3.7 sec in total
426 ms
2.9 sec
386 ms
Welcome to sema-gmbh.de homepage info - get ready to check Sema G MbH best content for Germany right away, or after learning these important things about sema-gmbh.de
Films for bird protection at windows, UVA sun protection film, UV/VIS laminated glass and special chemicals
Visit sema-gmbh.deWe analyzed Sema-gmbh.de page load time and found that the first response time was 426 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 60% of websites can load faster.
sema-gmbh.de performance score
name
value
score
weighting
Value4.9 s
11/100
10%
Value8.7 s
1/100
25%
Value8.8 s
15/100
10%
Value850 ms
34/100
30%
Value0.024
100/100
15%
Value11.2 s
20/100
10%
426 ms
223 ms
223 ms
336 ms
338 ms
Our browser made a total of 33 requests to load all elements on the main page. We found that 3% of them (1 request) were addressed to the original Sema-gmbh.de, 91% (30 requests) were made to Sema-gmbh.com and 6% (2 requests) were made to Ssl.google-analytics.com. The less responsive or slowest element that took the longest time to load (914 ms) relates to the external source Sema-gmbh.com.
Page size can be reduced by 58.4 kB (3%)
1.9 MB
1.8 MB
In fact, the total size of Sema-gmbh.de main page is 1.9 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. 40% of websites need less resources to load. Images take 968.7 kB which makes up the majority of the site volume.
Potential reduce by 57.6 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 57.6 kB or 80% of the original size.
Potential reduce by 286 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. Sema G MbH images are well optimized though.
Potential reduce by 88 B
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. This website has mostly compressed JavaScripts.
Potential reduce by 402 B
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. Sema-gmbh.de has all CSS files already compressed.
Number of requests can be reduced by 9 (31%)
29
20
The browser has sent 29 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sema G MbH. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 6 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.
sema-gmbh.de
426 ms
223 ms
font-awesome.min.css
223 ms
font-awesome.min.css
336 ms
font-awesome-5.min.css
338 ms
omgf-stylesheet-360.css
334 ms
wpo-minify-header-e021b297.min.css
914 ms
wpo-minify-header-d41b457c.min.js
792 ms
wpo-minify-footer-cf689dc2.min.js
472 ms
wpo-minify-footer-74d10fea.min.js
473 ms
wp-mediaelement.min.js
341 ms
wpo-minify-footer-b365a2cd.min.js
808 ms
sema-logo.png
124 ms
close_side_menu_dark.png
125 ms
sema-logo-coloured1.png
124 ms
sema-logo-light.png
126 ms
sema-logo-dark.png
125 ms
sema-logo-coloured-a.jpg
124 ms
sema-logo-light-s.png
225 ms
Tropfen_0624_gross-1.jpg
336 ms
Forschung_0624_gross-1.jpg
667 ms
UV_IR_Mohnwiese06240.jpg
666 ms
Vogelschutz_0624.jpg
445 ms
sema-uv-schutzfolie-fluoreszenzspektrometer-1.jpg
226 ms
sema-pro-bird-laborantin-21.jpg
336 ms
sema-uv-absorber-laborantin-1.jpg
337 ms
sema-gmbh-64-prozent.jpg
448 ms
sema-gmbh-75-prozent.jpg
453 ms
sema-gmbh-98-prozent.jpg
453 ms
ga.js
74 ms
fontawesome-webfont.woff
463 ms
fontawesome-webfont.woff
469 ms
__utm.gif
17 ms
sema-gmbh.de 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
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.
sema-gmbh.de 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
Browser errors were logged to the console
Missing source maps for large first-party JavaScript
sema-gmbh.de 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
EN
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Sema-gmbh.de 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 Sema-gmbh.de 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.
sema-gmbh.de
Open Graph data is detected on the main page of Sema G MbH. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: