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Welcome to zahav.elementy.ru homepage info - get ready to check Zahav Elementy best content for Russia right away, or after learning these important things about zahav.elementy.ru
Сайт о науке: новости науки, научно-популярные статьи, лекции, задачи, плакаты, видео, ответы на детские вопросы. Тематические разделы: Большой адронный коллайдер, «Масштабы», научно-популярная энцикл...
Visit zahav.elementy.ruWe analyzed Zahav.elementy.ru page load time and found that the first response time was 6.9 sec and then it took 16.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.
zahav.elementy.ru performance score
name
value
score
weighting
Value4.9 s
10/100
10%
Value7.7 s
3/100
25%
Value6.7 s
37/100
10%
Value640 ms
46/100
30%
Value0.006
100/100
15%
Value35.7 s
0/100
10%
6945 ms
1998 ms
396 ms
753 ms
1670 ms
Our browser made a total of 118 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Zahav.elementy.ru, 76% (90 requests) were made to Elementy.ru and 9% (11 requests) were made to W.uptolike.com. The less responsive or slowest element that took the longest time to load (7.9 sec) relates to the external source Elementy.ru.
Page size can be reduced by 653.6 kB (51%)
1.3 MB
629.5 kB
In fact, the total size of Zahav.elementy.ru main page is 1.3 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. 30% of websites need less resources to load. Images take 482.1 kB which makes up the majority of the site volume.
Potential reduce by 397.9 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 397.9 kB or 85% of the original size.
Potential reduce by 26.6 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. Zahav Elementy images are well optimized though.
Potential reduce by 186.7 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 186.7 kB or 66% of the original size.
Potential reduce by 42.4 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. Zahav.elementy.ru needs all CSS files to be minified and compressed as it can save up to 42.4 kB or 85% of the original size.
Number of requests can be reduced by 50 (44%)
113
63
The browser has sent 113 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Zahav Elementy. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 14 to 1 for JavaScripts and as a result speed up the page load time.
zahav.elementy.ru
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zahav.elementy.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
Image elements do not have [alt] attributes
Links do not have a discernible name
zahav.elementy.ru best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
User Experience
Impact
Issue
Displays images with incorrect aspect ratio
Serves images with low resolution
General
Impact
Issue
Browser errors were logged to the console
Page has valid source maps
zahav.elementy.ru SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Image elements do not have [alt] attributes
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 Zahav.elementy.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 Zahav.elementy.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.
zahav.elementy.ru
Open Graph description is not detected on the main page of Zahav Elementy. 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: