Access isi-education.com. ISI Japanese Language School

name

value

score

weighting

FCP (First Contentful Paint)

Value5.7 s

5/100

10%

LCP (Largest Contentful Paint)

Value19.6 s

0/100

25%

SI (Speed Index)

Value15.0 s

1/100

10%

TBT (Total Blocking Time)

Value1,300 ms

18/100

30%

CLS (Cumulative Layout Shift)

Value0.765

5/100

15%

TTI (Time to Interactive)

Value24.4 s

0/100

10%

isi-education.com

540 ms

www.isi-education.com

1499 ms

style.css

510 ms

css

51 ms

css

69 ms

Our browser made a total of 90 requests to load all elements on the main page. We found that 84% of them (76 requests) were addressed to the original Isi-education.com, 3% (3 requests) were made to Cdn.jsdelivr.net and 3% (3 requests) were made to Cdnjs.cloudflare.com. The less responsive or slowest element that took the longest time to load (2 sec) belongs to the original domain Isi-education.com.

Content Size

752.9 kB

After Optimization

532.6 kB

In fact, the total size of Isi-education.com main page is 752.9 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. 55% of websites need less resources to load. Images take 474.6 kB which makes up the majority of the site volume.

HTML Optimization

-87%

Potential reduce by 87.0 kB

Original 100.6 kB
After minification 76.8 kB
After compression 13.5 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 23.8 kB, which is 24% 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 87.0 kB or 87% of the original size.

Image Optimization

-9%

Potential reduce by 42.3 kB

Original 474.6 kB
After minification 432.3 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. ISI Education images are well optimized though.

JavaScript Optimization

-50%

Potential reduce by 83.9 kB

Original 168.9 kB
After minification 167.5 kB
After compression 85.0 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 83.9 kB or 50% of the original size.

CSS Optimization

-81%

Potential reduce by 7.1 kB

Original 8.8 kB
After minification 5.1 kB
After compression 1.7 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. Isi-education.com needs all CSS files to be minified and compressed as it can save up to 7.1 kB or 81% of the original size.

Requests Now

After Optimization

The browser has sent 84 CSS, Javascripts, AJAX and image requests in order to completely render the main page of ISI Education. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 16 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 usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

High

[aria-*] attributes do not match their roles

High

[aria-hidden="true"] elements contain focusable descendents

High

ARIA input fields do not have accessible names

High

Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.

High

ARIA toggle fields do not have accessible names

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

High

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

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

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

High

Page has valid source maps

Search Engine Optimization Advices

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

High

Links do not have descriptive text

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

High

Links are not crawlable

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

EN
Language Claimed

N/A
Encoding

UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Isi-education.com can be misinterpreted by Google and other search engines. Our service has detected that English 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 Isi-education.com 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

isi-education.com

Open Graph description is not detected on the main page of ISI Education. 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

ISI Japanese Language School - Official English Website

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

isi-education.com

www.isi-education.com

style.css

css

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

isi-education.com

www.isi-education.com

style.css

css

css

all.min.css

wen-skill-charts-public.css

jquery-1.12.2.min.js

jquery-migrate-1.2.1.min.js

jquery.appear.js

jquery.easypiechart.js

wen-skill-charts-public.js

swiper.min.css

element.js

jquery.matchHeight-min.js

wp-embed.min.js

slick.min.js

masonry.pkgd.min.js

common.js

top.js

visual.js

swiper.min.js

wp-emoji-release.min.js

gtm.js

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