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mosquitto.org

https://mosquitto.org· First analyzed 28 Apr 2026· Updated 28 Apr 2026
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mosquitto.org
Desktop screenshot of mosquitto.org
Mobile screenshot of mosquitto.org
Mobile

Sponsored

Hosting Provider

BitFolk Ltd

IP Address

85.119.83.194

Site Location

🇬🇧 United Kingdomvia ip

Server Location

🇬🇧 London, United Kingdom

ASN

AS8943

Organization

BitFolk Ltd

Server

Nginx

Nameservers

a.authns.bitfolk.co.uk.b.authns.bitfolk.com.ns2.ral.me.ns1.ral.me.+2 more

Performance

90

Core Web Vitals

Weight

First Contentful Paint
1.4 s10%
Speed Index
1.9 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
87 KB
11 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
WordPress
cms

Technology Stack

3 Technologies Detected

CSS Frameworks

2
Tailwind CSS
Bulma

Web Servers

1
Nginx

SEO Analysis

B76/100
23
5
0
Meta Tags8/15
Content12/12
Headings8/8
Technical22/25
E-E-A-T0/7
Images4/7
Links5/5
URL5/5
Social3/5
Freshness2/4
Mobile4/4
Indexability3/3
M
mosquitto.orgmosquitto.org

Eclipse Mosquitto

Eclipse Mosquitto is an open source (EPL/EDL licensed) message broker that implements the MQTT protocol versions 5.0, 3.1.1 and 3.1. Mosquitto ...

Description truncated.
Title Length17 chars

Recommended: 50-60 chars (~101px / 580px)

Description Length200 chars

Recommended: 120-160 chars

Issues (0)

    5 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: index

    39 URLs

    39 sub-sitemaps

    robots.txt

    3 rules

    Sitemap reference found

    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

    D52/100
    Bot Access
    20/25
    Machine Read.
    16/25
    Schema Data
    1/25
    Citation
    15/25

    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:45%
    Words:1,183
    Token eff.:Optimal
    Sections/1K:11
    Depth:2/5

    Structured Data

    Microdata
    Article×1.2(min)microdata

    Citation Readiness

    Opening Summary40w
    Descriptive Headingsavg 4.5w
    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
    83/100
    13
    Passed
    1
    Critical
    1
    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
    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.
    63/100
    A+
    11 mg
    CO₂e / view
    86.9 KB
    Page Weight
    95%
    Cleaner Than
    New Visitor
    12 mg
    vs
    Returning (cached)
    6 mg
    Annual (10K/mo)
    1.3 kg
    Emission Segments
    Data Center
    2 mg
    Network
    3 mg
    Device
    6 mg
    Resource Breakdown
    Images
    36.3 KB
    CSS
    43.6 KB
    HTML
    7.0 KB
    Green Hosting Not Verified
    BitFolk Ltd
    3 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    A+

    Security Score

    100%Excellent
    Static / Informational

    HTTPS

    No WAF

    60d

    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/1.1

    Valid From

    29.03.2026

    Valid Until

    27.06.2026

    Subject Alternative Names (2)

    mosquitto.orgwww.mosquitto.org

    SHA-256 Fingerprint

    F1:8F:61:11:44:A4:4E:09:34:13:42:73:39:59:35:8B:40:88:A2:5B...

    Upgrade to view header details

    HTTP Headers

    Developer Console

    cache-control
    🔵 2 Days(max-age=172800)
    connection
    keep-alive
    content-encoding
    📦 Gzip(gzip)
    content-security-policy
    default-src 'self'; script-src 'self' 'sha256-hJBjfe+Z4EmpT3...
    content-type
    text/html
    date
    Tue, 28 Apr 2026 00:12:45 GMT
    Good Warning Issue

    Email Infrastructure

    Custom Mail Server

    Score

    75

    SPF
    DKIM
    DMARC

    DMARC Policy

    Reject (Strictest)

    MX Records (1)

    mail.ral.me

    Domain Information

    mosquitto.org

    Domain Age
    15y 11m

    Created

    31.05.2010

    Expires

    31.05.2027

    Last Updated

    06.04.2025

    Registrar

    Network Solutions, LLC

    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.
    C
    64/100
    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
    2 recommendations
    • •Mobile compatibility recommendation preview...
    Upgrade to view recommendations

    Typography & Readability

    BlinkMacSystemFont

    WCAG Partial
    74/100
    Readability
    /30
    25/30

    16px · LH 1.50

    Hierarchy
    /20
    12/20

    2x ratio · ✓ H1→H6

    WCAG
    /25
    17/25

    2.81:1 min contrast

    Performance
    /25
    20/25

    System fonts

    Heading Font

    BlinkMacSystemFont

    Sans32px

    Body Font

    BlinkMacSystemFont

    Sans16px

    Contrast Ratio

    2.81:1

    17 issues

    Reading Comfort

    ~33 CPL

    Narrow lines
    32px
    h1
    28px
    h2
    24px
    h3
    16px
    p

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

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

    ❌ Very complex text: Flesch score 27/100. Consider shorter sentences and simpler words.

    ⚠️ Partial contrast: 17 elements below WCAG AA threshold (min 2.8:1).

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

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

    Flesch 27

    Color Palette

    6 unique colors
    2.88:1 Fail Light
    #ffffff
    Background· 82.10000000000001%
    #999898
    Other· 2.4%
    #3c5280
    Primary· 0%

    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

    5 Resources

    0
    Scripts
    5
    Styles
    0
    Async
    0
    Defer

    Top Script Sources

    Website Identity

    mosquitto.org

    15 years old
    Location detected: 🇬🇧 United Kingdomvia ip
    Network Solutions, LLCen

    Social Profiles

    GitHub

    Sponsored

    Last analyzed: 28 Apr 2026 at 00:13

    Historical Analysis & Change Tracking