5.1 sec in total
901 ms
3.7 sec
512 ms
Welcome to center25.ru homepage info - get ready to check Center 25 best content for Russia right away, or after learning these important things about center25.ru
Более 50 центров и органов по сертификации в одном месте на портале о Сертификации. Удобная фильтрация, сортировка, реальные отзывы студентов, функционал сравнения помогут Вам выбрать центр.
Visit center25.ruWe analyzed Center25.ru page load time and found that the first response time was 901 ms and then it took 4.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.
center25.ru performance score
name
value
score
weighting
Value4.2 s
19/100
10%
Value9.0 s
1/100
25%
Value8.1 s
21/100
10%
Value340 ms
75/100
30%
Value0
100/100
15%
Value7.5 s
48/100
10%
901 ms
447 ms
271 ms
261 ms
275 ms
Our browser made a total of 94 requests to load all elements on the main page. We found that 83% of them (78 requests) were addressed to the original Center25.ru, 4% (4 requests) were made to Mc.yandex.ru and 2% (2 requests) were made to Counter.rambler.ru. The less responsive or slowest element that took the longest time to load (1.1 sec) belongs to the original domain Center25.ru.
Page size can be reduced by 1.0 MB (65%)
1.6 MB
550.1 kB
In fact, the total size of Center25.ru main page is 1.6 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. 45% of websites need less resources to load. Javascripts take 1.0 MB which makes up the majority of the site volume.
Potential reduce by 113.2 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. This page needs HTML code to be minified as it can gain 21.2 kB, which is 15% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 113.2 kB or 82% of the original size.
Potential reduce by 46.4 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, Center 25 needs image optimization as it can save up to 46.4 kB or 15% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 796.8 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 796.8 kB or 76% of the original size.
Potential reduce by 76.2 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. Center25.ru needs all CSS files to be minified and compressed as it can save up to 76.2 kB or 80% of the original size.
Number of requests can be reduced by 47 (52%)
90
43
The browser has sent 90 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Center 25. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 31 to 1 for JavaScripts and from 18 to 1 for CSS and as a result speed up the page load time.
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center25.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
Links do not have a discernible name
center25.ru best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
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
center25.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
RU
N/A
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Center25.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 Center25.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.
{{og_description}}
center25.ru
Open Graph description is not detected on the main page of Center 25. 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: