Access usetreno.cz. Ušetřeno.cz - Chytří šetří s námi!

name

value

score

weighting

FCP (First Contentful Paint)

Value4.0 s

24/100

10%

LCP (Largest Contentful Paint)

Value4.6 s

35/100

25%

SI (Speed Index)

Value6.6 s

37/100

10%

TBT (Total Blocking Time)

Value10,020 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.012

100/100

15%

TTI (Time to Interactive)

Value31.7 s

0/100

10%

usetreno.cz

309 ms

www.usetreno.cz

523 ms

index.min.css

470 ms

jquery.min.js

40 ms

jquery-ui.min.js

60 ms

Our browser made a total of 142 requests to load all elements on the main page. We found that 18% of them (25 requests) were addressed to the original Usetreno.cz, 17% (24 requests) were made to Facebook.com and 15% (22 requests) were made to Static.xx.fbcdn.net. The less responsive or slowest element that took the longest time to load (723 ms) relates to the external source Static.xx.fbcdn.net.

Content Size

1.8 MB

After Optimization

642.2 kB

In fact, the total size of Usetreno.cz main page is 1.8 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. 60% of websites need less resources to load. CSS take 700.0 kB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 40.2 kB

Original 50.1 kB
After minification 39.7 kB
After compression 9.8 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 10.3 kB, which is 21% 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 40.2 kB or 80% of the original size.

Image Optimization

-11%

Potential reduce by 36.7 kB

Original 327.5 kB
After minification 290.8 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. Obviously, Usetreno needs image optimization as it can save up to 36.7 kB or 11% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-67%

Potential reduce by 456.9 kB

Original 685.8 kB
After minification 685.7 kB
After compression 228.9 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 456.9 kB or 67% of the original size.

CSS Optimization

-84%

Potential reduce by 587.3 kB

Original 700.0 kB
After minification 693.4 kB
After compression 112.7 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. Usetreno.cz needs all CSS files to be minified and compressed as it can save up to 587.3 kB or 84% of the original size.

Requests Now

125

After Optimization

The browser has sent 125 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Usetreno. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 42 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

High

ARIA input fields do not have accessible names

High

Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.

These are opportunities to improve keyboard navigation in your application.

High

Heading elements are not in a sequentially-descending order

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

Low

Ensure CSP is effective against XSS attacks

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

Language and Encoding

Language Detected

CS
Language Claimed

CZ
Encoding

UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Usetreno.cz can be misinterpreted by Google and other search engines. Our service has detected that Czech is used on the page, and it does not match the claimed language. Our system also found out that Usetreno.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

usetreno.cz

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

Ušetřeno.cz - Chytří šetří s námi!

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

usetreno.cz

www.usetreno.cz

index.min.css

jquery.min.js

jquery-ui.min.js

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

usetreno.cz

www.usetreno.cz

index.min.css

jquery.min.js

jquery-ui.min.js

jsapi

adf.min.js

index.min.js

jquery.dataBlockToggle.min.js

parsley.min.js

gtm.js

gpt.js

slider-usetreno-plyn-aktualni-2016.jpg

logo-claim3.png

header-ico-phone.png

sprite.png

hp-infobox-clock.png

hp-infobox-medal.png

hp-infobox-notes.png

owl-out.png

owl-gift.png

newsletter-texture-circles.png

newsletter-stamp.png

newsletter-texture-stripes.png

check-small.png

srovnani-plyn.png

srovnani-hypoteky.png

srovnani-pujcky.png

srovnani-pojisteni.png

footer-bg.png

footer-magazine.png

owl-small.png

hp-slider-tarify.png

srovnani-sporicich-slider.png

banknotes-82948_640_large.jpg

pexels_coffee-cup-table-morning_small.jpg

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