Tools & Wizards About Us
nol.ntu.edu.tw screenshot

Report Summary

  • 0

    Performance

  • 33

    Accessibility

    Visual factors better than
    that of 18% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 64

    SEO

    Google-friendlier than
    24% of websites

nol.ntu.edu.tw

NTU Online臺大課程網(45)

Page Load Speed

6.8 sec in total

First Response

1.8 sec

Resources Loaded

4.9 sec

Page Rendered

111 ms

nol.ntu.edu.tw screenshot

About Website

Click here to check amazing Nol NTU content for Taiwan. Otherwise, check out these important facts you probably never knew about nol.ntu.edu.tw

Visit nol.ntu.edu.tw

Key Findings

We analyzed Nol.ntu.edu.tw page load time and found that the first response time was 1.8 sec and then it took 5 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster. This domain responded with an error, which can significantly jeopardize Nol.ntu.edu.tw rating and web reputation

Performance Metrics

nol.ntu.edu.tw performance score

0

Network Requests Diagram

nol.ntu.edu.tw

1756 ms

index.php

245 ms

frameup.php

245 ms

frameleft.php

679 ms

main.php

909 ms

Our browser made a total of 55 requests to load all elements on the main page. We found that all of those requests were addressed to Nol.ntu.edu.tw and no external sources were called. The less responsive or slowest element that took the longest time to load (1.8 sec) belongs to the original domain Nol.ntu.edu.tw.

Page Optimization Overview & Recommendations

Page size can be reduced by 31.3 kB (43%)

Content Size

72.7 kB

After Optimization

41.3 kB

  • HTML
  • Images
  • CSS

In fact, the total size of Nol.ntu.edu.tw main page is 72.7 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. 15% of websites need less resources to load. Images take 71.4 kB which makes up the majority of the site volume.

HTML Optimization

-51%

Potential reduce by 363 B

  • Original 708 B
  • After minification 650 B
  • After compression 345 B

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 363 B or 51% of the original size.

Image Optimization

-43%

Potential reduce by 30.7 kB

  • Original 71.4 kB
  • After minification 40.7 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. Obviously, Nol NTU needs image optimization as it can save up to 30.7 kB or 43% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

CSS Optimization

-56%

Potential reduce by 288 B

  • Original 518 B
  • After minification 409 B
  • After compression 230 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. Nol.ntu.edu.tw needs all CSS files to be minified and compressed as it can save up to 288 B or 56% of the original size.

Requests Breakdown

Number of requests can be reduced by 15 (29%)

Requests Now

52

After Optimization

37

  • AJAX
  • Images
  • CSS

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

Network Requests Diagram

nol.ntu.edu.tw

nol.ntu.edu.tw

1756 ms

index.php

index.php

245 ms

frameup.php

frameup.php

245 ms

frameleft.php

frameleft.php

679 ms

main.php

main.php

909 ms

UntitledFrame-3

UntitledFrame-3

450 ms

top-bk.gif

top-bk.gif

211 ms

menutop1.gif

menutop1.gif

419 ms

index_0.gif

index_0.gif

653 ms

index_1b.gif

index_1b.gif

419 ms

menutop01off.gif

menutop01off.gif

441 ms

menutop02off.gif

menutop02off.gif

625 ms

menutop03off.gif

menutop03off.gif

626 ms

menutop04off.gif

menutop04off.gif

651 ms

space.gif

space.gif

659 ms

font.css

font.css

603 ms

menutop01on.gif

menutop01on.gif

214 ms

menutop02on.gif

menutop02on.gif

223 ms

menutop03on.gif

menutop03on.gif

210 ms

menutop04on.gif

menutop04on.gif

221 ms

web.gif

web.gif

210 ms

web_search.gif

web_search.gif

222 ms

syllabus_01.gif

syllabus_01.gif

238 ms

syllabus_02.gif

syllabus_02.gif

245 ms

syllabus_03.gif

syllabus_03.gif

262 ms

syllabus_04.gif

syllabus_04.gif

262 ms

syl_g.gif

syl_g.gif

416 ms

syl_t.gif

syl_t.gif

440 ms

bullet_o.gif

bullet_o.gif

444 ms

syllabus_06.gif

syllabus_06.gif

456 ms

syllabus_10.gif

syllabus_10.gif

479 ms

syllabus_11.gif

syllabus_11.gif

482 ms

syllabus_12.gif

syllabus_12.gif

623 ms

B_COUbutton.png

B_COUbutton.png

658 ms

news.gif

news.gif

650 ms

arrow_blue.gif

arrow_blue.gif

666 ms

info.gif

info.gif

695 ms

arrow_yellow.gif

arrow_yellow.gif

700 ms

teacher_menu09_off.gif

teacher_menu09_off.gif

828 ms

leftmenu_off.gif

leftmenu_off.gif

856 ms

icon_speech.jpg

icon_speech.jpg

877 ms

icon_myntu.jpg

icon_myntu.jpg

877 ms

ucourselogo.jpg

ucourselogo.jpg

1351 ms

teacher_menu01_op.gif

teacher_menu01_op.gif

211 ms

teacher_menu01_on.gif

teacher_menu01_on.gif

222 ms

teacher_menu02_op.gif

teacher_menu02_op.gif

215 ms

teacher_menu02_on.gif

teacher_menu02_on.gif

224 ms

teacher_menu03_op.gif

teacher_menu03_op.gif

210 ms

teacher_menu03_on.gif

teacher_menu03_on.gif

222 ms

teacher_menu04_op.gif

teacher_menu04_op.gif

415 ms

teacher_menu04_on.gif

teacher_menu04_on.gif

419 ms

teacher_menu05_op.gif

teacher_menu05_op.gif

427 ms

teacher_menu05_on.gif

teacher_menu05_on.gif

440 ms

teacher_menu08_op.gif

teacher_menu08_op.gif

438 ms

teacher_menu08_on.gif

teacher_menu08_on.gif

441 ms

Accessibility Review

nol.ntu.edu.tw accessibility score

33

Accessibility Issues

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

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

nol.ntu.edu.tw best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

High

Browser errors were logged to the console

SEO Factors

nol.ntu.edu.tw SEO score

64

Search Engine Optimization Advices

Language and Encoding

  • Language Detected

    N/A

  • Language Claimed

    N/A

  • Encoding

    BIG5

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Nol.ntu.edu.tw can be misinterpreted by Google and other search engines. Unfortunately we cannot identify language used on the page (probably there is a mix of languages, too little text or something else) and no language is claimed in <html> or <meta> tags either. Our system also found out that Nol.ntu.edu.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

nol.ntu.edu.tw

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