Tools & Wizards About Us

Report Summary

  • 39

    Performance

    Renders faster than
    58% of other websites

  • 82

    Accessibility

    Visual factors better than
    that of 52% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 90

    SEO

    Google-friendlier than
    68% of websites

alternetivo.cz

Alternetivo | IT distributor | Switching/routing, monitoring, síťová bezpečnost, kabeláže, bezdrátové a optické sítě

Page Load Speed

5.6 sec in total

First Response

360 ms

Resources Loaded

4.8 sec

Page Rendered

467 ms

About Website

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

Technologie pro přenos hlasu a dat: switching/routing, bezdrátové a optické sítě, strukturované kabeláže, síťová bezpečnost, IP monitoring

Visit alternetivo.cz

Key Findings

We analyzed Alternetivo.cz page load time and found that the first response time was 360 ms and then it took 5.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.

Performance Metrics

alternetivo.cz performance score

39

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.9 s

4/100

10%

LCP (Largest Contentful Paint)

Value10.0 s

0/100

25%

SI (Speed Index)

Value9.6 s

11/100

10%

TBT (Total Blocking Time)

Value180 ms

91/100

30%

CLS (Cumulative Layout Shift)

Value0.282

43/100

15%

TTI (Time to Interactive)

Value8.2 s

40/100

10%

Network Requests Diagram

alternetivo.cz

360 ms

www.alternetivo.cz

2670 ms

styles.css

459 ms

status_css.asp

377 ms

user.css

476 ms

Our browser made a total of 52 requests to load all elements on the main page. We found that 73% of them (38 requests) were addressed to the original Alternetivo.cz, 17% (9 requests) were made to Fonts.gstatic.com and 4% (2 requests) were made to Ajax.googleapis.com. The less responsive or slowest element that took the longest time to load (2.7 sec) belongs to the original domain Alternetivo.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 615.1 kB (19%)

Content Size

3.2 MB

After Optimization

2.6 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Alternetivo.cz main page is 3.2 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. 50% of websites need less resources to load. Images take 2.4 MB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 52.5 kB

  • Original 66.7 kB
  • After minification 57.3 kB
  • After compression 14.1 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 9.4 kB, which is 14% 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 52.5 kB or 79% of the original size.

Image Optimization

-2%

Potential reduce by 36.1 kB

  • Original 2.4 MB
  • After minification 2.3 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. Alternetivo images are well optimized though.

JavaScript Optimization

-54%

Potential reduce by 190.7 kB

  • Original 354.6 kB
  • After minification 328.5 kB
  • After compression 164.0 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 190.7 kB or 54% of the original size.

CSS Optimization

-85%

Potential reduce by 335.8 kB

  • Original 394.3 kB
  • After minification 320.3 kB
  • After compression 58.5 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. Alternetivo.cz needs all CSS files to be minified and compressed as it can save up to 335.8 kB or 85% of the original size.

Requests Breakdown

Number of requests can be reduced by 10 (25%)

Requests Now

40

After Optimization

30

  • Images
  • JavaScript
  • CSS

The browser has sent 40 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Alternetivo. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

alternetivo.cz accessibility score

82

Accessibility Issues

Names and labels

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.

Impact

Issue

High

Buttons do not have an accessible name

High

Links do not have a discernible name

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.

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

Best Practices

alternetivo.cz best practices score

67

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

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

alternetivo.cz SEO score

90

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 Alternetivo.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 Alternetivo.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

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