Access rokka.jp. 横浜市交通局資産活用ポータル

Report Summary

About Website

Click here to check amazing Rokka content. Otherwise, check out these important facts you probably never knew about rokka.jp

横浜市交通局資産活用ポータルサイト。横浜市営地下鉄の駅をもっと便利に楽しく。駅ナカ周辺情報サイト。

Visit rokka.jp

name

value

score

weighting

FCP (First Contentful Paint)

Value5.8 s

4/100

10%

LCP (Largest Contentful Paint)

Value9.2 s

1/100

25%

SI (Speed Index)

Value8.4 s

19/100

10%

TBT (Total Blocking Time)

Value130 ms

96/100

30%

CLS (Cumulative Layout Shift)

Value0.219

57/100

15%

TTI (Time to Interactive)

Value9.3 s

31/100

10%

rokka.jp

201 ms

yokohamakotsu-shisan.jp

474 ms

jquery.js

260 ms

jquery-ui.min.js

435 ms

jquery.lightbox-0.5.js

252 ms

Our browser made a total of 49 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Rokka.jp, 90% (44 requests) were made to Yokohamakotsu-shisan.jp and 4% (2 requests) were made to Ssl.google-analytics.com. The less responsive or slowest element that took the longest time to load (478 ms) relates to the external source Yokohamakotsu-shisan.jp.

Content Size

710.5 kB

After Optimization

378.6 kB

In fact, the total size of Rokka.jp main page is 710.5 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 428.9 kB which makes up the majority of the site volume.

HTML Optimization

-73%

Potential reduce by 11.2 kB

Original 15.3 kB
After minification 14.0 kB
After compression 4.1 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 11.2 kB or 73% of the original size.

Image Optimization

-10%

Potential reduce by 19.5 kB

Original 194.5 kB
After minification 174.9 kB

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. Rokka images are well optimized though.

JavaScript Optimization

-56%

Potential reduce by 241.1 kB

Original 428.9 kB
After minification 410.6 kB
After compression 187.8 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 241.1 kB or 56% of the original size.

CSS Optimization

-84%

Potential reduce by 60.1 kB

Original 71.8 kB
After minification 54.4 kB
After compression 11.7 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. Rokka.jp needs all CSS files to be minified and compressed as it can save up to 60.1 kB or 84% of the original size.

Requests Now

After Optimization

The browser has sent 47 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Rokka. 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 6 to 1 for CSS and as a result speed up the page load time.

Areas of Improvement

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

High

Serves images with low resolution

Low

Detected JavaScript libraries

Search Engine Optimization Advices

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/).

High

Document doesn't use legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

Language Detected

JA
Language Claimed

JA
Encoding

UTF-8

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

rokka.jp

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

Report Summary

Performance

Accessibility

Best Practices

SEO

横浜市交通局資産活用ポータル | トップ

Page Load Speed

First Response

Resources Loaded

Page Rendered

About Website

Key Findings

Performance Metrics

Measured Metrics

FCP (First Contentful Paint)

LCP (Largest Contentful Paint)

SI (Speed Index)

TBT (Total Blocking Time)

CLS (Cumulative Layout Shift)

TTI (Time to Interactive)