Tools & Wizards About Us
rosco.su screenshot

Report Summary

  • 75

    Performance

    Renders faster than
    83% of other websites

  • 90

    Accessibility

    Visual factors better than
    that of 74% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 91

    SEO

    Google-friendlier than
    70% of websites

rosco.su

«РосКо» — аудиторские, аккредитационные, бухгалтерские, юридические, регистрационные и кадровые услуги в Москве

Page Load Speed

4 sec in total

First Response

461 ms

Resources Loaded

3 sec

Page Rendered

573 ms

rosco.su screenshot

About Website

Visit rosco.su now to see the best up-to-date Rosco content for Russia and also check out these interesting facts you probably never knew about rosco.su

Компания «РосКо» предлагает свои услуги на выгодных условиях. Для сотрудничества позвоните по указанному на сайте номеру телефона.

Visit rosco.su

Key Findings

We analyzed Rosco.su page load time and found that the first response time was 461 ms and then it took 3.5 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

rosco.su performance score

75

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.4 s

71/100

10%

LCP (Largest Contentful Paint)

Value4.3 s

41/100

25%

SI (Speed Index)

Value4.3 s

76/100

10%

TBT (Total Blocking Time)

Value210 ms

89/100

30%

CLS (Cumulative Layout Shift)

Value0.002

100/100

15%

TTI (Time to Interactive)

Value4.1 s

87/100

10%

Network Requests Diagram

rosco.su

461 ms

rosco.su

740 ms

ui.design-tokens.min.css

127 ms

kernel_ui_notification_v1.css

253 ms

page_28f819226e49e4a81e25e058f09e9109_v1.css

378 ms

Our browser made a total of 54 requests to load all elements on the main page. We found that 98% of them (53 requests) were addressed to the original Rosco.su, 2% (1 request) were made to Vk.com. The less responsive or slowest element that took the longest time to load (931 ms) belongs to the original domain Rosco.su.

Page Optimization Overview & Recommendations

Page size can be reduced by 201.9 kB (23%)

Content Size

863.0 kB

After Optimization

661.1 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Rosco.su main page is 863.0 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. 45% of websites need less resources to load. Javascripts take 317.9 kB which makes up the majority of the site volume.

HTML Optimization

-85%

Potential reduce by 155.5 kB

  • Original 183.0 kB
  • After minification 158.1 kB
  • After compression 27.5 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 24.9 kB, which is 14% 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 155.5 kB or 85% of the original size.

Image Optimization

-0%

Potential reduce by 34 B

  • Original 278.1 kB
  • After minification 278.1 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. Rosco images are well optimized though.

JavaScript Optimization

-12%

Potential reduce by 38.7 kB

  • Original 317.9 kB
  • After minification 317.9 kB
  • After compression 279.2 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 38.7 kB or 12% of the original size.

CSS Optimization

-9%

Potential reduce by 7.7 kB

  • Original 84.0 kB
  • After minification 84.0 kB
  • After compression 76.3 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. Rosco.su has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 29 (56%)

Requests Now

52

After Optimization

23

  • Images
  • JavaScript
  • CSS

The browser has sent 52 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Rosco. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 11 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

rosco.su

rosco.su

461 ms

rosco.su

rosco.su

740 ms

ui.design-tokens.min.css

ui.design-tokens.min.css

127 ms

kernel_ui_notification_v1.css

kernel_ui_notification_v1.css

253 ms

page_28f819226e49e4a81e25e058f09e9109_v1.css

page_28f819226e49e4a81e25e058f09e9109_v1.css

378 ms

template_eb473024bfa883fb1ae485a34ab68fb6_v1.css

template_eb473024bfa883fb1ae485a34ab68fb6_v1.css

511 ms

jquery-1.12.4.min.js

jquery-1.12.4.min.js

589 ms

core.min.js

core.min.js

645 ms

delight.webp.js

delight.webp.js

399 ms

vue.bundle.min.js

vue.bundle.min.js

666 ms

dexie3.bundle.min.js

dexie3.bundle.min.js

627 ms

md5.bundle.min.js

md5.bundle.min.js

597 ms

vuex.bundle.min.js

vuex.bundle.min.js

628 ms

kernel_ui_notification_v1.js

kernel_ui_notification_v1.js

642 ms

template_85284fdfde20fc776ee72a244267611c_v1.js

template_85284fdfde20fc776ee72a244267611c_v1.js

928 ms

page_fa0044b3baeffd1ed26f41c6d44db10d_v1.js

page_fa0044b3baeffd1ed26f41c6d44db10d_v1.js

752 ms

sprite.svg

sprite.svg

752 ms

-.jpg.webp

-.jpg.webp

770 ms

-.jpg.webp

-.jpg.webp

772 ms

photo-2024-01-08-17-13-45.jpg.webp

photo-2024-01-08-17-13-45.jpg.webp

795 ms

photo-2023-12-26-15-43-04.jpg.webp

photo-2023-12-26-15-43-04.jpg.webp

876 ms

photo-2024-01-08-17-13-32.jpg.webp

photo-2024-01-08-17-13-32.jpg.webp

876 ms

photo-2023-12-26-15-42-56.jpg.webp

photo-2023-12-26-15-42-56.jpg.webp

899 ms

photo-2023-12-26-15-43-00.jpg.webp

photo-2023-12-26-15-43-00.jpg.webp

901 ms

image-1-px.png.webp

image-1-px.png.webp

931 ms

logo.jpg

logo.jpg

448 ms

close2.svg

close2.svg

450 ms

search.svg

search.svg

477 ms

lev2.svg

lev2.svg

479 ms

logo.svg

logo.svg

506 ms

services.svg

services.svg

507 ms

search.svg

search.svg

573 ms

phone.svg

phone.svg

575 ms

time.svg

time.svg

606 ms

mail.svg

mail.svg

608 ms

play.svg

play.svg

638 ms

serv1.webp

serv1.webp

644 ms

s2.svg

s2.svg

698 ms

serv3.webp

serv3.webp

703 ms

s1.svg

s1.svg

735 ms

serv2.webp

serv2.webp

741 ms

s3.svg

s3.svg

770 ms

down-chevron.svg

down-chevron.svg

747 ms

footerlogo.jpg

footerlogo.jpg

785 ms

toTop.svg

toTop.svg

789 ms

-.jpg

-.jpg

618 ms

-.jpg

-.jpg

622 ms

photo-2024-01-08-17-13-45.jpg

photo-2024-01-08-17-13-45.jpg

524 ms

photo-2023-12-26-15-43-04.jpg

photo-2023-12-26-15-43-04.jpg

530 ms

photo-2024-01-08-17-13-32.jpg

photo-2024-01-08-17-13-32.jpg

579 ms

photo-2023-12-26-15-42-56.jpg

photo-2023-12-26-15-42-56.jpg

580 ms

photo-2023-12-26-15-43-00.jpg

photo-2023-12-26-15-43-00.jpg

657 ms

image-1-px.png

image-1-px.png

663 ms

openapi.318ba3d5a50b8d6990cb0284cb0e0963.js

openapi.318ba3d5a50b8d6990cb0284cb0e0963.js

267 ms

Accessibility Review

rosco.su accessibility score

90

Accessibility Issues

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

Buttons do not have an accessible name

High

Links do not have a discernible name

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.

Best Practices

rosco.su best practices score

83

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

rosco.su SEO score

91

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

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 Rosco.su 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 Rosco.su 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

rosco.su

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