4.5 sec in total
398 ms
3 sec
1.1 sec
Visit rosenberger-osi.com now to see the best up-to-date Rosenberger OSI content and also check out these interesting facts you probably never knew about rosenberger-osi.com
Expert in innovative fiber optic cabling infrastructure & service solutions. ✓Data center ✓Local networks ✓Industrial
Visit rosenberger-osi.comWe analyzed Rosenberger-osi.com page load time and found that the first response time was 398 ms and then it took 4.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.
rosenberger-osi.com performance score
name
value
score
weighting
Value3.9 s
25/100
10%
Value3.9 s
51/100
25%
Value5.7 s
50/100
10%
Value4,250 ms
1/100
30%
Value0.273
45/100
15%
Value10.3 s
24/100
10%
398 ms
751 ms
207 ms
310 ms
311 ms
Our browser made a total of 74 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Rosenberger-osi.com, 93% (69 requests) were made to Osi.rosenberger.com and 3% (2 requests) were made to Visableleads.com. The less responsive or slowest element that took the longest time to load (812 ms) relates to the external source Osi.rosenberger.com.
Page size can be reduced by 168.6 kB (10%)
1.7 MB
1.5 MB
In fact, the total size of Rosenberger-osi.com main page is 1.7 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. 55% of websites need less resources to load. Images take 1.5 MB which makes up the majority of the site volume.
Potential reduce by 94.2 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. 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 94.2 kB or 82% of the original size.
Potential reduce by 0 B
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. Rosenberger OSI images are well optimized though.
Potential reduce by 74.4 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 74.4 kB or 70% of the original size.
Number of requests can be reduced by 20 (30%)
67
47
The browser has sent 67 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Rosenberger OSI. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 9 to 1 for JavaScripts and from 13 to 1 for CSS and as a result speed up the page load time.
rosenberger-osi.com
398 ms
osi.rosenberger.com
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rosenberger-osi.com accessibility score
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
Buttons do not have an accessible name
Links do not have a discernible name
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
rosenberger-osi.com best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
User Experience
Impact
Issue
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
rosenberger-osi.com 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
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
EN
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Rosenberger-osi.com 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 Rosenberger-osi.com 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.
rosenberger-osi.com
Open Graph data is detected on the main page of Rosenberger OSI. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: