Tools & Wizards About Us
kotlov.by screenshot

Report Summary

  • 22

    Performance

    Renders faster than
    40% of other websites

  • 92

    Accessibility

    Visual factors better than
    that of 78% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 92

    SEO

    Google-friendlier than
    74% of websites

kotlov.by

Системы отопления частного дома в Минске. Купить оборудование для отопления в интернет-магазине котлов отопления Kotlov.by

Page Load Speed

3.3 sec in total

First Response

477 ms

Resources Loaded

2.6 sec

Page Rendered

233 ms

kotlov.by screenshot

About Website

Welcome to kotlov.by homepage info - get ready to check Kotlov best content for Belarus right away, or after learning these important things about kotlov.by

Интернет-магазин Kotlov.by предлагает широкий ассортимент отопительного оборудования с доставкой в Минске. У нас Вы найдете системы отопления для частного дома и коттеджа, большой выбор отопительных к...

Visit kotlov.by

Key Findings

We analyzed Kotlov.by page load time and found that the first response time was 477 ms and then it took 2.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.

Performance Metrics

kotlov.by performance score

22

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.6 s

64/100

10%

LCP (Largest Contentful Paint)

Value15.4 s

0/100

25%

SI (Speed Index)

Value6.5 s

39/100

10%

TBT (Total Blocking Time)

Value1,030 ms

26/100

30%

CLS (Cumulative Layout Shift)

Value0.487

17/100

15%

TTI (Time to Interactive)

Value12.2 s

15/100

10%

Network Requests Diagram

kotlov.by

477 ms

kotlov.by

533 ms

gtm.js

58 ms

styles.css

393 ms

general.js

510 ms

Our browser made a total of 30 requests to load all elements on the main page. We found that 90% of them (27 requests) were addressed to the original Kotlov.by, 10% (3 requests) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (960 ms) belongs to the original domain Kotlov.by.

Page Optimization Overview & Recommendations

Page size can be reduced by 152.8 kB (23%)

Content Size

665.7 kB

After Optimization

512.9 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Kotlov.by main page is 665.7 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. 40% of websites need less resources to load. Images take 505.3 kB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 21.7 kB

  • Original 28.4 kB
  • After minification 25.2 kB
  • After compression 6.7 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. This page needs HTML code to be minified as it can gain 3.2 kB, which is 11% 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 21.7 kB or 76% of the original size.

Image Optimization

-14%

Potential reduce by 73.2 kB

  • Original 505.3 kB
  • After minification 432.1 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. Obviously, Kotlov needs image optimization as it can save up to 73.2 kB or 14% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-0%

Potential reduce by 12 B

  • Original 34.6 kB
  • After minification 34.6 kB
  • After compression 34.6 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

-60%

Potential reduce by 57.9 kB

  • Original 97.4 kB
  • After minification 97.4 kB
  • After compression 39.4 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. Kotlov.by needs all CSS files to be minified and compressed as it can save up to 57.9 kB or 60% of the original size.

Requests Breakdown

Number of requests can be reduced by 3 (15%)

Requests Now

20

After Optimization

17

  • Images
  • JavaScript
  • CSS

The browser has sent 20 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Kotlov. 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

kotlov.by

kotlov.by

477 ms

kotlov.by

kotlov.by

533 ms

gtm.js

gtm.js

58 ms

styles.css

styles.css

393 ms

general.js

general.js

510 ms

awesome.css

awesome.css

514 ms

js

js

51 ms

gtm.js

gtm.js

63 ms

logo.png

logo.png

129 ms

geo-icon.png

geo-icon.png

129 ms

slider_big_arr.png

slider_big_arr.png

127 ms

slider_arr_big_right.png

slider_arr_big_right.png

253 ms

slider-arrow.png

slider-arrow.png

255 ms

slider-arrow_right.png

slider-arrow_right.png

257 ms

vhod-s-mladencami-zapreshhen-1-e1545297771493.png

vhod-s-mladencami-zapreshhen-1-e1545297771493.png

502 ms

montagnik.png

montagnik.png

383 ms

photo7.jpg

photo7.jpg

641 ms

photo5.jpg

photo5.jpg

655 ms

photo6.jpg

photo6.jpg

793 ms

logo2.png

logo2.png

403 ms

logo_tech.jpg

logo_tech.jpg

514 ms

callbackred.png

callbackred.png

491 ms

SFUIDisplay-Light.woff

SFUIDisplay-Light.woff

669 ms

SFUIDisplay-Regular.woff

SFUIDisplay-Regular.woff

559 ms

SFUIDisplay-Medium.woff

SFUIDisplay-Medium.woff

724 ms

SFUIDisplay-Bold.woff

SFUIDisplay-Bold.woff

685 ms

SFUIDisplay-Heavy.woff

SFUIDisplay-Heavy.woff

690 ms

fa-light-300.woff

fa-light-300.woff

960 ms

fa-regular-400.woff

fa-regular-400.woff

920 ms

fa-solid-900.woff

fa-solid-900.woff

942 ms

Accessibility Review

kotlov.by accessibility score

92

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.

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

kotlov.by best practices score

75

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

High

Browser errors were logged to the console

SEO Factors

kotlov.by SEO score

92

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

High

Links are not crawlable

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

Language and Encoding

  • Language Detected

    RU

  • Language Claimed

    RU

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Kotlov.by can be misinterpreted by Google and other search engines. Our service has detected that Russian is used on the page, and it matches the claimed language. Our system also found out that Kotlov.by 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

kotlov.by

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