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backtrack-linux.org

https://backtrack-linux.org· First analyzed 05 May 2026· Updated 05 May 2026
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backtrack-linux.org
Desktop screenshot of backtrack-linux.org
Mobile screenshot of backtrack-linux.org
Mobile

Sponsored

Hosting Provider

Cloudflare
cloudflare.com

IP Address

188.114.96.3

Site Location

🇨🇦 Canadavia ip

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

CloudFlare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

nina.ns.cloudflare.com.nash.ns.cloudflare.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
272 ms10%
Speed Index
354 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
661 KB
9 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Blogger

Technology Stack

3 Technologies Detected

CSS Frameworks

1
Tailwind CSS

Fonts

1
Google Fonts

CDN

1
Cloudflare

SEO Analysis

D58/100
15
9
0
Meta Tags11/15
Content3/12
Headings8/8
Technical17/25
E-E-A-T2/7
Images4/7
Links2/5
URL5/5
Social0/5
Freshness0/4
Mobile3/4
Indexability3/3
B
backtrack-linux.orgbacktrack-linux.org

BackTrack Linux - Penetration Testing Distribution

BackTrack Linux was 2006-2013. Now reborn as Kali Linux

Title Length50 chars

Recommended: 50-60 chars (~296px / 580px)

Description Length55 chars

Recommended: 120-160 chars

Issues (0)

    9 issues found

    Upgrade to view details

    Crawlability

    Sitemap
    robots.txt

    2 rules

    Allows all crawlers

    Local SEO

    Local Search Readiness

    11/100
    Poor
    3 14

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

    Sponsored

    AI & LLM Readiness

    F32/100
    Bot Access
    20/25
    Machine Read.
    4/25
    Schema Data
    2/25
    Citation
    6/25

    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:4%
    Words:131
    Token eff.:Too Short
    Sections/1K:7.6

    Structured Data

    1 JSON-LD
    Organization×1.1

    Citation Readiness

    Opening Summary
    Descriptive Headingsavg 6w
    Canonical URL
    Open Graph0/3
    Twitter Card0/3
    Language Tag
    Publish Date
    Author Info
    Lists
    Tables
    TL;DR / Summary
    About Page Link
    Recommendations (10)
    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
    74/100
    10
    Passed
    3
    Critical
    0
    Warnings
    Images & Alt Text
    20/20
    Checks if images have descriptive alt text for screen readers and visually impaired users.
    Semantic Structure
    14/20
    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
    1/15
    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.
    63/100
    A
    67 mg
    CO₂e / view
    661.3 KB
    Page Weight
    80%
    Cleaner Than
    New Visitor
    76 mg
    vs
    Returning (cached)
    38 mg
    Annual (10K/mo)
    8.0 kg
    Emission Segments
    Data Center
    3 mg
    Network
    20 mg
    Device
    44 mg
    Resource Breakdown
    Images
    129.9 KB
    CSS
    525.3 KB
    HTML
    6.1 KB
    Green Hosting Verified
    Cloudflare
    GWF Verified
    3 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    B

    Security Score

    73%Good
    Static / Informational

    HTTPS

    WAF

    40d

    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+H3

    Valid From

    17.03.2026

    Valid Until

    15.06.2026

    OCSP Stapling

    Enabled

    Subject Alternative Names (2)

    backtrack-linux.org*.backtrack-linux.org

    SHA-256 Fingerprint

    B0:32:EF:E9:CA:76:B6:B0:68:98:29:70:F0:AA:0B:EF:D6:4B:25:64...

    Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    alt-svc
    h3=":443"; ma=86400
    cache-control
    🟡 600s(max-age=600)
    cf-cache-status
    DYNAMIC
    cf-ray🇫🇷 Paris
    9f71fa636ac96f3f-CDG
    content-encoding
    zstd
    content-type
    text/html; charset=utf-8
    Good Warning Issue

    Email Infrastructure

    Google Workspace

    Score

    65

    SPF
    DKIM
    DMARC

    DMARC Policy

    None (Monitor Only)

    MX Records (5)

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

    +1 more

    Domain Information

    backtrack-linux.org

    Domain Age
    17 years

    Created

    29.04.2009

    Expires

    29.04.2027

    Last Updated

    04.03.2026

    Registrar

    Gandi 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
    67/100
    Mobile Friendly3 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=1.0
    2 recommendations
    • •Mobile compatibility recommendation preview...
    Upgrade to view recommendations

    Typography & Readability

    Open Sans

    WCAG Fail
    66/100
    Readability
    /30
    24/30

    21px · LH 1.40

    Hierarchy
    /20
    14/20

    2x ratio · ✓ H1→H6

    WCAG
    /25
    14/25

    1:1 min contrast

    Performance
    /25
    14/25

    1 font

    Heading Font

    Open Sans

    Sans42px

    Body Font

    Open Sans

    Sans21px

    Contrast Ratio

    1:1

    25 issues

    Reading Comfort

    ~43 CPL

    Narrow lines
    42px
    h1
    24px
    h2
    21px
    p

    ✅ Excellent readability: 21px body text is ideal for all devices.

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

    ⚠️ Hard to read: Flesch score 44/100. Simplify sentences for wider reach.

    ❌ Low contrast: 25 elements fail WCAG AA (min 1.0:1). Increase text/background contrast.

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

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

    Buy on MyFontsFlesch 44

    Color Palette

    6 unique colors
    6.28:1 AA Dark
    #000000
    Background· 25.8%
    #8f8c89
    Other· 4.4%

    Sponsored

    Website Identity

    BackTrack Linux

    BackTrack Linux

    Organization
    www.backtrack-linux.org/
    17 years old
    Location detected: 🇨🇦 Canadavia ip
    Gandi SAS📧 Google Workspaceen

    Sponsored

    Last analyzed: 05 May 2026 at 18:58

    Historical Analysis & Change Tracking