2.6 sec in total
389 ms
2 sec
147 ms
Welcome to ost.lu homepage info - get ready to check OST best content for Luxembourg right away, or after learning these important things about ost.lu
OST Fenster steet fir traditionell handwierklech Qualitéit an innovatiivt Plangen bei der Hirstellung vu Fënsteren, Hausdieren a Glasfassaden.
Visit ost.luWe analyzed Ost.lu page load time and found that the first response time was 389 ms and then it took 2.2 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 40% of websites can load faster.
ost.lu performance score
name
value
score
weighting
Value5.0 s
10/100
10%
Value16.1 s
0/100
25%
Value14.4 s
1/100
10%
Value1,620 ms
12/100
30%
Value0.081
94/100
15%
Value18.5 s
3/100
10%
389 ms
496 ms
96 ms
185 ms
186 ms
Our browser made a total of 47 requests to load all elements on the main page. We found that 94% of them (44 requests) were addressed to the original Ost.lu, 4% (2 requests) were made to Google-analytics.com and 2% (1 request) were made to Ajax.aspnetcdn.com. The less responsive or slowest element that took the longest time to load (724 ms) belongs to the original domain Ost.lu.
Page size can be reduced by 161.9 kB (54%)
301.9 kB
140.0 kB
In fact, the total size of Ost.lu main page is 301.9 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 30% of websites need less resources to load. Javascripts take 159.6 kB which makes up the majority of the site volume.
Potential reduce by 9.7 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 9.7 kB or 73% of the original size.
Potential reduce by 5.7 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. Obviously, OST needs image optimization as it can save up to 5.7 kB or 12% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
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 47% of the original size.
Potential reduce by 72.0 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. Ost.lu needs all CSS files to be minified and compressed as it can save up to 72.0 kB or 88% of the original size.
Number of requests can be reduced by 16 (36%)
45
29
The browser has sent 45 CSS, Javascripts, AJAX and image requests in order to completely render the main page of OST. 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.
ost.lu
389 ms
www.ost.lu
496 ms
standard.css
96 ms
stylesheet_f10c897b38.css
185 ms
wtgallery_main.css
186 ms
jquery-1.4.4.min.js
282 ms
jquery-1.6.2.min.js
84 ms
jquery.fancybox.pack.js
187 ms
jquery.accordion.js
186 ms
jquery.imagecycle.js
184 ms
common.js
273 ms
javascript_0b12553063.js
274 ms
bg.gif
93 ms
start_header_bg.png
93 ms
Krone.png
100 ms
Produktzeile.png
100 ms
start_logo.png
93 ms
start_langnav_bg_off.gif
94 ms
content_bg.png
179 ms
big_bg.png
183 ms
3353d70399.jpg
365 ms
65358a1e3f.jpg
365 ms
bd269c3a0a.jpg
275 ms
big_tab_first_normal.png
186 ms
cp.gif
270 ms
8567921053.png
274 ms
103727796c.jpg
368 ms
big_tab_normal.png
361 ms
b773841d19.png
365 ms
f5164d38ef.jpg
457 ms
b66428b091.png
452 ms
63fa1a33d7.jpg
545 ms
c825aaa46d.png
456 ms
7788c884d5.jpg
547 ms
d2036b4618.png
458 ms
f2d7666b3f.jpg
724 ms
big_tab_last_normal.png
546 ms
4cb9f8a4c6.png
550 ms
31c8f74f35.png
551 ms
dbcef3be8c.png
636 ms
c5a54e4e2d.jpg
638 ms
footer_bg.png
638 ms
pagenav_divider.gif
643 ms
facebook.png
643 ms
ga.js
14 ms
__utm.gif
12 ms
standard_print.css
94 ms
ost.lu 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
Some elements have a [tabindex] value greater than 0
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
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.
ost.lu 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
Displays images with incorrect aspect ratio
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
Page has valid source maps
ost.lu SEO score
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
LB
DE
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Ost.lu can be misinterpreted by Google and other search engines. Our service has detected that is used on the page, and it does not match the claimed German language. Our system also found out that Ost.lu 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.
ost.lu
Open Graph description is not detected on the main page of OST. 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: