Report Summary

  • 55

    Performance

    Renders faster than
    73% of other websites

  • 89

    Accessibility

    Visual factors better than
    that of 73% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    57% of websites

  • 96

    SEO

    Google-friendlier than
    91% of websites

kolokol.biz

Odlewy artystyczne – baza firm wspierających branżę

Page Load Speed

4.3 sec in total

First Response

544 ms

Resources Loaded

3.6 sec

Page Rendered

167 ms

kolokol.biz screenshot

About Website

Click here to check amazing Kolokol content. Otherwise, check out these important facts you probably never knew about kolokol.biz

Zapraszamy do odwiedzenia naszej bazy firm, które charytatywnie wspierają branże odlewów artystycznych. Zapraszamy.

Visit kolokol.biz

Key Findings

We analyzed Kolokol.biz page load time and found that the first response time was 544 ms and then it took 3.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Performance Metrics

kolokol.biz performance score

55

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.3 s

18/100

10%

LCP (Largest Contentful Paint)

Value9.4 s

0/100

25%

SI (Speed Index)

Value11.9 s

4/100

10%

TBT (Total Blocking Time)

Value30 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.006

100/100

15%

TTI (Time to Interactive)

Value4.9 s

78/100

10%

Network Requests Diagram

kolokol.biz

544 ms

aggregator.css

136 ms

date.css

203 ms

fivestar.css

226 ms

hearts.css

233 ms

Our browser made a total of 63 requests to load all elements on the main page. We found that 83% of them (52 requests) were addressed to the original Kolokol.biz, 6% (4 requests) were made to Acint.net and 3% (2 requests) were made to Cdn-rtb.sape.ru. The less responsive or slowest element that took the longest time to load (1.3 sec) relates to the external source Dispenser-rtb.sape.ru.

Page Optimization Overview & Recommendations

Page size can be reduced by 211.2 kB (31%)

Content Size

676.4 kB

After Optimization

465.2 kB

In fact, the total size of Kolokol.biz main page is 676.4 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. 20% of websites need less resources to load. Images take 449.5 kB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 31.0 kB

  • Original 37.9 kB
  • After minification 34.0 kB
  • After compression 6.9 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. 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 31.0 kB or 82% of the original size.

Image Optimization

-9%

Potential reduce by 39.6 kB

  • Original 449.5 kB
  • After minification 409.9 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. Kolokol images are well optimized though.

JavaScript Optimization

-70%

Potential reduce by 89.3 kB

  • Original 126.8 kB
  • After minification 98.1 kB
  • After compression 37.5 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 89.3 kB or 70% of the original size.

CSS Optimization

-83%

Potential reduce by 51.3 kB

  • Original 62.2 kB
  • After minification 44.1 kB
  • After compression 10.9 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. Kolokol.biz needs all CSS files to be minified and compressed as it can save up to 51.3 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 30 (49%)

Requests Now

61

After Optimization

31

The browser has sent 61 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Kolokol. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 9 to 1 for JavaScripts and from 13 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

kolokol.biz accessibility score

89

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.

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

ARIA IDs are not unique

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Best Practices

kolokol.biz best practices score

83

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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

kolokol.biz SEO score

96

Search Engine Optimization Advices

Mobile Friendly

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/).

Impact

Issue

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    PL

  • Language Claimed

    RU

  • Encoding

    UTF-8

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