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hacksplaining.com

https://hacksplaining.com· First analyzed 28 May 2026· Updated 28 May 2026
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hacksplaining.com
Desktop screenshot of hacksplaining.com
Mobile screenshot of hacksplaining.com
Mobile

Sponsored

Hosting Provider

Vercel
vercel.com

IP Address

216.150.1.193

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 Walnut, United States

ASN

AS16509

Organization

Vercel, Inc

Server

Vercel

Nameservers

ns1.vercel-dns.com.ns2.vercel-dns.com.

Performance

95

Core Web Vitals

Weight

First Contentful Paint
1.2 s10%
Speed Index
1.5 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
930 KB
103 requests

Image Optimization

Responsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Frontend
Framework
Svelte
Styling
Tailwind CSS
Infrastructure
Platform
Vercel

Technology Stack

6 Technologies Detected

Frameworks

1
Svelte

Meta Frameworks

1
SvelteKit

CSS Frameworks

1
Tailwind CSS

Fonts

1
Google Fonts

Analytics

1
FullStory

Platforms

1
Vercel

SEO Analysis

A87/100
26
3
0
Meta Tags14/15
Content8/12
Headings8/8
Technical23/25
E-E-A-T7/7
Images5/7
Links3/5
URL5/5
Social5/5
Freshness2/4
Mobile4/4
Indexability3/3
H
hacksplaining.comhacksplaining.com

Hacksplaining: Free Secure Coding Lessons | Learn to Hack

Hacksplaining teaches secure coding through interactive lessons where you exploit attacks, then learn fixes. Free. 45+ lessons covering OWASP Top 10 and AI-e...

Description truncated.
Title Length57 chars

Recommended: 50-60 chars (~340px / 580px)

Description Length168 chars

Recommended: 120-160 chars

Issues (0)

    3 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: standard

    83 URLs

    robots.txt

    7 rules

    Sitemap reference found

    Local SEO

    Local Search Readiness

    13/100
    Poor
    3 15

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

    Sponsored

    AI & LLM Readiness

    C64/100
    Bot Access
    20/25
    Machine Read.
    14/25
    Schema Data
    14/25
    Citation
    16/25

    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
    code blocksnavheader/footer
    Text ratio:5%
    Words:711
    Token eff.:Optimal
    Sections/1K:29.5
    Depth:3/5

    Structured Data

    5 JSON-LD
    FAQPage×1.5Person×1.3Organization×1.1WebSiteBreadcrumbList
    sameAs entity links

    Citation Readiness

    Opening Summary50w
    Descriptive Headingsavg 2.8w
    Canonical URL
    Open Graph2/3
    Twitter Card3/3
    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.
    A
    88/100
    14
    Passed
    1
    Critical
    0
    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
    9/15
    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.
    66/100
    B
    94 mg
    CO₂e / view
    930.4 KB
    Page Weight
    80%
    Cleaner Than
    New Visitor
    107 mg
    vs
    Returning (cached)
    54 mg
    Annual (10K/mo)
    11.3 kg
    Emission Segments
    Data Center
    5 mg
    Network
    28 mg
    Device
    62 mg
    Resource Breakdown
    JavaScript
    645.3 KB
    Images
    97.4 KB
    CSS
    173.9 KB
    Fonts
    1.1 KB
    HTML
    12.1 KB
    Other
    640 B
    Green Hosting Verified
    Vercel
    Provider Match
    2 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    B

    Security Score

    76%Good
    Static / Informational

    HTTPS

    No WAF

    87d

    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/2

    Valid From

    26.05.2026

    Valid Until

    24.08.2026

    Subject Alternative Names (2)

    *.hacksplaining.comhacksplaining.com

    SHA-256 Fingerprint

    F1:9A:6A:DA:6C:43:17:C7:04:8C:A9:71:2C:DD:A9:8A:67:1B:F6:F8...

    Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    access-control-allow-credentials
    true
    access-control-allow-headers
    X-CSRF-Token, X-Requested-With, Accept, Accept-Version, Cont...
    access-control-allow-methods
    GET,OPTIONS,PATCH,DELETE,POST,PUT
    access-control-allow-origin
    *
    age
    0
    cache-control
    🟡 0s(public, max-age=0, must-revalidate)
    Good Warning Issue

    Email Infrastructure

    Google Workspace

    Score

    90

    SPF
    DKIM
    DMARC

    DMARC Policy

    None (Monitor Only)

    MX Records (6)

    alt1.aspmx.l.google.com
    aspmx.l.google.com
    alt2.aspmx.l.google.com
    6fn4jvvxps4pxnppw7zgajgtkldtezwbskmslak3jcrl77jqtfja.mx-verification.google.com

    +2 more

    Domain Information

    hacksplaining.com

    Domain Age
    10y 5m

    Created

    12.12.2015

    Expires

    12.12.2026

    Last Updated

    14.05.2026

    Registrar

    Amazon Registrar, 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.
    B
    73/100
    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
    1 recommendation
    • •Mobile compatibility recommendation preview...
    Upgrade to view recommendations

    Typography & Readability

    Space Grotesk + RobotoMono

    WCAG Partial
    71/100
    Readability
    /30
    22/30

    18px · LH 1.63

    Hierarchy
    /20
    19/20

    3.48x ratio · ✓ H1→H6

    WCAG
    /25
    14/25

    1:1 min contrast

    Performance
    /25
    16/25

    3 fonts · 3 req

    Heading Font

    Space Grotesk

    Sans64px

    Body Font

    RobotoMono

    Mono18px

    Contrast Ratio

    1:1

    31 issues

    Reading Comfort

    ~34 CPL

    Narrow lines
    64px
    h1
    40px
    h2
    32px
    h3
    18px
    p

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

    ⚠️ Partial contrast: 31 elements below WCAG AA threshold (min 1.0:1).

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

    ✅ Strong hierarchy: Headlines are 3.5x larger than body text.

    ✅ Modern fluid typography: clamp() with rem units ensures zoom accessibility (WCAG 1.4.4).

    ✅ Smart font loading: font-display: swap prevents invisible text during load (FOIT).

    GGoogle FontsBuy on MyFontsFluid Type (rem)Flesch 54

    Color Palette

    3 unique colors
    Light
    #f9fafc
    Primary· 64.6%
    #101727
    Secondary· 30.800000000000004%
    #5d6c93
    Secondary· 4.6%

    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

    12 Resources

    2
    Scripts
    10
    Styles
    0
    Async
    2
    Defer

    Top Script Sources

    local(2)

    Website Identity

    Hacksplaining

    Hacksplaining

    Organization

    Interactive secure code and compliance training for developers and teams

    www.hacksplaining.com
    10 years old
    Location detected: 🇺🇸 United Statesvia ip
    Amazon Registrar, Inc.📧 Google Workspaceen

    Sponsored

    Last analyzed: 28 May 2026 at 12:37

    Historical Analysis & Change Tracking