Report Summary

  • 81

    Performance

    Renders faster than
    87% of other websites

  • 51

    Accessibility

    Visual factors better than
    that of 20% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 69

    SEO

    Google-friendlier than
    28% of websites

astronomy.ru

Астрофорум – астрономический портал

Page Load Speed

3.4 sec in total

First Response

452 ms

Resources Loaded

2.5 sec

Page Rendered

498 ms

astronomy.ru screenshot

About Website

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

Астрофорум – астрономический портал

Visit astronomy.ru

Key Findings

We analyzed Astronomy.ru page load time and found that the first response time was 452 ms and then it took 3 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

astronomy.ru performance score

81

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.9 s

88/100

10%

LCP (Largest Contentful Paint)

Value2.2 s

95/100

25%

SI (Speed Index)

Value5.4 s

56/100

10%

TBT (Total Blocking Time)

Value210 ms

89/100

30%

CLS (Cumulative Layout Shift)

Value0.274

44/100

15%

TTI (Time to Interactive)

Value3.5 s

92/100

10%

Network Requests Diagram

astronomy.ru

452 ms

www.astronomy.ru

489 ms

index.css

154 ms

script.js

554 ms

theme.js

285 ms

Our browser made a total of 39 requests to load all elements on the main page. We found that 92% of them (36 requests) were addressed to the original Astronomy.ru, 3% (1 request) were made to Spaceobs.org and 3% (1 request) were made to Bs.yandex.ru. The less responsive or slowest element that took the longest time to load (987 ms) belongs to the original domain Astronomy.ru.

Page Optimization Overview & Recommendations

Page size can be reduced by 235.5 kB (30%)

Content Size

789.1 kB

After Optimization

553.6 kB

In fact, the total size of Astronomy.ru main page is 789.1 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. 15% of websites need less resources to load. Images take 590.6 kB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 50.6 kB

  • Original 62.3 kB
  • After minification 59.5 kB
  • After compression 11.7 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. 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 50.6 kB or 81% of the original size.

Image Optimization

-13%

Potential reduce by 74.5 kB

  • Original 590.6 kB
  • After minification 516.2 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. Obviously, Astronomy needs image optimization as it can save up to 74.5 kB or 13% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-78%

Potential reduce by 53.7 kB

  • Original 68.4 kB
  • After minification 51.7 kB
  • After compression 14.7 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 53.7 kB or 78% of the original size.

CSS Optimization

-84%

Potential reduce by 56.7 kB

  • Original 67.8 kB
  • After minification 46.6 kB
  • After compression 11.1 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. Astronomy.ru needs all CSS files to be minified and compressed as it can save up to 56.7 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 11 (31%)

Requests Now

35

After Optimization

24

The browser has sent 35 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Astronomy. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

astronomy.ru accessibility score

51

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

Form elements do not have associated labels

High

Links do not have a discernible name

Best Practices

astronomy.ru best practices score

67

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

High

Browser errors were logged to the console

SEO Factors

astronomy.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 Astronomy.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 Astronomy.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 data is detected on the main page of Astronomy. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: