Tools & Wizards About Us

Report Summary

  • 21

    Performance

    Renders faster than
    39% of other websites

  • 73

    Accessibility

    Visual factors better than
    that of 38% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 86

    SEO

    Google-friendlier than
    60% of websites

tas.edu.tw

Home - Taipei American School

Page Load Speed

3 sec in total

First Response

469 ms

Resources Loaded

2.2 sec

Page Rendered

251 ms

About Website

Visit tas.edu.tw now to see the best up-to-date Tas content for Taiwan and also check out these interesting facts you probably never knew about tas.edu.tw

Home - Taipei American School

Visit tas.edu.tw

Key Findings

We analyzed Tas.edu.tw page load time and found that the first response time was 469 ms and then it took 2.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

tas.edu.tw performance score

21

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.0 s

22/100

10%

LCP (Largest Contentful Paint)

Value17.5 s

0/100

25%

SI (Speed Index)

Value12.9 s

2/100

10%

TBT (Total Blocking Time)

Value1,580 ms

12/100

30%

CLS (Cumulative Layout Shift)

Value0.079

94/100

15%

TTI (Time to Interactive)

Value17.4 s

4/100

10%

Network Requests Diagram

tas.edu.tw

469 ms

www.tas.edu.tw

691 ms

styles.cfm

63 ms

ss.css

16 ms

jquery.min.js

31 ms

Our browser made a total of 101 requests to load all elements on the main page. We found that 48% of them (48 requests) were addressed to the original Tas.edu.tw, 22% (22 requests) were made to Newjs.finalsite.com and 8% (8 requests) were made to Newcss.finalsite.com. The less responsive or slowest element that took the longest time to load (691 ms) belongs to the original domain Tas.edu.tw.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.3 MB (28%)

Content Size

4.6 MB

After Optimization

3.3 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Tas.edu.tw main page is 4.6 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. 70% of websites need less resources to load. Images take 3.0 MB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 55.6 kB

  • Original 69.2 kB
  • After minification 63.0 kB
  • After compression 13.6 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 55.6 kB or 80% of the original size.

Image Optimization

-3%

Potential reduce by 97.8 kB

  • Original 3.0 MB
  • After minification 2.9 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. Tas images are well optimized though.

JavaScript Optimization

-70%

Potential reduce by 814.7 kB

  • Original 1.2 MB
  • After minification 1.1 MB
  • After compression 351.8 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 814.7 kB or 70% of the original size.

CSS Optimization

-81%

Potential reduce by 297.7 kB

  • Original 367.4 kB
  • After minification 326.5 kB
  • After compression 69.7 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. Tas.edu.tw needs all CSS files to be minified and compressed as it can save up to 297.7 kB or 81% of the original size.

Requests Breakdown

Number of requests can be reduced by 52 (55%)

Requests Now

95

After Optimization

43

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 95 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Tas. 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 19 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

tas.edu.tw accessibility score

73

Accessibility Issues

ARIA

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.

Impact

Issue

High

[aria-*] attributes do not match their roles

High

ARIA input fields do not have accessible names

High

[aria-*] attributes do not have valid values

High

ARIA IDs are not unique

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

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

Names and labels

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.

Impact

Issue

High

Image elements do not have [alt] attributes

Tables and lists

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

Impact

Issue

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

Best Practices

tas.edu.tw best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

SEO Factors

tas.edu.tw SEO score

86

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

High

Links are not crawlable

Content Best Practices

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

Impact

Issue

High

Image elements do not have [alt] attributes

Mobile Friendly

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/).

Impact

Issue

High

Document uses legible font sizes

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    N/A

  • Encoding

    ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Tas.edu.tw 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 Tas.edu.tw main page’s claimed encoding is iso-8859-1. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

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