Access nkj.ru. Наука и жизнь

name

value

score

weighting

FCP (First Contentful Paint)

Value5.6 s

6/100

10%

LCP (Largest Contentful Paint)

Value11.1 s

0/100

25%

SI (Speed Index)

Value9.5 s

12/100

10%

TBT (Total Blocking Time)

Value2,010 ms

7/100

30%

CLS (Cumulative Layout Shift)

Value0.041

99/100

15%

TTI (Time to Interactive)

Value18.7 s

3/100

10%

nkj.ru

483 ms

www.nkj.ru

889 ms

ui.design-tokens.css

132 ms

style.css

263 ms

style.css

392 ms

Our browser made a total of 105 requests to load all elements on the main page. We found that 77% of them (81 requests) were addressed to the original Nkj.ru, 7% (7 requests) were made to Top-fwz1.mail.ru and 2% (2 requests) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (1.2 sec) belongs to the original domain Nkj.ru.

Content Size

1.6 MB

After Optimization

1.5 MB

In fact, the total size of Nkj.ru main page is 1.6 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. 55% of websites need less resources to load. Images take 1.1 MB which makes up the majority of the site volume.

HTML Optimization

-73%

Potential reduce by 48.5 kB

Original 66.3 kB
After minification 62.2 kB
After compression 17.7 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 48.5 kB or 73% of the original size.

Image Optimization

-3%

Potential reduce by 29.8 kB

Original 1.1 MB
After minification 1.1 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. Nkj images are well optimized though.

JavaScript Optimization

-12%

Potential reduce by 47.5 kB

Original 385.5 kB
After minification 385.4 kB
After compression 338.1 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 47.5 kB or 12% of the original size.

CSS Optimization

-23%

Potential reduce by 11.2 kB

Original 47.5 kB
After minification 47.5 kB
After compression 36.4 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. Nkj.ru needs all CSS files to be minified and compressed as it can save up to 11.2 kB or 23% of the original size.

Requests Now

102

After Optimization

The browser has sent 102 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Nkj. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 21 to 1 for JavaScripts and from 15 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

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.

High

[aria-*] attributes do not match their roles

High

[aria-hidden="true"] elements contain focusable descendents

High

ARIA input fields do not have accessible names

High

Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.

High

[aria-*] attributes do not have valid values

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.

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

These are opportunities to improve keyboard navigation in your application.

High

Heading elements are not in a sequentially-descending order

Areas of Improvement

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

High

Serves images with low resolution

Low

Detected JavaScript libraries

High

Page has valid source maps

Search Engine Optimization Advices

Format your HTML in a way that enables crawlers to better understand your app’s content.

High

Image elements do not have [alt] attributes

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/).

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

Language Detected

RU
Language Claimed

RU
Encoding

UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Nkj.ru can be misinterpreted by Google and other search engines. Our service has detected that Russian is used on the page, and it matches the claimed language. Our system also found out that Nkj.ru main page’s claimed encoding is utf-8. Use of this encoding format is the best practice as the main page visitors from all over the world won’t have any issues with symbol transcription.

Social Sharing Optimization

nkj.ru

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

Report Summary

Performance

Accessibility

Best Practices

SEO

Наука и жизнь

Page Load Speed

First Response

Resources Loaded

Page Rendered

About Website

Key Findings

Performance Metrics

Measured Metrics

FCP (First Contentful Paint)

LCP (Largest Contentful Paint)

SI (Speed Index)

TBT (Total Blocking Time)

CLS (Cumulative Layout Shift)

TTI (Time to Interactive)

Network Requests Diagram

nkj.ru

www.nkj.ru

ui.design-tokens.css

style.css

style.css

Page Optimization Overview & Recommendations

Content Size

After Optimization

HTML Optimization

Image Optimization

JavaScript Optimization

CSS Optimization

Requests Breakdown

Requests Now

After Optimization

Network Requests Diagram

nkj.ru

www.nkj.ru

ui.design-tokens.css

style.css

style.css

style.css

style.css

bootstrap.min.css

glyphicons.css

noto_sans.css

popup.css

style.css

style.css

style.css

style.css

style.css

styles.css

core.js

pageobject.js

core_window.js

jquery-1.11.0.min.js

ajax_basket.js

script.js

js

loader.js

bootstrap.min.js

bootstrapx-clickover.js

ba.js

cycounter

90e47cb64a3a666fb4b1b8e878b4ddc1.jpg

back_ads.png

back_gradient.png

12p.png

glyphicons-halflings.png

sm-new4.png

basket.png

logo_big.png

rss_24.png

jt04q8jk1hiyzj6en5aq730q7f2vkj1b.jpg

c9yyci53c3wvev51n5dtmhmme1elnsuu.jpg

u2kqzi08m8wa614g13rswircgeabsdw5.jpg

dtmmixnwvy4m139y97wgjdeaak53t1yl.jpg

vkc1gzfviddzz7cfrvek8zaa4oxt8pmk.jpg