Report Summary

  • 46

    Performance

    Renders faster than
    64% of other websites

  • 91

    Accessibility

    Visual factors better than
    that of 76% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 91

    SEO

    Google-friendlier than
    70% of websites

mdb.cz

Městské divadlo Brno | Městské divadlo Brno

Page Load Speed

3.7 sec in total

First Response

394 ms

Resources Loaded

3 sec

Page Rendered

312 ms

mdb.cz screenshot

About Website

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

Městské divadlo Brno představuje v rámci současného divadelního dění v České republice jednu z nejprogresivnějších uměleckých institucí s programovým zaměřením na činoherní a muzikálovou divadelní pro...

Visit mdb.cz

Key Findings

We analyzed Mdb.cz page load time and found that the first response time was 394 ms and then it took 3.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Performance Metrics

mdb.cz performance score

46

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.9 s

25/100

10%

LCP (Largest Contentful Paint)

Value5.1 s

24/100

25%

SI (Speed Index)

Value6.3 s

42/100

10%

TBT (Total Blocking Time)

Value570 ms

52/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value9.7 s

29/100

10%

Network Requests Diagram

mdb.cz

394 ms

www.mdb.cz

1241 ms

gtm.js

84 ms

css

54 ms

css

69 ms

Our browser made a total of 72 requests to load all elements on the main page. We found that 83% of them (60 requests) were addressed to the original Mdb.cz, 7% (5 requests) were made to Fonts.gstatic.com and 3% (2 requests) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (1.2 sec) belongs to the original domain Mdb.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 85.0 kB (12%)

Content Size

738.6 kB

After Optimization

653.6 kB

In fact, the total size of Mdb.cz main page is 738.6 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. 55% of websites need less resources to load. Images take 461.1 kB which makes up the majority of the site volume.

HTML Optimization

-87%

Potential reduce by 68.7 kB

  • Original 79.3 kB
  • After minification 59.1 kB
  • After compression 10.7 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. This page needs HTML code to be minified as it can gain 20.3 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 68.7 kB or 87% of the original size.

Image Optimization

-3%

Potential reduce by 11.8 kB

  • Original 461.1 kB
  • After minification 449.3 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. Mdb images are well optimized though.

JavaScript Optimization

-2%

Potential reduce by 3.9 kB

  • Original 158.6 kB
  • After minification 158.0 kB
  • After compression 154.7 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. This website has mostly compressed JavaScripts.

CSS Optimization

-1%

Potential reduce by 546 B

  • Original 39.5 kB
  • After minification 39.5 kB
  • After compression 38.9 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. Mdb.cz has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 17 (27%)

Requests Now

64

After Optimization

47

The browser has sent 64 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Mdb. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 15 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

mdb.cz accessibility score

91

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

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

mdb.cz best practices score

67

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

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

mdb.cz SEO score

91

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

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 Mdb.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 Mdb.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

Open Graph data is detected on the main page of Mdb. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: