Tools & Wizards About Us
jc-correct.com screenshot

Report Summary

  • 28

    Performance

    Renders faster than
    48% of other websites

  • 90

    Accessibility

    Visual factors better than
    that of 75% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 99

    SEO

    Google-friendlier than
    93% of websites

jc-correct.com

Jazyková škola Brno - Jazykové centrum Correct

Page Load Speed

9 sec in total

First Response

430 ms

Resources Loaded

8.3 sec

Page Rendered

241 ms

jc-correct.com screenshot

About Website

Click here to check amazing Jc Correct content for Czech Republic. Otherwise, check out these important facts you probably never knew about jc-correct.com

Jazykové centrum Correct, jazyková škola v centru Brna, nabízí výuku 21 jazyků včetně češtiny pro cizince. Jazykové kurzy, překlady a jazykové korektury v centru Brna.

Visit jc-correct.com

Key Findings

We analyzed Jc-correct.com page load time and found that the first response time was 430 ms and then it took 8.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.

Performance Metrics

jc-correct.com performance score

28

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.4 s

7/100

10%

LCP (Largest Contentful Paint)

Value6.4 s

9/100

25%

SI (Speed Index)

Value8.0 s

22/100

10%

TBT (Total Blocking Time)

Value760 ms

39/100

30%

CLS (Cumulative Layout Shift)

Value0.186

65/100

15%

TTI (Time to Interactive)

Value11.5 s

18/100

10%

Network Requests Diagram

jc-correct.com

430 ms

www.jc-correct.com

3703 ms

2bedd8732a10b628b34541eeb6f4bead.php

590 ms

wk-styles-d785aed9.css

580 ms

jquery.min.js

9 ms

Our browser made a total of 101 requests to load all elements on the main page. We found that 58% of them (59 requests) were addressed to the original Jc-correct.com, 10% (10 requests) were made to Static.xx.fbcdn.net and 6% (6 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (3.7 sec) belongs to the original domain Jc-correct.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 325.2 kB (25%)

Content Size

1.3 MB

After Optimization

966.9 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Jc-correct.com main page is 1.3 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. 50% of websites need less resources to load. Images take 892.0 kB which makes up the majority of the site volume.

HTML Optimization

-89%

Potential reduce by 85.6 kB

  • Original 96.5 kB
  • After minification 60.7 kB
  • After compression 11.0 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 35.8 kB, which is 37% 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 85.6 kB or 89% of the original size.

Image Optimization

-2%

Potential reduce by 20.1 kB

  • Original 892.0 kB
  • After minification 871.9 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. Jc Correct images are well optimized though.

JavaScript Optimization

-69%

Potential reduce by 149.4 kB

  • Original 217.8 kB
  • After minification 217.3 kB
  • After compression 68.4 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 149.4 kB or 69% of the original size.

CSS Optimization

-82%

Potential reduce by 70.2 kB

  • Original 85.9 kB
  • After minification 85.8 kB
  • After compression 15.7 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. Jc-correct.com needs all CSS files to be minified and compressed as it can save up to 70.2 kB or 82% of the original size.

Requests Breakdown

Number of requests can be reduced by 66 (76%)

Requests Now

87

After Optimization

21

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 87 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Jc Correct. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 21 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

jc-correct.com

jc-correct.com

430 ms

www.jc-correct.com

www.jc-correct.com

3703 ms

2bedd8732a10b628b34541eeb6f4bead.php

2bedd8732a10b628b34541eeb6f4bead.php

590 ms

wk-styles-d785aed9.css

wk-styles-d785aed9.css

580 ms

jquery.min.js

jquery.min.js

9 ms

jquerynoconflict.js

jquerynoconflict.js

248 ms

bootstrap.min.js

bootstrap.min.js

337 ms

jcemediabox.js

jcemediabox.js

449 ms

rokbox.js

rokbox.js

473 ms

jquery.pwebbox.min.js

jquery.pwebbox.min.js

563 ms

uikit-c5211bef.js

uikit-c5211bef.js

799 ms

wk-scripts-3a832b21.js

wk-scripts-3a832b21.js

677 ms

css

css

70 ms

main.js

main.js

696 ms

sdk.js

sdk.js

301 ms

United-Kingdom.png

United-Kingdom.png

298 ms

Algeria.png

Algeria.png

299 ms

Bulgaria.png

Bulgaria.png

299 ms

Czech-Republic.png

Czech-Republic.png

299 ms

China.png

China.png

296 ms

Finland.png

Finland.png

296 ms

France.png

France.png

432 ms

Israel.png

Israel.png

435 ms

Croatia.png

Croatia.png

431 ms

Italy.png

Italy.png

429 ms

Hungary.png

Hungary.png

429 ms

Germany.png

Germany.png

431 ms

Netherlands-Antilles.png

Netherlands-Antilles.png

511 ms

Norway.png

Norway.png

514 ms

Poland.png

Poland.png

510 ms

Portugal.png

Portugal.png

526 ms

Russia.png

Russia.png

513 ms

Greece.png

Greece.png

517 ms

Serbia.png

Serbia.png

628 ms

Spain.png

Spain.png

637 ms

Sweden.png

Sweden.png

630 ms

logo.png

logo.png

635 ms

mail.png

mail.png

652 ms

tel.png

tel.png

658 ms

search.png

search.png

778 ms

United-Kingdom.png

United-Kingdom.png

769 ms

Czech-Republic.png

Czech-Republic.png

767 ms

France.png

France.png

764 ms

Italy.png

Italy.png

769 ms

Germany.png

Germany.png

776 ms

Russia.png

Russia.png

883 ms

Spain.png

Spain.png

887 ms

European-Union.png

European-Union.png

885 ms

ikona-IS.png

ikona-IS.png

897 ms

uv2.png

uv2.png

1050 ms

gtm.js

gtm.js

73 ms

uv3.png

uv3.png

943 ms

5M21SdFLkD52QavfmHs6cA.ttf

5M21SdFLkD52QavfmHs6cA.ttf

218 ms

oOeFwZNlrTefzLYmlVV1UKCWcynf_cDxXwCLxiixG1c.ttf

oOeFwZNlrTefzLYmlVV1UKCWcynf_cDxXwCLxiixG1c.ttf

275 ms

Pru33qjShpZSmG3z6VYwnaCWcynf_cDxXwCLxiixG1c.ttf

Pru33qjShpZSmG3z6VYwnaCWcynf_cDxXwCLxiixG1c.ttf

297 ms

BhNUF0UvSiDyKi5GMZK0cPesZW2xOQ-xsNqO47m55DA.ttf

BhNUF0UvSiDyKi5GMZK0cPesZW2xOQ-xsNqO47m55DA.ttf

298 ms

97uahxiqZRoncBaCEI3aW6CWcynf_cDxXwCLxiixG1c.ttf

97uahxiqZRoncBaCEI3aW6CWcynf_cDxXwCLxiixG1c.ttf

298 ms

9_7S_tWeGDh5Pq3u05RVkqCWcynf_cDxXwCLxiixG1c.ttf

9_7S_tWeGDh5Pq3u05RVkqCWcynf_cDxXwCLxiixG1c.ttf

298 ms

analytics.js

analytics.js

96 ms

conversion_async.js

conversion_async.js

97 ms

fbds.js

fbds.js

148 ms

roboto-regular-webfont.woff

roboto-regular-webfont.woff

905 ms

roboto-bold-webfont.woff

roboto-bold-webfont.woff

827 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

1308 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

1380 ms

popup.html

popup.html

858 ms

tooltip.html

tooltip.html

897 ms

158 ms

xd_arbiter.php

xd_arbiter.php

146 ms

xd_arbiter.php

xd_arbiter.php

276 ms

collect

collect

12 ms

collect

collect

81 ms

42 ms

collect

collect

9 ms

collect

collect

79 ms

uv4.png

uv4.png

835 ms

foto_correct.jpg

foto_correct.jpg

1903 ms

sipka.png

sipka.png

925 ms

uvod_cz.png

uvod_cz.png

1871 ms

sipka_seda.png

sipka_seda.png

962 ms

71 ms

38 ms

ga-audiences

ga-audiences

18 ms

22 ms

page.php

page.php

133 ms

LUdypCgtRlc.css

LUdypCgtRlc.css

178 ms

q68gy-v_YMF.js

q68gy-v_YMF.js

294 ms

g8s8hhR3cWq.js

g8s8hhR3cWq.js

378 ms

ihptErjAmMX.js

ihptErjAmMX.js

341 ms

983706_790762214269499_6366891717531883314_n.jpg

983706_790762214269499_6366891717531883314_n.jpg

244 ms

10322779_790749104270810_6747817751390953046_n.jpg

10322779_790749104270810_6747817751390953046_n.jpg

281 ms

12742294_10205999138799203_5375325174428420101_n.jpg

12742294_10205999138799203_5375325174428420101_n.jpg

323 ms

12801402_882229675232724_720488124089439214_n.jpg

12801402_882229675232724_720488124089439214_n.jpg

360 ms

12249668_10207758698589948_4147768627099483455_n.jpg

12249668_10207758698589948_4147768627099483455_n.jpg

362 ms

12795411_10208481362422013_7458189305578007232_n.jpg

12795411_10208481362422013_7458189305578007232_n.jpg

362 ms

wL6VQj7Ab77.png

wL6VQj7Ab77.png

50 ms

s7jcwEQH7Sx.png

s7jcwEQH7Sx.png

50 ms

R9a_DtVRZgv.js

R9a_DtVRZgv.js

43 ms

cUDgRFxaoIk.js

cUDgRFxaoIk.js

43 ms

0JBr1QHp8Gi.js

0JBr1QHp8Gi.js

45 ms

kDOzhTr2W91.js

kDOzhTr2W91.js

82 ms

Accessibility Review

jc-correct.com accessibility score

90

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

<frame> or <iframe> elements do not have a title

High

Links do not have a discernible name

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Best Practices

jc-correct.com 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

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

jc-correct.com SEO score

99

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 Jc-correct.com 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 Jc-correct.com 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

jc-correct.com

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