Report Summary

  • 21

    Performance

    Renders faster than
    41% of other websites

  • 71

    Accessibility

    Visual factors better than
    that of 46% of websites

  • 42

    Best Practices

    More advanced features
    available than in
    28% of websites

  • 83

    SEO

    Google-friendlier than
    54% of websites

aquatlantis.cz

Akvarijní technika Aquatlantis - kvalitní výrobky pro akvaristy

Page Load Speed

4.8 sec in total

First Response

1.1 sec

Resources Loaded

3.5 sec

Page Rendered

199 ms

aquatlantis.cz screenshot

About Website

Visit aquatlantis.cz now to see the best up-to-date Aquatlantis content and also check out these interesting facts you probably never knew about aquatlantis.cz

Kvalitní výrobky pro akvaristy , vyrobené v EU dodává nyní firma Rataj .Základním rysem produktů je perfektní zpracování skla a plastových nebo hliníkových krytů. Asi největší předností je řešení filt...

Visit aquatlantis.cz

Key Findings

We analyzed Aquatlantis.cz page load time and found that the first response time was 1.1 sec and then it took 3.7 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

aquatlantis.cz performance score

21

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.3 s

40/100

10%

LCP (Largest Contentful Paint)

Value4.2 s

45/100

25%

SI (Speed Index)

Value8.6 s

17/100

10%

TBT (Total Blocking Time)

Value2,310 ms

5/100

30%

CLS (Cumulative Layout Shift)

Value0.616

10/100

15%

TTI (Time to Interactive)

Value15.3 s

7/100

10%

Network Requests Diagram

aquatlantis.cz

1147 ms

cssloader-9e18dc9353c5.css

918 ms

jsloader-87f73cfa1de9.js

313 ms

plusone.js

76 ms

api.js

55 ms

Our browser made a total of 66 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Aquatlantis.cz, 39% (26 requests) were made to Endora.cz and 30% (20 requests) were made to Static.xx.fbcdn.net. The less responsive or slowest element that took the longest time to load (1.1 sec) belongs to the original domain Aquatlantis.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 868.8 kB (70%)

Content Size

1.2 MB

After Optimization

369.2 kB

In fact, the total size of Aquatlantis.cz main page is 1.2 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. 70% of websites need less resources to load. Javascripts take 791.3 kB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 80.7 kB

  • Original 98.4 kB
  • After minification 93.5 kB
  • After compression 17.6 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 80.7 kB or 82% of the original size.

Image Optimization

-14%

Potential reduce by 12.1 kB

  • Original 86.1 kB
  • After minification 74.0 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. Obviously, Aquatlantis needs image optimization as it can save up to 12.1 kB or 14% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-71%

Potential reduce by 561.5 kB

  • Original 791.3 kB
  • After minification 746.0 kB
  • After compression 229.8 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 561.5 kB or 71% of the original size.

CSS Optimization

-82%

Potential reduce by 214.4 kB

  • Original 262.1 kB
  • After minification 221.8 kB
  • After compression 47.7 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. Aquatlantis.cz needs all CSS files to be minified and compressed as it can save up to 214.4 kB or 82% of the original size.

Requests Breakdown

Number of requests can be reduced by 28 (45%)

Requests Now

62

After Optimization

34

The browser has sent 62 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Aquatlantis. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 23 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

aquatlantis.cz accessibility score

71

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.

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

<frame> or <iframe> elements do not have a title

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Internationalization and localization

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

Impact

Issue

High

<html> element does not have a [lang] attribute

Best Practices

aquatlantis.cz best practices score

42

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

High

Browser errors were logged to the console

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

aquatlantis.cz SEO score

83

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

Image elements do not have [alt] attributes

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

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Aquatlantis.cz can be misinterpreted by Google and other search engines. Our service has detected that Czech is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Aquatlantis.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 data is detected on the main page of Aquatlantis. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: