3.5 sec in total
809 ms
2.2 sec
419 ms
Click here to check amazing Nauka 21 Vek content for Russia. Otherwise, check out these important facts you probably never knew about nauka21vek.ru
Новости науки и техники в России и за рубежом. Авиация и космонавтика, вооружения, hi-tech, открытия, концепции и изобретения, мир моторов, гипотезы и факты
Visit nauka21vek.ruWe analyzed Nauka21vek.ru page load time and found that the first response time was 809 ms and then it took 2.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.
nauka21vek.ru performance score
name
value
score
weighting
Value0.9 s
100/100
10%
Value3.5 s
65/100
25%
Value3.9 s
82/100
10%
Value1,760 ms
10/100
30%
Value0.006
100/100
15%
Value9.5 s
30/100
10%
809 ms
270 ms
269 ms
242 ms
482 ms
Our browser made a total of 47 requests to load all elements on the main page. We found that 47% of them (22 requests) were addressed to the original Nauka21vek.ru, 28% (13 requests) were made to Vk.com and 4% (2 requests) were made to Staticxx.facebook.com. The less responsive or slowest element that took the longest time to load (809 ms) belongs to the original domain Nauka21vek.ru.
Page size can be reduced by 277.1 kB (52%)
530.2 kB
253.0 kB
In fact, the total size of Nauka21vek.ru main page is 530.2 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. 40% of websites need less resources to load. Javascripts take 233.5 kB which makes up the majority of the site volume.
Potential reduce by 50.7 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 50.7 kB or 79% of the original size.
Potential reduce by 6.5 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. Nauka 21 Vek images are well optimized though.
Potential reduce by 180.7 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 180.7 kB or 77% of the original size.
Potential reduce by 39.2 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. Nauka21vek.ru needs all CSS files to be minified and compressed as it can save up to 39.2 kB or 81% of the original size.
Number of requests can be reduced by 10 (22%)
45
35
The browser has sent 45 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Nauka 21 Vek. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.
nauka21vek.ru
809 ms
style.css
270 ms
pagenavi-css.css
269 ms
share.js
242 ms
openapi.js
482 ms
nauka21vek.gif
280 ms
russianpatent_2.jpg
535 ms
seminar3.jpg
535 ms
lrk-95x75.jpg
301 ms
merz-95x75.jpg
395 ms
stone-tool-approximately-1-2-million-years-old-95x75.jpg
395 ms
air_vuzprom-95x75.jpg
389 ms
climate-95x75.jpg
395 ms
kc-46a-test-95x75.jpg
516 ms
star-hd-107146-95x75.jpg
519 ms
stars-95x75.jpg
422 ms
btrack-safe-light-95x75.jpg
434 ms
kraftwerk_power_plant-5-95x75.jpg
547 ms
enteromedics-95x75.jpg
548 ms
v1-95x75.jpg
548 ms
bee-95x75.jpg
561 ms
vesta-gullies-95x75.jpg
567 ms
light-beams-95x75.jpg
578 ms
1-95x75.jpg
680 ms
all.js
11 ms
112 ms
xd_arbiter.php
24 ms
xd_arbiter.php
31 ms
upload.gif
121 ms
widget_community.php
253 ms
hit
253 ms
loader_nav19172_3.js
121 ms
lite.css
126 ms
lite.js
393 ms
lang3_0.js
245 ms
widget_community.css
246 ms
xdm.js
249 ms
al_community.js
250 ms
11i9kS9I6cg.jpg
374 ms
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366 ms
ky3UKbMdUAg.jpg
355 ms
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253 ms
zirizI82mME.jpg
370 ms
L12mRasiSvg.jpg
361 ms
camera_50.png
121 ms
w_logo.png
133 ms
nauka21vek.ru accessibility score
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
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
Form elements do not have associated labels
Links do not have a discernible name
Internationalization and localization
These are opportunities to improve the interpretation of your content by users in different locales.
Impact
Issue
<html> element does not have a [lang] attribute
nauka21vek.ru best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
User Experience
Impact
Issue
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
nauka21vek.ru SEO score
RU
N/A
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Nauka21vek.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 Nauka21vek.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.
nauka21vek.ru
Open Graph description is not detected on the main page of Nauka 21 Vek. 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: