StackOptic
Back to Search
dan.org favicon

dan.org

https://dan.org· First analyzed 01 May 2026· Updated 01 May 2026
Export
dan.org
Desktop screenshot of dan.org
Mobile screenshot of dan.org
Mobile

Sponsored

Hosting Provider

HIVELOCITY

IP Address

107.155.93.18

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 Dallas, United States

ASN

AS29802

Server

Apache

Nameservers

ns11.dnsmadeeasy.com.ns10.dnsmadeeasy.com.ns12.dnsmadeeasy.com.ns13.dnsmadeeasy.com.+2 more

Performance

84

Core Web Vitals

Weight

First Contentful Paint
1.9 s10%
Speed Index
2.4 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
3.5 MB
151 requests

Image Optimization

Lazy LoadWebPResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
WordPressv6.9.4
cms
Divers Alert Networkv1.0.0Custom
by DesignHammer
View Theme

Technology Stack

29 Technologies Detected

Plugins

18
Content Views Query And Display Post PagePt Content Views ProEvents Calendar ProEmbedpressEmbedpress ProAccessibility Plugin Onetap ProGo_PricingWidget OptionsEmail Encoder BundleSearch Filter ProMastersliderAdd To AnyNextend Smart Slider3 ProThe Events CalendarAdrotate ProWpfront Scroll Top
Yoast SEO
Gutenberg

Libraries

2
jQueryv3.7.1
jQuery UI

CSS Frameworks

2
Tailwind CSS
Bootstrap

Analytics

2
Google Analytics
Google Analytics 4

Other

1
GSAPv1.11.2

Icon Libraries

1
Font Awesome

Fonts

1
Google Fonts

Tag Managers

1
Google Tag Manager

Web Servers

1
Apachev2.4.62

SEO Analysis

B75/100
22
8
0
Meta Tags9/15
Content10/12
Headings8/8
Technical24/25
E-E-A-T0/7
Images5/7
Links2/5
URL5/5
Social4/5
Freshness4/4
Mobile1/4
Indexability3/3
D
dan.orgdan.org

Home - Divers Alert Network

DAN promotes diver safety worldwide through research, medicine, education & emergency support. Get answers: What should divers do for their own safety?

Title Length27 chars

Recommended: 50-60 chars (~168px / 580px)

Description Length151 chars

Recommended: 120-160 chars

Issues (0)

    8 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: index

    23 URLs

    23 sub-sitemaps

    robots.txt

    3 rules

    Sitemap reference found

    Allows all crawlers

    Local SEO

    Local Search Readiness

    13/100
    Poor
    4 12 1

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

    Sponsored

    AI & LLM Readiness

    D44/100
    Bot Access
    20/25
    Machine Read.
    7/25
    Schema Data
    4/25
    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.txt
    llms-full.txt
    Semantic HTML
    Heading Hierarchy
    Text ratio:1%
    Words:864
    Token eff.:Optimal

    Structured Data

    3 JSON-LD
    WebSiteBreadcrumbListSearchAction

    Citation Readiness

    Opening Summary12w
    Descriptive Headingsavg 3.9w
    Canonical URL
    Open Graph2/3
    Twitter Card1/3
    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.
    A
    82/100
    15
    Passed
    0
    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
    5/15
    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
    15/15
    Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
    ARIA & Roles
    7/15
    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.
    25/100
    F
    442 mg
    CO₂e / view
    3.5 MB
    Page Weight
    15%
    Cleaner Than
    New Visitor
    505 mg
    vs
    Returning (cached)
    252 mg
    Annual (10K/mo)
    53.0 kg
    Emission Segments
    Data Center
    99 mg
    Network
    106 mg
    Device
    237 mg
    Resource Breakdown
    JavaScript
    283.5 KB
    Images
    2.7 MB
    CSS
    446.1 KB
    Fonts
    4.8 KB
    HTML
    88.8 KB
    Green Hosting Not Verified
    HIVELOCITY
    6 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    F

    Security Score

    26%Critical
    Interactive

    HTTPS

    No WAF

    43d

    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/1.1

    Valid From

    16.03.2026

    Valid Until

    14.06.2026

    Subject Alternative Names (2)

    dan.orgwww.dan.org

    SHA-256 Fingerprint

    41:70:1F:36:1E:37:8D:4F:07:07:E0:57:76:B0:4F:80:3B:91:44:C6...

    Top Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    accept-ranges
    bytes
    connection
    Keep-Alive
    content-encoding
    📦 Gzip(gzip)
    content-length
    90649
    content-type
    text/html; charset=UTF-8
    date
    Fri, 01 May 2026 17:31:40 GMT
    Good Warning Issue

    Email Infrastructure

    Microsoft 365

    Score

    95

    SPF
    DKIM
    DMARC

    DMARC Policy

    Reject (Strictest)

    MX Records (1)

    dan-org.mail.protection.outlook.com

    Domain Information

    dan.org

    Domain Age
    19y 10m

    Created

    05.07.2006

    Expires

    05.07.2033

    Last Updated

    10.06.2024

    Registrar

    GoDaddy.com, LLC

    DNSSEC
    Not Enabled

    Privacy & Compliance

    iubenda

    Cookie Consent Banner
    iubenda
    Privacy Policy
    Terms of Service

    GDPR Indicators

    Cookie consent banner detected
    CMP: iubenda
    Privacy policy page linked
    Data Protection Officer 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.
    A
    83/100
    Mobile Friendly35 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

    Helvetica Neue + -apple-system

    WCAG AAA
    66/100
    Readability
    /30
    18/30

    14px · LH 1.40

    Hierarchy
    /20
    16/20

    3.43x ratio · ✓ H1→H6

    WCAG
    /25
    20/25

    7.72:1 min contrast

    Performance
    /25
    12/25

    System fonts

    Heading Font

    Helvetica Neue

    Sans48px

    Body Font

    -apple-system

    Sans14px

    Contrast Ratio

    7.72:1

    WCAG AAA (≥7:1)

    Reading Comfort

    ~39 CPL

    Narrow lines
    48px
    h1
    50px
    h2
    34px
    h3
    14px
    p

    ⚠️ Small text: 14px may strain on mobile. Use ≥16px for WCAG compliance.

    ✅ Optimal line spacing: 1.40 ratio (ideal range 1.4–1.6).

    ❌ Very complex text: Flesch score 16/100. Consider shorter sentences and simpler words.

    ✅ WCAG AAA contrast: All text meets 7:1 ratio (min 7.7:1).

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

    ✅ Strong hierarchy: Headlines are 3.4x larger than body text.

    GGoogle FontsFluid Type (rem)Flesch 16

    Color Palette

    8 unique colors
    19.26:1 AAA Light
    #f5f5f5
    Background· 26%
    #000000
    Background· 20.5%
    #577398
    Primary· 14.6%
    #7695b9
    Secondary· 11.8%
    #2c5073
    Secondary· 9.4%
    #9eafc7
    Secondary· 7.3%
    #c5d1df
    Secondary· 5.3%
    #211522
    Secondary· 5.3%

    Business & Marketing Stack

    3 Tools Detected

    Advanced

    Behavior Analytics

    2
    Google Tag ManagerFree
    Google AnalyticsFree

    User behavior and product analytics

    Privacy & Cookies

    1
    IubendaSMB

    Cookie consent and privacy compliance tools

    2

    Categories

    3

    Total Tools

    0

    Enterprise

    0

    Mid-Market

    Assessment: Well-developed marketing technology stack

    Sponsored

    Scripts & Styles

    30 Resources

    20
    Scripts
    10
    Styles
    9
    Async
    7
    Defer

    Top Script Sources

    dan.org(11)static.addtoany.com(3)cdn.iubenda.com(2)googletagmanager.com(2)cs.iubenda.com(1)

    Website Identity

    Home - Divers Alert Network

    DAN promotes diver safety worldwide through research, medicine, education & emergency support. Get answers: What should divers do for their own safety?

    dan.org/
    19 years old
    Location detected: 🇺🇸 United Statesvia ip
    GoDaddy.com, LLC📧 Microsoft 365en-US

    Sponsored

    Last analyzed: 01 May 2026 at 17:32

    Historical Analysis & Change Tracking