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openneuro.org

https://openneuro.org· First analyzed 24 May 2026· Updated 24 May 2026
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openneuro.org
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Mobile

Sponsored

Hosting Provider

Google Cloud Platform
cloud.google.com

IP Address

34.107.158.10

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 Kansas City, United States

ASN

AS396982

Organization

Google Cloud

Server

Nginx

Nameservers

ns-796.awsdns-35.net.ns-1304.awsdns-35.org.ns-1786.awsdns-31.co.uk.ns-241.awsdns-30.com.

Performance

87

Core Web Vitals

Weight

First Contentful Paint
1.7 s10%
Speed Index
2.2 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
1.6 MB
59 requests

Image Optimization

Lazy Load
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
Google Cloud Platform

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

Customer Support

1
Freshdesk

Web Servers

1
Nginxv1.31.0

SEO Analysis

C62/100
17
10
0
Meta Tags7/15
Content11/12
Headings8/8
Technical13/25
E-E-A-T3/7
Images3/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile4/4
Indexability3/3
O
openneuro.orgopenneuro.org

OpenNeuro

A free and open platform for sharing MRI, MEG, EEG, iEEG, ECoG, ASL, and PET data

Title Length9 chars

Recommended: 50-60 chars (~58px / 580px)

Description Length81 chars

Recommended: 120-160 chars

Issues (0)

    10 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: standard

    4,706 URLs

    robots.txt

    2 rules

    Allows all crawlers

    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.

    Sponsored

    AI & LLM Readiness

    D45/100
    Bot Access
    20/25
    Machine Read.
    19/25
    Schema Data
    0/25
    Citation
    6/25

    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
    header/footer
    Text ratio:12%
    Words:763
    Token eff.:Optimal
    Sections/1K:34.1
    Depth:1/5

    Structured Data

    No Schema

    Citation Readiness

    Opening Summary10w
    Descriptive Headingsavg 3.5w
    Canonical URL
    Open Graph0/3
    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.
    B
    75/100
    10
    Passed
    3
    Critical
    1
    Warnings
    Images & Alt Text
    20/20
    Checks if images have descriptive alt text for screen readers and visually impaired users.
    Semantic Structure
    15/20
    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
    6/15
    Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
    3 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.
    59/100
    C
    163 mg
    CO₂e / view
    1.6 MB
    Page Weight
    60%
    Cleaner Than
    New Visitor
    186 mg
    vs
    Returning (cached)
    93 mg
    Annual (10K/mo)
    19.5 kg
    Emission Segments
    Data Center
    8 mg
    Network
    48 mg
    Device
    107 mg
    Resource Breakdown
    JavaScript
    1010.6 KB
    Images
    205.5 KB
    CSS
    374.7 KB
    Fonts
    2.3 KB
    HTML
    810 B
    Other
    15.5 KB
    Green Hosting Verified
    Google Cloud
    GWF Verified
    4 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    F

    Security Score

    36%Critical
    Interactive

    HTTPS

    No WAF

    62d

    Certificate Details

    Type

    Domain Validated (DV)

    Certificate Authority

    Google Trust Services

    Key Algorithm

    RSA (2048 bit)

    Signature

    SHA-256 with RSA

    TLS Version

    TLSv1.3

    HTTP Protocol

    HTTP/2+H3

    Valid From

    27.04.2026

    Valid Until

    26.07.2026

    OCSP Stapling

    Enabled

    Subject Alternative Names (1)

    openneuro.org

    SHA-256 Fingerprint

    37:04:B1:DD:1A:DB:99:4F:52:13:5C:BA:DB:CF:B2:E4:AF:59:74:6B...

    Top Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    alt-svc
    h3=":443"; ma=2592000
    cache-control
    🟡 0s(max-age=0)
    content-encoding
    📦 Gzip(gzip)
    content-type
    text/html
    date
    Sun, 24 May 2026 16:32:25 GMT
    etag
    W/"6a0c8757-3e1"
    Good Warning Issue

    Email Infrastructure

    Custom Mail Server

    Score

    25

    SPF
    DKIM
    DMARC

    Domain Information

    openneuro.org

    Domain Age
    11y 2m

    Created

    01.03.2015

    Expires

    01.03.2027

    Last Updated

    04.02.2026

    Registrar

    NameCheap, Inc.

    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.
    B
    72/100
    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

    Typography & Readability

    Open Sans

    WCAG Partial
    80/100
    Readability
    /30
    27/30

    16px · LH 1.40

    Hierarchy
    /20
    17/20

    2x ratio · ✓ H1→H6

    WCAG
    /25
    16/25

    1:1 min contrast

    Performance
    /25
    20/25

    1 font · 1 req

    Heading Font

    Open Sans

    Sans32px

    Body Font

    Open Sans

    Sans16px

    Contrast Ratio

    1:1

    30 issues

    Reading Comfort

    ~33 CPL

    Narrow lines
    32px
    h1
    29px
    h2
    26px
    h3
    18px
    h4
    16px
    p

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

    ✅ Optimal line spacing: 1.40 ratio (ideal range 1.4–1.6).

    ⚠️ Partial contrast: 30 elements below WCAG AA threshold (min 1.0:1).

    ✅ Perfect heading hierarchy: Sequential h1→h2→h3 with single H1 — ideal for SEO & accessibility.

    ✅ Strong hierarchy: Headlines are 2.0x larger than body text.

    ✅ Lean font stack: 1 font families keeps load times fast.

    GGoogle Fonts

    Color Palette

    6 unique colors
    Light
    #ffffff
    Text· 10%
    #276373
    Secondary· 37.800000000000004%
    #1d4853
    Primary· 8.6%
    #99c5b3
    Secondary· 4.3%
    #3f486a
    Secondary· 2.8%

    Business & Marketing Stack

    1 Tools Detected

    Growing

    Behavior Analytics

    1
    Google AnalyticsFree

    User behavior and product analytics

    1

    Categories

    1

    Total Tools

    0

    Enterprise

    0

    Mid-Market

    Assessment: Growing marketing technology adoption

    Sponsored

    Scripts & Styles

    11 Resources

    7
    Scripts
    4
    Styles
    4
    Async
    0
    Defer

    Top Script Sources

    googletagmanager.com(3)google-analytics.com(1)kit.fontawesome.com(1)local(1)s3.amazonaws.com(1)

    Website Identity

    openneuro.org

    support@openneuro.freshdesk.com
    11 years old
    Location detected: 🇺🇸 United Statesvia ip
    NameCheap, Inc.

    Social Profiles

    GitHub

    Sponsored

    Last analyzed: 24 May 2026 at 16:32

    Historical Analysis & Change Tracking