4.3 sec in total
1.3 sec
2.9 sec
119 ms
Click here to check amazing Voip Ntnu content for Taiwan. Otherwise, check out these important facts you probably never knew about voip.ntnu.edu.tw
Visit voip.ntnu.edu.twWe analyzed Voip.ntnu.edu.tw page load time and found that the first response time was 1.3 sec and then it took 3 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.
voip.ntnu.edu.tw performance score
name
value
score
weighting
Value3.8 s
28/100
10%
Value3.9 s
53/100
25%
Value4.4 s
75/100
10%
Value20 ms
100/100
30%
Value0
100/100
15%
Value4.0 s
88/100
10%
1345 ms
440 ms
877 ms
686 ms
712 ms
Our browser made a total of 29 requests to load all elements on the main page. We found that all of those requests were addressed to Voip.ntnu.edu.tw and no external sources were called. The less responsive or slowest element that took the longest time to load (1.5 sec) belongs to the original domain Voip.ntnu.edu.tw.
Page size can be reduced by 14.7 kB (80%)
18.5 kB
3.7 kB
In fact, the total size of Voip.ntnu.edu.tw main page is 18.5 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. Only 10% of websites need less resources to load. HTML takes 18.5 kB which makes up the majority of the site volume.
Potential reduce by 14.7 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. This page needs HTML code to be minified as it can gain 4.9 kB, which is 27% 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 14.7 kB or 80% of the original size.
Number of requests can be reduced by 8 (29%)
28
20
The browser has sent 28 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Voip Ntnu. 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.
voip.ntnu.edu.tw
1345 ms
sub2_227.gif
440 ms
sub2_01.gif
877 ms
sub2_03.gif
686 ms
sub2_04.gif
712 ms
sub2_05.gif
725 ms
sub2_06.gif
627 ms
sub2_07.gif
664 ms
sub2_226.gif
841 ms
sub2_09.gif
703 ms
sub2_10.gif
720 ms
sub2_12.gif
746 ms
sub2_13.gif
767 ms
sub2_12-2..gif
860 ms
sub2_18.gif
896 ms
sub2_19.gif
919 ms
sub2_192365.gif
942 ms
010101.gif
982 ms
bf001.gif
1013 ms
bf002.gif
1075 ms
bf090624-2.gif
1113 ms
vf090629.gif
1123 ms
sub2_17.gif
966 ms
sub2_08.gif
1509 ms
sub2_14.gif
1051 ms
acglink.gif
1081 ms
sub2_21.gif
1119 ms
sub2_228.gif
1124 ms
sub2_23.gif
1196 ms
voip.ntnu.edu.tw accessibility score
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
Internationalization and localization
These are opportunities to improve the interpretation of your content by users in different locales.
Impact
Issue
<html> element does not have a [lang] attribute
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
Image elements do not have [alt] attributes
Links do not have a discernible name
voip.ntnu.edu.tw best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Includes front-end JavaScript libraries with known security vulnerabilities
Ensure CSP is effective against XSS attacks
User Experience
Impact
Issue
Displays images with incorrect aspect ratio
General
Impact
Issue
Detected JavaScript libraries
Page has valid source maps
voip.ntnu.edu.tw SEO score
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
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
Document uses legible font sizes
N/A
N/A
BIG5
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Voip.ntnu.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 Voip.ntnu.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.
voip.ntnu.edu.tw
Open Graph description is not detected on the main page of Voip Ntnu. 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: