Tools & Wizards About Us
he3da.cz screenshot

Report Summary

  • 24

    Performance

    Renders faster than
    43% of other websites

  • 74

    Accessibility

    Visual factors better than
    that of 40% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 84

    SEO

    Google-friendlier than
    52% of websites

he3da.cz

HE3DA technology - lithium batteries and nanotechnology

Page Load Speed

21.8 sec in total

First Response

7.4 sec

Resources Loaded

14.1 sec

Page Rendered

370 ms

he3da.cz screenshot

About Website

Welcome to he3da.cz homepage info - get ready to check HE3DA best content for Czech Republic right away, or after learning these important things about he3da.cz

HE3DA® is a nanotechnology platform that pushes the boundaries of lithium batteries a few decades forward.

Visit he3da.cz

Key Findings

We analyzed He3da.cz page load time and found that the first response time was 7.4 sec and then it took 14.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.

Performance Metrics

he3da.cz performance score

24

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value6.6 s

2/100

10%

LCP (Largest Contentful Paint)

Value16.0 s

0/100

25%

SI (Speed Index)

Value15.3 s

1/100

10%

TBT (Total Blocking Time)

Value1,030 ms

26/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value15.7 s

6/100

10%

Network Requests Diagram

7360 ms

cookieblocker.min.css

304 ms

style.css

305 ms

css

30 ms

front.min.css

300 ms

Our browser made a total of 72 requests to load all elements on the main page. We found that 64% of them (46 requests) were addressed to the original He3da.cz, 33% (24 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 (7.4 sec) belongs to the original domain He3da.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 260.9 kB (68%)

Content Size

384.9 kB

After Optimization

124.0 kB

  • HTML
  • Images

In fact, the total size of He3da.cz main page is 384.9 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. 60% of websites need less resources to load. HTML takes 307.3 kB which makes up the majority of the site volume.

HTML Optimization

-85%

Potential reduce by 260.8 kB

  • Original 307.3 kB
  • After minification 302.0 kB
  • After compression 46.4 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 260.8 kB or 85% of the original size.

Image Optimization

-0%

Potential reduce by 20 B

  • Original 77.6 kB
  • After minification 77.6 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. HE3DA images are well optimized though.

Requests Breakdown

Number of requests can be reduced by 28 (61%)

Requests Now

46

After Optimization

18

  • Images
  • JavaScript
  • CSS

The browser has sent 46 CSS, Javascripts, AJAX and image requests in order to completely render the main page of HE3DA. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 21 to 1 for JavaScripts and from 9 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

7360 ms

cookieblocker.min.css

cookieblocker.min.css

304 ms

style.css

style.css

305 ms

css

css

30 ms

front.min.css

front.min.css

300 ms

style.css

style.css

210 ms

jquery.min.js

jquery.min.js

318 ms

jquery-migrate.min.js

jquery-migrate.min.js

216 ms

ie-compat.min.js

ie-compat.min.js

295 ms

ds-script.js

ds-script.js

296 ms

et-core-unified-241.min.css

et-core-unified-241.min.css

296 ms

mediaelementplayer-legacy.min.css

mediaelementplayer-legacy.min.css

311 ms

wp-mediaelement.min.css

wp-mediaelement.min.css

315 ms

idle-timer.min.js

idle-timer.min.js

414 ms

custom.js

custom.js

414 ms

front.min.js

front.min.js

507 ms

scripts.min.js

scripts.min.js

717 ms

jquery.fitvids.js

jquery.fitvids.js

431 ms

jquery.mobile.js

jquery.mobile.js

431 ms

easypiechart.js

easypiechart.js

512 ms

salvattore.js

salvattore.js

510 ms

common.js

common.js

541 ms

complianz.min.js

complianz.min.js

614 ms

particles.min.js

particles.min.js

614 ms

css-particle-target.js

css-particle-target.js

613 ms

mediaelement-and-player.min.js

mediaelement-and-player.min.js

840 ms

mediaelement-migrate.min.js

mediaelement-migrate.min.js

640 ms

wp-mediaelement.min.js

wp-mediaelement.min.js

714 ms

motion-effects.js

motion-effects.js

867 ms

gtm.js

gtm.js

119 ms

Logo2-black-01.svg

Logo2-black-01.svg

481 ms

bh-uno.webp

bh-uno.webp

786 ms

rounded-square.svg

rounded-square.svg

469 ms

down-arrow.svg

down-arrow.svg

470 ms

pozaditechnology.webp

pozaditechnology.webp

763 ms

chart-bg.png

chart-bg.png

670 ms

circle-about.webp

circle-about.webp

1046 ms

battery-charge.svg

battery-charge.svg

595 ms

solar-energy.svg

solar-energy.svg

621 ms

car-battery-charge.svg

car-battery-charge.svg

699 ms

recycling-plastic-bag.svg

recycling-plastic-bag.svg

723 ms

green-power-charge.svg

green-power-charge.svg

770 ms

money-bag.svg

money-bag.svg

801 ms

bg-charging.webp

bg-charging.webp

1311 ms

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20 ms

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24 ms

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29 ms

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33 ms

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37 ms

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37 ms

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38 ms

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37 ms

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37 ms

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53 ms

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53 ms

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53 ms

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58 ms

modules.woff

modules.woff

984 ms

et-divi-dynamic-tb-612-tb-2080-241-late.css

et-divi-dynamic-tb-612-tb-2080-241-late.css

806 ms

bh-uno.webp

bh-uno.webp

485 ms

pozaditechnology.webp

pozaditechnology.webp

197 ms

Accessibility Review

he3da.cz accessibility score

74

Accessibility Issues

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

Links do not have a discernible name

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

he3da.cz best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

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

SEO Factors

he3da.cz SEO score

84

Search Engine Optimization Advices

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Links do not have descriptive text

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

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise He3da.cz can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that He3da.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

he3da.cz

Open Graph data is detected on the main page of HE3DA. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: