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elm-lang.org

https://elm-lang.org· First analyzed 29 Apr 2026· Updated 29 Apr 2026
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elm-lang.org
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Mobile

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Hosting Provider

Google Cloud Platform
cloud.google.com

IP Address

104.198.14.52

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 The Dalles, United States

ASN

AS396982

Organization

Google Cloud (us-west1)

Server

Netlify

Nameservers

ns3.digitalocean.com.ns1.digitalocean.com.ns2.digitalocean.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
647 ms10%
Speed Index
841 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
42 KB
6 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Platform
Netlify

Technology Stack

3 Technologies Detected

CSS Frameworks

1
Tailwind CSS

Fonts

1
Google Fonts

Platforms

1
Netlify

SEO Analysis

D58/100
16
9
0
Meta Tags14/15
Content8/12
Headings8/8
Technical14/25
E-E-A-T0/7
Images0/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile1/4
Indexability3/3
E
elm-lang.orgelm-lang.org

Elm - delightful language for reliable web applications

A delightful language with friendly error messages, great performance, small assets, and no runtime exceptions.

Title Length55 chars

Recommended: 50-60 chars (~322px / 580px)

Description Length111 chars

Recommended: 120-160 chars

Issues (0)

    9 issues found

    Upgrade to view details

    Crawlability

    Sitemap
    robots.txt

    2 rules

    Allows all crawlers

    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

    D41/100
    Bot Access
    20/25
    Machine Read.
    14/25
    Schema Data
    0/25
    Citation
    7/25

    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
    blockquotescode blocksnav
    Text ratio:7%
    Words:586
    Token eff.:Optimal
    Sections/1K:13.7
    Depth:3/5

    Structured Data

    No Schema

    Citation Readiness

    Opening Summary67w
    Descriptive Headingsavg 2.6w
    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...
    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
    86/100
    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
    14/15
    Tests text-to-background color contrast ratios against WCAG AA/AAA minimum requirements.
    Keyboard & Focus
    11/15
    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.
    1 recommendation
    • •Accessibility recommendation preview...
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    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.
    77/100
    A+
    4 mg
    CO₂e / view
    41.6 KB
    Page Weight
    95%
    Cleaner Than
    New Visitor
    5 mg
    vs
    Returning (cached)
    2 mg
    Annual (10K/mo)
    504 g
    Emission Segments
    Data Center
    <0.001 g
    Network
    1 mg
    Device
    3 mg
    Resource Breakdown
    JavaScript
    5.3 KB
    CSS
    4.1 KB
    Fonts
    1021 B
    HTML
    31.1 KB
    Green Hosting Verified
    Google Cloud
    GWF Verified
    2 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    B

    Security Score

    76%Good
    Static / Informational

    HTTPS

    No WAF

    35d

    Certificate Details

    Type

    Domain Validated (DV)

    Certificate Authority

    Let's Encrypt

    Key Algorithm

    ECDSA (secp256r1) (256 bit)

    Signature

    ECDSA with SHA-384

    TLS Version

    TLSv1.3

    HTTP Protocol

    HTTP/2

    Valid From

    06.03.2026

    Valid Until

    04.06.2026

    Subject Alternative Names (2)

    elm-lang.orgwww.elm-lang.org

    SHA-256 Fingerprint

    58:E2:78:51:29:CD:C8:54:75:CF:22:4F:83:EC:03:4A:0D:67:9C:D5...

    Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    accept-ranges
    bytes
    age
    32193
    cache-control
    🟡 0s(public,max-age=0,must-revalidate)
    cache-status
    "Netlify Edge"; hit
    content-encoding
    ⚡ Brotli(br)
    content-length
    31582
    Good Warning Issue

    Email Infrastructure

    Custom Mail Server

    Score

    0

    SPF
    DKIM
    DMARC

    Domain Information

    elm-lang.org

    Domain Age
    14y 7m

    Created

    18.09.2011

    Expires

    18.09.2026

    Last Updated

    08.09.2025

    Registrar

    DreamHost, LLC

    DNSSEC
    Not Enabled

    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
    69/100
    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...
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    Typography & Readability

    IBM Plex Sans

    WCAG Partial
    73/100
    Readability
    /30
    25/30

    16px · LH 1.31

    Hierarchy
    /20
    13/20

    1.88x ratio · ✓ H1→H6

    WCAG
    /25
    17/25

    2.39:1 min contrast

    Performance
    /25
    18/25

    1 font · 1 req

    Heading Font

    IBM Plex Sans

    Sans30px

    Body Font

    IBM Plex Sans

    Sans16px

    Contrast Ratio

    2.39:1

    25 issues

    Reading Comfort

    ~38 CPL

    Narrow lines
    30px
    h1
    25px
    h2
    16px
    p

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

    ⚠️ Tight line spacing (1.31). Increase to 1.4–1.6 for better readability.

    ⚠️ Partial contrast: 25 elements below WCAG AA threshold (min 2.4:1).

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

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

    ✅ Smart font loading: font-display: swap prevents invisible text during load (FOIT).

    GGoogle FontsFlesch 59

    Color Palette

    8 unique colors
    Light
    #ffffff
    Background· 92.3%
    #1293d7
    Primary· 2.5%
    #4daee0
    Accent· 1.6%
    #b7d2dd
    Secondary· 1.1%
    #94b1bf
    Secondary· 1%
    #37789c
    Secondary· 0.5%
    #319ed7
    Accent· 0.1%

    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

    4 Resources

    1
    Scripts
    3
    Styles
    0
    Async
    0
    Defer

    Top Script Sources

    local(1)

    Website Identity

    elm-lang.org

    14 years old
    Location detected: 🇺🇸 United Statesvia ip
    DreamHost, LLCen

    Social Profiles

    X (Twitter)GitHub

    Sponsored

    Last analyzed: 29 Apr 2026 at 18:34

    Historical Analysis & Change Tracking