6.4 sec in total
1.9 sec
4 sec
427 ms
Welcome to professornikolaev.ru homepage info - get ready to check Professornikolaev best content for Russia right away, or after learning these important things about professornikolaev.ru
Visit professornikolaev.ruWe analyzed Professornikolaev.ru page load time and found that the first response time was 1.9 sec and then it took 4.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.
professornikolaev.ru performance score
name
value
score
weighting
Value5.0 s
9/100
10%
Value5.8 s
15/100
25%
Value6.2 s
43/100
10%
Value2,320 ms
5/100
30%
Value0
100/100
15%
Value14.8 s
8/100
10%
1933 ms
301 ms
668 ms
300 ms
124 ms
Our browser made a total of 42 requests to load all elements on the main page. We found that 69% of them (29 requests) were addressed to the original Professornikolaev.ru, 7% (3 requests) were made to Yastatic.net and 2% (1 request) were made to Ajax.googleapis.com. The less responsive or slowest element that took the longest time to load (1.9 sec) belongs to the original domain Professornikolaev.ru.
Page size can be reduced by 179.4 kB (43%)
419.5 kB
240.0 kB
In fact, the total size of Professornikolaev.ru main page is 419.5 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. 25% of websites need less resources to load. Images take 194.1 kB which makes up the majority of the site volume.
Potential reduce by 44.7 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 44.7 kB or 79% of the original size.
Potential reduce by 8.2 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. Professornikolaev images are well optimized though.
Potential reduce by 85.3 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 85.3 kB or 71% of the original size.
Potential reduce by 41.3 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. Professornikolaev.ru needs all CSS files to be minified and compressed as it can save up to 41.3 kB or 84% of the original size.
Number of requests can be reduced by 13 (33%)
39
26
The browser has sent 39 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Professornikolaev. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 11 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.
professornikolaev.ru
1933 ms
reset.css
301 ms
style.css
668 ms
colorbox.css
300 ms
jquery.min.js
124 ms
jquery-ui-1.10.4.custom.js
820 ms
jquery.colorbox.js
298 ms
jquery.tinycarousel.min.js
299 ms
sendscript.js
459 ms
init.js
458 ms
share.js
33 ms
css
127 ms
logotype.jpg
259 ms
logo-rdkb.png
248 ms
phone-icon.png
257 ms
search-form.png
254 ms
buttons.png
255 ms
2.jpg
430 ms
1.jpg
709 ms
3.jpg
569 ms
author.jpg
631 ms
zoom.png
440 ms
operate.jpg
585 ms
United-Kingdom-flag-icon.png
600 ms
Italy-Flag-icon.png
601 ms
Serbia-Flag-icon.png
704 ms
United-States-Flag-icon.png
729 ms
@.png
735 ms
rdkb.jpg
747 ms
smf_rsmu_logo.png
802 ms
controls.png
796 ms
QIePyc2VNG7MYVpz9w94GqCWcynf_cDxXwCLxiixG1c.woff
215 ms
watch.js
57 ms
ya-share-cnt.html
154 ms
bg_buttons.png
731 ms
b-share-icon.png
259 ms
b-share_counter_large.png
299 ms
781 ms
share_count
1064 ms
dk
728 ms
fql.query
347 ms
share.php
720 ms
professornikolaev.ru accessibility score
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
Buttons do not have an accessible name
<frame> or <iframe> elements do not have a title
Links do not have a discernible name
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
Best practices
These items highlight common accessibility best practices.
Impact
Issue
[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.
professornikolaev.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
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
professornikolaev.ru SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
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
N/A
WINDOWS-1251
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Professornikolaev.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 Professornikolaev.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.
professornikolaev.ru
Open Graph description is not detected on the main page of Professornikolaev. 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: