4.4 sec in total
520 ms
3.8 sec
81 ms
Welcome to rosuchebnik.ru homepage info - get ready to check Rosuchebnik best content for Russia right away, or after learning these important things about rosuchebnik.ru
Добро пожаловать на официальный сайт корпорации «Российский учебник» (издательство «ДРОФА – ВЕНТАНА»): каталог издательства, методическая помощь для учителей, новости образования.
Visit rosuchebnik.ruWe analyzed Rosuchebnik.ru page load time and found that the first response time was 520 ms and then it took 3.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.
rosuchebnik.ru performance score
name
value
score
weighting
Value4.7 s
12/100
10%
Value9.5 s
0/100
25%
Value14.4 s
1/100
10%
Value780 ms
38/100
30%
Value0.342
33/100
15%
Value18.6 s
3/100
10%
520 ms
2706 ms
91 ms
236 ms
457 ms
Our browser made a total of 11 requests to load all elements on the main page. We found that all of those requests were addressed to Rosuchebnik.ru and no external sources were called. The less responsive or slowest element that took the longest time to load (2.7 sec) belongs to the original domain Rosuchebnik.ru.
Page size can be reduced by 7.2 kB (9%)
81.3 kB
74.1 kB
In fact, the total size of Rosuchebnik.ru main page is 81.3 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. Only 10% of websites need less resources to load. Images take 77.5 kB which makes up the majority of the site volume.
Potential reduce by 1.9 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 1.9 kB or 64% of the original size.
Potential reduce by 5.2 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. Rosuchebnik images are well optimized though.
Potential reduce by 51 B
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. Rosuchebnik.ru has all CSS files already compressed.
We found no issues to fix!
9
9
The browser has sent 9 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Rosuchebnik. According to our analytics all requests are already optimized.
rosuchebnik.ru
520 ms
rosuchebnik.ru
2706 ms
style.css
91 ms
ie.jpg
236 ms
op.jpg
457 ms
mf.jpg
398 ms
gc.jpg
490 ms
as.jpg
411 ms
h.jpg
430 ms
bg_span_wol.gif
418 ms
f.jpg
485 ms
rosuchebnik.ru accessibility score
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
Buttons do not have an accessible name
Links do not have a discernible name
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
rosuchebnik.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
Missing source maps for large first-party JavaScript
rosuchebnik.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
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Rosuchebnik.ru can be misinterpreted by Google and other search engines. Our service has detected that Russian is used on the page, and it does not match the claimed English language. Our system also found out that Rosuchebnik.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.
rosuchebnik.ru
Open Graph description is not detected on the main page of Rosuchebnik. 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: