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ntc.cz screenshot

Report Summary

  • 73

    Performance

    Renders faster than
    82% of other websites

  • 54

    Accessibility

    Visual factors better than
    that of 23% of websites

  • 50

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 58

    SEO

    Google-friendlier than
    21% of websites

ntc.cz

NTC - Profesionální stavební technika

Page Load Speed

5.8 sec in total

First Response

1.1 sec

Resources Loaded

4.4 sec

Page Rendered

273 ms

ntc.cz screenshot

About Website

Click here to check amazing NTC content. Otherwise, check out these important facts you probably never knew about ntc.cz

NTC - profesionální stavební technika

Visit ntc.cz

Key Findings

We analyzed Ntc.cz page load time and found that the first response time was 1.1 sec and then it took 4.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.

Performance Metrics

ntc.cz performance score

73

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.5 s

36/100

10%

LCP (Largest Contentful Paint)

Value4.2 s

45/100

25%

SI (Speed Index)

Value5.5 s

55/100

10%

TBT (Total Blocking Time)

Value60 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.049

99/100

15%

TTI (Time to Interactive)

Value5.1 s

75/100

10%

Network Requests Diagram

ntc.cz

1145 ms

stylesheet.css

466 ms

mchal-slideshow.css

230 ms

jquery-ui.css

5 ms

jquery-1.7.2.min.js

825 ms

Our browser made a total of 56 requests to load all elements on the main page. We found that 96% of them (54 requests) were addressed to the original Ntc.cz, 4% (2 requests) were made to Code.jquery.com. The less responsive or slowest element that took the longest time to load (2.3 sec) belongs to the original domain Ntc.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 162.8 kB (24%)

Content Size

664.9 kB

After Optimization

502.1 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Ntc.cz main page is 664.9 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. 25% of websites need less resources to load. Images take 467.3 kB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 19.6 kB

  • Original 24.2 kB
  • After minification 21.2 kB
  • After compression 4.6 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 3.0 kB, which is 12% 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 19.6 kB or 81% of the original size.

Image Optimization

-5%

Potential reduce by 24.2 kB

  • Original 467.3 kB
  • After minification 443.1 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. NTC images are well optimized though.

JavaScript Optimization

-67%

Potential reduce by 89.3 kB

  • Original 133.9 kB
  • After minification 128.5 kB
  • After compression 44.6 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 89.3 kB or 67% of the original size.

CSS Optimization

-75%

Potential reduce by 29.8 kB

  • Original 39.6 kB
  • After minification 33.3 kB
  • After compression 9.7 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. Ntc.cz needs all CSS files to be minified and compressed as it can save up to 29.8 kB or 75% of the original size.

Requests Breakdown

Number of requests can be reduced by 17 (31%)

Requests Now

54

After Optimization

37

  • Images
  • JavaScript
  • CSS

The browser has sent 54 CSS, Javascripts, AJAX and image requests in order to completely render the main page of NTC. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

ntc.cz

ntc.cz

1145 ms

stylesheet.css

stylesheet.css

466 ms

mchal-slideshow.css

mchal-slideshow.css

230 ms

jquery-ui.css

jquery-ui.css

5 ms

jquery-1.7.2.min.js

jquery-1.7.2.min.js

825 ms

jquery-ui.js

jquery-ui.js

11 ms

lightbox.css

lightbox.css

234 ms

jquery-ui-1.8.18.custom.min.js

jquery-ui-1.8.18.custom.min.js

466 ms

jquery.smooth-scroll.min.js

jquery.smooth-scroll.min.js

457 ms

lightbox.js

lightbox.js

575 ms

scripts.js

scripts.js

470 ms

javascript.js

javascript.js

691 ms

logo.gif

logo.gif

119 ms

top-bg.jpg

top-bg.jpg

223 ms

flag-cz.jpg

flag-cz.jpg

235 ms

flag-pl.jpg

flag-pl.jpg

235 ms

flag-en.jpg

flag-en.jpg

238 ms

flag-by.jpg

flag-by.jpg

356 ms

menu-top-bg.jpg

menu-top-bg.jpg

321 ms

menu-top-sepr.jpg

menu-top-sepr.jpg

450 ms

bg.jpg

bg.jpg

934 ms

text.png

text.png

468 ms

no1-shadow.png

no1-shadow.png

585 ms

no1.png

no1.png

785 ms

no2-shadow.png

no2-shadow.png

713 ms

no2.png

no2.png

1150 ms

no3-shadow.png

no3-shadow.png

823 ms

no3.png

no3.png

1047 ms

no4-shadow.png

no4-shadow.png

1067 ms

no4.png

no4.png

1373 ms

no6-shadow.png

no6-shadow.png

1165 ms

no6.png

no6.png

1391 ms

no5-shadow.png

no5-shadow.png

1399 ms

no5.png

no5.png

1544 ms

no7-shadow.png

no7-shadow.png

1492 ms

no7.png

no7.png

1631 ms

uvod-pech.jpg

uvod-pech.jpg

1843 ms

menu-item1-right.jpg

menu-item1-right.jpg

1736 ms

menu-item-pujcony.jpg

menu-item-pujcony.jpg

1752 ms

menu-item-nahradni-dily.jpg

menu-item-nahradni-dily.jpg

1827 ms

menu-item-servis.jpg

menu-item-servis.jpg

1776 ms

menu-item-pouzite-stroje.jpg

menu-item-pouzite-stroje.jpg

1864 ms

menu-item-prodej-zbozi.jpg

menu-item-prodej-zbozi.jpg

1970 ms

menu-item-shop.jpg

menu-item-shop.jpg

2105 ms

li-blue.jpg

li-blue.jpg

2007 ms

583_small.jpg

583_small.jpg

2060 ms

581_small.jpg

581_small.jpg

2065 ms

582_small.jpg

582_small.jpg

2095 ms

491_small.jpg

491_small.jpg

2124 ms

525_small.jpg

525_small.jpg

2031 ms

492_small.jpg

492_small.jpg

2066 ms

344_small.jpg

344_small.jpg

2071 ms

331_small.jpg

331_small.jpg

2335 ms

bottom-bg.jpg

bottom-bg.jpg

2026 ms

loading.gif

loading.gif

2087 ms

close.png

close.png

2038 ms

Accessibility Review

ntc.cz accessibility score

54

Accessibility Issues

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

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

Form elements do not have associated labels

High

Links do not have a discernible name

Best Practices

ntc.cz best practices score

50

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

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

ntc.cz SEO score

58

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

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 Ntc.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 Ntc.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

ntc.cz

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