4.3 sec in total
460 ms
3.7 sec
205 ms
Click here to check amazing 4STUD content for Russia. Otherwise, check out these important facts you probably never knew about 4stud.info
Учебно-методические комплексы по дисциплинам кафедры АСОИУ ОмГТУ. Конспекты лекций, лабораторные работы, задания на СРС и КП для студентов-АСУшников.
Visit 4stud.infoWe analyzed 4stud.info page load time and found that the first response time was 460 ms and then it took 3.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.
4stud.info performance score
name
value
score
weighting
Value2.5 s
69/100
10%
Value5.7 s
17/100
25%
Value6.8 s
35/100
10%
Value1,520 ms
13/100
30%
Value0.063
97/100
15%
Value11.7 s
17/100
10%
460 ms
887 ms
119 ms
6 ms
390 ms
Our browser made a total of 51 requests to load all elements on the main page. We found that 14% of them (7 requests) were addressed to the original 4stud.info, 12% (6 requests) were made to Openstat.net and 12% (6 requests) were made to Pagead2.googlesyndication.com. The less responsive or slowest element that took the longest time to load (887 ms) belongs to the original domain 4stud.info.
Page size can be reduced by 73.7 kB (27%)
272.2 kB
198.5 kB
In fact, the total size of 4stud.info main page is 272.2 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 151.4 kB which makes up the majority of the site volume.
Potential reduce by 26.9 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 26.9 kB or 77% of the original size.
Potential reduce by 1.2 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. 4STUD images are well optimized though.
Potential reduce by 38.0 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 38.0 kB or 25% of the original size.
Potential reduce by 7.5 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. 4stud.info needs all CSS files to be minified and compressed as it can save up to 7.5 kB or 70% of the original size.
Number of requests can be reduced by 28 (67%)
42
14
The browser has sent 42 CSS, Javascripts, AJAX and image requests in order to completely render the main page of 4STUD. 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 4 to 1 for CSS and as a result speed up the page load time.
4stud.info
460 ms
www.4stud.info
887 ms
s.css
119 ms
adsbygoogle.js
6 ms
top100.jcn
390 ms
ca-pub-8891979384043299.js
72 ms
zrt_lookup.html
123 ms
show_ads_impl.js
70 ms
pluso-like.js
275 ms
ga.js
18 ms
bg.gif
131 ms
4stud.gif
229 ms
__utm.gif
67 ms
ads
334 ms
osd.js
11 ms
ads
277 ms
p.css
120 ms
top100.scn
126 ms
hit
293 ms
cnt.js
285 ms
m.css
119 ms
css
69 ms
m_js_controller.js
64 ms
abg.js
97 ms
favicon
75 ms
googlelogo_color_112x36dp.png
65 ms
nessie_icon_tiamat_white.png
44 ms
s
28 ms
x_button_blue2.png
20 ms
2124506.js
132 ms
counter2
137 ms
Tqng9ngJVK4Gqvh3e602hP-HqlN49KFEUSDtmrOPmWo.js
13 ms
Hgo13k-tfSpn0qi1SFdUfaCWcynf_cDxXwCLxiixG1c.ttf
57 ms
89.gif
138 ms
cnt
244 ms
03.png
389 ms
process
267 ms
hit;PLUSO
251 ms
f.gif
135 ms
plus.png
260 ms
ui
35 ms
cnt
123 ms
kb.js
293 ms
collect_pluso.js
258 ms
dct.js
138 ms
h.gif
155 ms
s.js
274 ms
crossd_pluso_iframe.html
143 ms
3696d9c5412d7dbcbaf1f52aba44c40f
71 ms
activeview
14 ms
cjvQ03NiSvq4dyoaTbNYIw
115 ms
4stud.info 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
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
4stud.info best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
General
Impact
Issue
Browser errors were logged to the console
Page has valid source maps
4stud.info SEO score
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
RU
N/A
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise 4stud.info 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 4stud.info 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.
4stud.info
Open Graph description is not detected on the main page of 4STUD. 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: