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hdsentinel.com

https://hdsentinel.com· First analyzed 05 May 2026· Updated 05 May 2026
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hdsentinel.com
Desktop screenshot of hdsentinel.com
Mobile screenshot of hdsentinel.com
Mobile

Sponsored

Hosting Provider

Cloudflare
cloudflare.com

IP Address

104.21.22.72

Site Location

🇨🇦 Canadavia ip

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

maria.ns.cloudflare.com.hans.ns.cloudflare.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
374 ms10%
Speed Index
486 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
137 KB
22 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
Cloudflare
CDN
Cloudflare

Technology Stack

4 Technologies Detected

Analytics

2
Google Analytics
Google Analytics 4

Tag Managers

1
Google Tag Manager

CDN

1
Cloudflare

SEO Analysis

B70/100
19
9
0
Meta Tags13/15
Content12/12
Headings8/8
Technical16/25
E-E-A-T3/7
Images4/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile1/4
Indexability3/3
H
hdsentinel.comhdsentinel.com

Hard Disk Sentinel - HDD health and temperature monitoring

Monitoring hard disk health and temperature. Test and repair HDD problems, predict disk failure.

Title Length58 chars

Recommended: 50-60 chars (~352px / 580px)

Description Length96 chars

Recommended: 120-160 chars

Issues (0)

    9 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: standard

    4,148 URLs

    robots.txt

    6 rules

    Local SEO

    Local Search Readiness

    6/100
    Poor
    2 13 2

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

    Sponsored

    AI & LLM Readiness

    D45/100
    Bot Access
    20/25
    Machine Read.
    13/25
    Schema Data
    0/25
    Citation
    12/25

    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:31%
    Words:1,043
    Token eff.:Optimal
    Sections/1K:2.9

    Structured Data

    No Schema

    Citation Readiness

    Opening Summary31w
    Descriptive Headingsavg 5w
    Canonical URL
    Open Graph0/3
    Twitter Card0/3
    Language Tag
    Publish Date
    Author Info
    Lists
    Tables
    TL;DR / Summary
    About Page Link
    Recommendations (8)
    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.
    C
    66/100
    8
    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
    14/20
    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
    12/15
    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.
    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.
    60/100
    A+
    14 mg
    CO₂e / view
    136.8 KB
    Page Weight
    95%
    Cleaner Than
    New Visitor
    16 mg
    vs
    Returning (cached)
    8 mg
    Annual (10K/mo)
    1.7 kg
    Emission Segments
    Data Center
    <0.001 g
    Network
    4 mg
    Device
    9 mg
    Resource Breakdown
    JavaScript
    33.7 KB
    Images
    9.7 KB
    CSS
    86.8 KB
    HTML
    6.6 KB
    Green Hosting Verified
    Cloudflare
    GWF Verified
    4 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    F

    Security Score

    26%Critical
    Interactive

    HTTPS

    WAF

    44d

    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

    20.03.2026

    Valid Until

    18.06.2026

    OCSP Stapling

    Enabled

    Subject Alternative Names (2)

    hdsentinel.com*.hdsentinel.com

    SHA-256 Fingerprint

    E0:9D:DB:FD:A2:39:EA:3A:CD:C5:F9:0D:94:9A:A8:91:AC:8E:FE:6F...

    Top Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    alt-svc
    h3=":443"; ma=86400
    cf-cache-status
    DYNAMIC
    cf-ray🇮🇹 Milan
    9f6e5d8cc8ccbaf1-MXP
    content-encoding
    zstd
    content-type
    text/html; charset=UTF-8
    date
    Tue, 05 May 2026 08:27:20 GMT
    Good Warning Issue

    Email Infrastructure

    Custom Mail Server

    Score

    90

    SPF
    DKIM
    DMARC

    DMARC Policy

    None (Monitor Only)

    MX Records (1)

    mail.hdsentinel.com

    Domain Information

    hdsentinel.com

    Domain Age
    19y 11m

    Created

    09.06.2006

    Expires

    09.06.2026

    Last Updated

    27.07.2025

    Registrar

    NETIM SAS

    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
    48/100
    Not 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

    Impact + Arial

    WCAG Partial
    50/100
    Readability
    /30
    16/30

    13px · LH 1.69

    Hierarchy
    /20
    8/20

    1.15x ratio · ✓ H1→H6

    WCAG
    /25
    14/25

    1:1 min contrast

    Performance
    /25
    12/25

    System fonts

    Heading Font

    Impact

    Display15px

    Body Font

    Arial

    Sans13px

    Contrast Ratio

    1:1

    1 issue

    Reading Comfort

    ~48 CPL

    Optimal (45–75)
    15px
    h1
    19px
    h2
    17px
    h3
    13px
    p
    Minor Second
    Scale

    ❌ Critical: 13px body text is too small. Minimum 14px, recommend 16px+.

    ✅ Optimal line length: ~48 chars/line (ideal 45–75 CPL).

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

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

    ⚠️ Weak hierarchy: Headlines should be ≥2x body size for clear visual structure.

    ⚠️ Text justify detected: Justified text creates uneven word spacing, hurting readability on web.

    Buy on MyFontsFlesch 50

    Color Palette

    9 unique colors
    2.89:1 Fail Light
    #ffffff
    Background· 25.799999999999997%
    #9199a1
    Secondary· 6%
    #d7e4fc
    Primary· 23.3%
    #edf0f5
    Secondary· 11.2%
    #ced5de
    Secondary· 9.7%
    #05040a
    Secondary· 7.5%
    #261675
    Accent· 6%
    #4c4976
    Secondary· 4.3%

    Business & Marketing Stack

    2 Tools Detected

    Growing

    Behavior Analytics

    2
    Google Tag ManagerFree
    Google AnalyticsFree

    User behavior and product analytics

    1

    Categories

    2

    Total Tools

    0

    Enterprise

    0

    Mid-Market

    Assessment: Growing marketing technology adoption

    Sponsored

    Scripts & Styles

    7 Resources

    4
    Scripts
    3
    Styles
    2
    Async
    2
    Defer

    Top Script Sources

    googletagmanager.com(2)jquery-latest.min.js(1)menuscript.js(1)

    Website Identity

    hdsentinel.com

    19 years old
    Location detected: 🇨🇦 Canadavia ip
    NETIM SASen

    Social Profiles

    Facebook

    Sponsored

    Last analyzed: 05 May 2026 at 08:27

    Historical Analysis & Change Tracking