Access svetla-online.cz. Jsme specialisté na elektromateriál, zásuvky a vypínače

name

value

score

weighting

FCP (First Contentful Paint)

Value7.7 s

0/100

10%

LCP (Largest Contentful Paint)

Value8.6 s

1/100

25%

SI (Speed Index)

Value9.7 s

11/100

10%

TBT (Total Blocking Time)

Value670 ms

45/100

30%

CLS (Cumulative Layout Shift)

Value0.612

10/100

15%

TTI (Time to Interactive)

Value14.6 s

8/100

10%

www.svetla-online.cz

1338 ms

global.css

193 ms

highdpi.css

281 ms

responsive-tables.css

279 ms

uniform.default.css

278 ms

Our browser made a total of 105 requests to load all elements on the main page. We found that 87% of them (91 requests) were addressed to the original Svetla-online.cz, 5% (5 requests) were made to Fonts.gstatic.com and 4% (4 requests) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (1.3 sec) belongs to the original domain Svetla-online.cz.

Content Size

892.9 kB

After Optimization

631.4 kB

In fact, the total size of Svetla-online.cz main page is 892.9 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. Images take 414.8 kB which makes up the majority of the site volume.

HTML Optimization

-86%

Potential reduce by 186.1 kB

Original 216.4 kB
After minification 174.2 kB
After compression 30.4 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. This page needs HTML code to be minified as it can gain 42.2 kB, which is 20% 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 186.1 kB or 86% of the original size.

Image Optimization

-2%

Potential reduce by 8.0 kB

Original 414.8 kB
After minification 406.9 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. Svetla Online images are well optimized though.

JavaScript Optimization

-33%

Potential reduce by 60.5 kB

Original 184.0 kB
After minification 183.2 kB
After compression 123.5 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 60.5 kB or 33% of the original size.

CSS Optimization

-9%

Potential reduce by 7.1 kB

Original 77.7 kB
After minification 77.6 kB
After compression 70.7 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. Svetla-online.cz has all CSS files already compressed.

Requests Now

After Optimization

The browser has sent 96 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Svetla Online. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 32 to 1 for JavaScripts and from 34 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

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 semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.

High

Links do not have a discernible name

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

Serves images with low resolution

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

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 Svetla-online.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 Svetla-online.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

svetla-online.cz

Open Graph description is not detected on the main page of Svetla Online. 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

Jsme specialisté na elektromateriál, zásuvky a vypínače

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.svetla-online.cz

global.css

highdpi.css

responsive-tables.css

uniform.default.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.svetla-online.cz

global.css

highdpi.css

responsive-tables.css

uniform.default.css

dm_cookies.css

blockcategories.css

blockcurrencies.css

blocklanguages.css

blocknewsletter.css

blocktags.css

blockuserinfo.css

product_list.css

blockviewed.css

custommenu.css

nivo-slider.css

productenquire.css

blockcontact.css

blockcart.css

jquery.bxslider.css

postabcateslider.css

smartblogstyle.css

posvegamenu.css

jquery.countdown.css

possearch.css

bootstrap-select.css

jquery.autocomplete.css

gdpr.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

15-jquery.total-storage.min.js

15-jquery.uniform-modified.js

css

js

css

material-design-iconic-font.min.css

css

animate.css

openservis_p.css