Tools & Wizards About Us
levashov.org screenshot

Report Summary

  • 42

    Performance

    Renders faster than
    61% of other websites

  • 42

    Accessibility

    Visual factors better than
    that of 19% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 62

    SEO

    Google-friendlier than
    23% of websites

levashov.org

Николай Левашов. Официальный сайт академика Николая Викторовича Левашова

Page Load Speed

6.4 sec in total

First Response

362 ms

Resources Loaded

5.6 sec

Page Rendered

496 ms

levashov.org screenshot

About Website

Welcome to levashov.org homepage info - get ready to check Levashov best content for Russia right away, or after learning these important things about levashov.org

Это не чудеса и не магия. Источник этого Знания – высочайшее развитие сознания, эволюция разума, позволяющие бесконечно продолжать процесс познания, овладеть законами развития материи, исцелять экосис...

Visit levashov.org

Key Findings

We analyzed Levashov.org page load time and found that the first response time was 362 ms and then it took 6.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.

Performance Metrics

levashov.org performance score

42

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.0 s

84/100

10%

LCP (Largest Contentful Paint)

Value3.2 s

73/100

25%

SI (Speed Index)

Value8.3 s

19/100

10%

TBT (Total Blocking Time)

Value5,210 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.113

86/100

15%

TTI (Time to Interactive)

Value22.3 s

1/100

10%

Network Requests Diagram

levashov.org

362 ms

nikolay-levashov.ru

537 ms

nic-styles.css

284 ms

smoothDivScroll.css

291 ms

jquery-1.11.1.min.js

447 ms

Our browser made a total of 108 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Levashov.org, 51% (55 requests) were made to Nikolay-levashov.ru and 11% (12 requests) were made to Vk.com. The less responsive or slowest element that took the longest time to load (2.1 sec) relates to the external source I504.mycdn.me.

Page Optimization Overview & Recommendations

Page size can be reduced by 340.4 kB (40%)

Content Size

852.2 kB

After Optimization

511.8 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Levashov.org main page is 852.2 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. 55% of websites need less resources to load. Javascripts take 371.0 kB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 66.1 kB

  • Original 82.5 kB
  • After minification 82.0 kB
  • After compression 16.5 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. 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 66.1 kB or 80% of the original size.

Image Optimization

-1%

Potential reduce by 4.0 kB

  • Original 354.7 kB
  • After minification 350.8 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. Levashov images are well optimized though.

JavaScript Optimization

-64%

Potential reduce by 237.8 kB

  • Original 371.0 kB
  • After minification 312.7 kB
  • After compression 133.3 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 237.8 kB or 64% of the original size.

CSS Optimization

-74%

Potential reduce by 32.7 kB

  • Original 44.0 kB
  • After minification 36.9 kB
  • After compression 11.3 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. Levashov.org needs all CSS files to be minified and compressed as it can save up to 32.7 kB or 74% of the original size.

Requests Breakdown

Number of requests can be reduced by 30 (30%)

Requests Now

99

After Optimization

69

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 99 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Levashov. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 16 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

levashov.org

levashov.org

362 ms

nikolay-levashov.ru

nikolay-levashov.ru

537 ms

nic-styles.css

nic-styles.css

284 ms

smoothDivScroll.css

smoothDivScroll.css

291 ms

jquery-1.11.1.min.js

jquery-1.11.1.min.js

447 ms

share42.js

share42.js

291 ms

jquery-ui-1.10.3.custom.min.js

jquery-ui-1.10.3.custom.min.js

289 ms

jquery.mousewheel.min.js

jquery.mousewheel.min.js

289 ms

jquery.kinetic.min.js

jquery.kinetic.min.js

466 ms

jquery.smoothdivscroll-1.3-min.js

jquery.smoothdivscroll-1.3-min.js

467 ms

share.js

share.js

189 ms

openapi.js

openapi.js

1445 ms

333-1.gif

333-1.gif

423 ms

LevashovVideo-2.gif

LevashovVideo-2.gif

263 ms

Logo-4.jpg

Logo-4.jpg

173 ms

France.gif

France.gif

99 ms

Spain.gif

Spain.gif

109 ms

Germany.gif

Germany.gif

110 ms

Gr-Britain.gif

Gr-Britain.gif

97 ms

NL-01.jpg

NL-01.jpg

173 ms

04.jpg

04.jpg

180 ms

03.jpg

03.jpg

179 ms

Tartaria.jpg

Tartaria.jpg

422 ms

05.jpg

05.jpg

194 ms

01.jpg

01.jpg

274 ms

02.jpg

02.jpg

273 ms

07.jpg

07.jpg

279 ms

08.jpg

08.jpg

302 ms

confer-1.jpg

confer-1.jpg

441 ms

confer-2.jpg

confer-2.jpg

483 ms

confer-3.jpg

confer-3.jpg

481 ms

rss.png

rss.png

392 ms

KP-01.jpg

KP-01.jpg

417 ms

Sov-mir-1.gif

Sov-mir-1.gif

484 ms

Sov-mir-2.gif

Sov-mir-2.gif

508 ms

Sov-mir-4.gif

Sov-mir-4.gif

517 ms

RuAN-01.jpg

RuAN-01.jpg

561 ms

Vzv-mir-1.gif

Vzv-mir-1.gif

636 ms

Vzv-mir-2.gif

Vzv-mir-2.gif

640 ms

Vzv-mir-3.gif

Vzv-mir-3.gif

646 ms

nl_books.gif

nl_books.gif

664 ms

LM-2.gif

LM-2.gif

667 ms

Gen-02.gif

Gen-02.gif

689 ms

M-4.gif

M-4.gif

740 ms

svetlana_2.gif

svetlana_2.gif

744 ms

Ras-2.gif

Ras-2.gif

747 ms

R-Net-1.gif

R-Net-1.gif

757 ms

Net-02.jpg

Net-02.jpg

762 ms

RuAN-LJ.gif

RuAN-LJ.gif

785 ms

analytics.js

analytics.js

46 ms

watch.js

watch.js

13 ms

confirms.html

confirms.html

849 ms

RuAN-LI.gif

RuAN-LI.gif

753 ms

Stop-02.gif

Stop-02.gif

760 ms

Molv-02.gif

Molv-02.gif

768 ms

Izv-2.jpg

Izv-2.jpg

774 ms

LevashovVideo-2.gif

LevashovVideo-2.gif

870 ms

watch.js

watch.js

10 ms

upload.gif

upload.gif

205 ms

widget_community.php

widget_community.php

307 ms

all.js

all.js

78 ms

news-text.html

news-text.html

271 ms

b-share-icon.png

b-share-icon.png

80 ms

watch.js

watch.js

4 ms

big_transparent.gif

big_transparent.gif

188 ms

cursor_arrow_left.png

cursor_arrow_left.png

188 ms

cursor_arrow_left.cur

cursor_arrow_left.cur

188 ms

cursor_arrow_right.png

cursor_arrow_right.png

187 ms

cursor_arrow_right.cur

cursor_arrow_right.cur

187 ms

b-share-popup_down__tail.png

b-share-popup_down__tail.png

70 ms

watch.js

watch.js

102 ms

255 ms

xd_arbiter.php

xd_arbiter.php

119 ms

xd_arbiter.php

xd_arbiter.php

280 ms

loader_nav19239_3.js

loader_nav19239_3.js

161 ms

lite.css

lite.css

162 ms

lite.js

lite.js

576 ms

lang3_0.js

lang3_0.js

343 ms

widget_community.css

widget_community.css

331 ms

xdm.js

xdm.js

327 ms

al_community.js

al_community.js

346 ms

connect.js

connect.js

739 ms

hotlog_redirects

hotlog_redirects

228 ms

8NRy4qn2aGU.jpg

8NRy4qn2aGU.jpg

408 ms

NP0kEin0KbU.jpg

NP0kEin0KbU.jpg

400 ms

roxpWxyT9nc.jpg

roxpWxyT9nc.jpg

391 ms

4F47LQQUu5Y.jpg

4F47LQQUu5Y.jpg

406 ms

qq1rmz5pmYA.jpg

qq1rmz5pmYA.jpg

407 ms

CHAYGoze8G0.jpg

CHAYGoze8G0.jpg

410 ms

hNnPl6LMB2M.jpg

hNnPl6LMB2M.jpg

403 ms

D4DROVmE4EY.jpg

D4DROVmE4EY.jpg

423 ms

rsbRUp6vwKA.jpg

rsbRUp6vwKA.jpg

429 ms

camera_50.png

camera_50.png

156 ms

w_logo.png

w_logo.png

152 ms

dk

dk

165 ms

widget.a86e7c8a.css

widget.a86e7c8a.css

957 ms

image

image

1622 ms

image

image

928 ms

image

image

1905 ms

image

image

1823 ms

image

image

2066 ms

image

image

953 ms

image

image

951 ms

image

image

1618 ms

image

image

1867 ms

ic_odkl_m.png

ic_odkl_m.png

194 ms

add-or.png

add-or.png

398 ms

ic_odkl.png

ic_odkl.png

599 ms

Accessibility Review

levashov.org accessibility score

42

Accessibility Issues

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

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

levashov.org 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

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

levashov.org SEO score

62

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Links are not crawlable

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 Levashov.org 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 Levashov.org 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

levashov.org

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