Access rastaiwan.com.tw. 兒童美語高雄 | 中美•美語學苑高雄英文補習班 Robert's American School

name

value

score

weighting

FCP (First Contentful Paint)

Value3.3 s

40/100

10%

LCP (Largest Contentful Paint)

Value9.9 s

0/100

25%

SI (Speed Index)

Value9.5 s

12/100

10%

TBT (Total Blocking Time)

Value1,700 ms

11/100

30%

CLS (Cumulative Layout Shift)

Value0.003

100/100

15%

TTI (Time to Interactive)

Value20.5 s

2/100

10%

745 ms

rokbox.css

106 ms

menu-baa264f790a122910bc2cca2fb9b9a8e.css

114 ms

grid-responsive.css

104 ms

grid-responsive.css

84 ms

Our browser made a total of 85 requests to load all elements on the main page. We found that 52% of them (44 requests) were addressed to the original Rastaiwan.com.tw, 19% (16 requests) were made to Maps.googleapis.com and 16% (14 requests) were made to Google.com. The less responsive or slowest element that took the longest time to load (745 ms) belongs to the original domain Rastaiwan.com.tw.

Content Size

2.4 MB

After Optimization

1.3 MB

In fact, the total size of Rastaiwan.com.tw main page is 2.4 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. 60% of websites need less resources to load. Javascripts take 1.1 MB which makes up the majority of the site volume.

HTML Optimization

-86%

Potential reduce by 38.1 kB

Original 44.3 kB
After minification 39.3 kB
After compression 6.2 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 5.1 kB, which is 11% 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 38.1 kB or 86% of the original size.

Image Optimization

-3%

Potential reduce by 26.5 kB

Original 942.5 kB
After minification 916.0 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. Rastaiwan images are well optimized though.

JavaScript Optimization

-70%

Potential reduce by 772.8 kB

Original 1.1 MB
After minification 1.1 MB
After compression 330.5 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 772.8 kB or 70% of the original size.

CSS Optimization

-83%

Potential reduce by 275.0 kB

Original 332.4 kB
After minification 323.8 kB
After compression 57.4 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. Rastaiwan.com.tw needs all CSS files to be minified and compressed as it can save up to 275.0 kB or 83% of the original size.

Requests Now

After Optimization

The browser has sent 80 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Rastaiwan. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 26 to 1 for JavaScripts and from 14 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

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

Buttons do not have an accessible name

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 legibility of your content.

High

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

These are opportunities to improve keyboard navigation in your application.

High

Heading elements are not in a sequentially-descending order

Areas of Improvement

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

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

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

EN
Encoding

UTF-8

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

rastaiwan.com.tw

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

兒童美語高雄 | 中美•美語學苑 高雄英文補習班 Robert's American School | 高雄市

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

rokbox.css

menu-baa264f790a122910bc2cca2fb9b9a8e.css

grid-responsive.css

grid-responsive.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

rokbox.css

menu-baa264f790a122910bc2cca2fb9b9a8e.css

grid-responsive.css

grid-responsive.css

bootstrap.css

master-4248b21fcca9e96193dc23519ce1a6d7.css

master-opera.css

1200fixed.css

thirdparty-k2.css

custom.css

template.css

slideshow.css

style.css

mootools-core.js

core.js

caption.js

mootools-more.js

rokbox.js

gantry-totop.js

browser-engines.js

slideshow.js

moofx.js

rokmediaqueries.js

mootools-mobile.js

maps

maps

top-img-bg.jpg

bottom-img-bg.jpg

overlay-pattern.png

ff8f44f9-d1d8-4dae-d78d-625157f7ea53.jpg

216a5873-b968-4797-8661-2236aad81f50.jpg

7a5acb53-45d6-4b51-9b77-9a775b63ba75.jpg

ff8f44f9-d1d8-4dae-d78d-625157f7ea53-thumb.jpg

216a5873-b968-4797-8661-2236aad81f50-thumb.jpg

7a5acb53-45d6-4b51-9b77-9a775b63ba75-thumb.jpg

divider.png

slideshow-arrows.png

body-angle.png

ras_thumb.jpg

school2.jpg

school1.jpg

likeusfb.png

noise.png

casper-webfont.woff

兒童美語高雄 | 中美•美語學苑高雄英文補習班 Robert's American School | 高雄市