48.5 sec in total
5.2 sec
43.2 sec
149 ms
Visit vaillant.com.cn now to see the best up-to-date Vaillant content for China and also check out these interesting facts you probably never knew about vaillant.com.cn
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Visit vaillant.com.cnWe analyzed Vaillant.com.cn page load time and found that the first response time was 5.2 sec and then it took 43.3 sec to load all DOM resources and completely render a web page. This is an excellent result, as only a small number of websites can load faster. Unfortunately, there were 34 request timeouts, which can generally increase the web page load time, as the browser stays idle while waiting for website response.
vaillant.com.cn performance score
name
value
score
weighting
Value1.9 s
87/100
10%
Value7.4 s
4/100
25%
Value8.5 s
17/100
10%
Value30 ms
100/100
30%
Value0.779
5/100
15%
Value5.6 s
69/100
10%
5152 ms
7122 ms
3513 ms
18916 ms
3834 ms
Our browser made a total of 68 requests to load all elements on the main page. We found that 79% of them (54 requests) were addressed to the original Vaillant.com.cn, 7% (5 requests) were made to Image.vaillant.com.cn and 6% (4 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (20.2 sec) belongs to the original domain Vaillant.com.cn.
Page size can be reduced by 107.3 kB (26%)
413.2 kB
305.9 kB
In fact, the total size of Vaillant.com.cn main page is 413.2 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. 15% of websites need less resources to load. Images take 291.8 kB which makes up the majority of the site volume.
Potential reduce by 30.9 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. This page needs HTML code to be minified as it can gain 12.0 kB, which is 32% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 30.9 kB or 81% of the original size.
Potential reduce by 34.8 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, Vaillant needs image optimization as it can save up to 34.8 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 35.7 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 35.7 kB or 48% of the original size.
Potential reduce by 5.9 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. Vaillant.com.cn needs all CSS files to be minified and compressed as it can save up to 5.9 kB or 72% of the original size.
Number of requests can be reduced by 9 (27%)
33
24
The browser has sent 33 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Vaillant. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 10 to 1 for JavaScripts and as a result speed up the page load time.
vaillant.com.cn
5152 ms
global.css
7122 ms
index.css
3513 ms
jquery-1.2.4b.js
18916 ms
topnavigation.js
3834 ms
googletag.js
811 ms
Common.js
4298 ms
notmouse.js
2399 ms
banner.js
2337 ms
20150930.jpg
19983 ms
20150723182133890884.gif
1225 ms
201112141131526117316.gif
1377 ms
qrcode.jpg
2331 ms
qrcode.png
2861 ms
logo.gif
487 ms
headtel.gif
3107 ms
0330.jpg
20235 ms
designer2016.jpg
20120 ms
calc.jpg
20234 ms
20150615.jpg
20233 ms
20150602.jpg
20234 ms
20150520.jpg
16549 ms
20150518.jpg
20232 ms
vaillantstory.jpg
20233 ms
news_title.gif
20232 ms
commendtopic_title.gif
20233 ms
buys_title.gif
20233 ms
buyservices.gif
20234 ms
buyproducts.gif
20233 ms
weibo.gif
20234 ms
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1672 ms
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20233 ms
20160126144816152173.jpg
5435 ms
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20234 ms
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1879 ms
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4334 ms
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2850 ms
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9718 ms
line01.gif
20209 ms
line02.gif
20209 ms
headsearch_bg.gif
20209 ms
c.gif
20208 ms
input_bg1.gif
20209 ms
topnavigation_bg.gif
20208 ms
line03.gif
20208 ms
arrow02.gif
20209 ms
arrow01.gif
20208 ms
subnav_bg.gif
20208 ms
leftarrow2.gif
20208 ms
rightarrow2.gif
20208 ms
main_bg.gif
20195 ms
line04.gif
20194 ms
mainchannel_bg.jpg
20194 ms
arrow03.gif
20193 ms
news_bg.gif
20194 ms
arrow04.gif
20194 ms
ga.js
34 ms
h.js
666 ms
__utm.gif
15 ms
commendtopic_bg.gif
19759 ms
21.gif
938 ms
hm.gif
347 ms
gtm.js
64 ms
analytics.js
5 ms
collect
14 ms
buys_bg.gif
19905 ms
footnavlist_bg.gif
18142 ms
vaillant.com.cn 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.
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
Image elements do not have [alt] attributes
Links do not have a discernible name
vaillant.com.cn 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
General
Impact
Issue
Detected JavaScript libraries
vaillant.com.cn SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Image elements do not have [alt] attributes
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
ZH
N/A
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Vaillant.com.cn can be misinterpreted by Google and other search engines. Our service has detected that Chinese 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 Vaillant.com.cn 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.
vaillant.com.cn
Open Graph description is not detected on the main page of Vaillant. 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: