Tools & Wizards About Us
china-ybb.com screenshot

Report Summary

  • 73

    Performance

    Renders faster than
    83% of other websites

  • 39

    Accessibility

    Visual factors better than
    that of 18% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 50

    SEO

    Google-friendlier than
    18% of websites

china-ybb.com

邮宝宝,邮票,邮戳,集邮,邮票目录,邮票行情,个性礼品制作

Page Load Speed

52.9 sec in total

First Response

6.6 sec

Resources Loaded

45.8 sec

Page Rendered

577 ms

china-ybb.com screenshot

About Website

Visit china-ybb.com now to see the best up-to-date China Ybb content and also check out these interesting facts you probably never knew about china-ybb.com

中华邮宝宝重新诠释邮票与邮戳的价值，以邮戳日期引出历史上的今天，进而介绍生日邮票的概念。中华邮宝宝同时整理出最全的邮票目录、最新的邮票行情与丰富的邮票历史使得集邮活动与邮戳研究不再是深奥的学问。

Visit china-ybb.com

Key Findings

We analyzed China-ybb.com page load time and found that the first response time was 6.6 sec and then it took 46.3 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 26 request timeouts, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

china-ybb.com performance score

73

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.8 s

88/100

10%

LCP (Largest Contentful Paint)

Value5.3 s

21/100

25%

SI (Speed Index)

Value5.1 s

62/100

10%

TBT (Total Blocking Time)

Value120 ms

97/100

30%

CLS (Cumulative Layout Shift)

Value0.007

100/100

15%

TTI (Time to Interactive)

Value4.2 s

85/100

10%

Network Requests Diagram

china-ybb.com

6599 ms

jquery-1.4.2.js

20410 ms

img.js

1027 ms

index.css

2628 ms

header.css

3577 ms

Our browser made a total of 49 requests to load all elements on the main page. We found that 82% of them (40 requests) were addressed to the original China-ybb.com, 10% (5 requests) were made to Bdimg.share.baidu.com and 4% (2 requests) were made to Hm.baidu.com. The less responsive or slowest element that took the longest time to load (20.4 sec) belongs to the original domain China-ybb.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 53.7 kB (67%)

Content Size

80.3 kB

After Optimization

26.6 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of China-ybb.com main page is 80.3 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. Only 10% of websites need less resources to load. Javascripts take 42.6 kB which makes up the majority of the site volume.

HTML Optimization

-74%

Potential reduce by 20.1 kB

  • Original 27.3 kB
  • After minification 21.7 kB
  • After compression 7.1 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 5.6 kB, which is 21% 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 20.1 kB or 74% of the original size.

Image Optimization

-76%

Potential reduce by 3.0 kB

  • Original 3.9 kB
  • After minification 939 B

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, China Ybb needs image optimization as it can save up to 3.0 kB or 76% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-64%

Potential reduce by 27.2 kB

  • Original 42.6 kB
  • After minification 41.8 kB
  • After compression 15.4 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 27.2 kB or 64% of the original size.

CSS Optimization

-51%

Potential reduce by 3.4 kB

  • Original 6.6 kB
  • After minification 6.1 kB
  • After compression 3.2 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. China-ybb.com needs all CSS files to be minified and compressed as it can save up to 3.4 kB or 51% of the original size.

Requests Breakdown

Number of requests can be reduced by 5 (23%)

Requests Now

22

After Optimization

17

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 22 CSS, Javascripts, AJAX and image requests in order to completely render the main page of China Ybb. 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.

Network Requests Diagram

china-ybb.com

china-ybb.com

6599 ms

jquery-1.4.2.js

jquery-1.4.2.js

20410 ms

img.js

img.js

1027 ms

index.css

index.css

2628 ms

header.css

header.css

3577 ms

jquery.js

jquery.js

20125 ms

index.js

index.js

1077 ms

d35f7db1525b2ed78b9dc97d4946ae54

d35f7db1525b2ed78b9dc97d4946ae54

1173 ms

bg.jpg

bg.jpg

2712 ms

logo.jpg

logo.jpg

16529 ms

search.gif

search.gif

984 ms

new.gif

new.gif

2762 ms

banner.jpg

banner.jpg

19971 ms

ss_02.jpg

ss_02.jpg

11157 ms

CUCN-TZ022S-01.jpg

CUCN-TZ022S-01.jpg

17915 ms

ss_04.jpg

ss_04.jpg

9545 ms

i_adjt.png

i_adjt.png

7673 ms

name.jpg

name.jpg

19971 ms

menu.jpg

menu.jpg

19972 ms

banner02.gif

banner02.gif

16555 ms

MUCN-RG008S-01.jpg

MUCN-RG008S-01.jpg

19971 ms

MUCN-RG042S-81.jpg

MUCN-RG042S-81.jpg

19972 ms

CUCN-SP056S-03.jpg

CUCN-SP056S-03.jpg

19973 ms

CUCN-JN092S-01.jpg

CUCN-JN092S-01.jpg

19974 ms

f_02.gif

f_02.gif

19973 ms

f_05.gif

f_05.gif

19973 ms

f_07.gif

f_07.gif

19972 ms

line.jpg

line.jpg

19973 ms

ss-14.gif

ss-14.gif

19972 ms

f_10.gif

f_10.gif

19971 ms

f_13.gif

f_13.gif

19972 ms

f_15.gif

f_15.gif

19971 ms

f_18.gif

f_18.gif

19972 ms

ss.jpg

ss.jpg

19978 ms

c2601.jpg

c2601.jpg

19979 ms

g1267.jpg

g1267.jpg

19979 ms

a7528.jpg

a7528.jpg

19979 ms

a7910.jpg

a7910.jpg

19979 ms

a8336.jpg

a8336.jpg

19979 ms

up.png

up.png

19979 ms

iad6.jpg

iad6.jpg

19978 ms

h.js

h.js

1080 ms

hm.gif

hm.gif

413 ms

shell_v2.js

shell_v2.js

3633 ms

logger.js

logger.js

372 ms

bds_s_v2.js

bds_s_v2.js

2561 ms

bdsstyle.css

bdsstyle.css

359 ms

r3.gif

r3.gif

9329 ms

button_111.gif

button_111.gif

1281 ms

Accessibility Review

china-ybb.com accessibility score

39

Accessibility Issues

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

Background and foreground colors do not have a sufficient contrast ratio.

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

High

Definition list items are not wrapped in <dl> elements

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<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

High

Image elements do not have [alt] attributes

High

Form elements do not have associated labels

High

Links do not have a discernible name

Best Practices

china-ybb.com best practices score

58

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

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

china-ybb.com SEO score

50

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

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

High

Image elements do not have [alt] attributes

Language and Encoding

  • Language Detected

    ZH

  • Language Claimed

    N/A

  • Encoding

    GB2312

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise China-ybb.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 China-ybb.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.

Social Sharing Optimization

china-ybb.com

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