3.9 sec in total
1.1 sec
2.7 sec
162 ms
Click here to check amazing Osclass content for Ukraine. Otherwise, check out these important facts you probably never knew about os-class.ru
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Visit os-class.ruWe analyzed Os-class.ru page load time and found that the first response time was 1.1 sec and then it took 2.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.
os-class.ru performance score
name
value
score
weighting
Value3.3 s
39/100
10%
Value7.0 s
6/100
25%
Value7.0 s
32/100
10%
Value130 ms
96/100
30%
Value0
100/100
15%
Value6.9 s
53/100
10%
1052 ms
190 ms
324 ms
325 ms
335 ms
Our browser made a total of 61 requests to load all elements on the main page. We found that 43% of them (26 requests) were addressed to the original Os-class.ru, 13% (8 requests) were made to Google.com and 8% (5 requests) were made to Pagead2.googlesyndication.com. The less responsive or slowest element that took the longest time to load (1.3 sec) belongs to the original domain Os-class.ru.
Page size can be reduced by 310.7 kB (58%)
539.2 kB
228.5 kB
In fact, the total size of Os-class.ru main page is 539.2 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. 50% of websites need less resources to load. Javascripts take 204.9 kB which makes up the majority of the site volume.
Potential reduce by 50.4 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 50.4 kB or 81% of the original size.
Potential reduce by 4.5 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. Osclass images are well optimized though.
Potential reduce by 97.7 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 97.7 kB or 48% of the original size.
Potential reduce by 158.1 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. Os-class.ru needs all CSS files to be minified and compressed as it can save up to 158.1 kB or 83% of the original size.
Number of requests can be reduced by 34 (63%)
54
20
The browser has sent 54 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Osclass. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 25 to 1 for JavaScripts and from 11 to 1 for CSS and as a result speed up the page load time.
os-class.ru
1052 ms
wp-emoji-release.min.js
190 ms
colorbox.css
324 ms
jquery-colorbox-zoom.css
325 ms
wp-filebase.css
335 ms
pagenavi-css.css
326 ms
css
26 ms
style.css
346 ms
bootstrap.min.css
517 ms
bootstrap-theme.min.css
480 ms
style.css
494 ms
jquery-1.10.1.min.js
5 ms
jquery.form.min.js
503 ms
script.js
515 ms
jquery.colorbox-min.js
651 ms
jquery-colorbox-wrapper-min.js
654 ms
bootstrap.min.js
656 ms
jquery.ipt-kb-bootstrap.js
662 ms
jquery.sticky-kit.min.js
681 ms
ipt-kb.js
676 ms
show_ads.js
6 ms
skip-link-focus-fix.js
852 ms
comment-reply.min.js
1292 ms
wp-embed.min.js
854 ms
big.jpg
326 ms
cropped-logo.png
187 ms
ninja.png
195 ms
cse.js
16 ms
cse.js
144 ms
QHD8zigcbDB8aPfIoaupKOvvDin1pK8aKteLpeZ5c0A.ttf
44 ms
d-6IYplOFocCacKzxwXSOCZ2oysoEQEeKwjgmXLRnTc.ttf
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ca-pub-7081971229712939.js
109 ms
zrt_lookup.html
117 ms
show_ads_impl.js
65 ms
ipt-icomoon.ttf
737 ms
lXoKq2PC8Z_S1wl-BwvrB-vvDin1pK8aKteLpeZ5c0A.ttf
49 ms
glyphicons-halflings-regular.woff
447 ms
hit
284 ms
ads
353 ms
osd.js
18 ms
ads
348 ms
jsapi
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default+ru.css
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default+ru.I.js
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shiny.css
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abg.js
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m_js_controller.js
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googlelogo_color_112x36dp.png
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x_button_blue2.png
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favicon
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nessie_icon_tiamat_white.png
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reformal.js
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async-ads.js
107 ms
google_custom_search_watermark.gif
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cse_theme_shiny_form_bg.png
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small-logo.png
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clear.gif
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nav_logo114.png
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E4WYPs_lNJIuXrWpTsOcc3FIG36RfI0ERc0srw5QW9Y.js
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os-class.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
os-class.ru best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
General
Impact
Issue
Detected JavaScript libraries
os-class.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
RU
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Os-class.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 Os-class.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.
os-class.ru
Open Graph description is not detected on the main page of Osclass. 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: