8.2 sec in total
763 ms
7.1 sec
279 ms
Welcome to chertezhi.ru homepage info - get ready to check Chertezhi best content for Russia right away, or after learning these important things about chertezhi.ru
Проект для проектировщиков и студентов технических специальностей, база проектов и технических решений из различных областей таких как строительство, машиностроение и т.д.
Visit chertezhi.ruWe analyzed Chertezhi.ru page load time and found that the first response time was 763 ms and then it took 7.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.
chertezhi.ru performance score
name
value
score
weighting
Value3.4 s
37/100
10%
Value6.4 s
10/100
25%
Value11.1 s
5/100
10%
Value740 ms
40/100
30%
Value0.36
30/100
15%
Value12.9 s
13/100
10%
763 ms
255 ms
386 ms
262 ms
261 ms
Our browser made a total of 113 requests to load all elements on the main page. We found that 53% of them (60 requests) were addressed to the original Chertezhi.ru, 7% (8 requests) were made to An.yandex.ru and 6% (7 requests) were made to Pagead2.googlesyndication.com. The less responsive or slowest element that took the longest time to load (4.4 sec) relates to the external source W.uptolike.com.
Page size can be reduced by 823.8 kB (47%)
1.7 MB
911.1 kB
In fact, the total size of Chertezhi.ru main page is 1.7 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. 60% of websites need less resources to load. Images take 728.3 kB which makes up the majority of the site volume.
Potential reduce by 375.5 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 375.5 kB or 87% of the original size.
Potential reduce by 65.8 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. Chertezhi images are well optimized though.
Potential reduce by 334.1 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 334.1 kB or 65% of the original size.
Potential reduce by 48.3 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. Chertezhi.ru needs all CSS files to be minified and compressed as it can save up to 48.3 kB or 84% of the original size.
Number of requests can be reduced by 52 (51%)
102
50
The browser has sent 102 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Chertezhi. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 24 to 1 for JavaScripts and from 9 to 1 for CSS and as a result speed up the page load time.
chertezhi.ru
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prototype.js
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chertezhi.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.
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
[id] attributes on active, focusable elements are not unique
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
Image elements do not have [alt] attributes
Form elements do not have associated labels
Links do not have a discernible name
chertezhi.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
Displays images with incorrect aspect ratio
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
chertezhi.ru SEO score
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
RU
RU
WINDOWS-1251
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Chertezhi.ru can be misinterpreted by Google and other search engines. Our service has detected that Russian is used on the page, and it matches the claimed language. Our system also found out that Chertezhi.ru main page’s claimed encoding is windows-1251. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.
chertezhi.ru
Open Graph description is not detected on the main page of Chertezhi. 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: