Access erdw.ethz.ch. Departement Erdwissenschaften: Startseite – Departement Erdwissenschaften

Report Summary

About Website

Click here to check amazing Erdw ETH Z content for Switzerland. Otherwise, check out these important facts you probably never knew about erdw.ethz.ch

Erdwissenschaften an der ETH Zürich zählt zu den top erdwissenschaftlichen Fakultäten und wurde im Bereich «Earth Sciences» unter die weltbesten Studiengänge gewählt. Unsere führende Stellung verdan...

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name

value

score

weighting

FCP (First Contentful Paint)

Value11.9 s

0/100

10%

LCP (Largest Contentful Paint)

Value17.8 s

0/100

25%

SI (Speed Index)

Value13.8 s

1/100

10%

TBT (Total Blocking Time)

Value1,800 ms

10/100

30%

CLS (Cumulative Layout Shift)

Value0.593

11/100

15%

TTI (Time to Interactive)

Value16.5 s

5/100

10%

erdw.ethz.ch

739 ms

.navigation.json

926 ms

gtm.js

60 ms

css.css

626 ms

components.css

324 ms

Our browser made a total of 27 requests to load all elements on the main page. We found that 67% of them (18 requests) were addressed to the original Erdw.ethz.ch, 30% (8 requests) were made to Ethz.ch and 4% (1 request) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (1.2 sec) belongs to the original domain Erdw.ethz.ch.

Content Size

1.3 MB

After Optimization

913.4 kB

In fact, the total size of Erdw.ethz.ch main page is 1.3 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. 20% of websites need less resources to load. Images take 1.2 MB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 69.0 kB

Original 82.4 kB
After minification 58.7 kB
After compression 13.4 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 23.7 kB, which is 29% 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 69.0 kB or 84% of the original size.

Image Optimization

-25%

Potential reduce by 303.3 kB

Original 1.2 MB
After minification 899.9 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, Erdw ETH Z needs image optimization as it can save up to 303.3 kB or 25% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

Requests Now

After Optimization

The browser has sent 26 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Erdw 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 and as a result speed up the page load time.

Accessibility Issues

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.

High

Links do not have a discernible name

Areas of Improvement

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

Search Engine Optimization Advices

To appear in search results, crawlers need access to your app.

High

Links are not crawlable

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/).

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

Language Detected

DE
Language Claimed

DE
Encoding

UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Erdw.ethz.ch can be misinterpreted by Google and other search engines. Our service has detected that German is used on the page, and it matches the claimed language. Our system also found out that Erdw.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

erdw.ethz.ch

Open Graph data is detected on the main page of Erdw ETH Z. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook:

Report Summary

Performance

Accessibility

Best Practices

SEO

Departement Erdwissenschaften: Startseite – Departement Erdwissenschaften | ETH Zürich

Page Load Speed

First Response

Resources Loaded

Page Rendered

About Website

Key Findings

Performance Metrics

Measured Metrics

FCP (First Contentful Paint)

LCP (Largest Contentful Paint)

SI (Speed Index)

TBT (Total Blocking Time)

CLS (Cumulative Layout Shift)

TTI (Time to Interactive)