Report Summary

  • 100

    Performance

    Renders faster than
    97% of other websites

  • 61

    Accessibility

    Visual factors better than
    that of 27% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 67

    SEO

    Google-friendlier than
    25% of websites

wdcb.ru

World Data Centers in Russia and Ukraine

Page Load Speed

2.5 sec in total

First Response

627 ms

Resources Loaded

1.8 sec

Page Rendered

104 ms

wdcb.ru screenshot

About Website

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

World Data Center in Russia consists of five discipline centers. Them operates under the overview of the Geophysical Center of the Russian Academy of Sciences (WDC for Solar-Terrestrial Physics, Solid...

Visit wdcb.ru

Key Findings

We analyzed Wdcb.ru page load time and found that the first response time was 627 ms and then it took 1.9 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 30% of websites can load faster.

Performance Metrics

wdcb.ru performance score

100

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value0.8 s

100/100

10%

LCP (Largest Contentful Paint)

Value0.8 s

100/100

25%

SI (Speed Index)

Value1.3 s

100/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value0.8 s

100/100

10%

Network Requests Diagram

wdcb.ru

627 ms

mainpgstyle.css

258 ms

wds_logo.gif

125 ms

header_wdc.gif

249 ms

rus.gif

257 ms

Our browser made a total of 9 requests to load all elements on the main page. We found that all of those requests were addressed to Wdcb.ru and no external sources were called. The less responsive or slowest element that took the longest time to load (1 sec) belongs to the original domain Wdcb.ru.

Page Optimization Overview & Recommendations

Page size can be reduced by 12.7 kB (8%)

Content Size

151.5 kB

After Optimization

138.8 kB

In fact, the total size of Wdcb.ru main page is 151.5 kB. This result falls within a vast category (top 1 000 000) of heavyweight, probably not optimized, and thus slow loading web pages. Only 5% of websites need less resources to load. Images take 138.2 kB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 9.5 kB

  • Original 12.6 kB
  • After minification 9.7 kB
  • After compression 3.1 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 2.9 kB, which is 23% 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 9.5 kB or 76% of the original size.

Image Optimization

-2%

Potential reduce by 2.6 kB

  • Original 138.2 kB
  • After minification 135.5 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. Wdcb images are well optimized though.

CSS Optimization

-68%

Potential reduce by 502 B

  • Original 742 B
  • After minification 413 B
  • After compression 240 B

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. Wdcb.ru needs all CSS files to be minified and compressed as it can save up to 502 B or 68% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

8

After Optimization

8

The browser has sent 8 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Wdcb. According to our analytics all requests are already optimized.

Accessibility Review

wdcb.ru accessibility score

61

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

Best Practices

wdcb.ru best practices score

75

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

SEO Factors

wdcb.ru SEO score

67

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

    EN

  • Language Claimed

    N/A

  • Encoding

    WINDOWS-1251

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Wdcb.ru can be misinterpreted by Google and other search engines. Our service has detected that English 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 Wdcb.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 Wdcb. 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: