6.7 sec in total
447 ms
5.3 sec
942 ms
Visit nkj.ru now to see the best up-to-date Nkj content for Russia and also check out these interesting facts you probably never knew about nkj.ru
Сайт журнала «Наука и жизнь»: наука, новости науки, российская наука, наука и образование. Архив журнала, форум, интернет-магазин.
Visit nkj.ruWe analyzed Nkj.ru page load time and found that the first response time was 447 ms and then it took 6.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.
nkj.ru performance score
name
value
score
weighting
Value5.9 s
4/100
10%
Value11.9 s
0/100
25%
Value9.8 s
10/100
10%
Value2,140 ms
6/100
30%
Value0.109
87/100
15%
Value18.1 s
3/100
10%
447 ms
634 ms
228 ms
234 ms
340 ms
Our browser made a total of 155 requests to load all elements on the main page. We found that 41% of them (64 requests) were addressed to the original Nkj.ru, 13% (20 requests) were made to Pbs.twimg.com and 8% (12 requests) were made to Vk.com. The less responsive or slowest element that took the longest time to load (1.6 sec) belongs to the original domain Nkj.ru.
Page size can be reduced by 1.3 MB (24%)
5.5 MB
4.2 MB
In fact, the total size of Nkj.ru main page is 5.5 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. 70% of websites need less resources to load. Images take 3.9 MB which makes up the majority of the site volume.
Potential reduce by 99.5 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 99.5 kB or 79% of the original size.
Potential reduce by 80.4 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. Nkj images are well optimized though.
Potential reduce by 601.2 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 601.2 kB or 69% of the original size.
Potential reduce by 546.6 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 546.6 kB or 86% of the original size.
Number of requests can be reduced by 51 (34%)
149
98
The browser has sent 149 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 31 to 1 for JavaScripts and from 12 to 1 for CSS and as a result speed up the page load time.
nkj.ru
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nkj.ru accessibility score
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
[aria-*] attributes do not match their roles
[aria-hidden="true"] elements contain focusable descendents
ARIA input fields do not have accessible names
Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.
[aria-*] attributes do not have valid values
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
<frame> or <iframe> elements do not have a title
Image elements do not have [alt] attributes
Links do not have a discernible name
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
nkj.ru best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Includes front-end JavaScript libraries with known security vulnerabilities
Ensure CSP is effective against XSS attacks
User Experience
Impact
Issue
Displays images with incorrect aspect ratio
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
Page has valid source maps
nkj.ru SEO score
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Image elements do not have [alt] attributes
Mobile Friendly
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/).
Impact
Issue
Document uses legible font sizes
Tap targets are not sized appropriately
RU
RU
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.
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: