Tools & Wizards About Us
energybees.cz screenshot

Report Summary

  • 58

    Performance

    Renders faster than
    74% of other websites

  • 86

    Accessibility

    Visual factors better than
    that of 61% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 92

    SEO

    Google-friendlier than
    74% of websites

energybees.cz

ENERGY BEES a.s. energická společnost

Page Load Speed

2.8 sec in total

First Response

449 ms

Resources Loaded

2.1 sec

Page Rendered

264 ms

energybees.cz screenshot

About Website

Welcome to energybees.cz homepage info - get ready to check ENERGY BEES best content right away, or after learning these important things about energybees.cz

Společnost ENERGY BEES a.s. je energická společnost, jejíž hlavní činností je dodávka elektrické energie a zemního plynu na území České republiky. Jsme ryze česká společnost, a proto dokonale známe po...

Visit energybees.cz

Key Findings

We analyzed Energybees.cz page load time and found that the first response time was 449 ms and then it took 2.4 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 45% of websites can load faster.

Performance Metrics

energybees.cz performance score

58

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.4 s

72/100

10%

LCP (Largest Contentful Paint)

Value4.3 s

43/100

25%

SI (Speed Index)

Value5.1 s

61/100

10%

TBT (Total Blocking Time)

Value550 ms

54/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value9.4 s

30/100

10%

Network Requests Diagram

www.energybees.cz

449 ms

stylesheet-1707730042.css

202 ms

js

68 ms

sdk.js

28 ms

javascript.php

386 ms

Our browser made a total of 16 requests to load all elements on the main page. We found that 75% of them (12 requests) were addressed to the original Energybees.cz, 13% (2 requests) were made to Connect.facebook.net and 6% (1 request) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (568 ms) belongs to the original domain Energybees.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 81.6 kB (13%)

Content Size

646.8 kB

After Optimization

565.2 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Energybees.cz main page is 646.8 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. 20% of websites need less resources to load. Images take 495.9 kB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 30.7 kB

  • Original 38.4 kB
  • After minification 34.1 kB
  • After compression 7.7 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 4.3 kB, which is 11% 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 30.7 kB or 80% of the original size.

Image Optimization

-10%

Potential reduce by 49.2 kB

  • Original 495.9 kB
  • After minification 446.7 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. ENERGY BEES images are well optimized though.

JavaScript Optimization

-1%

Potential reduce by 692 B

  • Original 77.9 kB
  • After minification 77.9 kB
  • After compression 77.2 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

-3%

Potential reduce by 974 B

  • Original 34.6 kB
  • After minification 34.6 kB
  • After compression 33.7 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. Energybees.cz has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 4 (29%)

Requests Now

14

After Optimization

10

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 14 CSS, Javascripts, AJAX and image requests in order to completely render the main page of ENERGY BEES. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

www.energybees.cz

www.energybees.cz

449 ms

stylesheet-1707730042.css

stylesheet-1707730042.css

202 ms

js

js

68 ms

sdk.js

sdk.js

28 ms

javascript.php

javascript.php

386 ms

app-1718709055.js

app-1718709055.js

495 ms

logo-energybees.svg

logo-energybees.svg

102 ms

upoutavka-domacnost.png

upoutavka-domacnost.png

212 ms

upoutavka-podnikatel.png

upoutavka-podnikatel.png

256 ms

upoutavka-velkoodber.png

upoutavka-velkoodber.png

380 ms

17173952993035-10002-eudotace.jpg

17173952993035-10002-eudotace.jpg

568 ms

sdk.js

sdk.js

6 ms

70 ms

fontello.woff

fontello.woff

284 ms

fancybox-cz.js

fancybox-cz.js

100 ms

size1-16872624669331-10002-energybees.png

size1-16872624669331-10002-energybees.png

397 ms

Accessibility Review

energybees.cz accessibility score

86

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

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.

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

[lang] attributes do not have a valid value

Best Practices

energybees.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

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

energybees.cz SEO score

92

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

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 Energybees.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 Energybees.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

energybees.cz

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