Tools & Wizards About Us
letitroll.cz screenshot

Report Summary

  • 24

    Performance

    Renders faster than
    43% of other websites

  • 71

    Accessibility

    Visual factors better than
    that of 36% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 86

    SEO

    Google-friendlier than
    60% of websites

letitroll.cz

Let It Roll Festival | Největší Drum & Bass festival na světě

Page Load Speed

2.5 sec in total

First Response

214 ms

Resources Loaded

2.1 sec

Page Rendered

209 ms

letitroll.cz screenshot

About Website

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

Zažijte ultimátní drum & bassový zážitek na Let It Rollu, největším festivalu svého druhu! Připojte se k 25 000+ Immortalz na našich epických akcích na open air festivalu nebo na jiných akcích a zažij...

Visit letitroll.cz

Key Findings

We analyzed Letitroll.cz page load time and found that the first response time was 214 ms and then it took 2.3 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

letitroll.cz performance score

24

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.1 s

46/100

10%

LCP (Largest Contentful Paint)

Value18.5 s

0/100

25%

SI (Speed Index)

Value10.4 s

8/100

10%

TBT (Total Blocking Time)

Value1,890 ms

9/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value17.9 s

4/100

10%

Network Requests Diagram

letitroll.cz

214 ms

letitroll.cz

49 ms

www.letitroll.cz

777 ms

gtm.js

106 ms

site_style

26 ms

Our browser made a total of 38 requests to load all elements on the main page. We found that 8% of them (3 requests) were addressed to the original Letitroll.cz, 21% (8 requests) were made to D17t27i218htgr.cloudfront.net and 18% (7 requests) were made to Cdnjs.cloudflare.com. The less responsive or slowest element that took the longest time to load (801 ms) relates to the external source C.seznam.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 244.9 kB (35%)

Content Size

709.3 kB

After Optimization

464.4 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Letitroll.cz main page is 709.3 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 358.8 kB which makes up the majority of the site volume.

HTML Optimization

-86%

Potential reduce by 147.9 kB

  • Original 172.0 kB
  • After minification 159.5 kB
  • After compression 24.0 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. 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 147.9 kB or 86% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 178.1 kB
  • After minification 178.1 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. Let It Roll images are well optimized though.

JavaScript Optimization

-27%

Potential reduce by 96.9 kB

  • Original 358.8 kB
  • After minification 354.3 kB
  • After compression 261.9 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 96.9 kB or 27% of the original size.

CSS Optimization

-17%

Potential reduce by 83 B

  • Original 503 B
  • After minification 440 B
  • After compression 420 B

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. Letitroll.cz needs all CSS files to be minified and compressed as it can save up to 83 B or 17% of the original size.

Requests Breakdown

Number of requests can be reduced by 21 (78%)

Requests Now

27

After Optimization

6

  • Images
  • JavaScript
  • CSS

The browser has sent 27 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Let It Roll. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 15 to 1 for JavaScripts and from 8 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

letitroll.cz

letitroll.cz

214 ms

letitroll.cz

letitroll.cz

49 ms

www.letitroll.cz

www.letitroll.cz

777 ms

gtm.js

gtm.js

106 ms

site_style

site_style

26 ms

font-awesome.min.css

font-awesome.min.css

24 ms

LIR_logo_summer__WHITE768x101.webp

LIR_logo_summer__WHITE768x101.webp

35 ms

user-circle-svgrepo-com.svg

user-circle-svgrepo-com.svg

43 ms

video_background.jpg

video_background.jpg

40 ms

3cdc34df-242b-4ca0-ae4e-a6da73bcea95.js

3cdc34df-242b-4ca0-ae4e-a6da73bcea95.js

219 ms

fonts.css

fonts.css

220 ms

webforms.min.js

webforms.min.js

217 ms

swiper-bundle.min.css

swiper-bundle.min.css

78 ms

swiper-bundle.min.js

swiper-bundle.min.js

95 ms

all.min.css

all.min.css

104 ms

all.min.js

all.min.js

212 ms

mc-validate.js

mc-validate.js

214 ms

jquery-pre-5e9d359d1f417f8169bc84780810243b5c539d20405d200093408a1c730c692d.js

jquery-pre-5e9d359d1f417f8169bc84780810243b5c539d20405d200093408a1c730c692d.js

78 ms

sites.bundle-e7f2565208617fd7751bc3969d0927905cf6f98bc39997570a85fdab6ff064ff.js

sites.bundle-e7f2565208617fd7751bc3969d0927905cf6f98bc39997570a85fdab6ff064ff.js

67 ms

scripts.js

scripts.js

94 ms

LIR_logo_summer_CMYK_reversecolors.png

LIR_logo_summer_CMYK_reversecolors.png

94 ms

script.js

script.js

266 ms

js

js

75 ms

fbevents.js

fbevents.js

148 ms

rc.js

rc.js

801 ms

events.js

events.js

150 ms

css

css

185 ms

main.MWNkMWZjOGNjMQ.js

main.MWNkMWZjOGNjMQ.js

53 ms

curator.embed.css

curator.embed.css

43 ms

log

log

447 ms

3cdc34df-242b-4ca0-ae4e-a6da73bcea95.css

3cdc34df-242b-4ca0-ae4e-a6da73bcea95.css

31 ms

coa16oxxyhivuq4v9a8hgdn92dyc

coa16oxxyhivuq4v9a8hgdn92dyc

519 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsjZ0B4uaVc.ttf

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsjZ0B4uaVc.ttf

133 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsg-1x4uaVc.ttf

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsg-1x4uaVc.ttf

156 ms

7ar5rj67ydy9es2i729g5u7hyjzz

7ar5rj67ydy9es2i729g5u7hyjzz

371 ms

fa-regular-400.ttf

fa-regular-400.ttf

35 ms

fa-solid-900.ttf

fa-solid-900.ttf

40 ms

p957j3i23q43psc0oy8hhnk0vxmm

p957j3i23q43psc0oy8hhnk0vxmm

464 ms

Accessibility Review

letitroll.cz accessibility score

71

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

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>).

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

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

letitroll.cz best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

letitroll.cz SEO score

86

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

Language and Encoding

  • Language Detected

    CS

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Letitroll.cz can be misinterpreted by Google and other search engines. Our service has detected that Czech is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Letitroll.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

letitroll.cz

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