5.3 sec in total
724 ms
4.1 sec
498 ms
Welcome to lermontovka-spb.ru homepage info - get ready to check Lermontovka Spb best content for Russia right away, or after learning these important things about lermontovka-spb.ru
Межрайонная централизованная библиотечная система им. М.Ю. Лермонтова объединяет 14 библиотек, расположенных в Центральном и Адмиралтейском районах Санкт-Петербурга.
Visit lermontovka-spb.ruWe analyzed Lermontovka-spb.ru page load time and found that the first response time was 724 ms and then it took 4.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.
lermontovka-spb.ru performance score
name
value
score
weighting
Value3.4 s
37/100
10%
Value7.4 s
4/100
25%
Value6.3 s
42/100
10%
Value150 ms
94/100
30%
Value0
100/100
15%
Value10.2 s
25/100
10%
724 ms
291 ms
266 ms
261 ms
437 ms
Our browser made a total of 58 requests to load all elements on the main page. We found that 91% of them (53 requests) were addressed to the original Lermontovka-spb.ru, 3% (2 requests) were made to Google-analytics.com and 2% (1 request) were made to Yandex.st. The less responsive or slowest element that took the longest time to load (3 sec) belongs to the original domain Lermontovka-spb.ru.
Page size can be reduced by 146.5 kB (19%)
783.5 kB
636.9 kB
In fact, the total size of Lermontovka-spb.ru main page is 783.5 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. 40% of websites need less resources to load. Images take 587.9 kB which makes up the majority of the site volume.
Potential reduce by 23.5 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 23.5 kB or 76% of the original size.
Potential reduce by 11.8 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. Lermontovka Spb images are well optimized though.
Potential reduce by 1.7 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. This website has mostly compressed JavaScripts.
Potential reduce by 109.5 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. Lermontovka-spb.ru needs all CSS files to be minified and compressed as it can save up to 109.5 kB or 83% of the original size.
Number of requests can be reduced by 18 (33%)
55
37
The browser has sent 55 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Lermontovka Spb. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and as a result speed up the page load time.
lermontovka-spb.ru
724 ms
bootstrap.min.css
291 ms
lightbox.css
266 ms
style.min.css
261 ms
jquery.min.js
437 ms
bootstrap.min.js
265 ms
lightbox.js
264 ms
audio.min.js
426 ms
script.min.js
427 ms
tour.js
472 ms
share.js
132 ms
ga.js
228 ms
watch.js
110 ms
logo.png
418 ms
building.png
195 ms
search.png
226 ms
deco2a.png
227 ms
deco2n.png
228 ms
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442 ms
pilinks.png
258 ms
deco3f.png
300 ms
deco4.png
300 ms
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433 ms
preload.png
383 ms
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522 ms
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643 ms
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637 ms
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835 ms
alexander_skidan_mini_event.jpg
649 ms
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550 ms
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747 ms
arrow1l.png
671 ms
arrow1r.png
747 ms
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891 ms
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753 ms
%D0%B7%D1%83%D0%BB%D0%B5%D0%B9%D1%85%D0%B0_cover.jpg
821 ms
akunin_cover.jpg
1080 ms
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898 ms
kak_cover.jpg
1104 ms
houellebecq_cover.jpg
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astv_cover.jpg
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lee_cover.jpg
1606 ms
ulit_cover.jpg
1101 ms
lermontov_bkg_ban.jpg
2986 ms
coll1.jpg
1882 ms
coll3.jpg
1384 ms
bnl_2_large.jpg
1473 ms
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1751 ms
arrow2.png
1548 ms
__utm.gif
32 ms
vkontakte.png
1494 ms
facebook.png
1519 ms
twitter.png
1614 ms
ksob.jpg
1734 ms
collect
125 ms
no_korr4.jpg
1824 ms
loading.gif
1764 ms
close.png
1685 ms
lermontovka-spb.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
<input type="image"> elements do not have [alt] text
Links do not have a discernible name
lermontovka-spb.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
Page has valid source maps
Issues were logged in the Issues panel in Chrome Devtools
lermontovka-spb.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 Lermontovka-spb.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 Lermontovka-spb.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.
lermontovka-spb.ru
Open Graph description is not detected on the main page of Lermontovka Spb. 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: