3.6 sec in total
310 ms
2.5 sec
821 ms
Welcome to osi.rosenberger.com homepage info - get ready to check OSI Rosenberger best content for United States right away, or after learning these important things about osi.rosenberger.com
Expert in innovative fiber optic cabling infrastructure & service solutions. ✓Data center ✓Local networks ✓Industrial
Visit osi.rosenberger.comWe analyzed Osi.rosenberger.com page load time and found that the first response time was 310 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.
osi.rosenberger.com performance score
name
value
score
weighting
Value2.9 s
54/100
10%
Value4.3 s
41/100
25%
Value3.8 s
83/100
10%
Value170 ms
93/100
30%
Value0.241
52/100
15%
Value7.3 s
49/100
10%
310 ms
556 ms
192 ms
281 ms
288 ms
Our browser made a total of 74 requests to load all elements on the main page. We found that 86% of them (64 requests) were addressed to the original Osi.rosenberger.com, 4% (3 requests) were made to Googletagmanager.com and 3% (2 requests) were made to Visableleads.com. The less responsive or slowest element that took the longest time to load (810 ms) belongs to the original domain Osi.rosenberger.com.
Page size can be reduced by 179.1 kB (8%)
2.2 MB
2.0 MB
In fact, the total size of Osi.rosenberger.com main page is 2.2 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 1.9 MB which makes up the majority of the site volume.
Potential reduce by 82.0 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 82.0 kB or 80% of the original size.
Potential reduce by 22.7 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. OSI Rosenberger images are well optimized though.
Potential reduce by 74.5 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 74.5 kB or 69% of the original size.
Number of requests can be reduced by 21 (32%)
66
45
The browser has sent 66 CSS, Javascripts, AJAX and image requests in order to completely render the main page of OSI Rosenberger. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 12 to 1 for JavaScripts and from 11 to 1 for CSS and as a result speed up the page load time.
osi.rosenberger.com
310 ms
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Flickity.dist.css
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osi.rosenberger.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
Image elements do not have [alt] attributes
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.
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
osi.rosenberger.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
osi.rosenberger.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
Image elements do not have [alt] attributes
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 Osi.rosenberger.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 Osi.rosenberger.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.
osi.rosenberger.com
Open Graph data is detected on the main page of OSI Rosenberger. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: