Tools & Wizards About Us
butlers.cz screenshot

Report Summary

  • 13

    Performance

    Renders faster than
    25% of other websites

  • 81

    Accessibility

    Visual factors better than
    that of 51% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

butlers.cz

designový nábytek a stylové bytové doplňky pro Váš domov | Butlers.cz

Page Load Speed

21.7 sec in total

First Response

256 ms

Resources Loaded

21.1 sec

Page Rendered

434 ms

butlers.cz screenshot

About Website

Welcome to butlers.cz homepage info - get ready to check Butlers best content for Czech Republic right away, or after learning these important things about butlers.cz

Koncept Butlers se obrací k lidem, kteří si s radostí a fantazií vylepšují svůj domov. Nadčasový nábytek, stylové dekorace nebo originální nápady na dárky.

Visit butlers.cz

Key Findings

We analyzed Butlers.cz page load time and found that the first response time was 256 ms and then it took 21.5 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 was 1 request timeout, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

butlers.cz performance score

13

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.9 s

24/100

10%

LCP (Largest Contentful Paint)

Value12.3 s

0/100

25%

SI (Speed Index)

Value9.6 s

11/100

10%

TBT (Total Blocking Time)

Value1,020 ms

26/100

30%

CLS (Cumulative Layout Shift)

Value1.548

0/100

15%

TTI (Time to Interactive)

Value11.8 s

17/100

10%

Network Requests Diagram

butlers.cz

256 ms

butlers.cz

293 ms

www.butlers.cz

750 ms

logo.svg

46 ms

main

152 ms

Our browser made a total of 48 requests to load all elements on the main page. We found that 19% of them (9 requests) were addressed to the original Butlers.cz, 67% (32 requests) were made to I00.eu and 4% (2 requests) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (19.8 sec) relates to the external source Static.zanox.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 326.9 kB (21%)

Content Size

1.6 MB

After Optimization

1.3 MB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Butlers.cz main page is 1.6 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. 65% of websites need less resources to load. Images take 1.2 MB which makes up the majority of the site volume.

HTML Optimization

-90%

Potential reduce by 326.7 kB

  • Original 364.9 kB
  • After minification 289.1 kB
  • After compression 38.3 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 75.8 kB, which is 21% 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 326.7 kB or 90% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 1.2 MB
  • After minification 1.2 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. Butlers images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 208 B

  • Original 48.6 kB
  • After minification 48.6 kB
  • After compression 48.4 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.

Requests Breakdown

Number of requests can be reduced by 9 (24%)

Requests Now

38

After Optimization

29

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 38 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Butlers. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 10 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

butlers.cz

butlers.cz

256 ms

butlers.cz

butlers.cz

293 ms

www.butlers.cz

www.butlers.cz

750 ms

logo.svg

logo.svg

46 ms

main

main

152 ms

submain

submain

802 ms

symbol-defs.svg

symbol-defs.svg

255 ms

sk.svg

sk.svg

784 ms

img-loading.svg

img-loading.svg

267 ms

1825757.jpg

1825757.jpg

224 ms

1825670.jpg

1825670.jpg

138 ms

1825724.jpg

1825724.jpg

125 ms

1825718.jpg

1825718.jpg

123 ms

1825721.jpg

1825721.jpg

122 ms

1825713.jpg

1825713.jpg

124 ms

1825749.jpg

1825749.jpg

270 ms

1825659.jpg

1825659.jpg

265 ms

green-heart.png

green-heart.png

136 ms

400.woff

400.woff

270 ms

300.woff

300.woff

221 ms

700.woff

700.woff

222 ms

zanox.js

zanox.js

19767 ms

butlers-cz

butlers-cz

26 ms

heureka.svg

heureka.svg

231 ms

cards.jpg

cards.jpg

187 ms

package_cz.min.js

package_cz.min.js

186 ms

runtime.d7e4ff3b.js

runtime.d7e4ff3b.js

185 ms

553.33b59e44.js

553.33b59e44.js

187 ms

frontend.b389004a.js

frontend.b389004a.js

187 ms

js

js

56 ms

js

js

82 ms

platform.js

platform.js

30 ms

piwik.js

piwik.js

985 ms

_pt.min.js

_pt.min.js

196 ms

rum-1.2.3.js

rum-1.2.3.js

195 ms

package.min.css

package.min.css

194 ms

close-btn.png

close-btn.png

526 ms

arrow-left.png

arrow-left.png

31 ms

ajax-loader.gif

ajax-loader.gif

30 ms

arrow-right.png

arrow-right.png

30 ms

1795627.jpg

1795627.jpg

163 ms

400.woff

400.woff

137 ms

700.woff

700.woff

54 ms

1825566.jpg

1825566.jpg

137 ms

piwik.php

piwik.php

155 ms

1825551.jpg

1825551.jpg

112 ms

1795690.jpg

1795690.jpg

245 ms

1825660.jpg

1825660.jpg

750 ms

Accessibility Review

butlers.cz accessibility score

81

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

Image elements do not have [alt] attributes

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.

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

Best Practices

butlers.cz best practices score

75

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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

butlers.cz SEO score

83

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 Butlers.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 Butlers.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

butlers.cz

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