Access froebel-kan.co.jp. フレーベル館

name

value

score

weighting

FCP (First Contentful Paint)

Value7.7 s

0/100

10%

LCP (Largest Contentful Paint)

Value16.6 s

0/100

25%

SI (Speed Index)

Value14.3 s

1/100

10%

TBT (Total Blocking Time)

Value260 ms

83/100

30%

CLS (Cumulative Layout Shift)

Value0.26

47/100

15%

TTI (Time to Interactive)

Value16.7 s

5/100

10%

froebel-kan.co.jp

771 ms

www.froebel-kan.co.jp

967 ms

add.css

346 ms

layout.css

341 ms

home.css

879 ms

Our browser made a total of 83 requests to load all elements on the main page. We found that 98% of them (81 requests) were addressed to the original Froebel-kan.co.jp, 2% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (1.5 sec) belongs to the original domain Froebel-kan.co.jp.

Content Size

1.3 MB

After Optimization

765.4 kB

In fact, the total size of Froebel-kan.co.jp main page is 1.3 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. 40% of websites need less resources to load. Images take 837.5 kB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 24.9 kB

Original 30.9 kB
After minification 27.2 kB
After compression 5.9 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 3.7 kB, which is 12% 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 24.9 kB or 81% of the original size.

Image Optimization

-24%

Potential reduce by 200.5 kB

Original 837.5 kB
After minification 636.9 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. Obviously, Froebel Kan needs image optimization as it can save up to 200.5 kB or 24% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-68%

Potential reduce by 229.7 kB

Original 337.3 kB
After minification 295.2 kB
After compression 107.6 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 229.7 kB or 68% of the original size.

CSS Optimization

-86%

Potential reduce by 92.3 kB

Original 107.1 kB
After minification 88.0 kB
After compression 14.9 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. Froebel-kan.co.jp needs all CSS files to be minified and compressed as it can save up to 92.3 kB or 86% of the original size.

Requests Now

After Optimization

The browser has sent 79 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Froebel Kan. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 13 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

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

High

<html> element does not have a [lang] attribute

High

[lang] attributes do not have a valid value

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

Form elements do not have associated labels

High

Links do not have a discernible name

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

High

Browser errors were logged to the console

Search Engine Optimization Advices

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

High

Links are not crawlable

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

High

Image elements do not have [alt] attributes

Language and Encoding

Language Detected

JA
Language Claimed

N/A
Encoding

UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Froebel-kan.co.jp can be misinterpreted by Google and other search engines. Our service has detected that Japanese 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 Froebel-kan.co.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

froebel-kan.co.jp

Open Graph description is not detected on the main page of Froebel Kan. 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

フレーベル館

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

froebel-kan.co.jp

www.froebel-kan.co.jp

add.css

layout.css

home.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

froebel-kan.co.jp

www.froebel-kan.co.jp

add.css

layout.css

home.css

skin.css

common.js

jquery.js

jcarousellite_1.0.1.pack.js

http_getdata.js

ObjTree.js

jquery-1.4.2.min.js

jquery.easing.js

jquery.jcarousel.js

jquery.jcarousel.min.js

common.css

banner.css

smartRollover.js

jquery-1.7.1.min.js

side.js

bodyBg01_top.jpg

bodyBg02_top.jpg

logo.gif

icon01.gif

nav01_off.png

nav02_off.png

nav03_off.png

nav04_off.png

nav05_off.png

nav06_off.png

nav07_off.png

advertise_bg.png

%E3%83%89%E3%83%AD%E3%83%92%E3%83%A5%E3%83%BC%E3%83%90%E3%83%8A%E3%83%BC.jpg

icon_up.gif

%E3%81%B4%E3%82%93%E3%81%8F%E3%81%BE%E4%BE%BF%E5%B0%8F%E3%83%91%E3%83%8D%E3%83%AB.png

%E3%83%89%E3%83%AD%E3%83%92%E3%83%A5%E3%83%BC%E3%83%9F%E3%83%8B.jpg

minibanner1.jpg

navi_3_mini.png

minibanner.jpg

%E6%A3%AE%E3%81%AE%E6%9C%AC%E5%B1%8B%E3%81%95%E3%82%93%E5%B0%8F%E3%83%91%E3%83%8D%E3%83%AB.png

icon_down.gif

mainLeft_top.png

detailLeft_bg.png