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cesifo.org

https://cesifo.org· First analyzed 06 May 2026· Updated 06 May 2026
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cesifo.org
Desktop screenshot of cesifo.org
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Mobile

Sponsored

Hosting Provider

Fastly, Inc.

IP Address

151.101.67.42

Site Location

🇨🇦 Canadavia ip

Server Location

🇨🇦 Montreal, Canada

ASN

AS54113

Organization

Fastly, Inc.

CDN

Fastly

Nameservers

ns1123.ui-dns.de.ns1082.ui-dns.org.ns1051.ui-dns.biz.ns1064.ui-dns.com.

Performance

95

Core Web Vitals

Weight

First Contentful Paint
1.2 s10%
Speed Index
1.5 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
6.9 MB
106 requests

Image Optimization

Lazy LoadWebPResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Frontend
Styling
Tailwind CSS
CMS
Drupal
Infrastructure
Hosting
Fastly, Inc.
CDN
Fastly

Technology Stack

4 Technologies Detected

Libraries

1
jQuery

UI Components

1
Swiper

CSS Frameworks

1
Tailwind CSS

Analytics

1
Matomo

SEO Analysis

B74/100
22
5
0
Meta Tags12/15
Content12/12
Headings7/8
Technical16/21
E-E-A-T0/7
Images7/7
Links5/5
URL5/5
Social3/5
Freshness0/4
Mobile4/4
Indexability3/3
C
cesifo.orgcesifo.org

CESifo Homepage | ifo Institute | CESifo

CESifo is a global, independent research network with members from across the world. Members are prominent economists with a broad spectrum of specialisms, e...

Description truncated.
Title Length40 chars

Recommended: 50-60 chars (~235px / 580px)

Description Length248 chars

Recommended: 120-160 chars

Issues (0)

    5 issues found

    Upgrade to view details

    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

    D49/100
    Bot Access
    20/25
    Machine Read.
    16/25
    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.txtinvalid
    llms-full.txt
    Semantic HTML
    Heading Hierarchy
    nav
    Text ratio:7%
    Words:1,530
    Token eff.:Optimal
    Sections/1K:1.3
    Depth:1/5

    Structured Data

    No Schema

    Citation Readiness

    Opening Summary87w
    Descriptive Headingsavg 2.1w
    Canonical URL
    Open Graph3/3
    Twitter Card0/3
    Language Tag
    Publish Date
    Author Info
    Lists
    Tables
    TL;DR / Summary
    About Page Link
    Recommendations (10)
    AI readiness recommendation preview...
    Upgrade to view recommendations

    Sponsored

    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.
    A
    89/100
    14
    Passed
    1
    Critical
    0
    Warnings
    Images & Alt Text
    20/20
    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
    15/15
    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.

    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.
    50/100
    F
    715 mg
    CO₂e / view
    6.9 MB
    Page Weight
    5%
    Cleaner Than
    New Visitor
    817 mg
    vs
    Returning (cached)
    409 mg
    Annual (10K/mo)
    85.8 kg
    Emission Segments
    Data Center
    35 mg
    Network
    210 mg
    Device
    470 mg
    Resource Breakdown
    JavaScript
    655.7 KB
    Images
    5.9 MB
    CSS
    359.7 KB
    HTML
    16.4 KB
    Other
    2.0 KB
    Green Hosting Verified
    Fastly, Inc.
    Provider Match
    5 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    A+

    Security Score

    91%Excellent
    Static / Informational

    HTTPS

    No WAF

    10d

    Certificate Details

    Type

    Domain Validated (DV)

    Certificate Authority

    Certainly

    Key Algorithm

    RSA (2048 bit)

    Signature

    SHA-256 with RSA

    TLS Version

    TLSv1.3

    HTTP Protocol

    HTTP/2+H3

    Valid From

    16.04.2026

    Valid Until

    16.05.2026

    Subject Alternative Names (5)

    cesifo.orgifo.deobsidian.ifo.dewww.cesifo.orgwww.ifo.de

    SHA-256 Fingerprint

    A8:13:EF:37:C2:E2:43:A6:20:06:42:74:83:89:AA:C5:58:91:D1:5D...

    Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    accept-ranges
    bytes
    age
    44736
    alt-svc
    h3=":443";ma=86400,h3-29=":443";ma=86400,h3-27=":443";ma=864...
    cache-control
    🔴 No Cache(no-store, no-cache, must-revalidate, max-age=0)
    content-encoding
    ⚡ Brotli(br)
    content-language
    en
    Good Warning Issue

    Email Infrastructure

    Custom Mail Server

    Score

    65

    SPF
    DKIM
    DMARC

    DMARC Policy

    None (Monitor Only)

    MX Records (2)

    mx01.ionos.de
    mx00.ionos.de

    Domain Information

    cesifo.org

    Domain Age
    25y 9m

    Created

    09.08.2000

    Expires

    09.08.2026

    Last Updated

    23.09.2025

    Registrar

    IONOS SE

    DNSSEC
    Not Enabled

    Privacy & Compliance

    Cookie Notice (WP)

    Cookie Consent Banner
    Cookie Notice (WP)
    Privacy Policy
    Terms of Service

    GDPR Indicators

    Cookie consent banner detected
    CMP: Cookie Notice (WP)
    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
    66/100
    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=1.0
    2 recommendations
    • •Mobile compatibility recommendation preview...
    Upgrade to view recommendations

    Typography & Readability

    ifoInter

    WCAG AAA
    80/100
    Readability
    /30
    19/30

    16px · LH 1.38

    Hierarchy
    /20
    17/20

    4x ratio

    WCAG
    /25
    24/25

    7.05:1 min contrast

    Performance
    /25
    20/25

    1 font · 2 req

    Heading Font

    ifoInter

    Sans64px

    Body Font

    ifoInter

    Sans16px

    Contrast Ratio

    7.05:1

    WCAG AAA (≥7:1)

    Reading Comfort

    ~37 CPL

    Narrow lines
    64px
    h1
    40px
    h2
    40px
    h4
    16px
    p

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

    ⚠️ Tight line spacing (1.38). Increase to 1.4–1.6 for better readability.

    ❌ Very complex text: Flesch score 24/100. Consider shorter sentences and simpler words.

    ✅ WCAG AAA contrast: All text meets 7:1 ratio (min 7.0:1).

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

    ✅ Strong hierarchy: Headlines are 4.0x larger than body text.

    Buy on MyFontsFlesch 24

    Color Palette

    13 unique colors
    2.5:1 Fail Dark
    #594f5f
    Secondary· 9.5%
    #988fa1
    Secondary· 8.7%
    #3338de
    Primary· 22.599999999999998%
    #20272f
    Primary· 13.3%
    #fcd9cb
    Accent· 10.9%
    #f5f6fa
    Primary· 9.8%
    #826664
    Secondary· 6.5%
    #5f6886
    Secondary· 3.5%

    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

    Sponsored

    Scripts & Styles

    23 Resources

    20
    Scripts
    3
    Styles
    1
    Async
    1
    Defer

    Top Script Sources

    local(19)webanalytics.cesifo-group.de(1)

    Website Identity

    cesifo.org

    25 years old
    Location detected: 🇨🇦 Canadavia ip
    IONOS SEen

    Sponsored

    Last analyzed: 06 May 2026 at 01:10

    Historical Analysis & Change Tracking