to load all elements on the main page. We found that 84% of them (47 requests) were addressed to the original Schrack.cz, 7% (4 requests) were made to Google-analytics.com and 4% (2 requests) were made to Browser-update.org. The less responsive or slowest element that took the longest time to load (1.4 sec) belongs to the original domain Schrack.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 954.5 kB (29%)

Content Size

3.3 MB

After Optimization

2.4 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Schrack.cz main page is 3.3 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. 45% of websites need less resources to load. Images take 2.1 MB which makes up the majority of the site volume.

HTML Optimization

-71%

Potential reduce by 144.1 kB

  • Original 202.1 kB
  • After minification 178.9 kB
  • After compression 58.0 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 23.2 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 144.1 kB or 71% of the original size.

Image Optimization

-1%

Potential reduce by 15.3 kB

  • Original 2.1 MB
  • After minification 2.1 MB

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. Schrack images are well optimized though.

JavaScript Optimization

-69%

Potential reduce by 420.8 kB

  • Original 612.7 kB
  • After minification 612.7 kB
  • After compression 191.9 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 420.8 kB or 69% of the original size.

CSS Optimization

-87%

Potential reduce by 374.3 kB

  • Original 432.7 kB
  • After minification 427.2 kB
  • After compression 58.4 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. Schrack.cz needs all CSS files to be minified and compressed as it can save up to 374.3 kB or 87% of the original size.

Requests Breakdown

Number of requests can be reduced by 24 (45%)

Requests Now

53

After Optimization

29

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 53 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Schrack. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 6 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

www.schrack.cz

www.schrack.cz

1437 ms

merged-bcf321f46b2f690bd87d5ab339f3af89-c80889a3e1749bab4b22f773402aee71.css

merged-bcf321f46b2f690bd87d5ab339f3af89-c80889a3e1749bab4b22f773402aee71.css

483 ms

cmsHeader.js,q1457971130.pagespeed.ce.2X9hx26Bcw.js

cmsHeader.js,q1457971130.pagespeed.ce.2X9hx26Bcw.js

528 ms

A.cookiecuttr.css.pagespeed.cf.BkJOl2C-I8.css

A.cookiecuttr.css.pagespeed.cf.BkJOl2C-I8.css

251 ms

cmsFooter.js,q1457971130.pagespeed.ce.xDN-p4IsLp.js

cmsFooter.js,q1457971130.pagespeed.ce.xDN-p4IsLp.js

613 ms

analytics.js

analytics.js

16 ms

j.lasovsky@schrack.cz.jpg

j.lasovsky@schrack.cz.jpg

606 ms

146x37xschrack-logo.png.pagespeed.ic.Q1OMvmp4Ug.png

146x37xschrack-logo.png.pagespeed.ic.Q1OMvmp4Ug.png

141 ms

1180x378x1180x390_banner_LetemSvetem_Schrack25let.jpg.pagespeed.ic.f6tFK5ZRT9.jpg

1180x378x1180x390_banner_LetemSvetem_Schrack25let.jpg.pagespeed.ic.f6tFK5ZRT9.jpg

1042 ms

1180x390xSHRACK_big_white_2016_1180x390.png.pagespeed.ic.1WygCMqN9n.png

1180x390xSHRACK_big_white_2016_1180x390.png.pagespeed.ic.1WygCMqN9n.png

714 ms

1180x393x1180x393xMain_Teaser_Kredit.jpg.pagespeed.ic.Q0PfmwhM3V.jpg

1180x393x1180x393xMain_Teaser_Kredit.jpg.pagespeed.ic.Q0PfmwhM3V.jpg

719 ms

1180x390x1180x390_banner_SchrackDesign_02_2016.png.pagespeed.ic.a4D23k_tuH.png

1180x390x1180x390_banner_SchrackDesign_02_2016.png.pagespeed.ic.a4D23k_tuH.png

1011 ms

1180x390x1180x390_SchrackDesign_VIP_Telephone03012016.jpg.pagespeed.ic.Z10xUxf43K.jpg

1180x390x1180x390_SchrackDesign_VIP_Telephone03012016.jpg.pagespeed.ic.Z10xUxf43K.jpg

644 ms

880x120x880x120px_nabidky_eshop.jpg.pagespeed.ic.G1qjNF893T.jpg

880x120x880x120px_nabidky_eshop.jpg.pagespeed.ic.G1qjNF893T.jpg

430 ms

879x120x880x120_banner_SchrackDesign_280415.png.pagespeed.ic.5evHrc_fPj.png

879x120x880x120_banner_SchrackDesign_280415.png.pagespeed.ic.5evHrc_fPj.png

695 ms

880x120x880x120_bannery_BlueLine_191015_1_TXT.png.pagespeed.ic.JRR5xktEIm.png

880x120x880x120_bannery_BlueLine_191015_1_TXT.png.pagespeed.ic.JRR5xktEIm.png

895 ms

search-submit.png

search-submit.png

798 ms

slider-loading.gif

slider-loading.gif

801 ms

icons-service-menu.png

icons-service-menu.png

758 ms

list-icon.png

list-icon.png

872 ms

arrow-small-button.png

arrow-small-button.png

860 ms

icon-footer-list.png

icon-footer-list.png

876 ms

schrack-logo-small.png

schrack-logo-small.png

947 ms

1105 ms

1100 ms

index.php

index.php

829 ms

ec.js

ec.js

14 ms

linkid.js

linkid.js

16 ms

ui-bg_flat_75_ffffff_40x100.png

ui-bg_flat_75_ffffff_40x100.png

1015 ms

slider-nav-prev.png

slider-nav-prev.png

1015 ms

slider-nav-next.png

slider-nav-next.png

1015 ms

csm_schrack_academy_cz_26920cafc5.jpg

csm_schrack_academy_cz_26920cafc5.jpg

1026 ms

csm_SHRACK_big_white_2016_280x165_2f8327cf34.png

csm_SHRACK_big_white_2016_280x165_2f8327cf34.png

1026 ms

csm_280x165px_projektanti_8575d7305a.jpg

csm_280x165px_projektanti_8575d7305a.jpg

1027 ms

collect

collect

4 ms

collect

collect

67 ms

ga-audiences

ga-audiences

35 ms

list-icon-white.png

list-icon-white.png

239 ms

button-arrow-large-arrow.png

button-arrow-large-arrow.png

240 ms

csm_280x165px_Platbni_cc3871a955.jpg

csm_280x165px_Platbni_cc3871a955.jpg

240 ms

csm_880x260_banner_SchrackDesign_022016_067f64ab44.jpg

csm_880x260_banner_SchrackDesign_022016_067f64ab44.jpg

252 ms

csm_280x165px_DATA_2_eb3a694f5a.jpg

csm_280x165px_DATA_2_eb3a694f5a.jpg

290 ms

mainMenu134.png

mainMenu134.png

259 ms

category-menu-arrow.png

category-menu-arrow.png

127 ms

button-arrow-large-arrow.png

button-arrow-large-arrow.png

112 ms

icon-warenkorb.png

icon-warenkorb.png

127 ms

icon-schnellerfassung.png

icon-schnellerfassung.png

125 ms

icon-myaccount.png

icon-myaccount.png

171 ms

cart.png

cart.png

207 ms

fahne.png

fahne.png

227 ms

account.png

account.png

243 ms

quickadd.png

quickadd.png

250 ms

partslist.png

partslist.png

295 ms

update.js

update.js

13 ms

FuturaPTDemi-Reg.woff

FuturaPTDemi-Reg.woff

254 ms

f.png

f.png

33 ms

Accessibility Review

schrack.cz accessibility score

65

Accessibility Issues

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

High

[aria-*] attributes do not match their roles

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

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

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

schrack.cz best practices score

58

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

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

schrack.cz SEO score

74

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

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

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 Schrack.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 Schrack.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

schrack.cz

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