Report Summary

  • 28

    Performance

    Renders faster than
    48% of other websites

  • 70

    Accessibility

    Visual factors better than
    that of 36% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 67

    SEO

    Google-friendlier than
    25% of websites

digitalarchives.tw

典藏台灣 Taiwan Digitalarchives

Page Load Speed

4.9 sec in total

First Response

994 ms

Resources Loaded

3.6 sec

Page Rendered

307 ms

digitalarchives.tw screenshot

About Website

Click here to check amazing Digitalarchives content for Taiwan. Otherwise, check out these important facts you probably never knew about digitalarchives.tw

典藏台灣 Taiwan Digitalarchives ,是中央研究院數位文化中心呈現數位典藏歷年成果與服務的網站平台 ,誠摯邀請您參與科技與文化的知識饗宴 ...

Visit digitalarchives.tw

Key Findings

We analyzed Digitalarchives.tw page load time and found that the first response time was 994 ms and then it took 4 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.

Performance Metrics

digitalarchives.tw performance score

28

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.7 s

13/100

10%

LCP (Largest Contentful Paint)

Value4.8 s

31/100

25%

SI (Speed Index)

Value9.5 s

12/100

10%

TBT (Total Blocking Time)

Value2,230 ms

6/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value14.9 s

8/100

10%

Network Requests Diagram

digitalarchives.tw

994 ms

main.css

411 ms

index.css

417 ms

ics.js

1499 ms

autocomplete.css

414 ms

Our browser made a total of 56 requests to load all elements on the main page. We found that 45% of them (25 requests) were addressed to the original Digitalarchives.tw, 13% (7 requests) were made to Apis.google.com and 9% (5 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (1.5 sec) relates to the external source Char.iis.sinica.edu.tw.

Page Optimization Overview & Recommendations

Page size can be reduced by 740.9 kB (59%)

Content Size

1.3 MB

After Optimization

523.6 kB

In fact, the total size of Digitalarchives.tw 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. 50% of websites need less resources to load. Javascripts take 643.0 kB which makes up the majority of the site volume.

HTML Optimization

-75%

Potential reduce by 45.9 kB

  • Original 61.6 kB
  • After minification 59.6 kB
  • After compression 15.7 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 45.9 kB or 75% of the original size.

Image Optimization

-18%

Potential reduce by 51.3 kB

  • Original 291.6 kB
  • After minification 240.3 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. Obviously, Digitalarchives needs image optimization as it can save up to 51.3 kB or 18% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-65%

Potential reduce by 420.3 kB

  • Original 643.0 kB
  • After minification 627.7 kB
  • After compression 222.7 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 420.3 kB or 65% of the original size.

CSS Optimization

-83%

Potential reduce by 223.4 kB

  • Original 268.4 kB
  • After minification 262.2 kB
  • After compression 45.0 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. Digitalarchives.tw needs all CSS files to be minified and compressed as it can save up to 223.4 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 23 (44%)

Requests Now

52

After Optimization

29

The browser has sent 52 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Digitalarchives. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 21 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

digitalarchives.tw accessibility score

70

Accessibility Issues

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

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

High

Form elements do not have associated labels

High

<object> elements do not have alternate text

Internationalization and localization

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

Impact

Issue

High

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

Best Practices

digitalarchives.tw best practices score

58

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

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

digitalarchives.tw SEO score

67

Search Engine Optimization Advices

Content Best Practices

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

Impact

Issue

High

Document uses plugins

Language and Encoding

  • Language Detected

    ZH

  • Language Claimed

    N/A

  • Encoding

    BIG5

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Digitalarchives.tw can be misinterpreted by Google and other search engines. Our service has detected that Chinese 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 Digitalarchives.tw main page’s claimed encoding is big5. 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 Digitalarchives. 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: