Access biosdobris.cz. BIOS s.r.o. Dřevěné střešní konstrukce, vazníky, krovy, střechy na klíč

name

value

score

weighting

FCP (First Contentful Paint)

Value5.0 s

9/100

10%

LCP (Largest Contentful Paint)

Value8.3 s

2/100

25%

SI (Speed Index)

Value8.8 s

15/100

10%

TBT (Total Blocking Time)

Value550 ms

53/100

30%

CLS (Cumulative Layout Shift)

Value0.533

14/100

15%

TTI (Time to Interactive)

Value7.5 s

47/100

10%

www.biossro.cz

1191 ms

global.css

215 ms

uniform.default.css

298 ms

jquery.fancybox.css

299 ms

tooltipster.bundle.min.css

296 ms

Our browser made a total of 123 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original Biosdobris.cz, 3% (4 requests) were made to Fonts.gstatic.com and 2% (3 requests) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (1.2 sec) relates to the external source Biossro.cz.

Content Size

2.6 MB

After Optimization

2.4 MB

In fact, the total size of Biosdobris.cz main page is 2.6 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. 60% of websites need less resources to load. Images take 2.2 MB which makes up the majority of the site volume.

HTML Optimization

-88%

Potential reduce by 88.9 kB

Original 100.7 kB
After minification 72.3 kB
After compression 11.8 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 28.4 kB, which is 28% 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 88.9 kB or 88% of the original size.

Image Optimization

-1%

Potential reduce by 27.0 kB

Original 2.2 MB
After minification 2.2 MB

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. BIOS Dobris images are well optimized though.

JavaScript Optimization

-15%

Potential reduce by 26.6 kB

Original 173.1 kB
After minification 171.5 kB
After compression 146.5 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 26.6 kB or 15% of the original size.

CSS Optimization

-17%

Potential reduce by 13.3 kB

Original 79.1 kB
After minification 77.5 kB
After compression 65.8 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. Biosdobris.cz needs all CSS files to be minified and compressed as it can save up to 13.3 kB or 17% of the original size.

Requests Now

116

After Optimization

The browser has sent 116 CSS, Javascripts, AJAX and image requests in order to completely render the main page of BIOS Dobris. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 33 to 1 for JavaScripts and from 37 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

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.

High

Buttons do not have an accessible name

High

Links do not have a discernible name

These are opportunities to improve the legibility of your content.

High

Background and foreground colors do not have a sufficient contrast ratio.

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

These items highlight common accessibility best practices.

High

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

Areas of Improvement

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

High

Displays images with incorrect aspect ratio

High

Serves images with low resolution

Low

Detected JavaScript libraries

Search Engine Optimization Advices

To appear in search results, crawlers need access to your app.

High

Links are not crawlable

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/).

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

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 Biosdobris.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 Biosdobris.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

biosdobris.cz

Open Graph description is not detected on the main page of BIOS Dobris. 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:

Report Summary

Performance

Accessibility

Best Practices

SEO

BIOS s.r.o. Dřevěné střešní konstrukce, vazníky, krovy, střechy na klíč - BIOS s.r.o.

Page Load Speed

First Response

Resources Loaded

Page Rendered

About Website

Key Findings

Performance Metrics

Measured Metrics

FCP (First Contentful Paint)

LCP (Largest Contentful Paint)

SI (Speed Index)

TBT (Total Blocking Time)

CLS (Cumulative Layout Shift)

TTI (Time to Interactive)

Network Requests Diagram

www.biossro.cz

global.css

uniform.default.css

jquery.fancybox.css

tooltipster.bundle.min.css

Page Optimization Overview & Recommendations

Content Size

After Optimization

HTML Optimization

Image Optimization

JavaScript Optimization

CSS Optimization

Requests Breakdown

Requests Now

After Optimization

Network Requests Diagram

www.biossro.cz

global.css

uniform.default.css

jquery.fancybox.css

tooltipster.bundle.min.css

tooltipster.borderless.min.css

lgcookieslaw_1_1.css

front.css

blockcategories.css

blocklanguages.css

blockcontact.css

blocksearch.css

jquery.autocomplete.css

product_list.css

blocktags.css

blockuserinfo.css

blockviewed.css

homeslider.css

jquery.bxslider.css

tmbrandlogo.css

blocktopmenu.css

superfish-modified.css

tmnewproducts.css

smartblogstyle.css

flexslider.css

front.css

colorbox.css

front.css

cmsshortcodegallery.css

tmstyle.css

jquery-1.11.0.min.js

jquery-migrate-1.2.1.min.js

jquery.easing.js

tools.js

global.js

10-bootstrap.min.js

js

js

css

css

css

custom.css

animate.css