Access i-kahaku.jp. 愛媛県総合科学博物館

name

value

score

weighting

FCP (First Contentful Paint)

Value6.9 s

1/100

10%

LCP (Largest Contentful Paint)

Value12.6 s

0/100

25%

SI (Speed Index)

Value12.5 s

3/100

10%

TBT (Total Blocking Time)

Value810 ms

36/100

30%

CLS (Cumulative Layout Shift)

Value0.353

31/100

15%

TTI (Time to Interactive)

Value14.3 s

9/100

10%

i-kahaku.jp

1355 ms

analytics.js

363 ms

countdown.js

370 ms

AC_RunActiveContent.js

384 ms

jquery-1.9.0.min.js

1336 ms

Our browser made a total of 140 requests to load all elements on the main page. We found that 66% of them (92 requests) were addressed to the original I-kahaku.jp, 24% (34 requests) were made to Static.xx.fbcdn.net and 4% (6 requests) were made to Scontent.xx.fbcdn.net. The less responsive or slowest element that took the longest time to load (2.5 sec) belongs to the original domain I-kahaku.jp.

Content Size

839.3 kB

After Optimization

644.4 kB

In fact, the total size of I-kahaku.jp main page is 839.3 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. 50% of websites need less resources to load. Images take 587.8 kB which makes up the majority of the site volume.

HTML Optimization

-85%

Potential reduce by 69.8 kB

Original 81.7 kB
After minification 51.1 kB
After compression 11.9 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 30.6 kB, which is 37% 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 69.8 kB or 85% of the original size.

Image Optimization

-3%

Potential reduce by 18.1 kB

Original 587.8 kB
After minification 569.7 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. I Kahaku images are well optimized though.

JavaScript Optimization

-63%

Potential reduce by 106.6 kB

Original 169.2 kB
After minification 145.2 kB
After compression 62.6 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 106.6 kB or 63% of the original size.

CSS Optimization

-61%

Potential reduce by 395 B

Original 647 B
After minification 442 B
After compression 252 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. I-kahaku.jp needs all CSS files to be minified and compressed as it can save up to 395 B or 61% of the original size.

Requests Now

137

After Optimization

The browser has sent 137 CSS, Javascripts, AJAX and image requests in order to completely render the main page of I Kahaku. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 30 to 1 for JavaScripts and from 8 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

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

High

Definition list items are not wrapped in <dl> elements

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.

These are opportunities to improve keyboard navigation in your application.

High

[id] attributes on active, focusable elements are not unique

High

Heading elements are not in a sequentially-descending order

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

<frame> or <iframe> elements do not have a title

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

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

High

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

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

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

High

Tap targets are not sized appropriately

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 I-kahaku.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 I-kahaku.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

i-kahaku.jp

Open Graph description is not detected on the main page of I Kahaku. 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

愛媛県総合科学博物館

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

i-kahaku.jp

analytics.js

countdown.js

AC_RunActiveContent.js

jquery-1.9.0.min.js

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

i-kahaku.jp

analytics.js

countdown.js

AC_RunActiveContent.js

jquery-1.9.0.min.js

jquery.bxslider.js

jquery.cookie.min.js

redirect.js

jump.css

analytics.js

collect

new_back.jpg

logo.gif

inquiry.gif

header_01.gif

header_02.gif

header_03.gif

header_04.gif

sp.png

01.jpg

02.jpg

03.jpg

04.jpg

z_s_01.gif

z_s_02.gif

banner_p.jpg

banner6.jpg

facebook.gif

kids_s.gif

b1.gif

b2.gif

b9.gif

b3.gif

b_owabi.gif

b10.gif

b4.gif

b5.gif

b11.gif

b6.gif

b12.gif

leaflet.jpg

movie.jpg

s_banner.gif