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uvm.cz screenshot

Report Summary

  • 39

    Performance

    Renders faster than
    58% of other websites

  • 95

    Accessibility

    Visual factors better than
    that of 86% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 88

    SEO

    Google-friendlier than
    65% of websites

uvm.cz

Tvorba www stránek, eshopů a firemních aplikací | UVM Interactive

Page Load Speed

3.6 sec in total

First Response

398 ms

Resources Loaded

2.6 sec

Page Rendered

553 ms

uvm.cz screenshot

About Website

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

Vytváříme webové stránky, eshopy, firemní online aplikace a mobilní aplikace. Jsme tým zkušených odborníků s praxí.

Visit uvm.cz

Key Findings

We analyzed Uvm.cz page load time and found that the first response time was 398 ms and then it took 3.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.

Performance Metrics

uvm.cz performance score

39

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.7 s

58/100

10%

LCP (Largest Contentful Paint)

Value4.5 s

38/100

25%

SI (Speed Index)

Value5.2 s

59/100

10%

TBT (Total Blocking Time)

Value860 ms

33/100

30%

CLS (Cumulative Layout Shift)

Value0.396

25/100

15%

TTI (Time to Interactive)

Value8.0 s

43/100

10%

Network Requests Diagram

uvm.cz

398 ms

uvm.cz

395 ms

www.uvm.cz

879 ms

style.css

204 ms

polyfill.min.js

328 ms

Our browser made a total of 30 requests to load all elements on the main page. We found that 87% of them (26 requests) were addressed to the original Uvm.cz, 7% (2 requests) were made to Googletagmanager.com and 3% (1 request) were made to Polyfill.io. The less responsive or slowest element that took the longest time to load (879 ms) belongs to the original domain Uvm.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 92.2 kB (27%)

Content Size

337.0 kB

After Optimization

244.8 kB

  • HTML
  • JavaScript

In fact, the total size of Uvm.cz main page is 337.0 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. Javascripts take 280.9 kB which makes up the majority of the site volume.

HTML Optimization

-85%

Potential reduce by 47.7 kB

  • Original 56.1 kB
  • After minification 56.0 kB
  • After compression 8.5 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. HTML code on this page is well minified. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 47.7 kB or 85% of the original size.

JavaScript Optimization

-16%

Potential reduce by 44.6 kB

  • Original 280.9 kB
  • After minification 280.9 kB
  • After compression 236.3 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 44.6 kB or 16% of the original size.

Requests Breakdown

Number of requests can be reduced by 18 (86%)

Requests Now

21

After Optimization

3

  • Images
  • JavaScript
  • CSS

The browser has sent 21 CSS, Javascripts, AJAX and image requests in order to completely render the main page of UVM. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 14 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

uvm.cz

uvm.cz

398 ms

uvm.cz

uvm.cz

395 ms

www.uvm.cz

www.uvm.cz

879 ms

style.css

style.css

204 ms

polyfill.min.js

polyfill.min.js

328 ms

translations

translations

570 ms

intersection-observer.js

intersection-observer.js

325 ms

jquery.min.js

jquery.min.js

577 ms

moment.min.js

moment.min.js

576 ms

moment.lang.cs.js

moment.lang.cs.js

572 ms

bootstrap-bootbox.js

bootstrap-bootbox.js

573 ms

Polyfill.js

Polyfill.js

572 ms

External_Frontend.js

External_Frontend.js

727 ms

Static_Frontend.js

Static_Frontend.js

575 ms

main.js

main.js

642 ms

Site_Pack.js

Site_Pack.js

640 ms

gtm.js

gtm.js

141 ms

logo.svg

logo.svg

502 ms

ph_intro.svg

ph_intro.svg

500 ms

ph_tile.svg

ph_tile.svg

498 ms

ph_text1.svg

ph_text1.svg

734 ms

ph_logo.svg

ph_logo.svg

735 ms

subset-Avenir-Book.woff

subset-Avenir-Book.woff

625 ms

subset-Avenir-Roman.woff

subset-Avenir-Roman.woff

624 ms

subset-Avenir-Light.woff

subset-Avenir-Light.woff

615 ms

subset-Avenir-Medium.woff

subset-Avenir-Medium.woff

622 ms

subset-Avenir-Heavy.woff

subset-Avenir-Heavy.woff

624 ms

subset-Avenir-Black.woff

subset-Avenir-Black.woff

625 ms

landing

landing

256 ms

js

js

57 ms

Accessibility Review

uvm.cz accessibility score

95

Accessibility Issues

ARIA

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.

Impact

Issue

High

[aria-hidden="true"] elements contain focusable descendents

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

uvm.cz best practices score

83

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

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

uvm.cz SEO score

88

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 Uvm.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 Uvm.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

uvm.cz

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