Access ndm.cz. Úvod | Národní divadlo moravskoslezské

name

value

score

weighting

FCP (First Contentful Paint)

Value4.4 s

16/100

10%

LCP (Largest Contentful Paint)

Value11.5 s

0/100

25%

SI (Speed Index)

Value9.0 s

14/100

10%

TBT (Total Blocking Time)

Value1,700 ms

11/100

30%

CLS (Cumulative Layout Shift)

Value0.163

72/100

15%

TTI (Time to Interactive)

Value11.7 s

17/100

10%

ndm.cz

410 ms

3203 ms

ndm.css

307 ms

ndm_r.css

304 ms

all.css

71 ms

Our browser made a total of 82 requests to load all elements on the main page. We found that 96% of them (79 requests) were addressed to the original Ndm.cz, 1% (1 request) were made to Use.fontawesome.com and 1% (1 request) were made to Cookies-spravne.cz. The less responsive or slowest element that took the longest time to load (3.2 sec) belongs to the original domain Ndm.cz.

Content Size

2.8 MB

After Optimization

2.4 MB

In fact, the total size of Ndm.cz main page is 2.8 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 2.4 MB which makes up the majority of the site volume.

HTML Optimization

-90%

Potential reduce by 107.0 kB

Original 119.3 kB
After minification 88.6 kB
After compression 12.4 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 30.8 kB, which is 26% 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 107.0 kB or 90% of the original size.

Image Optimization

-10%

Potential reduce by 240.2 kB

Original 2.4 MB
After minification 2.2 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. Ndm images are well optimized though.

JavaScript Optimization

-27%

Potential reduce by 57.7 kB

Original 211.1 kB
After minification 211.1 kB
After compression 153.4 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 57.7 kB or 27% of the original size.

CSS Optimization

-12%

Potential reduce by 7.8 kB

Original 63.2 kB
After minification 63.2 kB
After compression 55.4 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. Ndm.cz needs all CSS files to be minified and compressed as it can save up to 7.8 kB or 12% of the original size.

Requests Now

After Optimization

The browser has sent 80 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Ndm. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 13 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

These are opportunities to improve the legibility of your content.

High

Background and foreground colors do not have a sufficient contrast ratio.

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.

High

Links do not have a discernible name

Areas of Improvement

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

High

Serves images with low resolution

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

Search Engine Optimization Advices

To appear in search results, crawlers need access to your app.

High

Links are not crawlable

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/).

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 Ndm.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 Ndm.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

ndm.cz

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

Report Summary

Performance

Accessibility

Best Practices

SEO

Úvod | Národní divadlo moravskoslezské

Page Load Speed

First Response

Resources Loaded

Page Rendered

About Website

Key Findings

Performance Metrics

Measured Metrics

FCP (First Contentful Paint)

LCP (Largest Contentful Paint)

SI (Speed Index)

TBT (Total Blocking Time)

CLS (Cumulative Layout Shift)

TTI (Time to Interactive)

Network Requests Diagram

ndm.cz

ndm.css

ndm_r.css

all.css

Page Optimization Overview & Recommendations

Content Size

After Optimization

HTML Optimization

Image Optimization

JavaScript Optimization

CSS Optimization

Requests Breakdown

Requests Now

After Optimization

Network Requests Diagram

ndm.cz

ndm.css

ndm_r.css

all.css

jquery-ui.css

jquery.min.js

owl.carousel.js

bootstrap.bundle.min.js

jquery.jcarousellite.js

jquery-ui.js

main.js

lightbox.js

header.js

tab-switcher.js

colorbox.css

jquery.colorbox-min.js

jquery.colorbox-cs.js

cc

close.png

loading.gif

prev.png

next.png

f_facebook-white.svg

youtube-white.svg

instagram-white.svg

lupa-white.svg

vlastovka-white.svg

tripadvisor-white.svg

logo_cz.svg

mobile-menu-default.png

mobile-menu-active.png

flag-cs.png

mobile-menu-lang-default.png

mobile-menu-lang-active.png

obalka_barva_E61C24.svg

obalka_barva_AA0E21.svg

e_eshop_E61C24.svg

e_eshop_AA0E21.svg

sipka_vpravo_bila.svg

flag-gb.png

e_eshop_barva_E61C24_3.svg

e_eshop_barva_AA0E21_3.svg

sipka_vpravo_cervena.svg

296x197-prodana-nevesta-jpg-1679646719.jpg