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mjml.io

https://mjml.io· First analyzed 14 May 2026· Updated 14 May 2026
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mjml.io
Desktop screenshot of mjml.io
Mobile screenshot of mjml.io
Mobile

Sponsored

Hosting Provider

Google Cloud Platform
cloud.google.com

IP Address

146.148.121.109

Site Location

🇧🇪 Belgiumvia ip

Server Location

🇧🇪 Brussels, Belgium

ASN

AS396982

Organization

Google Cloud (europe-west1)

Nameservers

ns2.mljt.tech.ns0.mljt.tech.ns1.mljt.tech.

Performance

98

Core Web Vitals

Weight

First Contentful Paint
879 ms10%
Speed Index
1.1 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
1.7 MB
36 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
Google Cloud Platform

Technology Stack

5 Technologies Detected

Frameworks

1
React

CSS Frameworks

1
Tailwind CSS

Icon Libraries

1
Font Awesome

Analytics

1
Google Analytics

Tag Managers

1
Google Tag Manager

SEO Analysis

B73/100
19
8
0
Meta Tags12/15
Content12/12
Headings8/8
Technical22/25
E-E-A-T0/7
Images2/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile4/4
Indexability3/3
M
mjml.iomjml.io

MJML - The Responsive Email Framework

The only framework that makes responsive email easy. MJML is a markup language designed to reduce the pain of coding a responsive email.

Title Length37 chars

Recommended: 50-60 chars (~236px / 580px)

Description Length136 chars

Recommended: 120-160 chars

Issues (0)

    8 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: standard

    69 URLs

    robots.txt

    4 rules

    Sitemap reference found

    Local SEO

    Local Search Readiness

    7/100
    Poor
    2 14 1

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

    Sponsored

    AI & LLM Readiness

    C60/100
    Bot Access
    20/25
    Machine Read.
    21/25
    Schema Data
    6/25
    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:32%
    Words:979
    Token eff.:Optimal
    Sections/1K:11.2
    Depth:1/5

    Structured Data

    1 JSON-LD
    Organization×1.1Product
    sameAs entity links

    Citation Readiness

    Opening Summary24w
    Descriptive Headingsavg 4.2w
    Canonical URL
    Open Graph0/3
    Twitter Card0/3
    Language Tag
    Publish Date
    Author Info
    Lists
    Tables
    TL;DR / Summary
    About Page Link
    Recommendations (6)
    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
    84/100
    13
    Passed
    1
    Critical
    1
    Warnings
    Images & Alt Text
    15/20
    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
    13/15
    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...
    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.
    55/100
    C
    173 mg
    CO₂e / view
    1.7 MB
    Page Weight
    60%
    Cleaner Than
    New Visitor
    198 mg
    vs
    Returning (cached)
    99 mg
    Annual (10K/mo)
    20.8 kg
    Emission Segments
    Data Center
    9 mg
    Network
    51 mg
    Device
    114 mg
    Resource Breakdown
    JavaScript
    374.8 KB
    Images
    881.9 KB
    CSS
    451.1 KB
    HTML
    5.9 KB
    Green Hosting Verified
    Google Cloud
    GWF Verified
    4 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    F

    Security Score

    21%Critical
    Interactive

    HTTPS

    No WAF

    36d

    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

    21.03.2026

    Valid Until

    19.06.2026

    Subject Alternative Names (4)

    api.mjml.iomjml.ioslack.mjml.iowww.mjml.io

    SHA-256 Fingerprint

    7B:44:EF:86:48:DF:02:A9:A7:45:86:9D:45:EF:59:10:9C:24:D5:11...

    Top Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    access-control-allow-headers
    Origin, X-Requested-With, Content-Type, Accept
    access-control-allow-origin
    *
    content-encoding
    ⚡ Brotli(br)
    content-type
    text/html; charset=utf-8
    date
    Thu, 14 May 2026 05:16:28 GMT
    etag
    W/"4164-g8T06VI5PdHfc9Pn/Uy/03RG2oY"
    Good Warning Issue

    Email Infrastructure

    Google Workspace

    Score

    100

    SPF
    DKIM
    DMARC

    DMARC Policy

    Reject (Strictest)

    MX Records (5)

    aspmx3.googlemail.com
    aspmx.l.google.com
    alt2.aspmx.l.google.com
    aspmx2.googlemail.com

    +1 more

    Domain Information

    mjml.io

    Domain Age
    10y 6m

    Created

    21.10.2015

    Expires

    21.10.2026

    Last Updated

    05.12.2025

    Registrar

    OVH SAS

    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
    62/100
    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
    2 recommendations
    • •Mobile compatibility recommendation preview...
    Upgrade to view recommendations

    Typography & Readability

    Soleil_Light

    WCAG Partial
    61/100
    Readability
    /30
    23/30

    16px · LH 1.50

    Hierarchy
    /20
    15/20

    2.19x ratio · ✓ H1→H6

    WCAG
    /25
    14/25

    1:1 min contrast

    Performance
    /25
    9/25

    System fonts

    Heading Font

    Soleil_Light

    Sans35px

    Body Font

    Soleil_Light

    Sans16px

    Contrast Ratio

    1:1

    3 issues

    Reading Comfort

    ~33 CPL

    Narrow lines
    35px
    h1
    28px
    h2
    20px
    h3
    18px
    h4
    16px
    p

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

    ✅ Optimal line spacing: 1.50 ratio (ideal range 1.4–1.6).

    ⚠️ Partial contrast: 3 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 2.2x larger than body text.

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

    Buy on MyFontsFlesch 56

    Color Palette

    5 unique colors
    Light
    #fcfcfc
    Background· 37.20000000000001%
    #f26750
    Primary· 32.2%
    #e4505e
    Accent· 25.6%
    #e8cfcc
    Secondary· 4.8%
    #cb3b47
    Accent· 0.3%

    Business & Marketing Stack

    2 Tools Detected

    Growing

    Behavior Analytics

    2
    Google Tag ManagerFree
    Google AnalyticsFree

    User behavior and product analytics

    1

    Categories

    2

    Total Tools

    0

    Enterprise

    0

    Mid-Market

    Assessment: Growing marketing technology adoption

    Sponsored

    Scripts & Styles

    4 Resources

    3
    Scripts
    1
    Styles
    1
    Async
    0
    Defer

    Top Script Sources

    googletagmanager.com(1)platform.twitter.com(1)local(1)

    Website Identity

    MJML

    Product

    The only framework that makes responsive email easy. MJML is a markup language designed to reduce the pain of coding a responsive email.

    mjml.io/
    10 years old
    Location detected: 🇧🇪 Belgiumvia ip
    OVH SAS📧 Google Workspaceen

    Social Profiles

    X (Twitter)GitHub

    Sponsored

    Last analyzed: 14 May 2026 at 05:16

    Historical Analysis & Change Tracking