Access japanheritage-kannmon.jp. 日本遺産　関門ノスタルジック海峡

name

value

score

weighting

FCP (First Contentful Paint)

Value3.9 s

26/100

10%

LCP (Largest Contentful Paint)

Value24.4 s

0/100

25%

SI (Speed Index)

Value6.9 s

34/100

10%

TBT (Total Blocking Time)

Value370 ms

71/100

30%

CLS (Cumulative Layout Shift)

Value0.025

100/100

15%

TTI (Time to Interactive)

Value17.3 s

4/100

10%

japanheritage-kannmon.jp

415 ms

japanheritage-kannmon.jp

503 ms

js

66 ms

common200324.css

82 ms

top240312.css

161 ms

Our browser made a total of 104 requests to load all elements on the main page. We found that 98% of them (102 requests) were addressed to the original Japanheritage-kannmon.jp, 1% (1 request) were made to Googletagmanager.com and 1% (1 request) were made to Code.jquery.com. The less responsive or slowest element that took the longest time to load (1.3 sec) belongs to the original domain Japanheritage-kannmon.jp.

Content Size

9.0 MB

After Optimization

8.9 MB

In fact, the total size of Japanheritage-kannmon.jp main page is 9.0 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. Only a small number of websites need less resources to load. Images take 9.0 MB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 25.1 kB

Original 32.7 kB
After minification 30.4 kB
After compression 7.7 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 25.1 kB or 77% of the original size.

Image Optimization

-1%

Potential reduce by 77.7 kB

Original 9.0 MB
After minification 8.9 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. Japanheritage Kannmon images are well optimized though.

JavaScript Optimization

-37%

Potential reduce by 1.6 kB

Original 4.4 kB
After minification 4.3 kB
After compression 2.8 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 1.6 kB or 37% of the original size.

CSS Optimization

-21%

Potential reduce by 1.7 kB

Original 8.1 kB
After minification 8.1 kB
After compression 6.5 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. Japanheritage-kannmon.jp needs all CSS files to be minified and compressed as it can save up to 1.7 kB or 21% of the original size.

Requests Now

After Optimization

The browser has sent 97 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Japanheritage Kannmon. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 10 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

These are opportunities to improve the legibility of your content.

High

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

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.

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

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.

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

Displays images with incorrect aspect ratio

High

Serves images with low resolution

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

Search Engine Optimization Advices

Format your HTML in a way that enables crawlers to better understand your app’s content.

High

Image elements do not have [alt] attributes

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 uses legible font sizes

Language and Encoding

Language Detected

EN
Language Claimed

JA
Encoding

UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Japanheritage-kannmon.jp can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it does not match the claimed Japanese language. Our system also found out that Japanheritage-kannmon.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

japanheritage-kannmon.jp

Open Graph description is not detected on the main page of Japanheritage Kannmon. 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

日本遺産 関門ノスタルジック海峡

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)

Network Requests Diagram

japanheritage-kannmon.jp

japanheritage-kannmon.jp

js

common200324.css

top240312.css

Page Optimization Overview & Recommendations

Content Size

After Optimization

HTML Optimization

Image Optimization

JavaScript Optimization

CSS Optimization

Requests Breakdown

Requests Now

After Optimization

Network Requests Diagram

japanheritage-kannmon.jp

japanheritage-kannmon.jp

js

common200324.css

top240312.css

humburger.css

animate.min.css

jquery-2.1.4.min.js

animatedModal.js

modal01.js

jquery.inview.js

imageeffect.js

bright.js

navToggle.js

news.js

easySlideText.js

spotimage1_14606087l.jpg

bg.jpg

mail.png

logo_heritage.png

kado_1.png

kado_2.png

kado_4.png

kado_3.png

story1_1a.jpg

story1_1b.jpg

story1_2a.jpg

story1_2b.jpg

story1_3a.jpg

story1_3b.jpg

icon_facebook.png

icon_youtube.png

bt_jp.png

menu_left.png

manu_listen.png

menu_right.png

manu_abouten.png

kadost_1.png

kadost_2.png

kadost_4.png

kadost_3.png

story2_1a.jpg

story2_1b.jpg

日本遺産　関門ノスタルジック海峡