Access predvyber.cz. Personální agentura PŘEDVÝBĚR.CZ Vám ušetří čas s hledáním a výběrem vhodných kandidátů.

name

value

score

weighting

FCP (First Contentful Paint)

Value3.4 s

38/100

10%

LCP (Largest Contentful Paint)

Value13.2 s

0/100

25%

SI (Speed Index)

Value6.9 s

33/100

10%

TBT (Total Blocking Time)

Value800 ms

36/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value14.9 s

8/100

10%

predvyber.cz

526 ms

www.predvyber.cz

435 ms

aos.css

104 ms

bootstrap.css

326 ms

bootstrap-icons.css

213 ms

Our browser made a total of 70 requests to load all elements on the main page. We found that 61% of them (43 requests) were addressed to the original Predvyber.cz, 33% (23 requests) were made to Fonts.gstatic.com and 1% (1 request) 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 Predvyber.cz.

Content Size

2.3 MB

After Optimization

2.2 MB

In fact, the total size of Predvyber.cz main page is 2.3 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 1.9 MB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 23.9 kB

Original 30.7 kB
After minification 25.5 kB
After compression 6.8 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 5.1 kB, which is 17% 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 23.9 kB or 78% of the original size.

Image Optimization

-4%

Potential reduce by 69.3 kB

Original 1.9 MB
After minification 1.8 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. Predvyber images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 978 B

Original 326.3 kB
After minification 326.3 kB
After compression 325.3 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. This website has mostly compressed JavaScripts.

CSS Optimization

-6%

Potential reduce by 4.9 kB

Original 77.3 kB
After minification 77.3 kB
After compression 72.4 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. Predvyber.cz has all CSS files already compressed.

Requests Now

After Optimization

The browser has sent 42 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Predvyber. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 12 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 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

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

High

Displays images with incorrect aspect ratio

High

Serves images with low resolution

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

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 Predvyber.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 Predvyber.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

predvyber.cz

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

Personální agentura PŘEDVÝBĚR.CZ Vám ušetří čas s hledáním a výběrem vhodných kandidátů.

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

predvyber.cz

www.predvyber.cz

aos.css

bootstrap.css

bootstrap-icons.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

predvyber.cz

www.predvyber.cz

aos.css

bootstrap.css

bootstrap-icons.css

boxicons.min.css

glightbox.min.css

remixicon.css

swiper-bundle.min.css

style.css

css

aos.js

bootstrap.bundle.min.js

bootstrap.min.js

glightbox.min.js

isotope.pkgd.min.js

validate.js

purecounter.js

swiper-bundle.min.js

main.js

api.js

gtm.js

logo-predvyber.png

cz.png

en.png

sk.png

hero-bg25.jpg

vyhody8.png

i-ctyri-roky-po-kovidu-vnimaji-zamestnanci-home-office-jako-benefit.jpg

zamestnanci-vnimaji-ochlazeni-trhu-prace-jen-sestina-jeste-letos-zmeni-misto.jpg

praci-ukrajincu-posuzuji-cesi-strizliveji.jpg

dhl.png

madeta.png

plzensky-prazdroj.png

skoda.png

stabilo.png

tesla.png

zeppelin.png

praha.jpg

brno.jpg

ostrava.jpg

brtnice.jpg

logo-predvyber-white2.png