Access colan.ru. КОЛАН - официальный сайт. Дистрибьютер ATEN. KVM, IP-KVM, AV, IP-AV и Smart-PDU оборудование

name

value

score

weighting

FCP (First Contentful Paint)

Value2.4 s

71/100

10%

LCP (Largest Contentful Paint)

Value14.2 s

0/100

25%

SI (Speed Index)

Value11.9 s

4/100

10%

TBT (Total Blocking Time)

Value1,160 ms

22/100

30%

CLS (Cumulative Layout Shift)

Value0.309

38/100

15%

TTI (Time to Interactive)

Value23.0 s

1/100

10%

colan.ru

470 ms

colan.ru

561 ms

bootstrap.min.css

132 ms

owl.carousel.min.css

251 ms

fa-svg-with-js.css

364 ms

Our browser made a total of 71 requests to load all elements on the main page. We found that 94% of them (67 requests) were addressed to the original Colan.ru, 3% (2 requests) were made to Mc.yandex.com and 1% (1 request) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (5.5 sec) belongs to the original domain Colan.ru.

Content Size

2.4 MB

After Optimization

1.7 MB

In fact, the total size of Colan.ru main page is 2.4 MB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 50% of websites need less resources to load. Images take 2.2 MB which makes up the majority of the site volume.

HTML Optimization

-89%

Potential reduce by 88.3 kB

Original 99.6 kB
After minification 71.5 kB
After compression 11.3 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 28.1 kB, which is 28% 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 88.3 kB or 89% of the original size.

Image Optimization

-27%

Potential reduce by 596.1 kB

Original 2.2 MB
After minification 1.6 MB

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, Colan needs image optimization as it can save up to 596.1 kB or 27% 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 0 B

Original 85.2 kB
After minification 85.2 kB
After compression 85.2 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

-9%

Potential reduce by 6.6 kB

Original 69.1 kB
After minification 69.1 kB
After compression 62.6 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. Colan.ru has all CSS files already compressed.

Requests Now

After Optimization

The browser has sent 65 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Colan. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 21 to 1 for JavaScripts and from 11 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

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

Buttons do not have an accessible name

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

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

High

ARIA IDs are not unique

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

Missing source maps for large first-party JavaScript

Search Engine Optimization Advices

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

High

Links are not crawlable

Format your HTML in a way that enables crawlers to better understand your app’s content.

High

Image elements do not have [alt] attributes

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

RU
Language Claimed

RU
Encoding

UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Colan.ru 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 Colan.ru 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

colan.ru

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

КОЛАН - официальный сайт. Дистрибьютер ATEN. KVM, IP-KVM, AV, IP-AV и Smart-PDU оборудование

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

colan.ru

colan.ru

bootstrap.min.css

owl.carousel.min.css

fa-svg-with-js.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

colan.ru

colan.ru

bootstrap.min.css

owl.carousel.min.css

fa-svg-with-js.css

fotorama.css

datepicker.min.css

jquery.mCustomScrollbar.css

bootstrap-select.min.css

flatpickr.min.css

select2.min.css

style.css

mobile.css

logo.png

search.png

slider_1.png

1.png

61445d3a9d981.png

61446424f0517.png

614464be9ff9c.png

7.png

d_5952.jpg

popular.png

js

jquery-3.3.1.min.js

yii.js

popper.min.js

bootstrap.min.js

masonry.pkgd.min.js

fontawesome.min.js

fontawesome-all.js

fotorama.js

jquery.mCustomScrollbar.js

jquery.maskedinput.min.js

owl.carousel.min.js

flatpickr.min.js

flatpickr.ru.js

select2.full.min.js

clipboard.min.js

jquery-ui.min.js

datepicker.min.js

script.js

mobile.js