Access expres.cz. Expres.cz - Zprávy, které baví.

name

value

score

weighting

FCP (First Contentful Paint)

Value4.8 s

11/100

10%

LCP (Largest Contentful Paint)

Value9.7 s

0/100

25%

SI (Speed Index)

Value10.2 s

8/100

10%

TBT (Total Blocking Time)

Value1,790 ms

10/100

30%

CLS (Cumulative Layout Shift)

Value0.057

98/100

15%

TTI (Time to Interactive)

Value35.2 s

0/100

10%

expres.cz

291 ms

www.expres.cz

578 ms

uni.css

489 ms

reklama.css

515 ms

expres.css

620 ms

Our browser made a total of 87 requests to load all elements on the main page. We found that 2% of them (2 requests) were addressed to the original Expres.cz, 79% (69 requests) were made to 1gr.cz and 3% (3 requests) were made to Spir.hit.gemius.pl. The less responsive or slowest element that took the longest time to load (1.1 sec) relates to the external source 1gr.cz.

Content Size

3.3 MB

After Optimization

3.2 MB

In fact, the total size of Expres.cz main page is 3.3 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. 70% of websites need less resources to load. Images take 3.1 MB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 73.9 kB

Original 95.0 kB
After minification 82.8 kB
After compression 21.0 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. This page needs HTML code to be minified as it can gain 12.2 kB, which is 13% 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 73.9 kB or 78% of the original size.

Image Optimization

-0%

Potential reduce by 1.5 kB

Original 3.1 MB
After minification 3.1 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. Expres images are well optimized though.

JavaScript Optimization

-6%

Potential reduce by 6.4 kB

Original 101.2 kB
After minification 101.1 kB
After compression 94.7 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

-19%

Potential reduce by 5.3 kB

Original 28.3 kB
After minification 28.3 kB
After compression 23.0 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. Expres.cz needs all CSS files to be minified and compressed as it can save up to 5.3 kB or 19% 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 Expres. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 11 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 keyboard navigation in your application.

High

[accesskey] values are not unique

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 interpretation of your content by users in different locales.

High

<html> element does not have a [lang] attribute

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

These items highlight common accessibility best practices.

High

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

Areas of Improvement

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

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

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

N/A
Language Claimed

CS
Encoding

WINDOWS-1250

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Expres.cz can be misinterpreted by Google and other search engines. Unfortunately we cannot identify language used on the page (probably there is a mix of languages, too little text or something else), while the claimed language is Czech. Our system also found out that Expres.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

expres.cz

Open Graph data is detected on the main page of Expres. 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

Expres.cz - Zprávy, které baví.

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

expres.cz

www.expres.cz

uni.css

reklama.css

expres.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

expres.cz

www.expres.cz

uni.css

reklama.css

expres.css

uni.js

2015.js

cpex-cmp.min.js

paticka.js

expres-base.css

css2

xgemius.js

gtm.js

fbevents.js

free.gif

LogoExpres4.svg

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BK9d43c10ac1_44motoriste_placnuti_otv.jpg

idnes.png

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ln-logo.png

RKJ987062__TOM4536.JPG

DAJ8fd292_profimedia_0183477661.jpg

IWEB47.gif

free.gif

sdk.js

login0.svg

ico-face.svg

ico-inst.svg

ico-search3.svg

idnes.svg

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KFOlCnqEu92Fr1MmWUlvAw.ttf

1Ptgg87LROyAm0K0.ttf

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