Tools & Wizards About Us
post-code.jp screenshot

Report Summary

  • 100

    Performance

    Renders faster than
    97% of other websites

  • 100

    Accessibility

    Visual factors better than
    that of 97% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 75

    SEO

    Google-friendlier than
    32% of websites

post-code.jp

変更郵便番号検索＋変更住所検索のポストコード

Page Load Speed

2.9 sec in total

First Response

977 ms

Resources Loaded

1.8 sec

Page Rendered

97 ms

post-code.jp screenshot

About Website

Visit post-code.jp now to see the best up-to-date Post Code content for Japan and also check out these interesting facts you probably never knew about post-code.jp

変更！郵便番号検索＋変更！住所検索サービス。変更された郵便番号を簡単検索します。変更された住所から郵便番号および新住所を検索。変更された郵便番号から過去の住所および新住所を検索。

Visit post-code.jp

Key Findings

We analyzed Post-code.jp page load time and found that the first response time was 977 ms and then it took 1.9 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 35% of websites can load faster.

Performance Metrics

post-code.jp performance score

100

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value0.8 s

100/100

10%

LCP (Largest Contentful Paint)

Value0.8 s

100/100

25%

SI (Speed Index)

Value1.7 s

100/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value0.8 s

100/100

10%

Network Requests Diagram

post-code.jp

977 ms

style.css

359 ms

title_logo4.gif

503 ms

new.gif

979 ms

Our browser made a total of 4 requests to load all elements on the main page. We found that all of those requests were addressed to Post-code.jp and no external sources were called. The less responsive or slowest element that took the longest time to load (979 ms) belongs to the original domain Post-code.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 4.6 kB (66%)

Content Size

7.0 kB

After Optimization

2.4 kB

  • HTML
  • CSS

In fact, the total size of Post-code.jp main page is 7.0 kB. This result falls within a vast category (top 1 000 000) of heavyweight, probably not optimized, and thus slow loading web pages. Only a small number of websites need less resources to load. HTML takes 5.5 kB which makes up the majority of the site volume.

HTML Optimization

-63%

Potential reduce by 3.4 kB

  • Original 5.5 kB
  • After minification 5.5 kB
  • After compression 2.0 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 3.4 kB or 63% of the original size.

CSS Optimization

-77%

Potential reduce by 1.2 kB

  • Original 1.5 kB
  • After minification 983 B
  • After compression 351 B

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. Post-code.jp needs all CSS files to be minified and compressed as it can save up to 1.2 kB or 77% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

3

After Optimization

3

  • Images
  • CSS

The browser has sent 3 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Post Code. According to our analytics all requests are already optimized.

Network Requests Diagram

post-code.jp

post-code.jp

977 ms

style.css

style.css

359 ms

title_logo4.gif

title_logo4.gif

503 ms

new.gif

new.gif

979 ms

Accessibility Review

post-code.jp accessibility score

100

Accessibility Issues

Best Practices

post-code.jp best practices score

75

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

Serves images with low resolution

SEO Factors

post-code.jp SEO score

75

Search Engine Optimization Advices

Language and Encoding

  • Language Detected

    JA

  • Language Claimed

    JA

  • Encoding

    SHIFT_JIS

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Post-code.jp can be misinterpreted by Google and other search engines. Our service has detected that Japanese is used on the page, and it matches the claimed language. Our system also found out that Post-code.jp main page’s claimed encoding is shift_jis. 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

post-code.jp

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