55.1 sec in total
5 sec
49.4 sec
622 ms
Welcome to webinar.instrument.com.cn homepage info - get ready to check Webinar Instrument best content for China right away, or after learning these important things about webinar.instrument.com.cn
网络讲堂栏目是仪器信息网最新推出的一款优质栏目,将其定义为“科学仪器行业的百家讲坛” ,到2013年1月为止共成功举办近500场网络会议,还有千余个仪器教学视频。
Visit webinar.instrument.com.cnWe analyzed Webinar.instrument.com.cn page load time and found that the first response time was 5 sec and then it took 50 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 was 1 request timeout, which can generally increase the web page load time, as the browser stays idle while waiting for website response.
webinar.instrument.com.cn performance score
name
value
score
weighting
Value15.1 s
0/100
10%
Value49.7 s
0/100
25%
Value45.2 s
0/100
10%
Value670 ms
44/100
30%
Value0.189
65/100
15%
Value55.3 s
0/100
10%
5038 ms
1445 ms
2182 ms
4177 ms
781 ms
Our browser made a total of 197 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original Webinar.instrument.com.cn, 43% (85 requests) were made to Instrument.com.cn and 26% (52 requests) were made to Simg.instrument.com.cn. The less responsive or slowest element that took the longest time to load (19.9 sec) relates to the external source Instrument.com.cn.
Page size can be reduced by 848.3 kB (24%)
3.6 MB
2.7 MB
In fact, the total size of Webinar.instrument.com.cn main page is 3.6 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. 45% of websites need less resources to load. Images take 2.9 MB which makes up the majority of the site volume.
Potential reduce by 81.7 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 81.7 kB or 79% of the original size.
Potential reduce by 376.5 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, Webinar Instrument needs image optimization as it can save up to 376.5 kB or 13% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 321.6 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 321.6 kB or 75% of the original size.
Potential reduce by 68.4 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. Webinar.instrument.com.cn needs all CSS files to be minified and compressed as it can save up to 68.4 kB or 78% of the original size.
Number of requests can be reduced by 74 (41%)
182
108
The browser has sent 182 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Webinar Instrument. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 27 to 1 for JavaScripts and from 21 to 1 for CSS and as a result speed up the page load time.
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webinar.instrument.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
<frame> or <iframe> elements do not have a title
Image elements do not have [alt] attributes
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.
webinar.instrument.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
Browser errors were logged to the console
Page has valid source maps
webinar.instrument.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
ZH
N/A
GB2312
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Webinar.instrument.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 Webinar.instrument.com.cn 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.
{{og_description}}
webinar.instrument.com.cn
Open Graph description is not detected on the main page of Webinar Instrument. 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: