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dshield.org

https://dshield.org· First analyzed 10 May 2026· Updated 10 May 2026
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dshield.org
Desktop screenshot of dshield.org
Mobile screenshot of dshield.org
Mobile

Sponsored

Hosting Provider

Cloudflare
cloudflare.com

IP Address

104.26.3.15

Site Location

🇺🇸 Bethesda, United Statesvia schema_nap

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

ivy.ns.cloudflare.com.jeff.ns.cloudflare.com.

Performance

97

Core Web Vitals

Weight

First Contentful Paint
1.0 s10%
Speed Index
1.3 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
355 KB
37 requests

Image Optimization

Lazy Load
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Frontend
Styling
Bootstrap
Infrastructure
Hosting
Cloudflare
CDN
Cloudflare

Progressive Web App

Web ManifestApple Touch Icon

Technology Stack

5 Technologies Detected

CSS Frameworks

2
Bootstrap
Tailwind CSS

Libraries

1
jQueryv3.7.0

Icon Libraries

1
Font Awesome

CDN

1
Cloudflare

SEO Analysis

A80/100
22
5
0
Meta Tags15/15
Content12/12
Headings6/8
Technical20/25
E-E-A-T5/7
Images2/7
Links5/5
URL5/5
Social3/5
Freshness0/4
Mobile4/4
Indexability3/3
D
dshield.orgdshield.org

SANS.edu Internet Storm Center - SANS Internet Storm Center

SANS.edu Internet Storm Center. Today's Top Story: Another Universal Linux Local Privilege Escalation (LPE) Vulnerability: Dirty Frag;

Title Length59 chars

Recommended: 50-60 chars (~364px / 580px)

Description Length134 chars

Recommended: 120-160 chars

Issues (0)

    5 issues found

    Upgrade to view details

    Crawlability

    Sitemap
    robots.txt

    41 rules

    Sitemap reference found

    Local SEO

    Local Search Readiness

    25/100
    Needs Work
    7 13

    Sponsored

    AI & LLM Readiness

    D47/100
    Bot Access
    15/25
    Machine Read.
    10/25
    Schema Data
    3/25
    Citation
    19/25

    AI Bot Access

    6/14 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
    code blocks
    Text ratio:27%
    Words:3,144
    Token eff.:Good
    Sections/1K:6.4
    Depth:1/5

    Structured Data

    1 JSON-LD
    Organization×1.1
    sameAs entity links

    Citation Readiness

    Opening Summary130w
    Descriptive Headingsavg 8.9w
    Canonical URL
    Open Graph3/3
    Twitter Card0/3
    Language Tag
    Publish Date
    Author Info
    Lists
    Tables
    TL;DR / Summary
    About Page Link
    Recommendations (7)
    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
    71/100
    9
    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
    10/15
    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
    6/15
    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.
    71/100
    A+
    36 mg
    CO₂e / view
    354.9 KB
    Page Weight
    90%
    Cleaner Than
    New Visitor
    41 mg
    vs
    Returning (cached)
    21 mg
    Annual (10K/mo)
    4.3 kg
    Emission Segments
    Data Center
    2 mg
    Network
    11 mg
    Device
    24 mg
    Resource Breakdown
    JavaScript
    69.6 KB
    Images
    27.3 KB
    CSS
    226.1 KB
    HTML
    9.3 KB
    Other
    22.6 KB
    Green Hosting Verified
    Cloudflare
    GWF Verified
    4 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    C

    Security Score

    66%Fair
    Interactive

    HTTPS

    WAF

    77d

    Certificate Details

    Type

    Domain Validated (DV)

    Certificate Authority

    Google Trust Services

    Key Algorithm

    ECDSA (secp256r1) (256 bit)

    Signature

    ECDSA with SHA-256

    TLS Version

    TLSv1.3

    HTTP Protocol

    HTTP/2

    Valid From

    27.04.2026

    Valid Until

    26.07.2026

    OCSP Stapling

    Enabled

    Subject Alternative Names (2)

    dshield.org*.dshield.org

    SHA-256 Fingerprint

    8A:48:7A:26:6D:F7:D5:CF:0B:85:D6:94:98:9D:73:CA:A9:7A:93:97...

    Top Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    cf-cache-status
    DYNAMIC
    cf-ray🇩🇪 Frankfurt
    9f9a7984add7196a-FRA
    content-encoding
    ⚡ Brotli(br)
    content-type
    text/html; charset=UTF-8
    date
    Sun, 10 May 2026 16:56:00 GMT
    expect-ct
    max-age=0, report-uri="https://isc.sans.edu/cspreport.html"
    Good Warning Issue

    Email Infrastructure

    Custom Mail Server

    Score

    98

    SPF
    DKIM
    DMARC

    DMARC Policy

    Quarantine (Moderate)

    MX Records (2)

    mail-1b.dshield.org
    mail-1a.dshield.org

    Domain Information

    dshield.org

    Domain Age
    25y 10m

    Created

    07.07.2000

    Expires

    07.07.2026

    Last Updated

    03.09.2025

    Registrar

    NameCheap, Inc.

    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.
    D
    54/100
    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
    4 recommendations
    • •Mobile compatibility recommendation preview...
    Upgrade to view recommendations

    Typography & Readability

    Open Sans

    WCAG AA
    70/100
    Readability
    /30
    24/30

    18px · LH 1.56

    Hierarchy
    /20
    17/20

    2x ratio

    WCAG
    /25
    18/25

    5.14:1 min contrast

    Performance
    /25
    11/25

    1 font · 4 req

    Heading Font

    Open Sans

    Sans36px

    Body Font

    Open Sans

    Sans18px

    Contrast Ratio

    5.14:1

    WCAG AA (≥4.5:1)

    Reading Comfort

    Single Font Family

    left aligned
    36px
    h1
    24px
    h2
    18px
    h3
    18px
    p

    ✅ Excellent readability: 18px body text is ideal for all devices.

    ✅ Optimal line spacing: 1.56 ratio (ideal range 1.4–1.6).

    ⚠️ Hard to read: Flesch score 42/100. Simplify sentences for wider reach.

    ✅ WCAG AA contrast: All text meets 4.5:1 ratio (min 5.1:1).

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

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

    Buy on MyFontsFlesch 42

    Color Palette

    6 unique colors
    2.34:1 Fail Light
    #ffffff
    Background· 74.2%
    #a8aaa8
    Other· 6.2%
    #7e0101
    Primary· 10.1%
    #89504c
    Secondary· 2.8%

    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

    15 Resources

    9
    Scripts
    6
    Styles
    0
    Async
    0
    Defer

    Top Script Sources

    local(5)js(3)isc.sans.edu(1)

    Website Identity

    SANS Internet Storm Center

    SANS Internet Storm Center

    Organization
    handlers@isc.sans.edu
    isc.sans.edu/
    25 years old

    8120 Woodmont Avenue, Suite 310, Bethesda

    20814, Bethesda, Maryland

    USA

    Location detected: 🇺🇸 United States, Bethesdavia schema_nap
    NameCheap, Inc.en

    Sponsored

    Last analyzed: 10 May 2026 at 16:56

    Historical Analysis & Change Tracking