6.3 sec in total
932 ms
5.1 sec
302 ms
Click here to check amazing Otb content for Belarus. Otherwise, check out these important facts you probably never knew about otb.by
Все об охране труда, гигиене труда, пожарной безопасности и промышленной безопасности
Visit otb.byWe analyzed Otb.by page load time and found that the first response time was 932 ms and then it took 5.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.
otb.by performance score
name
value
score
weighting
Value4.9 s
10/100
10%
Value4.9 s
28/100
25%
Value7.9 s
22/100
10%
Value1,260 ms
19/100
30%
Value0.185
66/100
15%
Value13.1 s
12/100
10%
932 ms
124 ms
252 ms
356 ms
370 ms
Our browser made a total of 99 requests to load all elements on the main page. We found that 74% of them (73 requests) were addressed to the original Otb.by, 5% (5 requests) were made to Site.yandex.net and 4% (4 requests) were made to Pagead2.googlesyndication.com. The less responsive or slowest element that took the longest time to load (1.1 sec) belongs to the original domain Otb.by.
Page size can be reduced by 466.7 kB (31%)
1.5 MB
1.1 MB
In fact, the total size of Otb.by main page is 1.5 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. 50% of websites need less resources to load. Javascripts take 785.2 kB which makes up the majority of the site volume.
Potential reduce by 76.3 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 14.5 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 76.3 kB or 80% of the original size.
Potential reduce by 51.6 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. Otb images are well optimized though.
Potential reduce by 333.0 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 333.0 kB or 42% of the original size.
Potential reduce by 5.7 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. Otb.by has all CSS files already compressed.
Number of requests can be reduced by 70 (74%)
94
24
The browser has sent 94 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Otb. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 40 to 1 for JavaScripts and from 26 to 1 for CSS and as a result speed up the page load time.
otb.by
932 ms
modal.css
124 ms
style.css
252 ms
style.css
356 ms
content.css
370 ms
jf_menu.css
371 ms
grid-responsive.css
374 ms
bootstrap.css
506 ms
master.css
413 ms
jf_custom_style-cc74cc7f1c6aa251752cba6087e1e084.css
473 ms
mediaqueries.css
493 ms
088cf51372.css
97 ms
jf_typo_00_base.css
493 ms
jf_typo_01_core.css
494 ms
jf_typo_bs_tooltips_31.css
535 ms
jf_mm.min.css
590 ms
cookie.css
616 ms
responsive.css
616 ms
module_default.css
617 ms
style-modules.min.css
650 ms
style.css
656 ms
style.min.css
709 ms
bootstrap.css
873 ms
fontawesome.css
750 ms
template.css
754 ms
mod_jf_login.min.css
772 ms
mootools-core.js
854 ms
core.js
825 ms
mootools-more.js
1108 ms
modal.js
913 ms
jquery.min.js
981 ms
jquery-noconflict.js
942 ms
jquery-migrate.min.js
980 ms
caption.js
991 ms
headroom.min.js
1006 ms
jQuery.headroom.min.js
1059 ms
jf_typo_bs_tooltips_v31.min.js
1145 ms
238689eaae8fffb8c607ce0226cc9650_1.js
190 ms
adsbygoogle.js
104 ms
jf.min.js
1102 ms
font-awesome-css.min.css
15 ms
browser-engines.js
1033 ms
rokmediaqueries.js
907 ms
rokmediaqueries.js
834 ms
responsive.js
869 ms
responsive-selectbox.js
868 ms
jquery.jf_multilevelpushmenu.min.js
880 ms
jf_mm.min.js
829 ms
cookie_script.js
790 ms
acymailing_module.js
817 ms
bootloader.js
869 ms
tiny-slider.min.js
893 ms
keepalive.js
861 ms
mod_jf_login.min.js
840 ms
module-5.0.21.static.min.js
1082 ms
tag.js
893 ms
88x31.png
126 ms
logo.png
140 ms
spravochnik_sot.jpg
139 ms
slovar_terminov.jpg
137 ms
chislennost-sot.jpg
138 ms
rassilka.jpg
137 ms
premija.jpg
282 ms
ispolkom.jpg
283 ms
exot.png
369 ms
field.jpg
409 ms
kk.jpg
335 ms
stroi-sk.jpg
392 ms
buvini3.gif
444 ms
icon_topic_latest.gif
393 ms
show_ads_impl.js
396 ms
88x31.png
136 ms
all.js
868 ms
fontawesome-webfont.woff
541 ms
fontawesome-webfont.woff
493 ms
fontawesome-webfont.woff
35 ms
b2ap3_large_chernobl.jpg
822 ms
b2ap3_large_groza.jpg
529 ms
b2ap3_large_jurisdiction-g.jpg
401 ms
arrow-l.png
311 ms
arrow-r.png
432 ms
zrt_lookup.html
36 ms
ads
88 ms
ca-pub-2273569380498266
82 ms
advert.gif
679 ms
jquery.min.js
497 ms
suggest.js
98 ms
opensearch.js
202 ms
yandex-hint-rb.png
265 ms
sync_cookie_image_decide
141 ms
punycode.js
92 ms
sync_cookie_image_decide
138 ms
ratings.js
125 ms
sodar
78 ms
sodar2.js
19 ms
runner.html
10 ms
aframe
42 ms
stars.min.js
125 ms
wJiNEMIFAPB28UFvxM_UYtYFK_ILnv1_rxRzUTsn-Pg.js
4 ms
otb.by accessibility score
ARIA
These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.
Impact
Issue
[aria-hidden="true"] elements contain focusable descendents
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
Heading elements are not in a sequentially-descending order
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
Form elements do not have associated labels
Links do not have a discernible name
otb.by 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
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
Page has valid source maps
otb.by 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
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RU
![]()
RU
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Otb.by 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 Otb.by 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.
otb.by
Open Graph description is not detected on the main page of Otb. 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: