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ishlt.org

https://ishlt.org· First analyzed 01 Jun 2026· Updated 01 Jun 2026
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ishlt.org
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Hosting Provider

Amazon Web Services (AWS)
aws.amazon.com

IP Address

54.197.12.35

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 Ashburn, United States

ASN

AS14618

Organization

AWS EC2 (us-east-1)

Server

Microsoft IIS

Nameservers

ns-1633.awsdns-12.co.uk.ns-283.awsdns-35.com.ns-771.awsdns-32.net.ns-1134.awsdns-13.org.

Performance

99

Core Web Vitals

Weight

First Contentful Paint
789 ms10%
Speed Index
1.0 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
3.2 MB
60 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Sitefinity

Technology Stack

13 Technologies Detected

Frameworks

2
Angular
ASP.NET

Analytics

2
Google Analytics
Google Analytics 4

Advertising

2
Google AdsTwitter Ads

Libraries

1
jQuery

UI Components

1
Slick Carousel

CSS Frameworks

1
Tailwind CSS

Icon Libraries

1
Font Awesome

Fonts

1
Google Fonts

Tag Managers

1
Google Tag Manager

Web Servers

1
Microsoft IISv10.0

SEO Analysis

C61/100
16
9
0
Meta Tags7/15
Content11/12
Headings3/8
Technical18/25
E-E-A-T0/7
Images2/7
Links5/5
URL5/5
Social3/5
Freshness0/4
Mobile4/4
Indexability3/3
I
ishlt.orgishlt.org

Home | ISHLT

The home of the International Society for Heart and Lung Transplantation.

Title Length12 chars

Recommended: 50-60 chars (~72px / 580px)

Description Length73 chars

Recommended: 120-160 chars

Issues (0)

    9 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: standard

    1,879 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

    D44/100
    Bot Access
    20/25
    Machine Read.
    11/25
    Schema Data
    0/25
    Citation
    13/25

    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
    navheader/footer
    Text ratio:9%
    Words:905
    Token eff.:Optimal
    Sections/1K:14.4
    Depth:2/5

    Structured Data

    No Schema

    Citation Readiness

    Opening Summary10w
    Descriptive Headingsavg 4.5w
    Canonical URL
    Open Graph3/3
    Twitter Card0/3
    Language Tag
    Publish Date
    Author Info
    Lists
    Tables
    TL;DR / Summary
    About Page Link
    Recommendations (10)
    AI readiness recommendation preview...
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    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
    79/100
    12
    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
    15/20
    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
    5/15
    Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
    1 recommendation
    • •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.
    34/100
    E
    331 mg
    CO₂e / view
    3.2 MB
    Page Weight
    30%
    Cleaner Than
    New Visitor
    378 mg
    vs
    Returning (cached)
    189 mg
    Annual (10K/mo)
    39.7 kg
    Emission Segments
    Data Center
    16 mg
    Network
    97 mg
    Device
    217 mg
    Resource Breakdown
    JavaScript
    251.2 KB
    Images
    2.9 MB
    Fonts
    1.1 KB
    HTML
    13.8 KB
    Other
    32.7 KB
    Green Hosting Verified
    Amazon Web Services (AWS)
    Provider Match
    6 recommendations
    • •Carbon footprint recommendation preview...
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    A

    Security Score

    81%Very Good
    Interactive

    HTTPS

    No WAF

    162d

    Certificate Details

    Type

    Domain Validated (DV)

    Certificate Authority

    Amazon

    Key Algorithm

    RSA (2048 bit)

    Signature

    SHA-256 with RSA

    TLS Version

    TLSv1.3

    HTTP Protocol

    HTTP/2

    Valid From

    12.10.2025

    Valid Until

    10.11.2026

    OCSP Stapling

    Enabled

    Subject Alternative Names (2)

    *.ishlt.orgishlt.org

    SHA-256 Fingerprint

    EF:93:AF:31:A6:FA:DC:98:F3:F9:EF:68:9C:89:01:C0:10:10:91:CE...

    Top Recommendations

    Security recommendation preview

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    Upgrade to view header details

    HTTP Headers

    Developer Console

    cache-control
    🔴 No Cache(no-cache)
    content-encoding
    📦 Gzip(gzip)
    content-length
    13805
    content-security-policy
    default-src 'self'; script-src *.googleapis.com *.gstatic.co...
    content-type
    text/html; charset=utf-8
    date
    Mon, 01 Jun 2026 10:08:00 GMT
    Good Warning Issue

    Email Infrastructure

    Mimecast

    Score

    70

    SPF
    DKIM
    DMARC

    DMARC Policy

    None (Monitor Only)

    MX Records (2)

    us-smtp-inbound-2.mimecast.com
    us-smtp-inbound-1.mimecast.com

    Domain Information

    ishlt.org

    Domain Age
    28y 7m

    Created

    30.10.1997

    Expires

    29.10.2030

    Last Updated

    06.05.2026

    Registrar

    Amazon Registrar, Inc.

    DNSSEC
    Not Enabled

    Privacy & Compliance

    Cookie Consent Banner
    Privacy Policy
    Terms of Service

    GDPR Indicators

    Privacy policy page linked
    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
    61/100
    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
    2 recommendations
    • •Mobile compatibility recommendation preview...
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    Typography & Readability

    Helvetica

    WCAG AAA
    77/100
    Readability
    /30
    23/30

    18px · LH 1.33

    Hierarchy
    /20
    15/20

    2x ratio

    WCAG
    /25
    19/25

    8.66:1 min contrast

    Performance
    /25
    20/25

    2 fonts · 1 req

    Heading Font

    Helvetica

    Sans36px

    Body Font

    Helvetica

    Sans18px

    Contrast Ratio

    8.66:1

    WCAG AAA (≥7:1)

    Reading Comfort

    ~33 CPL

    Narrow lines
    36px
    h1
    38px
    h3
    18px
    p
    Minor Second
    Scale

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

    ⚠️ Tight line spacing (1.33). Increase to 1.4–1.6 for better readability.

    ❌ Very complex text: Flesch score 25/100. Consider shorter sentences and simpler words.

    ✅ WCAG AAA contrast: All text meets 7:1 ratio (min 8.7:1).

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

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

    GGoogle FontsBuy on MyFontsFlesch 25

    Color Palette

    15 unique colors
    Dark
    #7a7983
    Other· 5.6%
    #fbfcfd
    Background· 15.7%
    #94445b
    Secondary· 8.6%
    #3c4779
    Secondary· 8.6%
    #234884
    Primary· 8.5%
    #cb404d
    Accent· 7.1%
    #090403
    Secondary· 7.1%
    #e8e9d2
    Secondary· 6.6%

    Business & Marketing Stack

    3 Tools Detected

    Advanced

    Behavior Analytics

    2
    Google Tag ManagerFree
    Google AnalyticsFree

    User behavior and product analytics

    Advertising

    1
    Twitter/X AdsMid-Market

    Ad platforms and retargeting pixels

    2

    Categories

    3

    Total Tools

    0

    Enterprise

    1

    Mid-Market

    Assessment: Well-developed marketing technology stack

    Sponsored

    Scripts & Styles

    21 Resources

    19
    Scripts
    2
    Styles
    7
    Async
    0
    Defer

    Top Script Sources

    local(10)googletagmanager.com(3)assets.adobedtm.com(3)static.ads-twitter.com(1)kit.fontawesome.com(1)

    Website Identity

    ishlt.org

    28 years old
    Location detected: 🇺🇸 United Statesvia ip
    Amazon Registrar, Inc.📧 Mimecasten

    Sponsored

    Last analyzed: 01 Jun 2026 at 10:08

    Historical Analysis & Change Tracking