Report Summary

  • 100

    Performance

    Renders faster than
    97% of other websites

  • 59

    Accessibility

    Visual factors better than
    that of 26% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 64

    SEO

    Google-friendlier than
    24% of websites

kolko.bg

We Are Not Open Yet!

Page Load Speed

2.9 sec in total

First Response

443 ms

Resources Loaded

2.3 sec

Page Rendered

180 ms

About Website

Welcome to kolko.bg homepage info - get ready to check Kolko best content for Bulgaria right away, or after learning these important things about kolko.bg

В Kolko.bg ще намерите продуктите на българските магазини събрани на едно място. Питате се "Какво да избера?" или пък "Къде е най-евтино?" Само топ оферти в Кolko.bg, сравни цените и спести.

Visit kolko.bg

Key Findings

We analyzed Kolko.bg page load time and found that the first response time was 443 ms and then it took 2.5 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

kolko.bg performance score

100

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.1 s

99/100

10%

LCP (Largest Contentful Paint)

Value1.3 s

100/100

25%

SI (Speed Index)

Value1.4 s

100/100

10%

TBT (Total Blocking Time)

Value50 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value1.2 s

100/100

10%

Network Requests Diagram

kolko.bg

443 ms

www.kolko.bg

592 ms

screen.css

237 ms

combine.php

240 ms

combine.php

248 ms

Our browser made a total of 84 requests to load all elements on the main page. We found that 11% of them (9 requests) were addressed to the original Kolko.bg, 25% (21 requests) were made to Static.kolko.bg and 15% (13 requests) were made to Scontent-iad3-1.xx.fbcdn.net. The less responsive or slowest element that took the longest time to load (592 ms) belongs to the original domain Kolko.bg.

Page Optimization Overview & Recommendations

Page size can be reduced by 94.7 kB (43%)

Content Size

219.5 kB

After Optimization

124.8 kB

In fact, the total size of Kolko.bg main page is 219.5 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. 55% of websites need less resources to load. HTML takes 99.3 kB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 77.5 kB

  • Original 99.3 kB
  • After minification 91.8 kB
  • After compression 21.8 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. 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 77.5 kB or 78% of the original size.

Image Optimization

-9%

Potential reduce by 7.0 kB

  • Original 81.0 kB
  • After minification 74.0 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. Kolko images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 34 B

  • Original 25.9 kB
  • After minification 25.9 kB
  • After compression 25.9 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. This website has mostly compressed JavaScripts.

CSS Optimization

-76%

Potential reduce by 10.2 kB

  • Original 13.3 kB
  • After minification 11.3 kB
  • After compression 3.1 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. Kolko.bg needs all CSS files to be minified and compressed as it can save up to 10.2 kB or 76% of the original size.

Requests Breakdown

Number of requests can be reduced by 50 (62%)

Requests Now

81

After Optimization

31

The browser has sent 81 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Kolko. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 24 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

kolko.bg accessibility score

59

Accessibility Issues

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

Form elements do not have associated labels

Best Practices

kolko.bg best practices score

75

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

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

kolko.bg SEO score

64

Search Engine Optimization Advices

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    BG

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Kolko.bg 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 Bulgarian language. Our system also found out that Kolko.bg 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

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