8.3 sec in total
523 ms
7.5 sec
241 ms
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Visit nlb.byWe analyzed Nlb.by page load time and found that the first response time was 523 ms and then it took 7.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.
nlb.by performance score
name
value
score
weighting
Value3.8 s
28/100
10%
Value22.0 s
0/100
25%
Value13.4 s
2/100
10%
Value1,890 ms
9/100
30%
Value0.166
71/100
15%
Value21.3 s
1/100
10%
523 ms
662 ms
3151 ms
322 ms
440 ms
Our browser made a total of 81 requests to load all elements on the main page. We found that 11% of them (9 requests) were addressed to the original Nlb.by, 44% (36 requests) were made to Content.nlb.by and 36% (29 requests) were made to Portal.nlb.by. The less responsive or slowest element that took the longest time to load (3.2 sec) belongs to the original domain Nlb.by.
Page size can be reduced by 389.2 kB (44%)
878.9 kB
489.7 kB
In fact, the total size of Nlb.by main page is 878.9 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. 20% of websites need less resources to load. Images take 706.6 kB which makes up the majority of the site volume.
Potential reduce by 102.9 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. This page needs HTML code to be minified as it can gain 24.6 kB, which is 21% 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 102.9 kB or 86% of the original size.
Potential reduce by 244.2 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. Obviously, Nlb needs image optimization as it can save up to 244.2 kB or 35% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 4.3 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 4.3 kB or 76% of the original size.
Potential reduce by 37.8 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. Nlb.by needs all CSS files to be minified and compressed as it can save up to 37.8 kB or 79% of the original size.
Number of requests can be reduced by 29 (38%)
76
47
The browser has sent 76 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Nlb. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for CSS and as a result speed up the page load time.
nlb.by
523 ms
www.nlb.by
662 ms
index
3151 ms
pobtrans.gif
322 ms
PORTAL.wwsbr_javascript.page_js
440 ms
style.css
1042 ms
style2.css
1039 ms
wblock.css
921 ms
news.css
927 ms
z.gif
926 ms
icon_forums.gif
925 ms
icon_map.gif
1036 ms
book_logo.gif
1042 ms
icon_reg.gif
1041 ms
icon_search.gif
1041 ms
help_icon.gif
1133 ms
pobtrans.gif
297 ms
ek.jpg
736 ms
sek_2.gif
537 ms
menu_icon_i_catalog.gif
500 ms
fong.jpg
499 ms
menu_icon_db.gif
547 ms
picZdabitki430.jpg
500 ms
menu_icon_lib_info.gif
803 ms
menu_icon_document_delivery.gif
773 ms
vcpi.gif
786 ms
unesco.gif
836 ms
vchz_icon.jpg
824 ms
pict4.jpg
1262 ms
banner.jpg
1361 ms
w_triangle.gif
973 ms
clock.gif
1075 ms
address.gif
1082 ms
Flower_2016.JPG
1192 ms
weirdbooks1.jpg
1206 ms
books012.jpg
1213 ms
afish.jpg
1225 ms
Kongress.jpg
1645 ms
img1.jpg
1711 ms
Hrishk_27.jpg
1758 ms
INCLUSE_19.JPG
1723 ms
8m-6.jpg
1726 ms
Shevchenko.jpg
1736 ms
logo_2016.jpg
2157 ms
moda-banner.jpg
2341 ms
school2.jpg
1968 ms
8m-6.jpg
2485 ms
Flower_2016.JPG
2388 ms
Shevchenko.jpg
2595 ms
knigaznauchyia_201650.jpg
2238 ms
TIBO_16.JPG
2430 ms
fdbk_portlets_css.css
858 ms
press72725.jpg
3077 ms
mkrb.gif
518 ms
b.gif
948 ms
belarus_by.gif
1074 ms
liberalization.jpg
1284 ms
125_cep.gif
1040 ms
vchz2.jpg
2738 ms
reklama2.jpg
2966 ms
manuscriptorium.gif
2777 ms
korunb.jpg
2705 ms
vk-nlb.jpg
2746 ms
PORTAL.wwptl_login.show_site2pstoretoken
183 ms
PORTAL.wwptl_login.show_site2pstoretoken
176 ms
w_triangle2.gif
472 ms
green_box.gif
479 ms
under_green.png
448 ms
o.gif
473 ms
left_gradient.gif
547 ms
left_decorlib_blue.gif
642 ms
right_gradient.jpg
647 ms
right_decorlib_green.gif
649 ms
lib_xxx3.gif
643 ms
under_orange.png
724 ms
registerservlet
250 ms
light_decor_blue.gif
540 ms
hit
253 ms
registerservlet
1101 ms
counter2
156 ms
adlik
216 ms
nlb.by 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
Internationalization and localization
These are opportunities to improve the interpretation of your content by users in different locales.
Impact
Issue
<html> element does not have a [lang] attribute
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
<object> elements do not have alternate text
nlb.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
User Experience
Impact
Issue
Displays images with incorrect aspect ratio
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
nlb.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
RU
EN
WINDOWS-1251
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Nlb.by 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 Nlb.by 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.
nlb.by
Open Graph description is not detected on the main page of Nlb. 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: