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Report Summary

  • 0

    Performance

  • 0

    Accessibility

  • 0

    Best Practices

  • 0

    SEO

idi.ntnu.no

Department of Computer Science (IDI) - NTNU

Page Load Speed

4.5 sec in total

First Response

353 ms

Resources Loaded

4 sec

Page Rendered

139 ms

idi.ntnu.no screenshot

About Website

Click here to check amazing IDI NTNU content for Norway. Otherwise, check out these important facts you probably never knew about idi.ntnu.no

The Department of Computer Science (IDI) conducts research in the fields of: artifical intelligence (AI), big data, computer architecture, computer graphics, computer security, databases, human comput...

Visit idi.ntnu.no

Key Findings

We analyzed Idi.ntnu.no page load time and found that the first response time was 353 ms and then it took 4.1 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

idi.ntnu.no performance score

0

Network Requests Diagram

idi.ntnu.no

353 ms

810 ms

aui.css

248 ms

main.css

358 ms

main.css

239 ms

Our browser made a total of 38 requests to load all elements on the main page. We found that 3% of them (1 request) were addressed to the original Idi.ntnu.no, 66% (25 requests) were made to Ntnu.edu and 11% (4 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (1.2 sec) relates to the external source Ntnu.edu.

Page Optimization Overview & Recommendations

Page size can be reduced by 920.5 kB (77%)

Content Size

1.2 MB

After Optimization

281.2 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Idi.ntnu.no main page is 1.2 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 707.5 kB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 36.5 kB

  • Original 45.7 kB
  • After minification 45.1 kB
  • After compression 9.2 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. 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 36.5 kB or 80% of the original size.

Image Optimization

-12%

Potential reduce by 62 B

  • Original 512 B
  • After minification 450 B

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, IDI NTNU needs image optimization as it can save up to 62 B or 12% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-72%

Potential reduce by 510.5 kB

  • Original 707.5 kB
  • After minification 632.2 kB
  • After compression 197.0 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 510.5 kB or 72% of the original size.

CSS Optimization

-83%

Potential reduce by 373.5 kB

  • Original 448.0 kB
  • After minification 446.7 kB
  • After compression 74.6 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. Idi.ntnu.no needs all CSS files to be minified and compressed as it can save up to 373.5 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 20 (69%)

Requests Now

29

After Optimization

9

  • Images
  • JavaScript
  • CSS

The browser has sent 29 CSS, Javascripts, AJAX and image requests in order to completely render the main page of IDI NTNU. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 14 to 1 for JavaScripts and from 8 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

idi.ntnu.no

idi.ntnu.no

353 ms

810 ms

aui.css

aui.css

248 ms

main.css

main.css

358 ms

main.css

main.css

239 ms

barebone.jsp

barebone.jsp

1230 ms

main.css

main.css

369 ms

font-awesome.min.css

font-awesome.min.css

6 ms

css

css

25 ms

jquery.min.js

jquery.min.js

31 ms

underscore-min.js

underscore-min.js

238 ms

jquerySlider.js

jquerySlider.js

366 ms

jQerySlider.css

jQerySlider.css

366 ms

jquery.tablesorter.js

jquery.tablesorter.js

368 ms

main.js

main.js

469 ms

ntnu_init_javascript.js

ntnu_init_javascript.js

477 ms

soundmanager2-nodebug-jsmin.js

soundmanager2-nodebug-jsmin.js

481 ms

nb_NO.png

nb_NO.png

120 ms

f1c363f4-fd8c-4381-8d68-c34f05962a41

f1c363f4-fd8c-4381-8d68-c34f05962a41

606 ms

087d9296-8905-419c-9a46-5863b789fb76

087d9296-8905-419c-9a46-5863b789fb76

251 ms

55293c29-7ff2-4055-a7a6-14e70ae02a28

55293c29-7ff2-4055-a7a6-14e70ae02a28

528 ms

b3e79966-9a60-4fbb-9a70-832bf375053f

b3e79966-9a60-4fbb-9a70-832bf375053f

714 ms

122 ms

cJZKeOuBrn4kERxqtaUH3aCWcynf_cDxXwCLxiixG1c.ttf

cJZKeOuBrn4kERxqtaUH3aCWcynf_cDxXwCLxiixG1c.ttf

43 ms

DXI1ORHCpsQm3Vp6mXoaTYnF5uFdDttMLvmWuJdhhgs.ttf

DXI1ORHCpsQm3Vp6mXoaTYnF5uFdDttMLvmWuJdhhgs.ttf

43 ms

MTP_ySUJH_bn48VBG8sNSonF5uFdDttMLvmWuJdhhgs.ttf

MTP_ySUJH_bn48VBG8sNSonF5uFdDttMLvmWuJdhhgs.ttf

77 ms

k3k702ZOKiLJc3WVjuplzInF5uFdDttMLvmWuJdhhgs.ttf

k3k702ZOKiLJc3WVjuplzInF5uFdDttMLvmWuJdhhgs.ttf

56 ms

logo_ntnu.svg

logo_ntnu.svg

218 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

23 ms

analytics.js

analytics.js

23 ms

collect

collect

12 ms

collect

collect

62 ms

116 ms

330 ms

ga-audiences

ga-audiences

41 ms

121 ms

available_languages.jsp

available_languages.jsp

120 ms

121 ms

SEO Factors

idi.ntnu.no SEO score

0

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Idi.ntnu.no can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that Idi.ntnu.no 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

idi.ntnu.no

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