84.8 sec in total
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79.2 sec
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Visit zmdz.com now to see the best up-to-date Zmdz content for Germany and also check out these interesting facts you probably never knew about zmdz.com
镇江中煤电子有限公司是全国煤炭安全监控系统制造业的知名企业,符合AQ6201-2006煤矿安全新标准,从事煤矿安全监控系统、矿用传感器的研发和生产,新研发和生产了矿用传感器,红外甲烷,红外管道甲烷,二氧化碳,二氧化硫,氢气,氧气,硫化氢
Visit zmdz.comWe analyzed Zmdz.com page load time and found that the first response time was 4.6 sec and then it took 80.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 95% of websites can load faster. Unfortunately, there were 66 request timeouts, which can generally increase the web page load time, as the browser stays idle while waiting for website response.
zmdz.com performance score
name
value
score
weighting
Value1.5 s
96/100
10%
Value14.6 s
0/100
25%
Value5.3 s
58/100
10%
Value0 ms
100/100
30%
Value0.032
100/100
15%
Value1.5 s
100/100
10%
4569 ms
774 ms
2627 ms
401 ms
19602 ms
Our browser made a total of 163 requests to load all elements on the main page. We found that 89% of them (145 requests) were addressed to the original Zmdz.com, 5% (8 requests) were made to Count.knowsky.com and 2% (3 requests) were made to Hm.baidu.com. The less responsive or slowest element that took the longest time to load (20.5 sec) belongs to the original domain Zmdz.com.
Page size can be reduced by 839.6 kB (35%)
2.4 MB
1.5 MB
In fact, the total size of Zmdz.com main page is 2.4 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. 25% of websites need less resources to load. Images take 2.2 MB which makes up the majority of the site volume.
Potential reduce by 188.0 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. This page needs HTML code to be minified as it can gain 24.7 kB, which is 12% 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 188.0 kB or 91% of the original size.
Potential reduce by 638.9 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, Zmdz needs image optimization as it can save up to 638.9 kB or 30% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 12.6 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 12.6 kB or 70% of the original size.
Potential reduce by 0 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.
Number of requests can be reduced by 35 (37%)
95
60
The browser has sent 95 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Zmdz. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and as a result speed up the page load time.
zmdz.com
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zmdz.com 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.
Internationalization and localization
These are opportunities to improve the interpretation of your content by users in different locales.
Impact
Issue
<html> element does not have a [lang] attribute
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
<object> elements do not have alternate text
zmdz.com best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
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
Browser errors were logged to the console
zmdz.com SEO score
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
Document uses plugins
ZH
N/A
GB2312
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Zmdz.com 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 Zmdz.com main page’s claimed encoding is gb2312. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.
zmdz.com
Open Graph description is not detected on the main page of Zmdz. 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: