18.7 sec in total
2.5 sec
16.1 sec
215 ms
Welcome to 51zhi.com homepage info - get ready to check 51 Zhi best content for China right away, or after learning these important things about 51zhi.com
行恒,线上在线自习室晚自习。番茄工作法、四象限、打卡、作业清单、作业辅导、作业交流、作业跟踪、作业计划、个人宣传相关内容。经过观察社区数万名学生的行为,我们发现一个关于自律力的数学模型。在社区,自律力分达到90分以上的学生,成绩获得B+或以上的可能性非常高
Visit 51zhi.comWe analyzed 51zhi.com page load time and found that the first response time was 2.5 sec and then it took 16.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.
51zhi.com performance score
name
value
score
weighting
Value3.7 s
29/100
10%
Value3.7 s
57/100
25%
Value5.6 s
52/100
10%
Value1,160 ms
22/100
30%
Value0.003
100/100
15%
Value9.5 s
30/100
10%
2471 ms
4551 ms
3392 ms
3441 ms
4296 ms
Our browser made a total of 44 requests to load all elements on the main page. We found that 20% of them (9 requests) were addressed to the original 51zhi.com, 39% (17 requests) were made to Static.51zhi.com and 32% (14 requests) were made to Bdimg.share.baidu.com. The less responsive or slowest element that took the longest time to load (7.9 sec) relates to the external source Static.51zhi.com.
Page size can be reduced by 294.1 kB (56%)
521.7 kB
227.6 kB
In fact, the total size of 51zhi.com main page is 521.7 kB. 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. Javascripts take 234.1 kB which makes up the majority of the site volume.
Potential reduce by 34.1 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 10.1 kB, which is 25% 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 34.1 kB or 83% of the original size.
Potential reduce by 18.3 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, 51 Zhi needs image optimization as it can save up to 18.3 kB or 17% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 127.5 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 127.5 kB or 54% of the original size.
Potential reduce by 114.2 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. 51zhi.com needs all CSS files to be minified and compressed as it can save up to 114.2 kB or 83% of the original size.
Number of requests can be reduced by 23 (55%)
42
19
The browser has sent 42 CSS, Javascripts, AJAX and image requests in order to completely render the main page of 51 Zhi. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 21 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.
51zhi.com
2471 ms
jquery-1.11.1.min.js
4551 ms
jquery-migrate-1.2.1.min.js
3392 ms
respond.min.js
3441 ms
bootstrap.min.css
4296 ms
bootstrap-theme.min.css
3450 ms
bootstrap.min.js
4188 ms
common.css
4251 ms
tomato.js
4244 ms
block.js
4988 ms
browser.js
5017 ms
site.min.js
7929 ms
9864.png
2393 ms
logo.png
429 ms
tomato_user.png
5568 ms
secret-mask-icon-32.png
802 ms
tomato-icon-24.png
808 ms
qrcode_sm.jpg
1644 ms
10773.png
3989 ms
9276.png
2215 ms
9909.png
2935 ms
9304.png
2986 ms
10100.png
5626 ms
10024.png
5630 ms
1.png
4716 ms
glyphicons-halflings-regular.woff
2206 ms
share.js
541 ms
h.js
897 ms
21.gif
1125 ms
share_api.js
237 ms
share_view.js
474 ms
image_api.js
474 ms
image_view.js
468 ms
hm.gif
242 ms
tangram.js
1917 ms
api_base.js
466 ms
view_base.js
239 ms
partners.js
368 ms
share_style0_16.css
384 ms
data.js
389 ms
icons_0_16.png
1899 ms
sc.png
398 ms
getnum
1155 ms
logger.js
436 ms
51zhi.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.
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
Image elements do not have [alt] attributes
Form elements do not have associated labels
51zhi.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
Detected JavaScript libraries
Browser errors were logged to the console
51zhi.com 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
Tap targets are not sized appropriately
ZH
N/A
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise 51zhi.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 51zhi.com main page’s claimed encoding is utf-8. Use of this encoding format is the best practice as the main page visitors from all over the world won’t have any issues with symbol transcription.
51zhi.com
Open Graph description is not detected on the main page of 51 Zhi. 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: