5.5 sec in total
857 ms
3.9 sec
730 ms
Visit 4brain.ru now to see the best up-to-date 4 Brain content for Russia and also check out these interesting facts you probably never knew about 4brain.ru
Онлайн-курсы, статьи, книги, полезные материалы, онлайн-упражнения, игры и тренажёры для развития междисциплинарных гибких навыков (soft skills).
Visit 4brain.ruWe analyzed 4brain.ru page load time and found that the first response time was 857 ms and then it took 4.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.
4brain.ru performance score
name
value
score
weighting
Value3.8 s
28/100
10%
Value12.7 s
0/100
25%
Value8.3 s
20/100
10%
Value890 ms
32/100
30%
Value0
100/100
15%
Value14.7 s
8/100
10%
857 ms
256 ms
253 ms
263 ms
268 ms
Our browser made a total of 147 requests to load all elements on the main page. We found that 58% of them (85 requests) were addressed to the original 4brain.ru, 10% (14 requests) were made to Vk.com and 3% (4 requests) were made to Mc.yandex.ru. The less responsive or slowest element that took the longest time to load (1.6 sec) belongs to the original domain 4brain.ru.
Page size can be reduced by 1.5 MB (42%)
3.6 MB
2.1 MB
In fact, the total size of 4brain.ru main page is 3.6 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. 70% of websites need less resources to load. Images take 2.1 MB which makes up the majority of the site volume.
Potential reduce by 70.3 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 70.3 kB or 77% of the original size.
Potential reduce by 381.7 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. Obviously, 4 Brain needs image optimization as it can save up to 381.7 kB or 18% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 966.7 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 966.7 kB or 78% of the original size.
Potential reduce by 109.1 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. 4brain.ru needs all CSS files to be minified and compressed as it can save up to 109.1 kB or 80% of the original size.
Number of requests can be reduced by 37 (26%)
141
104
The browser has sent 141 CSS, Javascripts, AJAX and image requests in order to completely render the main page of 4 Brain. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 20 to 1 for JavaScripts and from 9 to 1 for CSS and as a result speed up the page load time.
4brain.ru
857 ms
style.css
256 ms
commentsandtests.css
253 ms
lk.css
263 ms
game.css
268 ms
css
38 ms
jquery-latest.js
669 ms
jquery-ui.js
819 ms
jquery.touchslider.min.js
377 ms
table.filter.js
388 ms
scripts.js
391 ms
share.js
254 ms
font-awesome.min.css
45 ms
css
45 ms
openapi.js
505 ms
orphus.js
277 ms
4brain.png
141 ms
courses.png
140 ms
tests.png
139 ms
book.png
141 ms
lk.png
143 ms
rate.png
141 ms
soc.png
268 ms
logo-top.png
269 ms
all.js
41 ms
9QLoNJaHMwg.jpg
411 ms
0KmCRO-38DE.jpg
264 ms
samopoznanie.png
253 ms
schitat-v-ume.png
256 ms
skorochtenie.png
255 ms
memory.png
257 ms
lider.png
365 ms
tvorcheskoe-myshlenie.png
371 ms
oratorskoe-iskusstvo.png
374 ms
pisatelskoe-masterstvo.png
377 ms
zdorovyj-obraz-zhizni.png
376 ms
psy.png
379 ms
triz.png
487 ms
nlp.png
496 ms
akterskoe-masterstvo.png
505 ms
spirit.png
509 ms
time.png
508 ms
pedagogika.png
511 ms
logika.png
612 ms
rus.png
621 ms
road2.jpg
1027 ms
gaming.png
639 ms
nback.jpg
638 ms
icoshulte.png
642 ms
fotoreading.jpg
862 ms
structura.jpg
896 ms
icowriteword.png
1034 ms
prostumn.jpg
770 ms
accosiate.jpg
775 ms
calculate.jpg
903 ms
FZQqjemuMkmQGwk1YxMXlfesZW2xOQ-xsNqO47m55DA.woff
24 ms
3_0_EAEAEAFF_EAEAEAFF_0_pageviews
244 ms
lw5eAspkJz0dp6d4Odpeog.woff
16 ms
W4IAweRTlhKE0KN1t814DA.woff
15 ms
jquery.min.js
46 ms
upload.gif
128 ms
sdk.js
84 ms
widget_community.php
300 ms
fontawesome-webfont.woff
21 ms
watch.js
189 ms
opensearch.js
56 ms
icomatrpamyati.png
793 ms
do100.jpg
996 ms
oponchislo.jpg
1019 ms
vozved-v-kvadrat.jpg
915 ms
examing.png
921 ms
icoskorochtenie.png
1148 ms
121 ms
xd_arbiter.php
69 ms
xd_arbiter.php
147 ms
punycode.js
5 ms
logika.png
918 ms
0.jpg
1047 ms
memory.jpg
923 ms
akterskoe-masterstvo.png
1112 ms
lider-main.jpg
1142 ms
watch.js
440 ms
nauchitsja-pisat.jpg
1042 ms
loader_nav19127_3.js
128 ms
lite.css
133 ms
lite.js
507 ms
lang3_0.js
254 ms
widget_community.css
255 ms
xdm.js
258 ms
al_community.js
259 ms
%D0%BF%D1%81%D0%B8%D1%85%D0%BE%D0%BB%D0%BE%D0%B3%D0%B8%D1%8F-%D1%87%D0%B5%D0%BB%D0%BE%D0%B2%D0%B5%D0%BA%D0%B0.jpg
1073 ms
%D0%BD%D0%B5%D0%B9%D1%80%D0%BE%D0%BB%D0%B8%D0%BD%D0%B3%D0%B2%D0%B8%D1%81%D1%82%D0%B8%D1%87%D0%B5%D1%81%D0%BA%D0%BE%D0%B5-%D0%BF%D1%80%D0%BE%D0%B3%D1%80%D0%B0%D0%BC%D0%BC%D0%B8%D1%80%D0%BE%D0%B2%D0%B0%D0%BD%D0%B8%D0%B5.jpg
1181 ms
tvorcheskoe-myshlenie.jpg
1057 ms
oratorskoe-iskusstvo.jpg
1185 ms
time.jpg
1242 ms
schitayte-v-ume.jpg
1404 ms
fokusy-jazyka.png
1599 ms
kak-vistupat.jpg
1080 ms
tehnika-trahtenberga.jpg
1308 ms
kak-razgovarivat.jpg
1315 ms
super-pamyat.jpg
1331 ms
uchebnik-ritiriki-lemerman.jpg
1359 ms
yazyk-telodvizhenii.jpg
1428 ms
lk-big.jpg
1453 ms
topers.png
1317 ms
noavatar.png
1334 ms
fec49da7dd38471d1853691ced489381.jpg
1352 ms
advert.gif
85 ms
35b3d2cdaee9375573431398cd8b8c1c.png
1317 ms
f3dc74d718a7e1eb0b3874fefd0e63a6.jpg
1330 ms
4.png
1260 ms
ZhVX_4UYKCc.jpg
258 ms
utWuItkeAXs.jpg
395 ms
D5mSaW-q9SY.jpg
399 ms
nV4GlMdZ8QU.jpg
380 ms
BCYQP_ya9WI.jpg
393 ms
ojkQ9n4_BzQ.jpg
401 ms
wLMSy_-EhpE.jpg
267 ms
_jfkK_9V2QM.jpg
403 ms
GQhyP07MxF4.jpg
392 ms
pXZ1LERC_FU.jpg
393 ms
0bHm1cYNZJ4.jpg
386 ms
gu8k5LkA4sQ.jpg
393 ms
Cl-DMm7u1Do.jpg
386 ms
30tFhXSbJPo.jpg
393 ms
Ll_a50mBNwU.jpg
386 ms
rueKwlND6xs.jpg
393 ms
Vg7hL0rmZQE.jpg
397 ms
HeSZGQEHNWM.jpg
398 ms
w7EX6DWadzc.jpg
397 ms
bp4aQVkpN6A.jpg
256 ms
KsNKgC4g0BU.jpg
389 ms
aTTQ6vt1eqg.jpg
399 ms
1ka0n7UW3Kg.jpg
379 ms
hiJdksRIX1A.jpg
502 ms
4AFDJ17vPYU.jpg
511 ms
EhFXGLDz2R8.jpg
512 ms
camera_50.png
127 ms
deactivated_50.png
132 ms
w_logo.png
130 ms
1
89 ms
6.png
1268 ms
3.png
1301 ms
2.png
1307 ms
5.png
1193 ms
1.png
1204 ms
orphus.gif
1213 ms
4brain.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
Links do not have a discernible name
4brain.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
Page has valid source maps
4brain.ru 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 4brain.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 4brain.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.
4brain.ru
Open Graph description is not detected on the main page of 4 Brain. 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: