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arbitrum.foundation

https://arbitrum.foundation· First analyzed 07 May 2026· Updated 07 May 2026
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arbitrum.foundation
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Mobile

Sponsored

Hosting Provider

Vercel
vercel.com

IP Address

76.76.21.21

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 Walnut, United States

ASN

AS16509

Organization

Vercel, Inc

Server

Vercel

CDN

Cloudflare

WAF

Cloudflare

Nameservers

louis.ns.cloudflare.com.gracie.ns.cloudflare.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
477 ms10%
Speed Index
620 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
851 KB
43 requests

Image Optimization

Lazy LoadWebPResponsiveVercel Image Optimization
0–49
50–89
90–100

Architecture Stack

Hybrid
🔀 Hybrid
Frontend
Framework
Next.js
Styling
Tailwind CSS
CMS
Ghost
Infrastructure
Platform
Vercel
CDN
Cloudflare

Technology Stack

4 Technologies Detected

Meta Frameworks

1
Next.js

CSS Frameworks

1
Tailwind CSS

Analytics

1
PostHog

Platforms

1
Vercel

SEO Analysis

C63/100
20
5
0
Meta Tags9/15
Content8/12
Headings8/8
Technical11/21
E-E-A-T0/7
Images7/7
Links5/5
URL5/5
Social3/5
Freshness0/4
Mobile4/4
Indexability3/3
A
arbitrum.foundationarbitrum.foundation

Arbitrum Foundation

The Arbitrum Foundation empowers the development and governance of Arbitrum technology and helps foster growth and success within the ecosystem.

Title Length19 chars

Recommended: 50-60 chars (~116px / 580px)

Description Length144 chars

Recommended: 120-160 chars

Issues (0)

    5 issues found

    Upgrade to view details

    Local SEO

    Local Search Readiness

    3/100
    Poor
    1 14 2

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

    Sponsored

    AI & LLM Readiness

    F38/100
    Bot Access
    20/25
    Machine Read.
    7/25
    Schema Data
    0/25
    Citation
    11/25

    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:4%
    Words:221
    Token eff.:Too Short
    Sections/1K:18.1
    Depth:2/5

    Structured Data

    No Schema

    Citation Readiness

    Opening Summary14w
    Descriptive Headingsavg 9w
    Canonical URL
    Open Graph2/3
    Twitter Card0/3
    Language Tag
    Publish Date
    Author Info
    Lists
    Tables
    TL;DR / Summary
    About Page Link
    Recommendations (9)
    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
    88/100
    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
    20/20
    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
    9/15
    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.
    1 recommendation
    • •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.
    73/100
    B
    86 mg
    CO₂e / view
    850.7 KB
    Page Weight
    80%
    Cleaner Than
    New Visitor
    98 mg
    vs
    Returning (cached)
    49 mg
    Annual (10K/mo)
    10.3 kg
    Emission Segments
    Data Center
    4 mg
    Network
    25 mg
    Device
    57 mg
    Resource Breakdown
    JavaScript
    311.1 KB
    Images
    202.2 KB
    CSS
    332.7 KB
    HTML
    4.7 KB
    Green Hosting Verified
    Vercel
    Provider Match
    3 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    B

    Security Score

    76%Good
    Static / Informational

    HTTPS

    No WAF

    48d

    Certificate Details

    Type

    Domain Validated (DV)

    Certificate Authority

    Let's Encrypt

    Key Algorithm

    RSA (2048 bit)

    Signature

    SHA-256 with RSA

    TLS Version

    TLSv1.3

    HTTP Protocol

    HTTP/2

    Valid From

    26.03.2026

    Valid Until

    24.06.2026

    Subject Alternative Names (1)

    arbitrum.foundation

    SHA-256 Fingerprint

    80:E8:AD:E4:76:52:01:44:76:BE:36:CF:77:8D:42:38:28:45:FD:1B...

    Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    access-control-allow-origin
    *
    age
    1052194
    cache-control
    🟡 0s(public, max-age=0, must-revalidate)
    content-disposition
    inline
    content-encoding
    ⚡ Brotli(br)
    content-type
    text/html; charset=utf-8
    Good Warning Issue

    Email Infrastructure

    Google Workspace

    Score

    95

    SPF
    DKIM
    DMARC

    DMARC Policy

    Reject (Strictest)

    MX Records (5)

    alt4.aspmx.l.google.com
    aspmx.l.google.com
    alt3.aspmx.l.google.com
    alt1.aspmx.l.google.com

    +1 more

    Domain Information

    arbitrum.foundation

    Domain Age
    3y 7m

    Created

    13.09.2022

    Expires

    13.09.2026

    Last Updated

    18.05.2025

    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
    78/100
    Mobile Friendly
    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, minimum-scale=1
    1 recommendation
    • •Mobile compatibility recommendation preview...
    Upgrade to view recommendations

    Typography & Readability

    Universal Sans Display 200

    WCAG Partial
    67/100
    Readability
    /30
    19/30

    70px · LH 1.20

    Hierarchy
    /20
    12/20

    1.29x ratio · ✓ H1→H6

    WCAG
    /25
    16/25

    1:1 min contrast

    Performance
    /25
    20/25

    2 fonts · 3 req

    Heading Font

    Universal Sans Display 200

    Sans90px

    Body Font

    Universal Sans Display 200

    Sans70px

    Contrast Ratio

    1:1

    4 issues

    Reading Comfort

    Single Font Family

    left aligned
    90px
    h1
    63px
    h2
    40px
    h3
    20px
    h4
    70px
    p

    ✅ Excellent readability: 70px body text is ideal for all devices.

    ⚠️ Tight line spacing (1.20). Increase to 1.4–1.6 for better readability.

    ⚠️ Hard to read: Flesch score 36/100. Simplify sentences for wider reach.

    ⚠️ Partial contrast: 4 elements below WCAG AA threshold (min 1.0:1).

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

    ⚠️ Weak hierarchy: Headlines should be ≥2x body size for clear visual structure.

    Buy on MyFontsFluid TypeFlesch 37

    Color Palette

    8 unique colors
    Dark
    #000000
    Background· 79.8%
    #35424e
    Primary· 4.3%
    #181e22
    Secondary· 4%
    #252e35
    Secondary· 3.9000000000000004%
    #486173
    Secondary· 2%
    #6ca5c0
    Secondary· 1.9%
    #dcdcc0
    Secondary· 1.8%

    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

    21 Resources

    20
    Scripts
    1
    Styles
    1
    Async
    13
    Defer

    Top Script Sources

    local(15)us-assets.i.posthog.com(4)cdn.jsdelivr.net(1)

    Website Identity

    arbitrum.foundation

    3 years old
    Location detected: 🇺🇸 United Statesvia ip
    NameCheap, Inc.📧 Google Workspaceen

    Social Profiles

    X (Twitter)Discord

    Sponsored

    Last analyzed: 07 May 2026 at 00:50

    Historical Analysis & Change Tracking