24.8 sec in total
Visit sem.cm now to see the best up-to-date Sem content for China and also check out these interesting facts you probably never knew about sem.cm
We analyzed Sem.cm page load time and found that the first response time was 806 ms and then it took 24 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 2 request timeouts, which can generally increase the web page load time, as the browser stays idle while waiting for website response.
sem.cm performance score
Our browser made a total of 78 requests to load all elements on the main page. We found that 77% of them (60 requests) were addressed to the original Sem.cm, 6% (5 requests) were made to Bdimg.share.baidu.com and 3% (2 requests) were made to Hm.baidu.com. The less responsive or slowest element that took the longest time to load (19.8 sec) relates to the external source Semplus.org.
Page size can be reduced by 421.0 kB (14%)
In fact, the total size of Sem.cm main page is 3.1 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. 45% of websites need less resources to load. Images take 2.8 MB which makes up the majority of the site volume.
Potential reduce by 93.8 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 12.8 kB, which is 11% 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 93.8 kB or 83% of the original size.
Potential reduce by 208.6 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. Sem images are well optimized though.
Potential reduce by 102.4 kB
Potential reduce by 16.2 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. Sem.cm needs all CSS files to be minified and compressed as it can save up to 16.2 kB or 72% of the original size.
Number of requests can be reduced by 8 (11%)
sem.cm accessibility score
These are opportunities to improve the legibility of your content.
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.
<frame> or <iframe> elements do not have a title
Internationalization and localization
These are opportunities to improve the interpretation of your content by users in different locales.
<html> element does not have a [lang] attribute
sem.cm best practices score
Trust and Safety
Does not use HTTPS
Ensure CSP is effective against XSS attacks
sem.cm SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Page is blocked from indexing
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/).
Document uses legible font sizes
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Sem.cm can be misinterpreted by Google and other search engines. Unfortunately we cannot identify language used on the page (probably there is a mix of languages, too little text or something else) and no language is claimed in <html> or <meta> tags either. Our system also found out that Sem.cm 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.
Open Graph description is not detected on the main page of Sem. 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: