Tools & Wizards About Us
darwinmuseum.ru screenshot

Report Summary

  • 25

    Performance

    Renders faster than
    44% of other websites

  • 82

    Accessibility

    Visual factors better than
    that of 54% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 76

    SEO

    Google-friendlier than
    35% of websites

darwinmuseum.ru

Государственный Дарвиновский музей

Page Load Speed

12.1 sec in total

First Response

1.1 sec

Resources Loaded

9.6 sec

Page Rendered

1.4 sec

darwinmuseum.ru screenshot

About Website

Click here to check amazing Darwinmuseum content for Russia. Otherwise, check out these important facts you probably never knew about darwinmuseum.ru

Один из лучших музеев Москвы, где вы можете провести время со своей семьей в тишине и прохладе залов основной экспозиции или на многочисленных интересных и познавательных выставках. Интерактивные эксп...

Visit darwinmuseum.ru

Key Findings

We analyzed Darwinmuseum.ru page load time and found that the first response time was 1.1 sec and then it took 10.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.

Performance Metrics

darwinmuseum.ru performance score

25

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.8 s

11/100

10%

LCP (Largest Contentful Paint)

Value4.8 s

30/100

25%

SI (Speed Index)

Value9.2 s

13/100

10%

TBT (Total Blocking Time)

Value1,690 ms

11/100

30%

CLS (Cumulative Layout Shift)

Value0.139

79/100

15%

TTI (Time to Interactive)

Value20.2 s

2/100

10%

Network Requests Diagram

darwinmuseum.ru

1143 ms

main1.css

948 ms

jquery.min.js

75 ms

openapi.js

394 ms

share.js

12 ms

Our browser made a total of 162 requests to load all elements on the main page. We found that 51% of them (83 requests) were addressed to the original Darwinmuseum.ru, 7% (11 requests) were made to Vk.com and 6% (10 requests) were made to Apis.google.com. The less responsive or slowest element that took the longest time to load (4 sec) belongs to the original domain Darwinmuseum.ru.

Page Optimization Overview & Recommendations

Page size can be reduced by 482.3 kB (14%)

Content Size

3.4 MB

After Optimization

2.9 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Darwinmuseum.ru main page is 3.4 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. 70% of websites need less resources to load. Images take 2.8 MB which makes up the majority of the site volume.

HTML Optimization

-86%

Potential reduce by 88.8 kB

  • Original 103.5 kB
  • After minification 74.0 kB
  • After compression 14.7 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 29.5 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 88.8 kB or 86% of the original size.

Image Optimization

-2%

Potential reduce by 68.5 kB

  • Original 2.8 MB
  • After minification 2.8 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. Darwinmuseum images are well optimized though.

JavaScript Optimization

-69%

Potential reduce by 254.8 kB

  • Original 366.7 kB
  • After minification 308.4 kB
  • After compression 111.9 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 254.8 kB or 69% of the original size.

CSS Optimization

-84%

Potential reduce by 70.1 kB

  • Original 83.6 kB
  • After minification 71.6 kB
  • After compression 13.6 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. Darwinmuseum.ru needs all CSS files to be minified and compressed as it can save up to 70.1 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 53 (34%)

Requests Now

155

After Optimization

102

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 155 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Darwinmuseum. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 31 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

darwinmuseum.ru

darwinmuseum.ru

1143 ms

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948 ms

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394 ms

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153 ms

watch.js

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596 ms

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61 ms

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84 ms

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Accessibility Review

darwinmuseum.ru accessibility score

82

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.

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

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Best Practices

darwinmuseum.ru best practices score

67

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

Displays images with incorrect aspect ratio

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

darwinmuseum.ru SEO score

76

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

Links do not have descriptive text

High

Image elements do not have [alt] attributes

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

    N/A

  • Encoding

    WINDOWS-1251

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Darwinmuseum.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 Darwinmuseum.ru main page’s claimed encoding is windows-1251. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

darwinmuseum.ru

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