1.2 sec in total
99 ms
868 ms
280 ms
Welcome to jb.fm homepage info - get ready to check JB best content for Brazil right away, or after learning these important things about jb.fm
Ouça a JB FM no Dial 99,9 FM no Rio de Janeiro e através do site e App em qualquer lugar do Mundo. JBFM - Músicas, notícias, podcasts e promoções
Visit jb.fmWe analyzed Jb.fm page load time and found that the first response time was 99 ms and then it took 1.1 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 20% of websites can load faster.
jb.fm performance score
name
value
score
weighting
Value3.6 s
32/100
10%
Value27.6 s
0/100
25%
Value13.4 s
2/100
10%
Value2,430 ms
5/100
30%
Value0.159
73/100
15%
Value24.2 s
0/100
10%
99 ms
57 ms
73 ms
75 ms
40 ms
Our browser made a total of 87 requests to load all elements on the main page. We found that 59% of them (51 requests) were addressed to the original Jb.fm, 9% (8 requests) were made to Fonts.gstatic.com and 8% (7 requests) were made to Tpc.googlesyndication.com. The less responsive or slowest element that took the longest time to load (589 ms) belongs to the original domain Jb.fm.
Page size can be reduced by 389.6 kB (24%)
1.6 MB
1.2 MB
In fact, the total size of Jb.fm main page is 1.6 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. 65% of websites need less resources to load. Images take 1.3 MB which makes up the majority of the site volume.
Potential reduce by 31.7 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 31.7 kB or 76% of the original size.
Potential reduce by 124.2 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. JB images are well optimized though.
Potential reduce by 116.4 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 116.4 kB or 59% of the original size.
Potential reduce by 117.4 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. Jb.fm needs all CSS files to be minified and compressed as it can save up to 117.4 kB or 83% of the original size.
Number of requests can be reduced by 24 (31%)
78
54
The browser has sent 78 CSS, Javascripts, AJAX and image requests in order to completely render the main page of JB. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 16 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.
jb.fm
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jb.fm 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
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
jb.fm 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
Issues were logged in the Issues panel in Chrome Devtools
jb.fm 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
PT
PT
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Jb.fm can be misinterpreted by Google and other search engines. Our service has detected that Portuguese is used on the page, and it matches the claimed language. Our system also found out that Jb.fm 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.
jb.fm
Open Graph description is not detected on the main page of JB. 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: