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21cnlib.com

2654 ms

welcome.png

511 ms

Our browser made a total of 2 requests to load all elements on the main page. We found that all of those requests were addressed to 21cnlib.com and no external sources were called. The less responsive or slowest element that took the longest time to load (2.7 sec) belongs to the original domain 21cnlib.com.

Content Size

652 B

After Optimization

437 B

In fact, the total size of 21cnlib.com main page is 652 B. This result falls within a big category (top 100 000) of medium weight web pages. Only a small number of websites need less resources to load. HTML takes 652 B which makes up the majority of the site volume.

HTML Optimization

-33%

Potential reduce by 215 B

Original 652 B
After minification 651 B
After compression 437 B

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 215 B or 33% of the original size.

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After Optimization

The browser has sent 1 CSS, Javascripts, AJAX and image requests in order to completely render the main page of 21 Cnlib. According to our analytics all requests are already optimized.

Language and Encoding

Language Detected

Language Claimed

N/A

Encoding

ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise 21cnlib.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 21cnlib.com main page’s claimed encoding is iso-8859-1. 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.

Social Sharing Optimization

21cnlib.com

Open Graph description is not detected on the main page of 21 Cnlib. 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: