Tools & Wizards About Us
akvarko.cz screenshot

Report Summary

  • 38

    Performance

    Renders faster than
    57% of other websites

  • 69

    Accessibility

    Visual factors better than
    that of 34% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 77

    SEO

    Google-friendlier than
    36% of websites

akvarko.cz

svět akvárií, jezírek a terárií - AKVARKO.cz

Page Load Speed

3.9 sec in total

First Response

851 ms

Resources Loaded

2.8 sec

Page Rendered

260 ms

akvarko.cz screenshot

About Website

Visit akvarko.cz now to see the best up-to-date AKVARKO content for Czech Republic and also check out these interesting facts you probably never knew about akvarko.cz

Akvaristický portál - atlas ryb a rostlin, diskuze, inzerce, rady, návody, akvária a terária návštěvníků, soutěže, adresář obchodů, zajímavosti ze světa akvárií a terárií, kalendář akcí.

Visit akvarko.cz

Key Findings

We analyzed Akvarko.cz page load time and found that the first response time was 851 ms and then it took 3 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

akvarko.cz performance score

38

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.1 s

82/100

10%

LCP (Largest Contentful Paint)

Value3.7 s

57/100

25%

SI (Speed Index)

Value6.8 s

35/100

10%

TBT (Total Blocking Time)

Value2,950 ms

3/100

30%

CLS (Cumulative Layout Shift)

Value0.202

61/100

15%

TTI (Time to Interactive)

Value12.3 s

15/100

10%

Network Requests Diagram

www.akvarko.cz

851 ms

maincss.php

198 ms

indexcss.php

196 ms

index.js

196 ms

main.js

196 ms

Our browser made a total of 99 requests to load all elements on the main page. We found that 39% of them (39 requests) were addressed to the original Akvarko.cz, 8% (8 requests) were made to Pagead2.googlesyndication.com and 7% (7 requests) were made to Apis.google.com. The less responsive or slowest element that took the longest time to load (851 ms) belongs to the original domain Akvarko.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 116.5 kB (30%)

Content Size

393.3 kB

After Optimization

276.9 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Akvarko.cz main page is 393.3 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. 50% of websites need less resources to load. Images take 232.8 kB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 71.2 kB

  • Original 87.3 kB
  • After minification 85.4 kB
  • After compression 16.1 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. 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 71.2 kB or 82% of the original size.

Image Optimization

-3%

Potential reduce by 6.3 kB

  • Original 232.8 kB
  • After minification 226.5 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. AKVARKO images are well optimized though.

JavaScript Optimization

-46%

Potential reduce by 27.1 kB

  • Original 59.1 kB
  • After minification 57.5 kB
  • After compression 31.9 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 27.1 kB or 46% of the original size.

CSS Optimization

-84%

Potential reduce by 11.9 kB

  • Original 14.2 kB
  • After minification 11.1 kB
  • After compression 2.3 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. Akvarko.cz needs all CSS files to be minified and compressed as it can save up to 11.9 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 42 (44%)

Requests Now

96

After Optimization

54

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 96 CSS, Javascripts, AJAX and image requests in order to completely render the main page of AKVARKO. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 25 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

www.akvarko.cz

www.akvarko.cz

851 ms

maincss.php

maincss.php

198 ms

indexcss.php

indexcss.php

196 ms

index.js

index.js

196 ms

main.js

main.js

196 ms

plusone.js

plusone.js

99 ms

show_ads.js

show_ads.js

5 ms

brand

brand

41 ms

pocasi-na-web.php

pocasi-na-web.php

691 ms

brand

brand

111 ms

code

code

436 ms

cb=gapi.loaded_0

cb=gapi.loaded_0

82 ms

all.js

all.js

283 ms

ca-pub-9147290022544157.js

ca-pub-9147290022544157.js

102 ms

zrt_lookup.html

zrt_lookup.html

111 ms

show_ads_impl.js

show_ads_impl.js

110 ms

dot.asp

dot.asp

281 ms

pozadihorni1.jpg

pozadihorni1.jpg

151 ms

vlevo_1.jpg

vlevo_1.jpg

150 ms

vpravo_1.jpg

vpravo_1.jpg

149 ms

ukoshornilevy1.gif

ukoshornilevy1.gif

149 ms

ukoshornipravy1.gif

ukoshornipravy1.gif

150 ms

az1.gif

az1.gif

243 ms

romanholba.png

romanholba.png

345 ms

akvariumzive.jpg

akvariumzive.jpg

269 ms

uvod.gif

uvod.gif

270 ms

vtipylogo.gif

vtipylogo.gif

269 ms

akvarkocz-88-31.gif

akvarkocz-88-31.gif

269 ms

clanek148.jpg

clanek148.jpg

339 ms

clanek147.jpg

clanek147.jpg

342 ms

clanek146.jpg

clanek146.jpg

341 ms

mnahoru_d.gif

mnahoru_d.gif

344 ms

mdolu.gif

mdolu.gif

343 ms

video1525.jpg

video1525.jpg

483 ms

video1524.jpg

video1524.jpg

483 ms

video1523.jpg

video1523.jpg

483 ms

video1522.jpg

video1522.jpg

481 ms

video1521.jpg

video1521.jpg

482 ms

video1520.jpg

video1520.jpg

481 ms

video1519.jpg

video1519.jpg

591 ms

video1517.jpg

video1517.jpg

590 ms

video1516.jpg

video1516.jpg

590 ms

video1515.jpg

video1515.jpg

591 ms

video1514.jpg

video1514.jpg

590 ms

video1513.jpg

video1513.jpg

590 ms

kalendar.gif

kalendar.gif

694 ms

aquascape.png

aquascape.png

785 ms

atlasryb1.jpg

atlasryb1.jpg

694 ms

ukosdolnilevy1.gif

ukosdolnilevy1.gif

691 ms

ukosdolnipravy1.gif

ukosdolnipravy1.gif

694 ms

google_custom_search_watermark.gif

google_custom_search_watermark.gif

157 ms

ads

ads

234 ms

osd.js

osd.js

8 ms

206 ms

xd_arbiter.php

xd_arbiter.php

252 ms

xd_arbiter.php

xd_arbiter.php

528 ms

m_js_controller.js

m_js_controller.js

26 ms

abg.js

abg.js

38 ms

googlelogo_color_112x36dp.png

googlelogo_color_112x36dp.png

104 ms

imgad

imgad

72 ms

nessie_icon_tiamat_white.png

nessie_icon_tiamat_white.png

80 ms

s

s

70 ms

x_button_blue2.png

x_button_blue2.png

55 ms

snih.png

snih.png

146 ms

obcasny-dest.png

obcasny-dest.png

289 ms

prehanky-snih-dest.png

prehanky-snih-dest.png

289 ms

oblacno.png

oblacno.png

289 ms

pozadidolni1.jpg

pozadidolni1.jpg

243 ms

ads

ads

215 ms

ads

ads

264 ms

hit

hit

303 ms

cb=gapi.loaded_1

cb=gapi.loaded_1

85 ms

fastbutton

fastbutton

167 ms

E4WYPs_lNJIuXrWpTsOcc3FIG36RfI0ERc0srw5QW9Y.js

E4WYPs_lNJIuXrWpTsOcc3FIG36RfI0ERc0srw5QW9Y.js

26 ms

postmessageRelay

postmessageRelay

40 ms

js

js

158 ms

api.js

api.js

49 ms

core:rpc:shindig.random:shindig.sha1.js

core:rpc:shindig.random:shindig.sha1.js

101 ms

2536007149-postmessagerelay.js

2536007149-postmessagerelay.js

80 ms

cb=gapi.loaded_0

cb=gapi.loaded_0

55 ms

cb=gapi.loaded_1

cb=gapi.loaded_1

35 ms

like.php

like.php

173 ms

W5F8_SL0XFawnjxHGsZjJA.ttf

W5F8_SL0XFawnjxHGsZjJA.ttf

79 ms

js

js

137 ms

img

img

74 ms

pixel

pixel

33 ms

ck-confirm

ck-confirm

142 ms

zXs1Qh79i0Z.js

zXs1Qh79i0Z.js

485 ms

LVx-xkvaJ0b.png

LVx-xkvaJ0b.png

547 ms

img

img

92 ms

pixel

pixel

14 ms

ck-confirm

ck-confirm

146 ms

Q116_Wu_Com_AwarenessM_V6_D_468x60_EN_US.jpg

Q116_Wu_Com_AwarenessM_V6_D_468x60_EN_US.jpg

33 ms

lidar.js

lidar.js

13 ms

sbhK2lTE.js

sbhK2lTE.js

12 ms

cTrvNaRi.html

cTrvNaRi.html

13 ms

Q116_Wu_Com_AwarenessM_V5_D_468x60_EN_US.jpg

Q116_Wu_Com_AwarenessM_V5_D_468x60_EN_US.jpg

48 ms

activeview

activeview

26 ms

activeview

activeview

13 ms

Accessibility Review

akvarko.cz accessibility score

69

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-*] attributes do not match their roles

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

Form elements do not have associated labels

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

akvarko.cz best practices score

58

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

akvarko.cz SEO score

77

Search Engine Optimization Advices

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 Akvarko.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 Akvarko.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

akvarko.cz

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