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ntnu.edu screenshot

Report Summary

  • 15

    Performance

    Renders faster than
    27% of other websites

  • 96

    Accessibility

    Visual factors better than
    that of 88% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 88

    SEO

    Google-friendlier than
    65% of websites

ntnu.edu

Norwegian University of Science and Technology - NTNU

Page Load Speed

5 sec in total

First Response

425 ms

Resources Loaded

4.3 sec

Page Rendered

258 ms

ntnu.edu screenshot

About Website

Welcome to ntnu.edu homepage info - get ready to check NTNU best content for Norway right away, or after learning these important things about ntnu.edu

Norwegian University of Science and Technology. Located in Trondheim, Gjøvik and Ålesund. Specializing in technology and the natural sciences. 40 000 students.

Visit ntnu.edu

Key Findings

We analyzed Ntnu.edu page load time and found that the first response time was 425 ms and then it took 4.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.

Performance Metrics

ntnu.edu performance score

15

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value8.9 s

0/100

10%

LCP (Largest Contentful Paint)

Value16.3 s

0/100

25%

SI (Speed Index)

Value14.2 s

1/100

10%

TBT (Total Blocking Time)

Value3,930 ms

1/100

30%

CLS (Cumulative Layout Shift)

Value0.095

91/100

15%

TTI (Time to Interactive)

Value16.7 s

5/100

10%

Network Requests Diagram

ntnu.edu

425 ms

www.ntnu.edu

842 ms

aui.css

283 ms

main.css

366 ms

main.css

240 ms

Our browser made a total of 59 requests to load all elements on the main page. We found that 63% of them (37 requests) were addressed to the original Ntnu.edu, 10% (6 requests) were made to Fonts.gstatic.com and 5% (3 requests) were made to S.ytimg.com. The less responsive or slowest element that took the longest time to load (1.5 sec) belongs to the original domain Ntnu.edu.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.3 MB (76%)

Content Size

1.7 MB

After Optimization

417.5 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Ntnu.edu main page is 1.7 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. 60% of websites need less resources to load. Javascripts take 912.9 kB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 55.7 kB

  • Original 68.6 kB
  • After minification 67.9 kB
  • After compression 12.9 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 55.7 kB or 81% 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, 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

-70%

Potential reduce by 636.2 kB

  • Original 912.9 kB
  • After minification 837.4 kB
  • After compression 276.7 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 636.2 kB or 70% of the original size.

CSS Optimization

-83%

Potential reduce by 621.4 kB

  • Original 748.9 kB
  • After minification 747.4 kB
  • After compression 127.5 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. Ntnu.edu needs all CSS files to be minified and compressed as it can save up to 621.4 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 30 (63%)

Requests Now

48

After Optimization

18

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 48 CSS, Javascripts, AJAX and image requests in order to completely render the main page of 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 18 to 1 for JavaScripts and from 14 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

ntnu.edu

ntnu.edu

425 ms

www.ntnu.edu

www.ntnu.edu

842 ms

aui.css

aui.css

283 ms

main.css

main.css

366 ms

main.css

main.css

240 ms

miniCalender.css

miniCalender.css

241 ms

chosen.css

chosen.css

258 ms

jquery-ui.css

jquery-ui.css

275 ms

main.css

main.css

357 ms

barebone.jsp

barebone.jsp

1548 ms

main.css

main.css

519 ms

font-awesome.min.css

font-awesome.min.css

8 ms

css

css

30 ms

jquery.min.js

jquery.min.js

29 ms

underscore-min.js

underscore-min.js

410 ms

jquerySlider.js

jquerySlider.js

418 ms

jQerySlider.css

jQerySlider.css

473 ms

jquery.tablesorter.js

jquery.tablesorter.js

482 ms

moment.min.js

moment.min.js

543 ms

allDev.js

allDev.js

555 ms

main.js

main.js

589 ms

ntnu_init_javascript.js

ntnu_init_javascript.js

600 ms

soundmanager2-nodebug-jsmin.js

soundmanager2-nodebug-jsmin.js

644 ms

a89180a9-fbb6-464a-943e-406d83661dad

a89180a9-fbb6-464a-943e-406d83661dad

1250 ms

nb_NO.png

nb_NO.png

137 ms

49f84fec-d6d2-4f2e-ae54-2beb573f4289

49f84fec-d6d2-4f2e-ae54-2beb573f4289

718 ms

4ee844ee-21f7-4de8-bfa3-15c81d0060a0

4ee844ee-21f7-4de8-bfa3-15c81d0060a0

411 ms

f42e7cd0-0efd-4dd9-90fb-e4872335287c

f42e7cd0-0efd-4dd9-90fb-e4872335287c

273 ms

479fd341-2d11-40d1-8a6c-15a0f426380b

479fd341-2d11-40d1-8a6c-15a0f426380b

275 ms

14276474-fb38-4fce-83dd-6573acca64f4

14276474-fb38-4fce-83dd-6573acca64f4

468 ms

4d8ab939-a831-4dfa-8bf5-da92d2ca000d

4d8ab939-a831-4dfa-8bf5-da92d2ca000d

545 ms

b1269b1b-1a91-4870-95e4-aa442b488c28

b1269b1b-1a91-4870-95e4-aa442b488c28

411 ms

2a4dea95-775b-4f77-9055-40588aed63b8

2a4dea95-775b-4f77-9055-40588aed63b8

686 ms

7c70a179-3c0b-45b0-8e17-27552f9eb7ab

7c70a179-3c0b-45b0-8e17-27552f9eb7ab

486 ms

8874ab1c-8441-4b30-8bb2-42d5d1a8da25

8874ab1c-8441-4b30-8bb2-42d5d1a8da25

520 ms

bec65999-32f3-4357-8bf7-6362694c3795

bec65999-32f3-4357-8bf7-6362694c3795

1165 ms

585 ms

cJZKeOuBrn4kERxqtaUH3bO3LdcAZYWl9Si6vvxL-qU.woff

cJZKeOuBrn4kERxqtaUH3bO3LdcAZYWl9Si6vvxL-qU.woff

54 ms

DXI1ORHCpsQm3Vp6mXoaTaRDOzjiPcYnFooOUGCOsRk.woff

DXI1ORHCpsQm3Vp6mXoaTaRDOzjiPcYnFooOUGCOsRk.woff

53 ms

MTP_ySUJH_bn48VBG8sNSqRDOzjiPcYnFooOUGCOsRk.woff

MTP_ySUJH_bn48VBG8sNSqRDOzjiPcYnFooOUGCOsRk.woff

77 ms

k3k702ZOKiLJc3WVjuplzKRDOzjiPcYnFooOUGCOsRk.woff

k3k702ZOKiLJc3WVjuplzKRDOzjiPcYnFooOUGCOsRk.woff

70 ms

logo_ntnu.svg

logo_ntnu.svg

593 ms

PiolGPHu6Po

PiolGPHu6Po

125 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

34 ms

analytics.js

analytics.js

44 ms

collect

collect

23 ms

collect

collect

58 ms

www-embed-player-vflZsBgOl.css

www-embed-player-vflZsBgOl.css

71 ms

www-embed-player.js

www-embed-player.js

96 ms

base.js

base.js

158 ms

ga-audiences

ga-audiences

46 ms

yrK4EqpSRdoujKQmsJoZ5WaLgeULvcWnibQMQSxOOnM.js

yrK4EqpSRdoujKQmsJoZ5WaLgeULvcWnibQMQSxOOnM.js

9 ms

ad_status.js

ad_status.js

65 ms

CrYjSnGjrRCn0pd9VQsnFOvvDin1pK8aKteLpeZ5c0A.woff

CrYjSnGjrRCn0pd9VQsnFOvvDin1pK8aKteLpeZ5c0A.woff

108 ms

RxZJdnzeo3R5zSexge8UUbO3LdcAZYWl9Si6vvxL-qU.woff

RxZJdnzeo3R5zSexge8UUbO3LdcAZYWl9Si6vvxL-qU.woff

116 ms

138 ms

271 ms

137 ms

143 ms

Accessibility Review

ntnu.edu accessibility score

96

Accessibility Issues

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

Links do not have a discernible name

Best Practices

ntnu.edu 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

ntnu.edu SEO score

88

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

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

High

Tap targets are not sized appropriately

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 Ntnu.edu 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 Ntnu.edu 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

ntnu.edu

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