Tools & Wizards About Us
youbianku.com screenshot

Report Summary

  • 53

    Performance

    Renders faster than
    70% of other websites

  • 80

    Accessibility

    Visual factors better than
    that of 49% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 79

    SEO

    Google-friendlier than
    40% of websites

youbianku.com

Home | Postal Code

Page Load Speed

1.6 sec in total

First Response

53 ms

Resources Loaded

1 sec

Page Rendered

505 ms

youbianku.com screenshot

About Website

Click here to check amazing Youbianku content for China. Otherwise, check out these important facts you probably never knew about youbianku.com

邮编库网站(youbianku.com)创立于1998年，经过20多年来不断完善和扩展，目前以50多种语言提供全世界上百个国家和地区的邮政编码查询服务。 Postal Code Base website (youbianku.com) was established in 1998, after more than 20 years of continuous improvement and ex...

Visit youbianku.com

Key Findings

We analyzed Youbianku.com page load time and found that the first response time was 53 ms and then it took 1.5 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 30% of websites can load faster.

Performance Metrics

youbianku.com performance score

53

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.4 s

97/100

10%

LCP (Largest Contentful Paint)

Value1.4 s

100/100

25%

SI (Speed Index)

Value4.2 s

77/100

10%

TBT (Total Blocking Time)

Value2,680 ms

4/100

30%

CLS (Cumulative Layout Shift)

Value0.277

44/100

15%

TTI (Time to Interactive)

Value9.9 s

27/100

10%

Network Requests Diagram

youbianku.com

53 ms

youbianku.com

61 ms

css_xE-rWrJf-fncB6ztZfd2huxqgxu4WO-qwma6Xer30m4.css

25 ms

css_NdVgz6YKifxQUEsW5xls_zI7Pn2F7E5U5Wb29zcu3vo.css

49 ms

css_PGbJgHCUCBf4dg7K9Kt8aAwsApndP4GZ9RuToPy3-Fk.css

106 ms

Our browser made a total of 76 requests to load all elements on the main page. We found that 95% of them (72 requests) were addressed to the original Youbianku.com, 3% (2 requests) were made to Pagead2.googlesyndication.com and 1% (1 request) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (313 ms) belongs to the original domain Youbianku.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 30.4 kB (10%)

Content Size

312.9 kB

After Optimization

282.5 kB

  • HTML
  • JavaScript
  • CSS

In fact, the total size of Youbianku.com main page is 312.9 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. 35% of websites need less resources to load. Javascripts take 267.2 kB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 30.3 kB

  • Original 38.6 kB
  • After minification 38.5 kB
  • After compression 8.2 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 30.3 kB or 79% of the original size.

JavaScript Optimization

-0%

Potential reduce by 18 B

  • Original 267.2 kB
  • After minification 267.2 kB
  • After compression 267.2 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

-0%

Potential reduce by 21 B

  • Original 7.1 kB
  • After minification 7.1 kB
  • After compression 7.0 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. Youbianku.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 44 (59%)

Requests Now

74

After Optimization

30

  • Images
  • JavaScript
  • CSS

The browser has sent 74 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Youbianku. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

youbianku.com

youbianku.com

53 ms

youbianku.com

youbianku.com

61 ms

css_xE-rWrJf-fncB6ztZfd2huxqgxu4WO-qwma6Xer30m4.css

css_xE-rWrJf-fncB6ztZfd2huxqgxu4WO-qwma6Xer30m4.css

25 ms

css_NdVgz6YKifxQUEsW5xls_zI7Pn2F7E5U5Wb29zcu3vo.css

css_NdVgz6YKifxQUEsW5xls_zI7Pn2F7E5U5Wb29zcu3vo.css

49 ms

css_PGbJgHCUCBf4dg7K9Kt8aAwsApndP4GZ9RuToPy3-Fk.css

css_PGbJgHCUCBf4dg7K9Kt8aAwsApndP4GZ9RuToPy3-Fk.css

106 ms

css_rFRidCgnfRwnJJcwUlfE-_Tqk3-wlo0H0ryF9KQUVCA.css

css_rFRidCgnfRwnJJcwUlfE-_Tqk3-wlo0H0ryF9KQUVCA.css

47 ms

js_YD9ro0PAqY25gGWrTki6TjRUG8TdokmmxjfqpNNfzVU.js

js_YD9ro0PAqY25gGWrTki6TjRUG8TdokmmxjfqpNNfzVU.js

56 ms

js

js

78 ms

adsbygoogle.js

adsbygoogle.js

295 ms

vedd3670a3b1c4e178fdfb0cc912d969e1713874337387

vedd3670a3b1c4e178fdfb0cc912d969e1713874337387

102 ms

logo-header.svg

logo-header.svg

250 ms

lang-switch.svg

lang-switch.svg

243 ms

bg-02.svg

bg-02.svg

244 ms

countries.svg

countries.svg

248 ms

china.svg

china.svg

241 ms

usa.svg

usa.svg

251 ms

postal-code.svg

postal-code.svg

252 ms

down.svg

down.svg

256 ms

the-United-Kingdom.svg

the-United-Kingdom.svg

265 ms

Germany.svg

Germany.svg

254 ms

Belgium.svg

Belgium.svg

258 ms

France.svg

France.svg

260 ms

Netherlands.svg

Netherlands.svg

268 ms

Bosnia-Herzegovina.svg

Bosnia-Herzegovina.svg

262 ms

Finland.svg

Finland.svg

268 ms

Hungary.svg

Hungary.svg

272 ms

Poland.svg

Poland.svg

270 ms

Serbia.svg

Serbia.svg

276 ms

Slovakia.svg

Slovakia.svg

273 ms

Sweden.svg

Sweden.svg

279 ms

Ukraine.svg

Ukraine.svg

277 ms

Croatia.svg

Croatia.svg

281 ms

Romania.svg

Romania.svg

289 ms

Austria.svg

Austria.svg

283 ms

Bangladesh.svg

Bangladesh.svg

285 ms

Bulgaria.svg

Bulgaria.svg

296 ms

Switzerland.svg

Switzerland.svg

286 ms

Czech-Republic.svg

Czech-Republic.svg

293 ms

Denmark.svg

Denmark.svg

291 ms

Spain.svg

Spain.svg

299 ms

Italy.svg

Italy.svg

297 ms

Lithuania.svg

Lithuania.svg

305 ms

uxembourg.svg

uxembourg.svg

309 ms

Moldova.svg

Moldova.svg

306 ms

Norway.svg

Norway.svg

313 ms

Portugal.svg

Portugal.svg

258 ms

Russia.svg

Russia.svg

140 ms

Slovenia.svg

Slovenia.svg

141 ms

India.svg

India.svg

138 ms

Indonesia.svg

Indonesia.svg

140 ms

South-Korea.svg

South-Korea.svg

139 ms

Malaysia.svg

Malaysia.svg

135 ms

Pakistan.svg

Pakistan.svg

145 ms

Taiwan.svg

Taiwan.svg

146 ms

Turkey.svg

Turkey.svg

141 ms

Thailand.svg

Thailand.svg

145 ms

Japan.svg

Japan.svg

141 ms

Sri-Lanka.svg

Sri-Lanka.svg

131 ms

Philippines.svg

Philippines.svg

166 ms

Mexico.svg

Mexico.svg

149 ms

Canada.svg

Canada.svg

146 ms

Dominican-Republic.svg

Dominican-Republic.svg

142 ms

Guatemala.svg

Guatemala.svg

165 ms

Paraguay.svg

Paraguay.svg

160 ms

Venezuela.svg

Venezuela.svg

167 ms

Colombia.svg

Colombia.svg

161 ms

Brazil.svg

Brazil.svg

160 ms

Argentina.svg

Argentina.svg

162 ms

South-Africa.svg

South-Africa.svg

165 ms

Algeria.svg

Algeria.svg

160 ms

Ethiopia.svg

Ethiopia.svg

159 ms

Australia.svg

Australia.svg

161 ms

New-Zealand.svg

New-Zealand.svg

168 ms

arab.svg

arab.svg

162 ms

gotop.svg

gotop.svg

158 ms

show_ads_impl.js

show_ads_impl.js

250 ms

Accessibility Review

youbianku.com accessibility score

80

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

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

youbianku.com best practices score

83

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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

youbianku.com SEO score

79

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

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

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

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

Social Sharing Optimization

youbianku.com

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