Access brno.idnes.cz. Brno a Ji?n? Morava - Zpr?vy

name

value

score

weighting

FCP (First Contentful Paint)

Value4.7 s

13/100

10%

LCP (Largest Contentful Paint)

Value7.1 s

5/100

25%

SI (Speed Index)

Value23.5 s

0/100

10%

TBT (Total Blocking Time)

Value18,220 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.005

100/100

15%

TTI (Time to Interactive)

Value32.9 s

0/100

10%

brno.idnes.cz

1161 ms

uni.css

245 ms

reklama.css

253 ms

portal.css

526 ms

layout.css

663 ms

Our browser made a total of 144 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Brno.idnes.cz, 28% (40 requests) were made to I.idnes.cz and 22% (31 requests) were made to Gidnes.cz. The less responsive or slowest element that took the longest time to load (2.1 sec) relates to the external source I.idnes.cz.

Content Size

1.6 MB

After Optimization

1.1 MB

In fact, the total size of Brno.idnes.cz main page is 1.6 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 890.8 kB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 111.5 kB

Original 141.9 kB
After minification 126.6 kB
After compression 30.4 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 15.3 kB, which is 11% 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 111.5 kB or 79% of the original size.

Image Optimization

-5%

Potential reduce by 45.1 kB

Original 890.8 kB
After minification 845.7 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. Brno IDNES images are well optimized though.

JavaScript Optimization

-56%

Potential reduce by 174.6 kB

Original 311.9 kB
After minification 307.4 kB
After compression 137.3 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 174.6 kB or 56% of the original size.

CSS Optimization

-80%

Potential reduce by 205.6 kB

Original 256.7 kB
After minification 233.5 kB
After compression 51.2 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. Brno.idnes.cz needs all CSS files to be minified and compressed as it can save up to 205.6 kB or 80% of the original size.

Requests Now

140

After Optimization

The browser has sent 140 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Brno IDNES. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 20 to 1 for JavaScripts and from 9 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 keyboard navigation in your application.

High

[id] attributes on active, focusable elements are not unique

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Areas of Improvement

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

Low

Detected JavaScript libraries

High

Page has valid source maps

Search Engine Optimization Advices

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

High

Links are not crawlable

Format your HTML in a way that enables crawlers to better understand your app’s content.

High

Image elements do not have [alt] attributes

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

N/A
Encoding

WINDOWS-1250

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Brno.idnes.cz can be misinterpreted by Google and other search engines. Our service has detected that Czech is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Brno.idnes.cz main page’s claimed encoding is windows-1250. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

brno.idnes.cz

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

Report Summary

Performance

Accessibility

Best Practices

SEO

Brno a Ji?n? Morava - Zpr?vy - iDNES.cz

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

brno.idnes.cz

uni.css

reklama.css

portal.css

layout.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

brno.idnes.cz

uni.css

reklama.css

portal.css

layout.css

kraje.css

volby-uni.css

uni.js

adtrack.php

reklama.css

paticka.js

css

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