Report Summary

  • 30

    Performance

    Renders faster than
    50% of other websites

  • 73

    Accessibility

    Visual factors better than
    that of 39% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 69

    SEO

    Google-friendlier than
    28% of websites

astro-cabinet.ru

«Кабинетъ» — материалы по истории астрономии

Page Load Speed

4 sec in total

First Response

845 ms

Resources Loaded

2.9 sec

Page Rendered

241 ms

astro-cabinet.ru screenshot

About Website

Visit astro-cabinet.ru now to see the best up-to-date Astro Cabinet content for Russia and also check out these interesting facts you probably never knew about astro-cabinet.ru

«Кабинетъ» — материалы по истории астрономии

Visit astro-cabinet.ru

Key Findings

We analyzed Astro-cabinet.ru page load time and found that the first response time was 845 ms and then it took 3.1 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

astro-cabinet.ru performance score

30

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.5 s

68/100

10%

LCP (Largest Contentful Paint)

Value6.6 s

8/100

25%

SI (Speed Index)

Value7.8 s

23/100

10%

TBT (Total Blocking Time)

Value700 ms

42/100

30%

CLS (Cumulative Layout Shift)

Value0.33

34/100

15%

TTI (Time to Interactive)

Value13.5 s

11/100

10%

Network Requests Diagram

astro-cabinet.ru

845 ms

css.css

509 ms

jquery.min.js

1069 ms

ddaccordion.js

684 ms

jquery.lightbox-0.5.js

876 ms

Our browser made a total of 42 requests to load all elements on the main page. We found that 48% of them (20 requests) were addressed to the original Astro-cabinet.ru, 10% (4 requests) were made to Mc.yandex.ru and 7% (3 requests) were made to W.uptolike.com. The less responsive or slowest element that took the longest time to load (1.1 sec) belongs to the original domain Astro-cabinet.ru.

Page Optimization Overview & Recommendations

Page size can be reduced by 52.6 kB (25%)

Content Size

213.6 kB

After Optimization

161.0 kB

In fact, the total size of Astro-cabinet.ru main page is 213.6 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. 20% of websites need less resources to load. Images take 118.4 kB which makes up the majority of the site volume.

HTML Optimization

-67%

Potential reduce by 9.2 kB

  • Original 13.8 kB
  • After minification 13.7 kB
  • After compression 4.6 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. HTML code on this page is well minified. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 9.2 kB or 67% of the original size.

Image Optimization

-0%

Potential reduce by 217 B

  • Original 118.4 kB
  • After minification 118.2 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. Astro Cabinet images are well optimized though.

JavaScript Optimization

-53%

Potential reduce by 43.2 kB

  • Original 81.4 kB
  • After minification 81.3 kB
  • After compression 38.3 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 43.2 kB or 53% of the original size.

Requests Breakdown

Number of requests can be reduced by 19 (56%)

Requests Now

34

After Optimization

15

The browser has sent 34 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Astro Cabinet. 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

astro-cabinet.ru accessibility score

73

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

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

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

astro-cabinet.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

astro-cabinet.ru SEO score

69

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

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 Astro-cabinet.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 Astro-cabinet.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

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