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clincalc.com

https://clincalc.com· First analyzed 06 May 2026· Updated 06 May 2026
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clincalc.com
Desktop screenshot of clincalc.com
Mobile screenshot of clincalc.com
Mobile

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Hosting Provider

GearHost, Inc

IP Address

204.246.56.80

Site Location

🇬🇧 United Kingdomvia ip

Server Location

🇬🇧 London, United Kingdom

ASN

AS40728

Organization

GearHost, Inc

Server

Microsoft IIS

Nameservers

ns1.gear.host.ns2.gear.host.

Performance

96

Core Web Vitals

Weight

First Contentful Paint
1.1 s10%
Speed Index
1.4 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
648 KB
33 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
GearHost, Inc

Technology Stack

12 Technologies Detected

CSS Frameworks

3
Tailwind CSS
Bootstrap
Foundation

Analytics

2
Google Analytics
Google Analytics 4

Advertising

2
Google AdsGoogle AdSense

Libraries

1
jQueryv3.3.1

Icon Libraries

1
Font Awesome

Fonts

1
Google Fonts

Web Servers

1
Microsoft IISv8.5

Frameworks

1
ASP.NET

SEO Analysis

C64/100
17
9
0
Meta Tags11/15
Content11/12
Headings5/8
Technical15/25
E-E-A-T3/7
Images2/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile4/4
Indexability3/3
C
clincalc.comclincalc.com

Clinical tools and calculators for medical professionals - ClinCalc

Evidence-based clinical decision support tools and calculators for medical professionals. Includes mobile applications, advanced pharmacokinetic utilities, ...

Description truncated.
Title Length67 chars

Recommended: 50-60 chars (~387px / 580px)

Description Length197 chars

Recommended: 120-160 chars

Issues (0)

    9 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: standard

    32 URLs

    robots.txt

    7 rules

    Sitemap reference found

    Allows all crawlers

    Local SEO

    Local Search Readiness

    11/100
    Poor
    3 12 2

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

    Sponsored

    AI & LLM Readiness

    F38/100
    Bot Access
    20/25
    Machine Read.
    10/25
    Schema Data
    0/25
    Citation
    8/25

    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:7%
    Words:958
    Token eff.:Optimal
    Sections/1K:18.8

    Structured Data

    No Schema

    Citation Readiness

    Opening Summary13w
    Descriptive Headingsavg 2.6w
    Canonical URL
    Open Graph0/3
    Twitter Card0/3
    Language Tag
    Publish Date
    Author Info
    Lists
    Tables
    TL;DR / Summary
    About Page Link
    Recommendations (11)
    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.
    D
    52/100
    7
    Passed
    6
    Critical
    1
    Warnings
    Images & Alt Text
    10/20
    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
    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
    7/15
    Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
    ARIA & Roles
    4/15
    Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
    3 recommendations
    • •Accessibility recommendation preview...
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    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.
    39/100
    B
    80 mg
    CO₂e / view
    648.1 KB
    Page Weight
    80%
    Cleaner Than
    New Visitor
    92 mg
    vs
    Returning (cached)
    46 mg
    Annual (10K/mo)
    9.6 kg
    Emission Segments
    Data Center
    18 mg
    Network
    19 mg
    Device
    43 mg
    Resource Breakdown
    JavaScript
    323.2 KB
    Images
    54.0 KB
    CSS
    217.6 KB
    Fonts
    2.0 KB
    HTML
    32.7 KB
    Other
    18.5 KB
    Green Hosting Not Verified
    GearHost, Inc
    5 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    F

    Security Score

    21%Critical
    Interactive

    HTTPS

    No WAF

    74d

    Certificate Details

    Type

    Domain Validated (DV)

    Certificate Authority

    Let's Encrypt

    Key Algorithm

    RSA (2048 bit)

    Signature

    SHA-256 with RSA

    TLS Version

    TLSv1.2

    HTTP Protocol

    HTTP/1.1

    Valid From

    21.04.2026

    Valid Until

    20.07.2026

    Subject Alternative Names (2)

    clincalc.comwww.clincalc.com

    SHA-256 Fingerprint

    5A:94:F3:B8:2C:1D:54:DD:2C:EE:20:78:99:43:30:21:FE:82:5C:40...

    Top Recommendations

    Security recommendation preview

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    Upgrade to view header details

    HTTP Headers

    Developer Console

    cache-control
    🟣 Private(private)
    content-encoding
    📦 Gzip(gzip)
    content-length
    33228
    content-type
    text/html; charset=utf-8
    date
    Wed, 06 May 2026 22:45:42 GMT
    server
    Microsoft-IIS/8.5
    Good Warning Issue

    Email Infrastructure

    Zoho Mail

    Score

    45

    SPF
    DKIM
    DMARC

    MX Records (5)

    mx3.zoho.com
    mx.zoho.com
    mxa.mailgun.org
    mx2.zoho.com

    +1 more

    Domain Information

    clincalc.com

    Domain Age
    15 years

    Created

    17.04.2011

    Expires

    17.04.2027

    Last Updated

    18.03.2026

    Registrar

    NameCheap, Inc.

    DNSSEC
    Not Enabled

    Privacy & Compliance

    Cookie Consent Banner
    Privacy Policy
    Terms of Service

    GDPR Indicators

    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.
    C
    67/100
    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...
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    Typography & Readability

    Helvetica Neue

    WCAG Partial
    75/100
    Readability
    /30
    23/30

    16px · LH 1.60

    Hierarchy
    /20
    17/20

    2.75x ratio

    WCAG
    /25
    14/25

    1.01:1 min contrast

    Performance
    /25
    21/25

    System fonts

    Heading Font

    Helvetica Neue

    Sans44px

    Body Font

    Helvetica Neue

    Sans16px

    Contrast Ratio

    1.01:1

    23 issues

    Reading Comfort

    ~32 CPL

    Narrow lines
    44px
    h1
    27px
    h3
    16px
    p

    ✅ Excellent readability: 16px body text is ideal for all devices.

    ✅ Optimal line spacing: 1.60 ratio (ideal range 1.4–1.6).

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

    ⚠️ Partial contrast: 23 elements below WCAG AA threshold (min 1.0:1).

    ⚠️ Minor heading issue: 1 level skip(s) detected. Maintain sequential order for screen readers.

    ✅ Strong hierarchy: Headlines are 2.8x larger than body text.

    GGoogle FontsFlesch 16

    Color Palette

    7 unique colors
    2.19:1 Fail Light
    #ffffff
    Background· 63.50000000000001%
    #b0b0a3
    Secondary· 6%
    #4b6a8e
    Secondary· 5.8%
    #1f436d
    Primary· 5.3%
    #2090b2
    Accent· 4.4%

    Business & Marketing Stack

    2 Tools Detected

    Advanced

    Behavior Analytics

    1
    Google AnalyticsFree

    User behavior and product analytics

    Advertising

    1
    Google AdsEnterprise

    Ad platforms and retargeting pixels

    2

    Categories

    2

    Total Tools

    1

    Enterprise

    0

    Mid-Market

    Assessment: Well-developed marketing technology stack

    Ad Networks

    Google AdSense

    Sponsored

    Scripts & Styles

    11 Resources

    7
    Scripts
    4
    Styles
    2
    Async
    0
    Defer

    Top Script Sources

    local(3)pagead2.googlesyndication.com(2)code.jquery.com(1)googletagmanager.com(1)

    Website Identity

    clincalc.com

    15 years old
    Location detected: 🇬🇧 United Kingdomvia ip
    NameCheap, Inc.📧 Zoho Mailen

    Sponsored

    Last analyzed: 06 May 2026 at 22:46

    Historical Analysis & Change Tracking

    clincalc.com Technology Stack - Built With jQuery, Tailwind CSS, Font Awesome, Google Fonts, Google Analytics | StackOptic | StackOptic