Tools & Wizards About Us
bode.ethz.ch screenshot

Report Summary

  • 23

    Performance

    Renders faster than
    42% of other websites

  • 89

    Accessibility

    Visual factors better than
    that of 72% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 71

    SEO

    Google-friendlier than
    30% of websites

bode.ethz.ch

Homepage – Bode Research Group | ETH Zurich

Page Load Speed

6.3 sec in total

First Response

599 ms

Resources Loaded

5.5 sec

Page Rendered

191 ms

bode.ethz.ch screenshot

About Website

Welcome to bode.ethz.ch homepage info - get ready to check Bode ETH Z best content for Switzerland right away, or after learning these important things about bode.ethz.ch

Visit bode.ethz.ch

Key Findings

We analyzed Bode.ethz.ch page load time and found that the first response time was 599 ms and then it took 5.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.

Performance Metrics

bode.ethz.ch performance score

23

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value10.1 s

0/100

10%

LCP (Largest Contentful Paint)

Value14.9 s

0/100

25%

SI (Speed Index)

Value13.5 s

2/100

10%

TBT (Total Blocking Time)

Value900 ms

31/100

30%

CLS (Cumulative Layout Shift)

Value0.121

84/100

15%

TTI (Time to Interactive)

Value15.6 s

6/100

10%

Network Requests Diagram

bode.ethz.ch

599 ms

www.bode.ethz.ch

2317 ms

default.css

225 ms

style960.css

206 ms

default.js

709 ms

Our browser made a total of 32 requests to load all elements on the main page. We found that 97% of them (31 requests) were addressed to the original Bode.ethz.ch, 3% (1 request) were made to Statse.webtrendslive.com. The less responsive or slowest element that took the longest time to load (2.3 sec) belongs to the original domain Bode.ethz.ch.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.3 MB (46%)

Content Size

2.9 MB

After Optimization

1.6 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Bode.ethz.ch main page is 2.9 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. 35% of websites need less resources to load. Images take 1.7 MB which makes up the majority of the site volume.

HTML Optimization

-86%

Potential reduce by 46.1 kB

  • Original 53.6 kB
  • After minification 32.5 kB
  • After compression 7.5 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 21.1 kB, which is 39% 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 46.1 kB or 86% of the original size.

Image Optimization

-19%

Potential reduce by 333.0 kB

  • Original 1.7 MB
  • After minification 1.4 MB

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, Bode ETH Z needs image optimization as it can save up to 333.0 kB or 19% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-79%

Potential reduce by 640.3 kB

  • Original 807.1 kB
  • After minification 612.0 kB
  • After compression 166.8 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 640.3 kB or 79% of the original size.

CSS Optimization

-89%

Potential reduce by 321.8 kB

  • Original 360.7 kB
  • After minification 321.3 kB
  • After compression 38.9 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. Bode.ethz.ch needs all CSS files to be minified and compressed as it can save up to 321.8 kB or 89% of the original size.

Requests Breakdown

Number of requests can be reduced by 7 (25%)

Requests Now

28

After Optimization

21

  • Images
  • JavaScript
  • CSS

The browser has sent 28 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Bode ETH Z. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

bode.ethz.ch

bode.ethz.ch

599 ms

www.bode.ethz.ch

www.bode.ethz.ch

2317 ms

default.css

default.css

225 ms

style960.css

style960.css

206 ms

default.js

default.js

709 ms

patch.css

patch.css

222 ms

webtrends.datacollector.js

webtrends.datacollector.js

222 ms

turquoise960.png

turquoise960.png

109 ms

eth_logo.png

eth_logo.png

101 ms

eth_logo_kurz_schwarz_D_print_300dpi.png

eth_logo_kurz_schwarz_D_print_300dpi.png

109 ms

search_btn.png

search_btn.png

101 ms

image.imageformat.carousel.307731491.png

image.imageformat.carousel.307731491.png

1689 ms

image.imageformat.carousel.885568901.png

image.imageformat.carousel.885568901.png

398 ms

image.imageformat.carousel.1471402837.png

image.imageformat.carousel.1471402837.png

692 ms

image.imageformat.carousel.1897294491.png

image.imageformat.carousel.1897294491.png

891 ms

image.imageformat.carousel.1742723809.png

image.imageformat.carousel.1742723809.png

847 ms

image.imageformat.context.2015647216.png

image.imageformat.context.2015647216.png

213 ms

image.imageformat.context.1970905184.png

image.imageformat.context.1970905184.png

320 ms

empty_pixel.png

empty_pixel.png

426 ms

eth_website_link_elements.png

eth_website_link_elements.png

492 ms

eth_website_button_pause_play.png

eth_website_button_pause_play.png

513 ms

eth_website_buttons.png

eth_website_buttons.png

577 ms

sm_facebook_grey.png

sm_facebook_grey.png

614 ms

sm_twitter_grey_en.png

sm_twitter_grey_en.png

671 ms

sm_empfehlen.png

sm_empfehlen.png

720 ms

eth_website_icons.png

eth_website_icons.png

766 ms

webtrends.min.js

webtrends.min.js

770 ms

_jcr_content.statusbar.html

_jcr_content.statusbar.html

797 ms

_jcr_content.navigation.html

_jcr_content.navigation.html

834 ms

webtrends.replicate.js

webtrends.replicate.js

100 ms

wtid.js

wtid.js

62 ms

print.css

print.css

108 ms

Accessibility Review

bode.ethz.ch accessibility score

89

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

button, link, and menuitem elements do not have accessible names.

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

Buttons do not have an accessible name

High

Links do not have a discernible name

Best Practices

bode.ethz.ch best practices score

75

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

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

SEO Factors

bode.ethz.ch SEO score

71

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

Links do not have descriptive text

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 Bode.ethz.ch 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 Bode.ethz.ch 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

bode.ethz.ch

Open Graph description is not detected on the main page of Bode ETH Z. 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: