Tools & Wizards About Us
estrechy.cz screenshot

Report Summary

  • 62

    Performance

    Renders faster than
    77% of other websites

  • 88

    Accessibility

    Visual factors better than
    that of 69% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 71

    SEO

    Google-friendlier than
    30% of websites

estrechy.cz

Domain for sale

Page Load Speed

2.1 sec in total

First Response

294 ms

Resources Loaded

1.6 sec

Page Rendered

159 ms

estrechy.cz screenshot

About Website

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

Firmy, poradna, poptávky, inzerce, blogy, články, recenze, ceníky a akční zboží on-line se specializací na střechy.

Visit estrechy.cz

Key Findings

We analyzed Estrechy.cz page load time and found that the first response time was 294 ms and then it took 1.8 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 35% of websites can load faster.

Performance Metrics

estrechy.cz performance score

62

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.7 s

61/100

10%

LCP (Largest Contentful Paint)

Value4.2 s

45/100

25%

SI (Speed Index)

Value5.6 s

53/100

10%

TBT (Total Blocking Time)

Value580 ms

51/100

30%

CLS (Cumulative Layout Shift)

Value0.03

100/100

15%

TTI (Time to Interactive)

Value4.0 s

88/100

10%

Network Requests Diagram

estrechy.cz

294 ms

style.min.css

118 ms

jquery.js

409 ms

moaModal.min.js

234 ms

get_flash_player.gif

15 ms

Our browser made a total of 42 requests to load all elements on the main page. We found that 52% of them (22 requests) were addressed to the original Estrechy.cz, 19% (8 requests) were made to Apis.google.com and 5% (2 requests) were made to Estrechy.sk. The less responsive or slowest element that took the longest time to load (885 ms) belongs to the original domain Estrechy.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 100.0 kB (37%)

Content Size

271.1 kB

After Optimization

171.2 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Estrechy.cz main page is 271.1 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. 40% of websites need less resources to load. Javascripts take 127.4 kB which makes up the majority of the site volume.

HTML Optimization

-72%

Potential reduce by 18.7 kB

  • Original 26.1 kB
  • After minification 24.8 kB
  • After compression 7.4 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 18.7 kB or 72% of the original size.

Image Optimization

-0%

Potential reduce by 290 B

  • Original 104.6 kB
  • After minification 104.3 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. Estrechy images are well optimized though.

JavaScript Optimization

-56%

Potential reduce by 70.9 kB

  • Original 127.4 kB
  • After minification 127.3 kB
  • After compression 56.5 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 70.9 kB or 56% of the original size.

CSS Optimization

-77%

Potential reduce by 10.1 kB

  • Original 13.1 kB
  • After minification 13.1 kB
  • After compression 3.0 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. Estrechy.cz needs all CSS files to be minified and compressed as it can save up to 10.1 kB or 77% of the original size.

Requests Breakdown

Number of requests can be reduced by 16 (40%)

Requests Now

40

After Optimization

24

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 40 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Estrechy. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 12 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

estrechy.cz

estrechy.cz

294 ms

style.min.css

style.min.css

118 ms

jquery.js

jquery.js

409 ms

moaModal.min.js

moaModal.min.js

234 ms

get_flash_player.gif

get_flash_player.gif

15 ms

flag_cz.gif

flag_cz.gif

422 ms

banner_uvod_shop.jpg

banner_uvod_shop.jpg

347 ms

_227.jpg

_227.jpg

239 ms

_134.jpg

_134.jpg

123 ms

_120.jpg

_120.jpg

337 ms

_221.jpg

_221.jpg

234 ms

_215.jpg

_215.jpg

239 ms

_141.jpg

_141.jpg

240 ms

logo.gif

logo.gif

347 ms

banner_velux_akce.gif

banner_velux_akce.gif

355 ms

search_search.gif

search_search.gif

355 ms

akce.gif

akce.gif

355 ms

img17

img17

885 ms

flag_sk.gif

flag_sk.gif

420 ms

all.js

all.js

33 ms

plusone.js

plusone.js

94 ms

search_corner_top.gif

search_corner_top.gif

447 ms

button_search_bg.gif

button_search_bg.gif

448 ms

lista1_bg.gif

lista1_bg.gif

456 ms

lista1_left_bg.gif

lista1_left_bg.gif

455 ms

lista1_right_bg.gif

lista1_right_bg.gif

455 ms

ga.js

ga.js

50 ms

x.png

x.png

536 ms

127 ms

xd_arbiter.php

xd_arbiter.php

26 ms

xd_arbiter.php

xd_arbiter.php

35 ms

__utm.gif

__utm.gif

32 ms

cb=gapi.loaded_0

cb=gapi.loaded_0

19 ms

cb=gapi.loaded_1

cb=gapi.loaded_1

35 ms

fastbutton

fastbutton

89 ms

postmessageRelay

postmessageRelay

29 ms

3193398744-postmessagerelay.js

3193398744-postmessagerelay.js

53 ms

rpc:shindig_random.js

rpc:shindig_random.js

33 ms

W5F8_SL0XFawnjxHGsZjJA.ttf

W5F8_SL0XFawnjxHGsZjJA.ttf

78 ms

cb=gapi.loaded_0

cb=gapi.loaded_0

27 ms

cb=gapi.loaded_1

cb=gapi.loaded_1

24 ms

cb=gapi.loaded_0

cb=gapi.loaded_0

10 ms

Accessibility Review

estrechy.cz accessibility score

88

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Best Practices

estrechy.cz best practices score

83

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

SEO Factors

estrechy.cz SEO score

71

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

    WINDOWS-1250

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Estrechy.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 Estrechy.cz main page’s claimed encoding is windows-1250. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

estrechy.cz

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