Tools & Wizards About Us
bio-life.cz screenshot

Report Summary

  • 61

    Performance

    Renders faster than
    76% of other websites

  • 79

    Accessibility

    Visual factors better than
    that of 47% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 67

    SEO

    Google-friendlier than
    26% of websites

bio-life.cz

Bio-Life.cz - Vše o výživě, potravinách a zdravém životním stylu, Výživová poradna Food-Life.cz

Page Load Speed

2.6 sec in total

First Response

399 ms

Resources Loaded

2 sec

Page Rendered

163 ms

bio-life.cz screenshot

About Website

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

Bio-Life.cz - BIO potraviny, zdravá výživa, Jóga ONLINE, bio recepty, bio výrobky, přírodní kosmetika, domácí pekárny, výživová poradna a další...

Visit bio-life.cz

Key Findings

We analyzed Bio-life.cz page load time and found that the first response time was 399 ms and then it took 2.2 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

bio-life.cz performance score

61

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.3 s

18/100

10%

LCP (Largest Contentful Paint)

Value8.4 s

2/100

25%

SI (Speed Index)

Value5.5 s

55/100

10%

TBT (Total Blocking Time)

Value50 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value4.7 s

80/100

10%

Network Requests Diagram

bio-life.cz

399 ms

www.bio-life.cz

533 ms

module.css

105 ms

module.css

205 ms

main.css

210 ms

Our browser made a total of 45 requests to load all elements on the main page. We found that 93% of them (42 requests) were addressed to the original Bio-life.cz, 4% (2 requests) were made to Google-analytics.com and 2% (1 request) were made to Xperiencefitnessblog.com. The less responsive or slowest element that took the longest time to load (533 ms) belongs to the original domain Bio-life.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 46.5 kB (12%)

Content Size

386.6 kB

After Optimization

340.1 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Bio-life.cz main page is 386.6 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. 25% of websites need less resources to load. Images take 282.9 kB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 18.6 kB

  • Original 24.5 kB
  • After minification 20.6 kB
  • After compression 5.9 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 3.9 kB, which is 16% 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 18.6 kB or 76% of the original size.

Image Optimization

-4%

Potential reduce by 11.4 kB

  • Original 282.9 kB
  • After minification 271.5 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. Bio Life images are well optimized though.

JavaScript Optimization

-21%

Potential reduce by 15.4 kB

  • Original 74.8 kB
  • After minification 74.5 kB
  • After compression 59.4 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 15.4 kB or 21% of the original size.

CSS Optimization

-24%

Potential reduce by 1.0 kB

  • Original 4.4 kB
  • After minification 4.4 kB
  • After compression 3.3 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. Bio-life.cz needs all CSS files to be minified and compressed as it can save up to 1.0 kB or 24% of the original size.

Requests Breakdown

Number of requests can be reduced by 21 (53%)

Requests Now

40

After Optimization

19

  • Images
  • JavaScript
  • CSS

The browser has sent 40 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Bio Life. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 11 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

bio-life.cz

bio-life.cz

399 ms

www.bio-life.cz

www.bio-life.cz

533 ms

module.css

module.css

105 ms

module.css

module.css

205 ms

main.css

main.css

210 ms

lightbox.css

lightbox.css

201 ms

functions.js

functions.js

202 ms

prototype.js

prototype.js

308 ms

scriptaculous.js

scriptaculous.js

211 ms

lightbox.js

lightbox.js

305 ms

ufo.js

ufo.js

304 ms

datepicker.js

datepicker.js

305 ms

loader.js

loader.js

315 ms

preview_templates.js

preview_templates.js

316 ms

swfobject.js

swfobject.js

407 ms

effects.js

effects.js

104 ms

builder.js

builder.js

103 ms

beachbody2.jpg

beachbody2.jpg

40 ms

2375Yjk.jpg

2375Yjk.jpg

198 ms

body_bg.gif

body_bg.gif

111 ms

header_bg.jpg

header_bg.jpg

256 ms

content_bg.gif

content_bg.gif

112 ms

header-spodek_bg.gif

header-spodek_bg.gif

105 ms

h1_bg.jpg

h1_bg.jpg

104 ms

2667YzU.png

2667YzU.png

111 ms

2671MDR.jpg

2671MDR.jpg

208 ms

2649ZDM.jpg

2649ZDM.jpg

402 ms

h2_doporucujeme.jpg

h2_doporucujeme.jpg

216 ms

recepty.jpg

recepty.jpg

217 ms

vyrobky.jpg

vyrobky.jpg

225 ms

rightbar_bg.gif

rightbar_bg.gif

310 ms

h3_akce_bg.jpg

h3_akce_bg.jpg

318 ms

h3_doporucujeme_bg.jpg

h3_doporucujeme_bg.jpg

318 ms

2632ZTU.jpg

2632ZTU.jpg

522 ms

1935ODg.jpg

1935ODg.jpg

357 ms

menu_li_bg.jpg

menu_li_bg.jpg

411 ms

menu_li_orange_bg.jpg

menu_li_orange_bg.jpg

422 ms

leftbar_bg.gif

leftbar_bg.gif

420 ms

h3_nejctenejsi_bg.jpg

h3_nejctenejsi_bg.jpg

461 ms

footer-submenu.gif

footer-submenu.gif

505 ms

ga.js

ga.js

7 ms

loading.gif

loading.gif

481 ms

closelabel.gif

closelabel.gif

489 ms

__utm.gif

__utm.gif

11 ms

print.css

print.css

104 ms

Accessibility Review

bio-life.cz accessibility score

79

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

High

<object> elements do not have alternate text

Best Practices

bio-life.cz best practices score

58

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

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

SEO Factors

bio-life.cz SEO score

67

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

Document uses plugins

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 Bio-life.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 Bio-life.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

bio-life.cz

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