4.9 sec in total
520 ms
3.9 sec
438 ms
Click here to check amazing 21 Vu content for Russia. Otherwise, check out these important facts you probably never knew about 21vu.ru
Вектор-успеха.рф (21vu.ru) — портал для детей и подростков, родителей и педагогов. Цели сайта — поддерживать и развивать таланты детей, давать информацию для саморазвития, организовать творческий досу...
Visit 21vu.ruWe analyzed 21vu.ru page load time and found that the first response time was 520 ms and then it took 4.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.
21vu.ru performance score
name
value
score
weighting
Value3.7 s
30/100
10%
Value4.1 s
47/100
25%
Value5.1 s
62/100
10%
Value850 ms
34/100
30%
Value0.018
100/100
15%
Value13.3 s
12/100
10%
520 ms
138 ms
263 ms
265 ms
274 ms
Our browser made a total of 112 requests to load all elements on the main page. We found that 33% of them (37 requests) were addressed to the original 21vu.ru, 13% (15 requests) were made to Ulogin.ru and 12% (13 requests) were made to Vk.com. The less responsive or slowest element that took the longest time to load (1.1 sec) relates to the external source Ulogin.ru.
Page size can be reduced by 566.6 kB (53%)
1.1 MB
510.8 kB
In fact, the total size of 21vu.ru main page is 1.1 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. 50% of websites need less resources to load. Javascripts take 641.4 kB which makes up the majority of the site volume.
Potential reduce by 47.2 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 47.2 kB or 77% of the original size.
Potential reduce by 31.5 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. Obviously, 21 Vu needs image optimization as it can save up to 31.5 kB or 11% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 429.1 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 429.1 kB or 67% of the original size.
Potential reduce by 58.8 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. 21vu.ru needs all CSS files to be minified and compressed as it can save up to 58.8 kB or 77% of the original size.
Number of requests can be reduced by 46 (43%)
106
60
The browser has sent 106 CSS, Javascripts, AJAX and image requests in order to completely render the main page of 21 Vu. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 28 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.
21vu.ru
520 ms
css_xE-rWrJf-fncB6ztZfd2huxqgxu4WO-qwma6Xer30m4.css
138 ms
css_ECrGufTZwuUDtOF5KKzuZwRdlqgzIkwyZtZJcrKm-sI.css
263 ms
css_XyELJoL1qsdMTQdFrViNSLevfcrzPM23hhX_NrpUCh0.css
265 ms
css_7nxX2LbpdhJ_dbUGNKVfKbnHRGmVs52qwrWyXrTwNLc.css
274 ms
js_UWQINlriydSoeSiGQxToOUdv493zEa7dpsXC1OtYlZU.js
413 ms
js_COMsmDyrY9mzVU28X2uGvF4Ba3vd5eTo5xEO7dvCUZM.js
282 ms
js_lAHX9H5BeJ82FGc6KgtGgxabWTS9W8nimKoWmgTtLjo.js
285 ms
openapi.js
380 ms
ulogin.js
528 ms
css
26 ms
1_0_FFFFFFFF_E6E6FAFF_0_uniques
298 ms
top-stripe.gif
137 ms
marker16_40x33.png
132 ms
login-link.png
143 ms
register-link.png
135 ms
top-search.png
143 ms
img_6241.jpg
275 ms
72697505_1.jpg
393 ms
26_0.jpg
397 ms
61072188.jpg
269 ms
65801312.jpg
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65659540.jpg
292 ms
243604587.jpg
404 ms
734858882.jpg
413 ms
68727330.jpg
425 ms
noavatar.jpg
428 ms
all.js
97 ms
logo.png
515 ms
intro-bg.png
520 ms
menu-bg.png
529 ms
menu-li.gif
544 ms
article_ico.jpg
556 ms
title.png
560 ms
upload.gif
136 ms
context.js
227 ms
widget_community.php
298 ms
suggest.js
67 ms
opensearch.js
68 ms
context_static_r1065.js
563 ms
1_0_FFFFFFFF_E6E6FAFF_0_uniques
347 ms
loader_nav19130_3.js
127 ms
lite.css
133 ms
lite.js
379 ms
lang3_0.js
255 ms
widget_community.css
257 ms
xdm.js
258 ms
al_community.js
261 ms
9iJySxYnW8Q.jpg
388 ms
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262 ms
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415 ms
c9nbIxzhGVw.jpg
274 ms
ERLs7PdHHqw.jpg
269 ms
camera_50.png
129 ms
deactivated_50.png
130 ms
w_logo.png
128 ms
watch.js
181 ms
75532
163 ms
watch.js
677 ms
menu-leaf.png
136 ms
post-login.png
133 ms
post-pass.png
142 ms
post-sbm.png
135 ms
common_3.js
388 ms
i-com-corner.png
143 ms
fbutton-blue.png
140 ms
fbutton-orange.png
256 ms
fbutton-green.png
255 ms
match
157 ms
analytics.js
11 ms
collect
16 ms
blank.gif
789 ms
link.png
817 ms
stats.html
821 ms
drop.html
823 ms
panel.png
1140 ms
154 ms
387 ms
advert.gif
86 ms
1
87 ms
399 ms
9943153
85 ms
easyXDM.min.js
155 ms
stats.js
162 ms
iscroll.5.js
163 ms
lang.js
162 ms
drop.js
306 ms
hit
525 ms
hit
502 ms
bga.png
155 ms
small.png
312 ms
9943153
418 ms
hit
144 ms
107nCM61d70I9J5HYUv-Wj3h-ZxKYxOPPsq5aOW-bLIML9ZcMOys4I4HWPq2de0Fdu0PRWK0
115 ms
hit
131 ms
21vu.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.
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
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
Links do not have a discernible name
21vu.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
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
21vu.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
EN
RU
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise 21vu.ru can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it does not match the claimed Russian language. Our system also found out that 21vu.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.
21vu.ru
Open Graph description is not detected on the main page of 21 Vu. 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: