Tools & Wizards About Us
kostanj.si screenshot

Report Summary

  • 76

    Performance

    Renders faster than
    84% of other websites

  • 81

    Accessibility

    Visual factors better than
    that of 52% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 77

    SEO

    Google-friendlier than
    36% of websites

kostanj.si

Captcha

Page Load Speed

3.5 sec in total

First Response

645 ms

Resources Loaded

2.7 sec

Page Rendered

131 ms

kostanj.si screenshot

About Website

Visit kostanj.si now to see the best up-to-date Kostanj content and also check out these interesting facts you probably never knew about kostanj.si

Kostanj je eno izmed vodilnih slovenskih ponudnikov filtrov za odstranjevanje neželenih primesi (smradu ali drugih komponent) iz zraka. Svojim naročnikom ponujamo celovite rešitve, saj se ukvarjamo s ...

Visit kostanj.si

Key Findings

We analyzed Kostanj.si page load time and found that the first response time was 645 ms and then it took 2.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

kostanj.si performance score

76

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.1 s

81/100

10%

LCP (Largest Contentful Paint)

Value5.0 s

26/100

25%

SI (Speed Index)

Value3.6 s

87/100

10%

TBT (Total Blocking Time)

Value30 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value4.9 s

78/100

10%

Network Requests Diagram

kostanj.si

645 ms

www.kostanj.si

1230 ms

kostanj.css

132 ms

vstopna.css

242 ms

jquery.min.js

7 ms

Our browser made a total of 19 requests to load all elements on the main page. We found that 84% of them (16 requests) were addressed to the original Kostanj.si, 11% (2 requests) were made to Google-analytics.com and 5% (1 request) were made to Ajax.googleapis.com. The less responsive or slowest element that took the longest time to load (1.2 sec) belongs to the original domain Kostanj.si.

Page Optimization Overview & Recommendations

Page size can be reduced by 16.3 kB (10%)

Content Size

160.5 kB

After Optimization

144.2 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Kostanj.si main page is 160.5 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. 15% of websites need less resources to load. Images take 120.9 kB which makes up the majority of the site volume.

HTML Optimization

-66%

Potential reduce by 5.2 kB

  • Original 7.8 kB
  • After minification 7.4 kB
  • After compression 2.7 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 5.2 kB or 66% of the original size.

Image Optimization

-0%

Potential reduce by 92 B

  • Original 120.9 kB
  • After minification 120.8 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. Kostanj images are well optimized though.

JavaScript Optimization

-30%

Potential reduce by 8.4 kB

  • Original 28.2 kB
  • After minification 24.4 kB
  • After compression 19.8 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 8.4 kB or 30% of the original size.

CSS Optimization

-73%

Potential reduce by 2.6 kB

  • Original 3.6 kB
  • After minification 3.1 kB
  • After compression 976 B

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. Kostanj.si needs all CSS files to be minified and compressed as it can save up to 2.6 kB or 73% of the original size.

Requests Breakdown

Number of requests can be reduced by 3 (19%)

Requests Now

16

After Optimization

13

  • Images
  • JavaScript
  • CSS

The browser has sent 16 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Kostanj. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

kostanj.si

kostanj.si

645 ms

www.kostanj.si

www.kostanj.si

1230 ms

kostanj.css

kostanj.css

132 ms

vstopna.css

vstopna.css

242 ms

jquery.min.js

jquery.min.js

7 ms

jquery.corner.js

jquery.corner.js

261 ms

hint.js

hint.js

255 ms

Kostanj-logo.jpg

Kostanj-logo.jpg

268 ms

menu_back.jpg

menu_back.jpg

129 ms

search_back.jpg

search_back.jpg

129 ms

Naslovnica-nova-slo.jpg

Naslovnica-nova-slo.jpg

471 ms

Naslovnica-modra.png

Naslovnica-modra.png

122 ms

Naslovnica-rdeca.png

Naslovnica-rdeca.png

123 ms

Naslovnica-vijolicna.png

Naslovnica-vijolicna.png

239 ms

Naslovnica-zelena.png

Naslovnica-zelena.png

241 ms

none

none

242 ms

ga.js

ga.js

22 ms

__utm.gif

__utm.gif

15 ms

Siva.jpg

Siva.jpg

129 ms

Accessibility Review

kostanj.si accessibility score

81

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.

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

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

Best Practices

kostanj.si 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

kostanj.si SEO score

77

Search Engine Optimization Advices

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    SL

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Kostanj.si can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it does not match the claimed Slovenian language. Our system also found out that Kostanj.si 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

kostanj.si

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