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mermaidchart.com

https://mermaidchart.com· First analyzed 17 May 2026· Updated 17 May 2026
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mermaidchart.com
Desktop screenshot of mermaidchart.com
Mobile screenshot of mermaidchart.com
Mobile

Sponsored

Hosting Provider

Amazon Web Services (AWS)
aws.amazon.com

IP Address

3.164.68.10

Site Location

🇫🇮 Finlandvia ip

Server Location

🇫🇮 Helsinki, Finland

ASN

AS16509

Organization

AWS CloudFront (GLOBAL)

Server

Vercel

CDN

CloudFront

Nameservers

ns-59.awsdns-07.com.ns-712.awsdns-25.net.ns-1104.awsdns-10.org.ns-1830.awsdns-36.co.uk.

Performance

92

Core Web Vitals

Weight

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

Architecture Stack

Monolithic
⚙️ SSR
Frontend
Framework
Svelte
Styling
Tailwind CSS
CMS
Ghost
Infrastructure
Platform
Vercel
CDN
CloudFront

Technology Stack

10 Technologies Detected

Analytics

4
Google Analytics
Google Analytics 4
Microsoft ClarityPostHog

Frameworks

1
Svelte

Meta Frameworks

1
SvelteKit

CSS Frameworks

1
Tailwind CSS

Tag Managers

1
Google Tag Manager

Advertising

1
Microsoft Advertising

Platforms

1
Vercel

SEO Analysis

C66/100
17
9
0
Meta Tags15/15
Content10/12
Headings6/8
Technical15/25
E-E-A-T0/7
Images4/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile3/4
Indexability3/3
M
mermaidchart.commermaidchart.com

Mermaid: AI-Powered Diagramming & Text-to-Chart Tool

Go from text to living diagrams in seconds. Build flowcharts, sequence diagrams, and more with AI, code, or a visual editor. Trusted by 3M+ users.

Title Length52 chars

Recommended: 50-60 chars (~323px / 580px)

Description Length146 chars

Recommended: 120-160 chars

Issues (0)

    9 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: index

    5 URLs

    5 sub-sitemaps

    robots.txt

    3 rules

    Sitemap reference found

    Local SEO

    Local Search Readiness

    6/100
    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

    F25/100
    Bot Access
    20/25
    Machine Read.
    1/25
    Schema Data
    0/25
    Citation
    4/25

    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
    Text ratio:3%
    Words:3,582
    Token eff.:Poor Structure

    Structured Data

    No Schema

    Citation Readiness

    Opening Summary234w
    Descriptive Headings
    Canonical URL
    Open Graph0/3
    Twitter Card0/3
    Language Tag
    Publish Date
    Author Info
    Lists
    Tables
    TL;DR / Summary
    About Page Link
    Recommendations (12)
    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
    76/100
    12
    Passed
    4
    Critical
    1
    Warnings
    Images & Alt Text
    20/20
    Checks if images have descriptive alt text for screen readers and visually impaired users.
    Semantic Structure
    11/20
    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
    11/15
    Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
    ARIA & Roles
    4/15
    Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
    2 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.
    28/100
    F
    556 mg
    CO₂e / view
    5.4 MB
    Page Weight
    5%
    Cleaner Than
    New Visitor
    635 mg
    vs
    Returning (cached)
    318 mg
    Annual (10K/mo)
    66.7 kg
    Emission Segments
    Data Center
    27 mg
    Network
    163 mg
    Device
    365 mg
    Resource Breakdown
    JavaScript
    713.2 KB
    Images
    2.5 MB
    CSS
    2.1 MB
    HTML
    853 B
    Other
    300 B
    Green Hosting Verified
    Amazon Web Services (AWS)
    Provider Match
    7 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    F

    Security Score

    36%Critical
    Interactive

    HTTPS

    No WAF

    190d

    Certificate Details

    Type

    Domain Validated (DV)

    Certificate Authority

    Amazon

    Key Algorithm

    RSA (2048 bit)

    Signature

    SHA-256 with RSA

    TLS Version

    TLSv1.3

    HTTP Protocol

    HTTP/2

    Valid From

    25.10.2025

    Valid Until

    23.11.2026

    OCSP Stapling

    Enabled

    Subject Alternative Names (2)

    *.mermaid.aimermaid.ai

    SHA-256 Fingerprint

    3D:24:58:76:42:F4:77:79:9D:6A:A0:F1:D6:C4:D1:CB:64:68:05:AB...

    Top Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    access-control-allow-origin
    *
    cache-control
    🟡 0s(public, max-age=0, must-revalidate)
    content-disposition
    inline; filename="web"
    content-encoding
    📦 Gzip(gzip)
    content-type
    text/html; charset=utf-8
    date
    Sun, 17 May 2026 04:57:30 GMT
    Good Warning Issue

    Email Infrastructure

    Google Workspace

    Score

    98

    SPF
    DKIM
    DMARC

    DMARC Policy

    Quarantine (Moderate)

    MX Records (5)

    alt2.aspmx.l.google.com
    aspmx.l.google.com
    alt3.aspmx.l.google.com
    alt4.aspmx.l.google.com

    +1 more

    Domain Information

    mermaidchart.com

    Domain Age
    3y 11m

    Created

    14.06.2022

    Expires

    14.06.2027

    Last Updated

    16.05.2026

    Registrar

    Amazon Registrar, Inc.

    DNSSEC
    Not Enabled

    Privacy & Compliance

    Cookiebot

    Cookie Consent Banner
    Cookiebot
    Privacy Policy
    Terms of Service

    GDPR Indicators

    Cookie consent banner detected
    CMP: Cookiebot
    Privacy policy page linked
    Data Protection Officer mentioned
    Legitimate interest basis mentioned

    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
    71/100
    Mobile Friendly25 breakpoints
    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

    Instrument Serif + Inter Variable

    WCAG AA
    77/100
    Readability
    /30
    22/30

    16px · LH 1.50

    Hierarchy
    /20
    14/20

    7.5x ratio

    WCAG
    /25
    19/25

    4.62:1 min contrast

    Performance
    /25
    22/25

    2 fonts · 3 req

    Heading Font

    Instrument Serif

    Serif120px

    Body Font

    Inter Variable

    Sans16px

    Contrast Ratio

    4.62:1

    WCAG AA (≥4.5:1)

    Reading Comfort

    ~35 CPL

    Narrow lines
    120px
    h1
    80px
    h2
    34px
    h3
    22px
    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).

    ✅ WCAG AA contrast: All text meets 4.5:1 ratio (min 4.6:1).

    ⚠️ Minor heading issue: 0 level skip(s) detected. Maintain sequential order for screen readers.

    ✅ Strong hierarchy: Headlines are 7.5x larger than body text.

    ✅ Lean font stack: 2 font families keeps load times fast.

    Buy on MyFontsVariable FontsFlesch 50

    Color Palette

    6 unique colors
    Light
    #ffffff
    Background· 38.900000000000006%
    #e4f0e4
    Primary· 29.9%
    #d2b7b9
    Secondary· 10.8%
    #b3a1aa
    Secondary· 6.4%
    #584b99
    Secondary· 4%

    Business & Marketing Stack

    6 Tools Detected

    Enterprise

    Behavior Analytics

    3
    Google Tag ManagerFree
    Google AnalyticsFree
    Microsoft ClarityFree

    User behavior and product analytics

    Advertising

    2
    Microsoft AdsEnterprise
    Reddit PixelMid-Market

    Ad platforms and retargeting pixels

    Privacy & Cookies

    1
    CookiebotMid-Market

    Cookie consent and privacy compliance tools

    3

    Categories

    6

    Total Tools

    1

    Enterprise

    2

    Mid-Market

    Assessment: Sophisticated marketing and sales technology infrastructure

    Sponsored

    Scripts & Styles

    11 Resources

    9
    Scripts
    2
    Styles
    9
    Async
    0
    Defer

    Top Script Sources

    consent.cookiebot.com(2)bat.bing.com(2)googletagmanager.com(2)scripts.clarity.ms(1)clarity.ms(1)

    Website Identity

    mermaidchart.com

    3 years old
    Location detected: 🇫🇮 Finlandvia ip
    Amazon Registrar, Inc.📧 Google Workspaceen

    Sponsored

    Last analyzed: 17 May 2026 at 04:57

    Historical Analysis & Change Tracking