8.4 sec in total
836 ms
6.3 sec
1.3 sec
Visit jfc-club.spb.ru now to see the best up-to-date JFC CLUB Spb content for Russia and also check out these interesting facts you probably never knew about jfc-club.spb.ru
JFC JAZZ CLUB. Джазовый клуб в Санкт-Петербурге. Выступление джазовых музыкантов. Ежедневные концерты на Шпалерной 33 : Jazz Friends Club
Visit jfc-club.spb.ruWe analyzed Jfc-club.spb.ru page load time and found that the first response time was 836 ms and then it took 7.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.
jfc-club.spb.ru performance score
name
value
score
weighting
Value3.5 s
35/100
10%
Value10.9 s
0/100
25%
Value5.6 s
53/100
10%
Value890 ms
32/100
30%
Value0.069
96/100
15%
Value7.8 s
45/100
10%
836 ms
24 ms
144 ms
370 ms
1219 ms
Our browser made a total of 105 requests to load all elements on the main page. We found that 66% of them (69 requests) were addressed to the original Jfc-club.spb.ru, 11% (12 requests) were made to Vk.com and 4% (4 requests) were made to Mc.yandex.ru. The less responsive or slowest element that took the longest time to load (4.2 sec) belongs to the original domain Jfc-club.spb.ru.
Page size can be reduced by 806.4 kB (23%)
3.4 MB
2.6 MB
In fact, the total size of Jfc-club.spb.ru main page is 3.4 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. 70% of websites need less resources to load. Images take 2.7 MB which makes up the majority of the site volume.
Potential reduce by 43.8 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 43.8 kB or 82% of the original size.
Potential reduce by 249.1 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. JFC CLUB Spb images are well optimized though.
Potential reduce by 467.1 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 467.1 kB or 72% of the original size.
Potential reduce by 46.4 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. Jfc-club.spb.ru needs all CSS files to be minified and compressed as it can save up to 46.4 kB or 81% of the original size.
Number of requests can be reduced by 22 (21%)
103
81
The browser has sent 103 CSS, Javascripts, AJAX and image requests in order to completely render the main page of JFC CLUB 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 14 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.
jfc-club.spb.ru
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jfc-club.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.
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
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
jfc-club.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
jfc-club.spb.ru 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
RU
N/A
WINDOWS-1251
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Jfc-club.spb.ru can be misinterpreted by Google and other search engines. Our service has detected that Russian is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Jfc-club.spb.ru 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.
jfc-club.spb.ru
Open Graph description is not detected on the main page of JFC CLUB 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: