Report Summary

  • 49

    Performance

    Renders faster than
    67% of other websites

  • 67

    Accessibility

    Visual factors better than
    that of 32% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 90

    SEO

    Google-friendlier than
    68% of websites

cosmos-moscow.ru

Гостиница Космос (Cosmos Hotel 3*), Москва. Бронирование номеров, услуги и цены Гостиницы Космос.

Page Load Speed

3.9 sec in total

First Response

1.1 sec

Resources Loaded

2.2 sec

Page Rendered

564 ms

cosmos-moscow.ru screenshot

About Website

Welcome to cosmos-moscow.ru homepage info - get ready to check Cosmos Moscow best content right away, or after learning these important things about cosmos-moscow.ru

Гостиница Космос, Москва. Срочное бронирование номеров в гостинице Космос он-лайн. Адрес гостиницы Космос: г.Москва, Проспект Мира,150

Visit cosmos-moscow.ru

Key Findings

We analyzed Cosmos-moscow.ru page load time and found that the first response time was 1.1 sec and then it took 2.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

cosmos-moscow.ru performance score

49

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.0 s

48/100

10%

LCP (Largest Contentful Paint)

Value3.0 s

77/100

25%

SI (Speed Index)

Value6.2 s

42/100

10%

TBT (Total Blocking Time)

Value1,340 ms

17/100

30%

CLS (Cumulative Layout Shift)

Value0.058

98/100

15%

TTI (Time to Interactive)

Value14.5 s

8/100

10%

Network Requests Diagram

cosmos-moscow.ru

1112 ms

gtm.js

110 ms

jquery-2.2.0.min.js

141 ms

bootstrap.buttons.css

221 ms

bootstrap.min.css

104 ms

Our browser made a total of 76 requests to load all elements on the main page. We found that 7% of them (5 requests) were addressed to the original Cosmos-moscow.ru, 38% (29 requests) were made to Static.mscgroup.ru and 33% (25 requests) were made to Mscgroup.ru. The less responsive or slowest element that took the longest time to load (1.1 sec) belongs to the original domain Cosmos-moscow.ru.

Page Optimization Overview & Recommendations

Page size can be reduced by 106.4 kB (62%)

Content Size

170.9 kB

After Optimization

64.5 kB

In fact, the total size of Cosmos-moscow.ru main page is 170.9 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. HTML takes 123.4 kB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 101.9 kB

  • Original 123.4 kB
  • After minification 103.4 kB
  • After compression 21.5 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 20.0 kB, which is 16% 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 101.9 kB or 83% of the original size.

Image Optimization

-43%

Potential reduce by 341 B

  • Original 789 B
  • After minification 448 B

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, Cosmos Moscow needs image optimization as it can save up to 341 B or 43% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-9%

Potential reduce by 4.1 kB

  • Original 46.7 kB
  • After minification 46.7 kB
  • After compression 42.6 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.

Requests Breakdown

Number of requests can be reduced by 10 (53%)

Requests Now

19

After Optimization

9

The browser has sent 19 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Cosmos Moscow. 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 as a result speed up the page load time.

Accessibility Review

cosmos-moscow.ru accessibility score

67

Accessibility Issues

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-*] attributes do not match their roles

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

<frame> or <iframe> elements do not have a title

High

Image elements do not have [alt] attributes

High

Form elements do not have associated labels

High

Links do not have a discernible name

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

Best Practices

cosmos-moscow.ru best practices score

58

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

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

cosmos-moscow.ru SEO score

90

Search Engine Optimization Advices

Content Best Practices

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

Impact

Issue

High

Image elements do not have [alt] attributes

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

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Cosmos-moscow.ru can be misinterpreted by Google and other search engines. Our service has detected that Russian is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Cosmos-moscow.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

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