2.1 sec in total
67 ms
1.9 sec
134 ms
Click here to check amazing Liu Xuanzhe content. Otherwise, check out these important facts you probably never knew about liuxuanzhe.com
Xuanzhe Liu, Associate Professor, Peking University
Visit liuxuanzhe.comWe analyzed Liuxuanzhe.com page load time and found that the first response time was 67 ms and then it took 2 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 40% of websites can load faster.
liuxuanzhe.com performance score
name
value
score
weighting
Value2.0 s
85/100
10%
Value10.9 s
0/100
25%
Value6.1 s
45/100
10%
Value340 ms
74/100
30%
Value0.365
29/100
15%
Value8.7 s
36/100
10%
67 ms
58 ms
54 ms
120 ms
63 ms
Our browser made a total of 131 requests to load all elements on the main page. We found that all of those requests were addressed to Liuxuanzhe.com and no external sources were called. The less responsive or slowest element that took the longest time to load (412 ms) belongs to the original domain Liuxuanzhe.com.
Page size can be reduced by 2.9 MB (16%)
18.5 MB
15.7 MB
In fact, the total size of Liuxuanzhe.com main page is 18.5 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. 85% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 17.7 MB which makes up the majority of the site volume.
Potential reduce by 505.1 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. 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 505.1 kB or 86% of the original size.
Potential reduce by 2.4 MB
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, Liu Xuanzhe needs image optimization as it can save up to 2.4 MB or 13% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 13.8 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. This website has mostly compressed JavaScripts.
Potential reduce by 5.4 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. Liuxuanzhe.com has all CSS files already compressed.
Number of requests can be reduced by 14 (12%)
121
107
The browser has sent 121 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Liu Xuanzhe. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and from 8 to 1 for CSS and as a result speed up the page load time.
liuxuanzhe.com
67 ms
bootstrap.min.css
58 ms
all.css
54 ms
linecons.css
120 ms
normalize.css
63 ms
color.css
63 ms
style.css
64 ms
Montserrat.css
79 ms
Raleway.css
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jquery.js
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bootstrap.min.js
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default.js
133 ms
content.js
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watch.js
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layout.js
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main.js
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map.js
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Xuanzhe.jpg
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content.xml
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liuxuanzhe.com 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.
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
Tables and lists
These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.
Impact
Issue
List items (<li>) are not contained within <ul> or <ol> parent elements.
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.
liuxuanzhe.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
User Experience
Impact
Issue
Displays images with incorrect aspect ratio
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
liuxuanzhe.com SEO score
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Links do not have descriptive text
Image elements do not have [alt] attributes
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
Tap targets are not sized appropriately
EN
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Liuxuanzhe.com can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that Liuxuanzhe.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.
liuxuanzhe.com
Open Graph description is not detected on the main page of Liu Xuanzhe. 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: