Tools & Wizards About Us
lexis.cz screenshot

Report Summary

  • 29

    Performance

    Renders faster than
    49% of other websites

  • 91

    Accessibility

    Visual factors better than
    that of 77% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 97

    SEO

    Google-friendlier than
    91% of websites

lexis.cz

Home - Lexis | jazykové kurzy

Page Load Speed

7.4 sec in total

First Response

338 ms

Resources Loaded

6.8 sec

Page Rendered

315 ms

lexis.cz screenshot

About Website

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

Jazyková škola Lexis v srdci Prahy je spolehlivým místem pro individuální výuku a miniskupinové kurzy. Tel. +420602528184, www.lexis.cz

Visit lexis.cz

Key Findings

We analyzed Lexis.cz page load time and found that the first response time was 338 ms and then it took 7.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.

Performance Metrics

lexis.cz performance score

29

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.4 s

16/100

10%

LCP (Largest Contentful Paint)

Value6.6 s

8/100

25%

SI (Speed Index)

Value11.3 s

5/100

10%

TBT (Total Blocking Time)

Value910 ms

31/100

30%

CLS (Cumulative Layout Shift)

Value0.004

100/100

15%

TTI (Time to Interactive)

Value14.9 s

8/100

10%

Network Requests Diagram

lexis.cz

338 ms

www.lexis.cz

3598 ms

system.base.css

210 ms

system.messages.css

226 ms

system.theme.css

223 ms

Our browser made a total of 90 requests to load all elements on the main page. We found that 87% of them (78 requests) were addressed to the original Lexis.cz, 7% (6 requests) were made to Fonts.gstatic.com and 2% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (3.6 sec) belongs to the original domain Lexis.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 442.1 kB (48%)

Content Size

929.2 kB

After Optimization

487.1 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Lexis.cz main page is 929.2 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. Images take 540.7 kB which makes up the majority of the site volume.

HTML Optimization

-75%

Potential reduce by 26.0 kB

  • Original 34.7 kB
  • After minification 33.5 kB
  • After compression 8.7 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. 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 26.0 kB or 75% of the original size.

Image Optimization

-29%

Potential reduce by 156.1 kB

  • Original 540.7 kB
  • After minification 384.6 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, Lexis needs image optimization as it can save up to 156.1 kB or 29% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-70%

Potential reduce by 183.9 kB

  • Original 262.5 kB
  • After minification 204.9 kB
  • After compression 78.7 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 183.9 kB or 70% of the original size.

CSS Optimization

-83%

Potential reduce by 76.2 kB

  • Original 91.3 kB
  • After minification 47.6 kB
  • After compression 15.1 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. Lexis.cz needs all CSS files to be minified and compressed as it can save up to 76.2 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 61 (75%)

Requests Now

81

After Optimization

20

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 81 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Lexis. 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 32 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

lexis.cz

lexis.cz

338 ms

www.lexis.cz

www.lexis.cz

3598 ms

system.base.css

system.base.css

210 ms

system.messages.css

system.messages.css

226 ms

system.theme.css

system.theme.css

223 ms

comment.css

comment.css

232 ms

date.css

date.css

260 ms

datepicker.1.7.css

datepicker.1.7.css

262 ms

field.css

field.css

329 ms

node.css

node.css

341 ms

search.css

search.css

339 ms

user.css

user.css

352 ms

views.css

views.css

375 ms

colorbox_default_style.css

colorbox_default_style.css

392 ms

ctools.css

ctools.css

452 ms

panels.css

panels.css

463 ms

views_slideshow.css

views_slideshow.css

471 ms

flexible.css

flexible.css

467 ms

field_slideshow.css

field_slideshow.css

498 ms

88a25f2820cb5d75f4ed94b1facf88bd.css

88a25f2820cb5d75f4ed94b1facf88bd.css

536 ms

normalize.css

normalize.css

662 ms

wireframes.css

wireframes.css

570 ms

responsive-sidebars.css

responsive-sidebars.css

588 ms

tabs.css

tabs.css

603 ms

pages.css

pages.css

604 ms

blocks.css

blocks.css

656 ms

navigation.css

navigation.css

675 ms

views-styles.css

views-styles.css

695 ms

nodes.css

nodes.css

742 ms

comments.css

comments.css

727 ms

forms.css

forms.css

783 ms

fields.css

fields.css

785 ms

print.css

print.css

795 ms

css

css

25 ms

jquery.min.js

jquery.min.js

1142 ms

jquery.once.js

jquery.once.js

841 ms

drupal.js

drupal.js

962 ms

jquery.cookie.js

jquery.cookie.js

889 ms

jquery.form.min.js

jquery.form.min.js

771 ms

ajax.js

ajax.js

806 ms

jquery_update.js

jquery_update.js

750 ms

cs_6Qkgjams9Yt_WedJExQWSZ5L0aWCjOcNYo8C22DUXTM.js

cs_6Qkgjams9Yt_WedJExQWSZ5L0aWCjOcNYo8C22DUXTM.js

793 ms

jquery.colorbox-min.js

jquery.colorbox-min.js

793 ms

colorbox.js

colorbox.js

838 ms

colorbox_default_style.js

colorbox_default_style.js

835 ms

panels.js

panels.js

806 ms

views_slideshow.js

views_slideshow.js

786 ms

jquery.cycle.all.js

jquery.cycle.all.js

1002 ms

field_slideshow.js

field_slideshow.js

890 ms

newsletter.js

newsletter.js

845 ms

progress.js

progress.js

859 ms

ga.js

ga.js

7 ms

background.png

background.png

135 ms

like.php

like.php

171 ms

__utm.gif

__utm.gif

23 ms

header_back.png

header_back.png

252 ms

logo_0.png

logo_0.png

161 ms

phone.png

phone.png

143 ms

menu_back.png

menu_back.png

138 ms

input.jpg

input.jpg

147 ms

blue_arrow.jpg

blue_arrow.jpg

148 ms

menuitem_back.png

menuitem_back.png

262 ms

menu_border.gif

menu_border.gif

660 ms

bread_back.png

bread_back.png

700 ms

lexis-www2-bannerINDIV.jpg

lexis-www2-bannerINDIV.jpg

801 ms

lexis-bannery-jaro_0.png

lexis-bannery-jaro_0.png

1458 ms

rozc_box.png

rozc_box.png

711 ms

rozc_arrow.gif

rozc_arrow.gif

730 ms

rozc1.jpg

rozc1.jpg

883 ms

rozc2.jpg

rozc2.jpg

961 ms

rozc3.jpg

rozc3.jpg

930 ms

rozc4.jpg

rozc4.jpg

849 ms

odrazka.png

odrazka.png

978 ms

ot_box.png

ot_box.png

1208 ms

ot_button.png

ot_button.png

999 ms

ao_box.png

ao_box.png

1473 ms

ao_button.png

ao_button.png

1169 ms

footer_back.png

footer_back.png

1145 ms

logo_small.png

logo_small.png

1163 ms

b_dvojka_small.png

b_dvojka_small.png

1265 ms

print.jpg

print.jpg

1272 ms

PRmiXeptR36kaC0GEAetxp_TkvowlIOtbR7ePgFOpF4.ttf

PRmiXeptR36kaC0GEAetxp_TkvowlIOtbR7ePgFOpF4.ttf

14 ms

PRmiXeptR36kaC0GEAetxi8cqLH4MEiSE0ROcU-qHOA.ttf

PRmiXeptR36kaC0GEAetxi8cqLH4MEiSE0ROcU-qHOA.ttf

27 ms

xjAJXh38I15wypJXxuGMBp0EAVxt0G0biEntp43Qt6E.ttf

xjAJXh38I15wypJXxuGMBp0EAVxt0G0biEntp43Qt6E.ttf

28 ms

k3k702ZOKiLJc3WVjuplzInF5uFdDttMLvmWuJdhhgs.ttf

k3k702ZOKiLJc3WVjuplzInF5uFdDttMLvmWuJdhhgs.ttf

27 ms

MTP_ySUJH_bn48VBG8sNSonF5uFdDttMLvmWuJdhhgs.ttf

MTP_ySUJH_bn48VBG8sNSonF5uFdDttMLvmWuJdhhgs.ttf

28 ms

cJZKeOuBrn4kERxqtaUH3aCWcynf_cDxXwCLxiixG1c.ttf

cJZKeOuBrn4kERxqtaUH3aCWcynf_cDxXwCLxiixG1c.ttf

28 ms

Depot-Light.otf

Depot-Light.otf

1391 ms

h5Lp5Et_eC4.js

h5Lp5Et_eC4.js

302 ms

LVx-xkvaJ0b.png

LVx-xkvaJ0b.png

339 ms

Accessibility Review

lexis.cz accessibility score

91

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-hidden="true"] elements contain focusable descendents

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

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

Links do not have a discernible name

Best Practices

lexis.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

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

lexis.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 Lexis.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 Lexis.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

lexis.cz

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