Tools & Wizards About Us
zyan.cc screenshot

Report Summary

  • 99

    Performance

    Renders faster than
    96% of other websites

  • 80

    Accessibility

    Visual factors better than
    that of 49% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 91

    SEO

    Google-friendlier than
    70% of websites

zyan.cc

张宴的博客 - Web系统架构与底层研发

Page Load Speed

23.2 sec in total

First Response

796 ms

Resources Loaded

20.7 sec

Page Rendered

1.7 sec

zyan.cc screenshot

About Website

Click here to check amazing Zyan content for Pakistan. Otherwise, check out these important facts you probably never knew about zyan.cc

Web系统架构与底层研发

Visit zyan.cc

Key Findings

We analyzed Zyan.cc page load time and found that the first response time was 796 ms and then it took 22.4 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 4 request timeouts, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

zyan.cc performance score

99

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.6 s

93/100

10%

LCP (Largest Contentful Paint)

Value1.6 s

99/100

25%

SI (Speed Index)

Value2.8 s

96/100

10%

TBT (Total Blocking Time)

Value10 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.002

100/100

15%

TTI (Time to Interactive)

Value1.8 s

100/100

10%

Network Requests Diagram

zyan.cc

796 ms

styles.css

332 ms

5.1.css

347 ms

common.js

351 ms

jslang.js

381 ms

Our browser made a total of 82 requests to load all elements on the main page. We found that 56% of them (46 requests) were addressed to the original Zyan.cc, 16% (13 requests) were made to Cdn.phpts.cn and 4% (3 requests) were made to Pic1.zyan.cc. The less responsive or slowest element that took the longest time to load (19.6 sec) relates to the external source Pic3.s135.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 540.1 kB (19%)

Content Size

2.8 MB

After Optimization

2.3 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Zyan.cc main page is 2.8 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. 35% of websites need less resources to load. Images take 2.6 MB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 91.0 kB

  • Original 118.8 kB
  • After minification 118.1 kB
  • After compression 27.8 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. 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 91.0 kB or 77% of the original size.

Image Optimization

-17%

Potential reduce by 440.2 kB

  • Original 2.6 MB
  • After minification 2.2 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, Zyan needs image optimization as it can save up to 440.2 kB or 17% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-7%

Potential reduce by 6.4 kB

  • Original 97.3 kB
  • After minification 97.3 kB
  • After compression 90.9 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.

CSS Optimization

-39%

Potential reduce by 2.4 kB

  • Original 6.2 kB
  • After minification 6.1 kB
  • After compression 3.8 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. Zyan.cc needs all CSS files to be minified and compressed as it can save up to 2.4 kB or 39% of the original size.

Requests Breakdown

Number of requests can be reduced by 46 (60%)

Requests Now

77

After Optimization

31

  • Images
  • JavaScript
  • CSS

The browser has sent 77 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Zyan. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 19 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

zyan.cc

zyan.cc

796 ms

styles.css

styles.css

332 ms

5.1.css

5.1.css

347 ms

common.js

common.js

351 ms

jslang.js

jslang.js

381 ms

ajax.js

ajax.js

399 ms

swfobject.js

swfobject.js

382 ms

SyntaxHighlighter.css

SyntaxHighlighter.css

492 ms

shCore.js

shCore.js

367 ms

shBrushCSharp.js

shBrushCSharp.js

367 ms

shBrushPhp.js

shBrushPhp.js

368 ms

shBrushJScript.js

shBrushJScript.js

367 ms

shBrushJava.js

shBrushJava.js

393 ms

shBrushVb.js

shBrushVb.js

446 ms

shBrushSql.js

shBrushSql.js

481 ms

shBrushXml.js

shBrushXml.js

489 ms

shBrushCss.js

shBrushCss.js

518 ms

shBrushCpp.js

shBrushCpp.js

550 ms

shBrushDelphi.js

shBrushDelphi.js

588 ms

shBrushPython.js

shBrushPython.js

610 ms

shBrushRuby.js

shBrushRuby.js

653 ms

adsbygoogle.js

adsbygoogle.js

170 ms

phpts10601.png

phpts10601.png

5255 ms

tree_linemiddle.gif

tree_linemiddle.gif

782 ms

diannao.gif

diannao.gif

773 ms

xinqing.gif

xinqing.gif

859 ms

desk.gif

desk.gif

762 ms

notebook.png

notebook.png

772 ms

zaishang.gif

zaishang.gif

634 ms

nalai.gif

nalai.gif

706 ms

soft.gif

soft.gif

816 ms

mainmenu.png

mainmenu.png

1659 ms

phpts10502.jpg

phpts10502.jpg

5569 ms

phpts106php.png

phpts106php.png

1705 ms

phpts106phpext.png

phpts106phpext.png

2374 ms

phpts106mysql.png

phpts106mysql.png

3316 ms

phpts104heidisql.png

phpts104heidisql.png

4838 ms

phpts106memcached.png

phpts106memcached.png

4161 ms

phpts10506.jpg

phpts10506.jpg

4231 ms

phpts10507.jpg

phpts10507.jpg

5890 ms

mongodbadmin-1.png

mongodbadmin-1.png

4559 ms

phpts106console.png

phpts106console.png

6116 ms

phptsbnew.jpg

phptsbnew.jpg

5361 ms

tree_linebottom.gif

tree_linebottom.gif

772 ms

mysqlcft.png

mysqlcft.png

827 ms

page_script.gif

page_script.gif

783 ms

down.gif

down.gif

808 ms

nginx.gif

nginx.gif

773 ms

phpcws.png

phpcws.png

840 ms

doubleleft.gif

doubleleft.gif

485 ms

singleright.gif

singleright.gif

544 ms

doubleright.gif

doubleright.gif

544 ms

starred.gif

starred.gif

588 ms

blank.gif

blank.gif

573 ms

readmore.gif

readmore.gif

626 ms

unstarred.gif

unstarred.gif

637 ms

cu1.jpg

cu1.jpg

918 ms

cu2.jpg

cu2.jpg

1065 ms

1.jpg

1.jpg

1135 ms

2.jpg

2.jpg

1130 ms

3.jpg

3.jpg

1056 ms

touch-callout.jpg

touch-callout.jpg

1001 ms

rss.png

rss.png

1091 ms

f5.gif

f5.gif

864 ms

scuec.gif

scuec.gif

19612 ms

sina_vnet_podcast.jpg

sina_vnet_podcast.jpg

19612 ms

kingsoft.gif

kingsoft.gif

19612 ms

apmserv_logo.jpg

apmserv_logo.jpg

19613 ms

nginx_book.jpg

nginx_book.jpg

896 ms

logo.jpg

logo.jpg

1112 ms

menu_a.gif

menu_a.gif

1145 ms

announce_bg.gif

announce_bg.gif

1170 ms

textbox_top.gif

textbox_top.gif

1179 ms

textbox_bg.gif

textbox_bg.gif

1245 ms

panel_header.gif

panel_header.gif

1213 ms

bg.gif

bg.gif

1287 ms

list.gif

list.gif

1317 ms

logo-kingsoft.gif

logo-kingsoft.gif

1285 ms

logo-sina.jpg

logo-sina.jpg

1288 ms

zhangyan.gif

zhangyan.gif

1312 ms

hm.js

hm.js

1007 ms

hm.gif

hm.gif

328 ms

Accessibility Review

zyan.cc accessibility score

80

Accessibility Issues

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

zyan.cc best practices score

67

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

zyan.cc SEO score

91

Search Engine Optimization Advices

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

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    ZH

  • Language Claimed

    ZH

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Zyan.cc can be misinterpreted by Google and other search engines. Our service has detected that Chinese is used on the page, and it matches the claimed language. Our system also found out that Zyan.cc 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.

Social Sharing Optimization

zyan.cc

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