2.2 sec in total
284 ms
1.6 sec
302 ms
Visit certuss.com now to see the best up-to-date CERTUSS content and also check out these interesting facts you probably never knew about certuss.com
Dampferzeuger der neuesten Generation: Schnelldampferzeuger von CERTUSS stehen weltweit für kompakte, sichere und effiziente Dampfkessel, Tel. 02151 578-0
Visit certuss.comWe analyzed Certuss.com page load time and found that the first response time was 284 ms and then it took 1.9 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 35% of websites can load faster.
certuss.com performance score
name
value
score
weighting
Value2.4 s
70/100
10%
Value10.4 s
0/100
25%
Value9.3 s
13/100
10%
Value5,880 ms
0/100
30%
Value0.527
14/100
15%
Value11.1 s
20/100
10%
284 ms
428 ms
90 ms
178 ms
184 ms
Our browser made a total of 42 requests to load all elements on the main page. We found that 88% of them (37 requests) were addressed to the original Certuss.com, 5% (2 requests) were made to Ajax.googleapis.com and 5% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (592 ms) belongs to the original domain Certuss.com.
Page size can be reduced by 209.6 kB (35%)
596.8 kB
387.2 kB
In fact, the total size of Certuss.com main page is 596.8 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. 40% of websites need less resources to load. Images take 329.1 kB which makes up the majority of the site volume.
Potential reduce by 32.4 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 32.4 kB or 84% of the original size.
Potential reduce by 7.4 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. CERTUSS images are well optimized though.
Potential reduce by 89.9 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 89.9 kB or 67% of the original size.
Potential reduce by 79.8 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. Certuss.com needs all CSS files to be minified and compressed as it can save up to 79.8 kB or 84% of the original size.
Number of requests can be reduced by 21 (53%)
40
19
The browser has sent 40 CSS, Javascripts, AJAX and image requests in order to completely render the main page of CERTUSS. 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.
certuss.com
284 ms
www.certuss.com
428 ms
stylesheet_efe7bffbfe.css
90 ms
df_tabs.css
178 ms
owl.carousel.css
184 ms
responsive-tables.css
184 ms
reset.css
178 ms
default.css
179 ms
grid.css
182 ms
styles.css
268 ms
df_tabs.css
265 ms
sr_freecap.css
267 ms
tt_news.css
273 ms
modernizr.custom.js
274 ms
picturefill.min.js
272 ms
respond.min.js
31 ms
jquery.min.js
32 ms
owl.carousel.min.js
360 ms
jquery-ui.min.js
47 ms
jquery.document.ready.js
386 ms
responsive-tables.js
406 ms
jquery.rwdImageMaps.min.js
384 ms
jquery.tabs.js
386 ms
mobilemenu.js
386 ms
sprite.svg
246 ms
transparent-white.png
150 ms
csm_universal_tc_ec7a3f6fd6.jpg
150 ms
csm_universal_587c5d4d24.jpg
166 ms
csm_Junior_TC_Homepage_4dd14481d1.jpg
167 ms
csm_elektro_aa650603a6.jpg
173 ms
csm_komponenten_557ebcbf67.jpg
236 ms
kessel.png
592 ms
header.jpg
326 ms
ul_li.png
254 ms
sitemap_a.png
267 ms
planerfond1.png
411 ms
service_bgk.png
503 ms
planerfond.png
422 ms
analytics.js
8 ms
previous.png
211 ms
next.png
272 ms
collect
52 ms
certuss.com accessibility score
ARIA
These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.
Impact
Issue
[role]s are not contained by their required parent element
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
certuss.com best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
certuss.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
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
DE
N/A
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Certuss.com can be misinterpreted by Google and other search engines. Our service has detected that German is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Certuss.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.
certuss.com
Open Graph description is not detected on the main page of CERTUSS. 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: