55.3 sec in total
2.5 sec
48.6 sec
4.2 sec
Welcome to sp910.com homepage info - get ready to check Sp 910 best content for China right away, or after learning these important things about sp910.com
教视网收录了国家级优质课教学视频和各省市优质课、展示课、公开课等名师课堂实录。教视网为广大中小学教师朋友提供一个优质而便捷的教学视频观看平台。
Visit sp910.comWe analyzed Sp910.com page load time and found that the first response time was 2.5 sec and then it took 52.9 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 were 10 request timeouts, which can generally increase the web page load time, as the browser stays idle while waiting for website response.
sp910.com performance score
name
value
score
weighting
Value5.3 s
8/100
10%
Value8.5 s
2/100
25%
Value10.7 s
7/100
10%
Value60 ms
100/100
30%
Value0
100/100
15%
Value10.4 s
24/100
10%
2456 ms
10225 ms
4654 ms
11257 ms
4053 ms
Our browser made a total of 81 requests to load all elements on the main page. We found that 44% of them (36 requests) were addressed to the original Sp910.com, 20% (16 requests) were made to Q.qlogo.cn and 17% (14 requests) were made to Img2.sp910.com. The less responsive or slowest element that took the longest time to load (20 sec) belongs to the original domain Sp910.com.
Page size can be reduced by 415.0 kB (39%)
1.1 MB
643.4 kB
In fact, the total size of Sp910.com main page is 1.1 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. 25% of websites need less resources to load. Images take 569.7 kB which makes up the majority of the site volume.
Potential reduce by 193.4 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 193.4 kB or 88% of the original size.
Potential reduce by 26.6 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. Sp 910 images are well optimized though.
Potential reduce by 106.8 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 106.8 kB or 67% of the original size.
Potential reduce by 88.2 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. Sp910.com needs all CSS files to be minified and compressed as it can save up to 88.2 kB or 81% of the original size.
Number of requests can be reduced by 5 (7%)
69
64
The browser has sent 69 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sp 910. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 6 to 1 for JavaScripts and as a result speed up the page load time.
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sp910.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
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.
sp910.com 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
Registers an unload listener
Detected JavaScript libraries
Issues were logged in the Issues panel in Chrome Devtools
sp910.com SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
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 Sp910.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 Sp910.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.
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sp910.com
Open Graph description is not detected on the main page of Sp 910. 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: