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diw.de

https://diw.de· First analyzed 23 Apr 2026· Updated 23 Apr 2026
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diw.de
Desktop screenshot of diw.de
Mobile screenshot of diw.de
Mobile

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Hosting Provider

1blu GmbH

IP Address

195.90.218.113

Site Location

🇩🇪 Germanyvia tld

Server Location

🇩🇪 Berlin, Germany

ASN

AS42730

Organization

1blu GmbH

Server

Apache

Nameservers

deneb.dfn.de.dns1.diw.de.dns2.diw.de.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
585 ms10%
Speed Index
760 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
5.3 MB
58 requests

Image Optimization

Lazy Load
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
1blu GmbH

Technology Stack

5 Technologies Detected

Icon Libraries

2
Font AwesomeMaterial Icons

CSS Frameworks

1
Tailwind CSS

Analytics

1
Matomo

Web Servers

1
Apache

SEO Analysis

C64/100
19
7
1
Meta Tags9/15
Content11/12
Headings3/8
Technical13/25
E-E-A-T3/7
Images5/7
Links5/5
URL5/5
Social5/5
Freshness0/4
Mobile2/4
Indexability3/3
D
diw.dediw.de

DIW Berlin: Startseite

Das DIW Berlin erforscht wirtschafts- und sozialwissenschaftliche Themen wie Konjunktur, Märkte, Fiskal- und Geldpolitik, Verteilung und Klimapolitik.

Title Length22 chars

Recommended: 50-60 chars (~128px / 580px)

Description Length150 chars

Recommended: 120-160 chars

Issues (1)

  • • Missing H1 tag — every page should have exactly one H1

8 issues found

Upgrade to view details

Crawlability

Sitemap
robots.txt

91 rules

Local SEO

Local Search Readiness

5/100
Poor
2 13 2

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

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AI & LLM Readiness

D43/100
Bot Access
20/25
Machine Read.
10/25
Schema Data
0/25
Citation
13/25

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
nav
Text ratio:5%
Words:1,118
Token eff.:Optimal
Sections/1K:22.4
Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary11w
Descriptive Headingsavg 5.6w
Canonical URL
Open Graph3/3
Twitter Card3/3
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.
C
66/100
8
Passed
4
Critical
2
Warnings
Images & Alt Text
15/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
13/20
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
9/15
Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
ARIA & Roles
4/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
5 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.
27/100
F
674 mg
CO₂e / view
5.3 MB
Page Weight
5%
Cleaner Than
New Visitor
770 mg
vs
Returning (cached)
385 mg
Annual (10K/mo)
80.8 kg
Emission Segments
Data Center
150 mg
Network
162 mg
Device
362 mg
Resource Breakdown
JavaScript
69.3 KB
Images
4.1 MB
CSS
1.1 MB
HTML
33.3 KB
Green Hosting Not Verified
1blu GmbH
6 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
F

Security Score

21%Critical
Interactive

HTTPS

No WAF

163d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

Hellenic Academic and Research Institutions CA

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-384

TLS Version

TLSv1.3

HTTP Protocol

HTTP/1.1

Valid From

18.03.2026

Valid Until

03.10.2026

OCSP Stapling

Enabled

Subject Alternative Names (8)

diw.degsoep.dewww.diw-berlin.desoep.dewww.soep.dewww.gsoep.dediw-berlin.dewww.diw.de

SHA-256 Fingerprint

E9:57:96:B1:6A:77:4E:7C:15:8F:8F:15:B8:4A:4E:BE:7B:6A:1D:EA...

Top Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

accept-ranges
bytes
connection
Keep-Alive
content-encoding
📦 Gzip(gzip)
content-length
108
content-type
text/html
date
Thu, 23 Apr 2026 09:34:22 GMT
Good Warning Issue

Email Infrastructure

Microsoft 365

Score

100

SPF
DKIM
DMARC

DMARC Policy

Reject (Strictest)

MX Records (1)

diw-de.mail.protection.outlook.com

Domain Information

diw.de

Last Updated

03.04.2024

DNSSEC
Not Enabled

Privacy & Compliance

Cookie Consent Banner
Privacy Policy
Terms of Service

GDPR Indicators

Privacy policy page linked
Data Protection Officer mentioned

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.
D
52/100
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,shrink-to-fit=no,user-scalable=no
3 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

RobotoSlab-Regular + Lato-Regular

WCAG Partial
53/100
Readability
/30
23/30

16px · LH 1.63

Hierarchy
/20
7/20
WCAG
/25
14/25

1:1 min contrast

Performance
/25
9/25

System fonts

Heading Font

RobotoSlab-Regular

Sans

Body Font

Lato-Regular

Sans16px

Contrast Ratio

1:1

29 issues

Reading Comfort

~35 CPL

Narrow lines
53px
h2
32px
h3
23px
h4
16px
p

✅ Excellent readability: 16px body text is ideal for all devices.

❌ Very complex text: Flesch score 4/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 29 elements below WCAG AA threshold (min 1.0:1).

❌ Missing H1: Every page should have exactly one H1 element for SEO and accessibility.

✅ System fonts: Zero font loading delay — best possible LCP impact.

⚠️ High font requests: 9 font files loaded. Consider variable fonts or subsetting.

Buy on MyFontsFlesch 4

Color Palette

5 unique colors
Light
#f6f6f6
Background· 14.399999999999999%
#0e796d
Accent· 47.7%
#189083
Accent· 28.8%
#0ca090
Primary· 7.2%
#4ead9e
Secondary· 2.1%

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

2
Matomo (Piwik)Mid-Market
Google AnalyticsFree

User behavior and product analytics

1

Categories

2

Total Tools

0

Enterprise

1

Mid-Market

Assessment: Growing marketing technology adoption

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Scripts & Styles

4 Resources

2
Scripts
2
Styles
1
Async
1
Defer

Top Script Sources

piwik.diw.de(1)local(1)

Website Identity

diw.de

Location detected: 🇩🇪 Germanyvia tld
📧 Microsoft 365de

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Last analyzed: 23 Apr 2026 at 09:34

Historical Analysis & Change Tracking