5 sec in total
578 ms
4.1 sec
299 ms
Click here to check amazing Khcenter content. Otherwise, check out these important facts you probably never knew about khcenter.ru
Центр изучения иностранных языков. Мы поможем вам овладеть английским, китайским и прочими языками в совершенстве. Лучшие преподаватели, высокое качество.
Visit khcenter.ruWe analyzed Khcenter.ru page load time and found that the first response time was 578 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.
khcenter.ru performance score
name
value
score
weighting
Value2.8 s
56/100
10%
Value2.8 s
83/100
25%
Value6.9 s
33/100
10%
Value3,130 ms
2/100
30%
Value0.03
100/100
15%
Value19.1 s
3/100
10%
578 ms
121 ms
243 ms
232 ms
27 ms
Our browser made a total of 58 requests to load all elements on the main page. We found that 24% of them (14 requests) were addressed to the original Khcenter.ru, 33% (19 requests) were made to St6-21.vk.com and 14% (8 requests) were made to Vk.com. The less responsive or slowest element that took the longest time to load (1.3 sec) relates to the external source St6-21.vk.com.
Page size can be reduced by 235.3 kB (27%)
868.9 kB
633.6 kB
In fact, the total size of Khcenter.ru main page is 868.9 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. 55% of websites need less resources to load. CSS take 486.0 kB which makes up the majority of the site volume.
Potential reduce by 27.4 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 27.4 kB or 72% of the original size.
Potential reduce by 155.6 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, Khcenter needs image optimization as it can save up to 155.6 kB or 72% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 43.4 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 43.4 kB or 34% of the original size.
Potential reduce by 8.9 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. Khcenter.ru has all CSS files already compressed.
Number of requests can be reduced by 35 (70%)
50
15
The browser has sent 50 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Khcenter. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 19 to 1 for JavaScripts and from 13 to 1 for CSS and as a result speed up the page load time.
khcenter.ru
578 ms
css_rEI_5cK_B9hB4So2yZUtr5weuEV3heuAllCDE6XsIkI.css
121 ms
css_7l1sELInCOKeS9Ox5Uim1YpAqzKym6ZI7SCLWPbypCA.css
243 ms
css_PGbJgHCUCBf4dg7K9Kt8aAwsApndP4GZ9RuToPy3-Fk.css
232 ms
font-awesome.min.css
27 ms
css_RI8nuhxaR3LW_DYzWpNTuBw4dgDHE_oPB53MTRyUMpo.css
235 ms
js_vDrW3Ry_4gtSYaLsh77lWhWjIC6ml2QNkcfvfP5CVFs.js
348 ms
js_5ZvYbR_RpAnAa4Gy_hGCjwhuaBQEWzQIAwlMCStkIuU.js
259 ms
js_A1zVD-TDosZRMYbnf0XkhkCxdIMCCuzT4aco2kPzGcI.js
259 ms
js_iGXLBe1tbcU88QTjOsowVfEmdGLhvKv9WmSClk1TO_w.js
342 ms
openapi.js
258 ms
openapi.js
575 ms
574 ms
MyLogo_grey3.png
475 ms
theme-sprite.png
130 ms
info.png
150 ms
block-gradient.png
135 ms
block-gradient.png
129 ms
upload.gif
115 ms
widget_community.php
282 ms
cnt.aspx
491 ms
hit
254 ms
code.js
287 ms
watch.js
4 ms
1196 ms
hit
404 ms
loader_nav21524499078_3.js
250 ms
fonts_cnt.5df9a2d31f91db9fc063.css
1030 ms
lite.6af08af59db160f1d821.css
548 ms
lite.js
440 ms
lang3_0.js
379 ms
xdm.js
416 ms
ui_common.f84b667095c1513ae4a5.css
449 ms
vendors.1505d7877b40f6cb4dac.js
633 ms
palette.c11f1080c2b166a63023.js
527 ms
audioplayer.1fff3154e7b8519a9805.js
631 ms
common.f9274e68272fda8c35f2.js
1007 ms
ui_common.851b2b33538608cb0914.css
632 ms
ui_common.4471ba55c7a94980f60a.js
659 ms
audioplayer.851b2b33538608cb0914.css
715 ms
audioplayer.a973faf2d3af5fffdd34.js
729 ms
widget_community.ad42a33851e9f0531ecc.css
717 ms
likes.851b2b33538608cb0914.css
747 ms
likes.dc023372a4b0549e2e40.js
803 ms
community.js
1267 ms
base.9e3d08c055bdd0c7ee80.css
835 ms
counter
547 ms
HdDzCOxz5BfzbU9j8jblGcRIaFQ5c6wobQg9QcdEexOWxFqT0aNm3YHBWf5FtOeg-UeOes_p.jpg
481 ms
camera_50.png
113 ms
kco7Qip4wqRRU2ICz71ARm9MnI-TAm7ALvo2Z7Ojfv7aInAqgkghDDClvtvytokMFi5IRnjx.jpg
548 ms
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372 ms
aUYFhFtzRnnPhH-w8uLxS4Mt6gek1hp-RSLS8MGyDTuT9HgjhLK-e2LMX-2jTj87R6Ssr3A2.jpg
456 ms
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527 ms
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528 ms
post_widget.png
98 ms
upload.gif
97 ms
4ohadLuSQH
587 ms
tracker
133 ms
khcenter.ru 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
[role] values are not valid
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
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
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
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.
khcenter.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
khcenter.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
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Khcenter.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 Khcenter.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.
khcenter.ru
Open Graph description is not detected on the main page of Khcenter. 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: