3.5 sec in total
206 ms
3 sec
374 ms
Welcome to janssenpharmaceutica.be homepage info - get ready to check Janssen Pharmaceutica best content right away, or after learning these important things about janssenpharmaceutica.be
Explore Janssen’s innovative medical research & pharmaceutical product development practices to see how Janssen is creating a future where disease is a thing of the past.
Visit janssenpharmaceutica.beWe analyzed Janssenpharmaceutica.be page load time and found that the first response time was 206 ms and then it took 3.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.
janssenpharmaceutica.be performance score
name
value
score
weighting
Value5.5 s
6/100
10%
Value12.8 s
0/100
25%
Value7.5 s
27/100
10%
Value2,270 ms
6/100
30%
Value1.125
1/100
15%
Value16.6 s
5/100
10%
206 ms
1069 ms
156 ms
159 ms
163 ms
Our browser made a total of 52 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Janssenpharmaceutica.be, 92% (48 requests) were made to Janssen.com and 4% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (1.1 sec) relates to the external source Janssen.com.
Page size can be reduced by 1.7 MB (26%)
6.4 MB
4.7 MB
In fact, the total size of Janssenpharmaceutica.be main page is 6.4 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. 65% of websites need less resources to load. Images take 4.6 MB which makes up the majority of the site volume.
Potential reduce by 62.2 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 8.5 kB, which is 11% 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 62.2 kB or 82% of the original size.
Potential reduce by 95.9 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. Janssen Pharmaceutica images are well optimized though.
Potential reduce by 569.0 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 569.0 kB or 81% of the original size.
Potential reduce by 953.9 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. Janssenpharmaceutica.be needs all CSS files to be minified and compressed as it can save up to 953.9 kB or 93% of the original size.
Number of requests can be reduced by 10 (20%)
50
40
The browser has sent 50 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Janssen Pharmaceutica. 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 from 4 to 1 for CSS and as a result speed up the page load time.
janssenpharmaceutica.be
206 ms
www.janssen.com
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janssenpharmaceutica.be 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
Image elements do not have [alt] attributes
Links do not have a discernible name
Best practices
These items highlight common accessibility best practices.
Impact
Issue
[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.
janssenpharmaceutica.be 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
janssenpharmaceutica.be SEO score
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Links do not have descriptive text
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
EN
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Janssenpharmaceutica.be can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that Janssenpharmaceutica.be 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.
janssenpharmaceutica.be
Open Graph description is not detected on the main page of Janssen Pharmaceutica. 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: