Tools & Wizards About Us
3dk.cz screenshot

Report Summary

  • 68

    Performance

    Renders faster than
    80% of other websites

  • 97

    Accessibility

    Visual factors better than
    that of 91% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 100

    SEO

    Google-friendlier than
    94% of websites

3dk.cz

3DK Dentální klinika - zubní ordinace pro 3. tisíciletí

Page Load Speed

2.7 sec in total

First Response

300 ms

Resources Loaded

2.1 sec

Page Rendered

293 ms

3dk.cz screenshot

About Website

Welcome to 3dk.cz homepage info - get ready to check 3DK best content right away, or after learning these important things about 3dk.cz

Dentální klinika Praha 3DK – zubní ordinace pro 3. tisíciletí. Naším cílem je poskytovat péči v oblasti zubního lékařství na nejvyšší úrovni.

Visit 3dk.cz

Key Findings

We analyzed 3dk.cz page load time and found that the first response time was 300 ms and then it took 2.4 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

3dk.cz performance score

68

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.1 s

47/100

10%

LCP (Largest Contentful Paint)

Value6.1 s

12/100

25%

SI (Speed Index)

Value5.4 s

57/100

10%

TBT (Total Blocking Time)

Value30 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.019

100/100

15%

TTI (Time to Interactive)

Value3.3 s

94/100

10%

Network Requests Diagram

3dk.cz

300 ms

3dk.cz

910 ms

style.min.css

94 ms

content.css

187 ms

style.css

356 ms

Our browser made a total of 31 requests to load all elements on the main page. We found that 81% of them (25 requests) were addressed to the original 3dk.cz, 13% (4 requests) were made to Fonts.gstatic.com and 6% (2 requests) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (910 ms) belongs to the original domain 3dk.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 102.5 kB (8%)

Content Size

1.3 MB

After Optimization

1.2 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of 3dk.cz 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. 45% of websites need less resources to load. Images take 1.1 MB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 63.1 kB

  • Original 76.2 kB
  • After minification 76.1 kB
  • After compression 13.0 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 63.1 kB or 83% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 1.1 MB
  • After minification 1.1 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. 3DK images are well optimized though.

JavaScript Optimization

-24%

Potential reduce by 17.6 kB

  • Original 73.5 kB
  • After minification 70.5 kB
  • After compression 56.0 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 17.6 kB or 24% of the original size.

CSS Optimization

-32%

Potential reduce by 21.8 kB

  • Original 68.0 kB
  • After minification 68.0 kB
  • After compression 46.3 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. 3dk.cz needs all CSS files to be minified and compressed as it can save up to 21.8 kB or 32% of the original size.

Requests Breakdown

Number of requests can be reduced by 13 (52%)

Requests Now

25

After Optimization

12

  • Images
  • JavaScript
  • CSS

The browser has sent 25 CSS, Javascripts, AJAX and image requests in order to completely render the main page of 3DK. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

3dk.cz

3dk.cz

300 ms

3dk.cz

3dk.cz

910 ms

style.min.css

style.min.css

94 ms

content.css

content.css

187 ms

style.css

style.css

356 ms

jquery.min.js

jquery.min.js

364 ms

jquery-migrate.min.js

jquery-migrate.min.js

276 ms

css

css

29 ms

css

css

48 ms

miocarousel.css

miocarousel.css

276 ms

animate.css

animate.css

277 ms

front_menu.js

front_menu.js

287 ms

front.js

front.js

410 ms

mw_lightbox.js

mw_lightbox.js

409 ms

miocarousel.js

miocarousel.js

411 ms

waypoints.min.js

waypoints.min.js

411 ms

comment-reply.min.js

comment-reply.min.js

448 ms

3DKlogo.svg

3DKlogo.svg

95 ms

symbol-defs.svg

symbol-defs.svg

187 ms

dentalni-klinika.jpg

dentalni-klinika.jpg

356 ms

kurz-3DK-preparace.jpg

kurz-3DK-preparace.jpg

366 ms

spolupracujeme.jpg

spolupracujeme.jpg

478 ms

cases3x-kolaz-1-1-461x461.png

cases3x-kolaz-1-1-461x461.png

407 ms

Dr-Tom_Dr-Str-1-1.png

Dr-Tom_Dr-Str-1-1.png

369 ms

Dr-Tom_Dr-Str-1-1-297x517.png

Dr-Tom_Dr-Str-1-1-297x517.png

370 ms

symbol-defs.svg

symbol-defs.svg

447 ms

content-icons.svg

content-icons.svg

459 ms

BngbUXZYTXPIvIBgJJSb6s3BzlRRfKOFbvjojISmYWRm.ttf

BngbUXZYTXPIvIBgJJSb6s3BzlRRfKOFbvjojISmYWRm.ttf

18 ms

BngbUXZYTXPIvIBgJJSb6s3BzlRRfKOFbvjoa4OmYWRm.ttf

BngbUXZYTXPIvIBgJJSb6s3BzlRRfKOFbvjoa4OmYWRm.ttf

23 ms

7cHpv4kjgoGqM7E_Ass8.ttf

7cHpv4kjgoGqM7E_Ass8.ttf

26 ms

7cHqv4kjgoGqM7E3t-4s6Vop.ttf

7cHqv4kjgoGqM7E3t-4s6Vop.ttf

35 ms

Accessibility Review

3dk.cz accessibility score

97

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.

Best Practices

3dk.cz best practices score

92

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

SEO Factors

3dk.cz SEO score

100

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

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 3dk.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 3dk.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

3dk.cz

Open Graph description is not detected on the main page of 3DK. 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: