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eawag.ch

https://eawag.ch· First analyzed 01 May 2026· Updated 01 May 2026
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eawag.ch
Desktop screenshot of eawag.ch
Mobile screenshot of eawag.ch
Mobile

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Hosting Provider

Eawag/Empa

IP Address

152.88.10.20

Site Location

🇨🇭 Switzerlandvia tld

Server Location

🇨🇭 Zurich, Switzerland

ASN

AS559

Organization

Eawag/Empa

Server

Nginx

Nameservers

dns3.emp-eaw.ch.dns4.emp-eaw.ch.

Performance

79

Core Web Vitals

Weight

First Contentful Paint
2.4 s10%
Speed Index
3.1 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
25.5 MB
66 requests

Image Optimization

Lazy Load
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
TYPO3

Technology Stack

7 Technologies Detected

Analytics

2
Google Analytics
Google Analytics 4

CSS Frameworks

1
Tailwind CSS

Icon Libraries

1
Font Awesome

Fonts

1
Google Fonts

Tag Managers

1
Google Tag Manager

Web Servers

1
Nginx

SEO Analysis

C66/100
18
8
1
Meta Tags12/15
Content12/12
Headings7/8
Technical16/25
E-E-A-T0/7
Images2/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile4/4
Indexability3/3
E
eawag.cheawag.ch

Eawag - das Wasserforschungsinstitut des ETH-Bereichs - Eawag

Die Eawag ist das Wasserforschungsinstitut des ETH-Bereichs. Die Eawag befasst sich mit Konzepten und Technologien für einen nachhaltigen Umgang mit der Ress...

Description truncated.
Title Length61 chars

Recommended: 50-60 chars (~380px / 580px)

Description Length678 chars

Recommended: 120-160 chars

Issues (1)

  • • Most images missing alt text (31/36) — critical for accessibility and SEO

9 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

1 URLs

1 sub-sitemaps

robots.txt

12 rules

Local SEO

Local Search Readiness

8/100
Poor
2 13 2

This site doesn't appear to be a local business. Local SEO signals are optional for non-local websites.

Sponsored

AI & LLM Readiness

D41/100
Bot Access
20/25
Machine Read.
12/25
Schema Data
0/25
Citation
9/25

AI Bot Access

14/14 accessible
AI Search
OAI-SearchBot
PerplexityBot
Claude-SearchBot
Gemini-Deep-Research
DuckAssistBot
Training
GPTBot
ClaudeBot
Google-Extended
Meta-ExternalAgent
Bytespiderinfo
Amazonbot
Applebot-Extended
CCBotinfo
Fetch
ChatGPT-User

Machine Readability

llms.txt
llms-full.txt
Semantic HTML
Heading Hierarchy
navheader/footer
Text ratio:11%
Words:1,301
Token eff.:Optimal
Sections/1K:11.5
Depth:2/5

Structured Data

No Schema

Citation Readiness

Opening Summary20w
Descriptive Headingsavg 3.1w
Canonical URL
Open Graph0/3
Twitter Card0/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (9)
AI readiness recommendation preview...
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Accessibility

WCAG 2.1 Compliance

Evaluates how accessible your website is for users with disabilities, based on WCAG 2.1 guidelines. Checks images, forms, keyboard navigation, ARIA roles, and color contrast.
B
79/100
12
Passed
3
Critical
1
Warnings
Images & Alt Text
15/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
17/20
Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.
Forms & Inputs
10/15
Verifies form fields have labels, error messages are clear, and inputs are properly associated.
Color & Contrast
15/15
Tests text-to-background color contrast ratios against WCAG AA/AAA minimum requirements.
Keyboard & Focus
13/15
Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
ARIA & Roles
9/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
2 recommendations
  • •Accessibility recommendation preview...
Upgrade to view recommendations

Carbon Footprint

SWDM v4 · Eco-Score

Carbon emissions estimated using the Sustainable Web Design Model v4 (SWDM v4). Factors in data center, network, and device energy across new and returning visitors. Grade thresholds based on HTTP Archive percentiles.
16/100
F
3.23 g
CO₂e / view
25.5 MB
Page Weight
5%
Cleaner Than
New Visitor
3.69 g
vs
Returning (cached)
1.85 g
Annual (10K/mo)
387.9 kg
Emission Segments
Data Center
722 mg
Network
776 mg
Device
1.73 g
Resource Breakdown
JavaScript
124.5 KB
Images
10.8 MB
CSS
194.0 KB
Fonts
2.6 KB
HTML
16.1 KB
Other
14.4 MB
Green Hosting Not Verified
Eawag/Empa
8 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
B

Security Score

76%Good
Interactive

HTTPS

No WAF

68d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

DigiCert Inc

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.2

HTTP Protocol

HTTP/1.1

Valid From

08.06.2025

Valid Until

08.07.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.eawag.cheawag.ch

SHA-256 Fingerprint

07:A4:7A:3E:12:FA:6A:BD:1E:20:2E:FB:10:54:11:F5:F3:CC:90:A4...

Top Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

cache-control
🔵 Public(public)
connection
keep-alive
content-encoding
📦 Gzip(gzip)
content-language
de
content-length
16184
content-security-policy
frame-ancestors 'self'
Good Warning Issue

Email Infrastructure

Microsoft 365

Score

95

SPF
DKIM
DMARC

DMARC Policy

None (Monitor Only)

MX Records (1)

eawag-ch.mail.protection.outlook.com

Domain Information

eawag.ch

DNSSEC
Not Enabled

Privacy & Compliance

Cookie Consent Banner
Privacy Policy
Terms of Service

GDPR Indicators

Privacy policy page linked

Mobile Compatibility

Viewport & Responsive Test

Tests how well your website works on mobile devices. Checks viewport configuration, responsive layout, touch targets, font readability, and simulates rendering across different screen sizes.
C
60/100
Mobile Friendly1 breakpoint
Viewport Meta
The viewport meta tag tells mobile browsers how to scale the page. Without it, mobile devices render at desktop width.
Responsive Design
Uses CSS media queries or flexible layouts to adapt content to different screen sizes automatically.
Touch Icons
Apple touch icons and favicons displayed when users add the site to their home screen on mobile devices.
Readable Font Size
Base font size should be at least 16px on mobile to ensure text is readable without zooming.
Relative Units
Using em, rem, %, or vw instead of fixed px values allows content to scale properly across screen sizes.
No H-Scroll Risk
No elements wider than the viewport that would cause horizontal scrolling on mobile devices.
Tap Targets OK
Interactive elements (buttons, links) are at least 48x48px with enough spacing to prevent accidental taps.
No Fixed Widths
No elements with fixed pixel widths that could overflow on smaller screens and break the layout.
Viewport
width=device-width, initial-scale=1
1 recommendation
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

The Serif Bold + Arial

WCAG Partial
70/100
Readability
/30
22/30

18px · LH 1.44

Hierarchy
/20
14/20

2.22x ratio

WCAG
/25
17/25

1:1 min contrast

Performance
/25
17/25

System fonts

Heading Font

The Serif Bold

Serif40px

Body Font

Arial

Sans18px

Contrast Ratio

1:1

12 issues

Reading Comfort

~36 CPL

Narrow lines
40px
h1
26px
h2
16px
h4
18px
p

✅ Excellent readability: 18px body text is ideal for all devices.

✅ Optimal line spacing: 1.44 ratio (ideal range 1.4–1.6).

❌ Very complex text: Flesch score 0/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 12 elements below WCAG AA threshold (min 1.0:1).

⚠️ Minor heading issue: 1 level skip(s) detected. Maintain sequential order for screen readers.

✅ Strong hierarchy: Headlines are 2.2x larger than body text.

GGoogle FontsBuy on MyFontsFlesch 0

Color Palette

10 unique colors
Light
#efefef
Background· 12.9%
#294d61
Secondary· 17.5%
#128ec5
Primary· 14.1%
#0b3e58
Accent· 12.3%
#06243a
Accent· 12.1%
#517586
Secondary· 9.6%
#296887
Accent· 5.6%
#539bb9
Secondary· 3.4%

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

2
Google Tag ManagerFree
Google AnalyticsFree

User behavior and product analytics

1

Categories

2

Total Tools

0

Enterprise

0

Mid-Market

Assessment: Growing marketing technology adoption

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Scripts & Styles

23 Resources

13
Scripts
10
Styles
4
Async
0
Defer

Top Script Sources

local(7)googletagmanager.com(3)google-analytics.com(1)widget.taggbox.com(1)browser-update.org(1)

Website Identity

eawag.ch

Location detected: 🇨🇭 Switzerlandvia tld
📧 Microsoft 365de-CH

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Last analyzed: 01 May 2026 at 04:50

Historical Analysis & Change Tracking