37.7 sec in total
747 ms
35 sec
1.9 sec
Welcome to vi21.net homepage info - get ready to check Vi 21 best content right away, or after learning these important things about vi21.net
Vi21.Net是最早关注中国当代艺术的新锐门户网站,定位于当代艺术主流新锐媒体,是当代艺术家,画廊,拍卖公司,展览,美术馆,博物馆,双年展,三年展等艺术品公司进行艺术品市场投资,拍卖,收藏,交易,鉴赏的重要平台,同时也为视觉设计艺术爱好者提供日本/欧美/中国人体艺术,艺术摄影,艺术作品/图片,油画作品欣赏, 集各方艺术视野,向世界及时全面地介绍当代中国艺术。
Visit vi21.netWe analyzed Vi21.net page load time and found that the first response time was 747 ms and then it took 36.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 95% of websites can load faster.
vi21.net performance score
name
value
score
weighting
Value3.9 s
24/100
10%
Value4.3 s
42/100
25%
Value8.1 s
21/100
10%
Value40 ms
100/100
30%
Value0
100/100
15%
Value5.8 s
67/100
10%
747 ms
972 ms
629 ms
702 ms
646 ms
Our browser made a total of 110 requests to load all elements on the main page. We found that 77% of them (85 requests) were addressed to the original Vi21.net, 5% (5 requests) were made to Q.qlogo.cn and 4% (4 requests) were made to Static.duoshuo.com. The less responsive or slowest element that took the longest time to load (15.8 sec) relates to the external source Q.qlogo.cn.
Page size can be reduced by 502.4 kB (24%)
2.1 MB
1.6 MB
In fact, the total size of Vi21.net main page is 2.1 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. 50% of websites need less resources to load. Images take 1.5 MB which makes up the majority of the site volume.
Potential reduce by 123.9 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. 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 123.9 kB or 66% of the original size.
Potential reduce by 117.8 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. Vi 21 images are well optimized though.
Potential reduce by 137.9 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 137.9 kB or 63% of the original size.
Potential reduce by 122.8 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. Vi21.net needs all CSS files to be minified and compressed as it can save up to 122.8 kB or 79% of the original size.
Number of requests can be reduced by 28 (26%)
107
79
The browser has sent 107 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Vi 21. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 16 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.
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vi21.net accessibility score
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
Buttons do not have an accessible name
Image elements do not have [alt] attributes
Links do not have a discernible name
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
vi21.net 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
User Experience
Impact
Issue
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
vi21.net SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
robots.txt is not valid
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
GBK
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Vi21.net 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 Vi21.net main page’s claimed encoding is gbk. 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}}
vi21.net
Open Graph description is not detected on the main page of Vi 21. 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: