Tools & Wizards About Us

Report Summary

  • 35

    Performance

    Renders faster than
    55% of other websites

  • 95

    Accessibility

    Visual factors better than
    that of 86% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 91

    SEO

    Google-friendlier than
    70% of websites

eawag.ch

Eawag - das Wasserforschungsinstitut des ETH-Bereichs - Eawag

Page Load Speed

4.5 sec in total

First Response

394 ms

Resources Loaded

3.2 sec

Page Rendered

896 ms

About Website

Click here to check amazing Eawag content for Switzerland. Otherwise, check out these important facts you probably never knew about eawag.ch

Die Eawag ist das Wasserforschungsinstitut des ETH-Bereichs. Die Eawag befasst sich mit Konzepten und Technologien für einen nachhaltigen Umgang mit der Ressource Wasser und den Gewässern. In Zusammen...

Visit eawag.ch

Key Findings

We analyzed Eawag.ch page load time and found that the first response time was 394 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

eawag.ch performance score

35

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value6.5 s

2/100

10%

LCP (Largest Contentful Paint)

Value15.6 s

0/100

25%

SI (Speed Index)

Value9.6 s

11/100

10%

TBT (Total Blocking Time)

Value490 ms

59/100

30%

CLS (Cumulative Layout Shift)

Value0.004

100/100

15%

TTI (Time to Interactive)

Value13.3 s

12/100

10%

Network Requests Diagram

eawag.ch

394 ms

eawag.ch

421 ms

234 ms

news-basic.css

105 ms

7015c8c4ac.css

209 ms

Our browser made a total of 54 requests to load all elements on the main page. We found that 96% of them (52 requests) were addressed to the original Eawag.ch, 2% (1 request) were made to Fonts.googleapis.com and 2% (1 request) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (874 ms) belongs to the original domain Eawag.ch.

Page Optimization Overview & Recommendations

Page size can be reduced by 168.2 kB (3%)

Content Size

5.8 MB

After Optimization

5.6 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Eawag.ch main page is 5.8 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. 55% of websites need less resources to load. Images take 5.5 MB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 67.4 kB

  • Original 81.5 kB
  • After minification 61.1 kB
  • After compression 14.0 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 20.4 kB, which is 25% 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 67.4 kB or 83% of the original size.

Image Optimization

-2%

Potential reduce by 93.2 kB

  • Original 5.5 MB
  • After minification 5.5 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. Eawag images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 357 B

  • Original 124.7 kB
  • After minification 124.7 kB
  • After compression 124.3 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. This website has mostly compressed JavaScripts.

CSS Optimization

-13%

Potential reduce by 7.2 kB

  • Original 55.9 kB
  • After minification 55.9 kB
  • After compression 48.7 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. Eawag.ch needs all CSS files to be minified and compressed as it can save up to 7.2 kB or 13% of the original size.

Requests Breakdown

Number of requests can be reduced by 21 (47%)

Requests Now

45

After Optimization

24

  • Images
  • JavaScript
  • CSS

The browser has sent 45 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Eawag. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and from 15 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

eawag.ch accessibility score

95

Accessibility Issues

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

Background and foreground colors do not have a sufficient contrast ratio.

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

eawag.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

Page has valid source maps

SEO Factors

eawag.ch SEO score

91

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

    DE

  • Language Claimed

    DE

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Eawag.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 Eawag.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

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