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iho.int

https://iho.int· First analyzed 02 May 2026· Updated 02 May 2026
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iho.int
Desktop screenshot of iho.int
Mobile screenshot of iho.int
Mobile

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Hosting Provider

Transip NL VPS Pod5 Ams4

IP Address

136.144.186.154

Site Location

🇳🇱 Netherlandsvia ip

Server Location

🇳🇱 De Waal, Netherlands

ASN

AS20857

Organization

Transip NL VPS Pod5 Ams4

Server

Apache

Nameservers

ns106.ovh.net.dns106.ovh.net.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
685 ms10%
Speed Index
890 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
1.5 MB
43 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Frontend
Styling
Tailwind CSS
Infrastructure
Hosting
Transip NL VPS Pod5 Ams4

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

7 Technologies Detected

CSS Frameworks

2
Bootstrap
Tailwind CSS

Analytics

2
Google Analytics
Google Analytics 4

Icon Libraries

1
Font Awesome

Tag Managers

1
Google Tag Manager

Web Servers

1
Apachev2.4.52

SEO Analysis

C69/100
20
7
0
Meta Tags9/15
Content12/12
Headings8/8
Technical15/25
E-E-A-T3/7
Images2/7
Links5/5
URL5/5
Social3/5
Freshness0/4
Mobile4/4
Indexability3/3
I
iho.intiho.int

Home | IHO

A principal Aim of the IHO is to ensure that all the world's seas, oceans and navigable waters are surveyed and charted.

Title Length10 chars

Recommended: 50-60 chars (~63px / 580px)

Description Length120 chars

Recommended: 120-160 chars

Issues (0)

    7 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: standard

    1,713 URLs

    robots.txt

    7 rules

    Local SEO

    Local Search Readiness

    20/100
    Needs Work
    6 9 2

    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
    nav
    Text ratio:9%
    Words:634
    Token eff.:Optimal
    Sections/1K:7.9
    Depth:1/5

    Structured Data

    No Schema

    Citation Readiness

    Opening Summary79w
    Descriptive Headingsavg 2w
    Canonical URL
    Open Graph1/3
    Twitter Card2/3
    Language Tag
    Publish Date
    Author Info
    Lists
    Tables
    TL;DR / Summary
    About Page Link
    Recommendations (9)
    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
    73/100
    12
    Passed
    4
    Critical
    1
    Warnings
    Images & Alt Text
    10/20
    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
    9/15
    Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
    3 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.
    52/100
    C
    158 mg
    CO₂e / view
    1.5 MB
    Page Weight
    60%
    Cleaner Than
    New Visitor
    181 mg
    vs
    Returning (cached)
    90 mg
    Annual (10K/mo)
    19.0 kg
    Emission Segments
    Data Center
    8 mg
    Network
    47 mg
    Device
    104 mg
    Resource Breakdown
    JavaScript
    54.3 KB
    Images
    179.1 KB
    CSS
    1.3 MB
    HTML
    7.9 KB
    Green Hosting Verified
    Transip
    GWF Verified
    3 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    F

    Security Score

    21%Critical
    Interactive

    HTTPS

    No WAF

    78d

    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/1.1

    Valid From

    21.04.2026

    Valid Until

    20.07.2026

    Subject Alternative Names (2)

    iho.intwww.iho.int

    SHA-256 Fingerprint

    A3:C6:F9:97:CE:E6:84:16:40:42:E0:5A:A7:15:96:50:C6:BE:D9:50...

    Top Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    cache-control
    🟡 0s(max-age=0, must-revalidate, private)
    connection
    Keep-Alive
    content-encoding
    📦 Gzip(gzip)
    content-length
    7836
    content-type
    text/html; charset=UTF-8
    date
    Sat, 02 May 2026 21:47:44 GMT
    Good Warning Issue

    Email Infrastructure

    Microsoft 365

    Score

    98

    SPF
    DKIM
    DMARC

    DMARC Policy

    Quarantine (Moderate)

    MX Records (1)

    iho-int.mail.protection.outlook.com

    Domain Information

    iho.int

    Domain Age
    20y 8m

    Created

    16.08.2005

    Last Updated

    15.12.2023

    DNSSEC
    Not Enabled

    Privacy & Compliance

    Cookie Consent Banner
    Privacy Policy
    Terms of Service

    GDPR Indicators

    Cookie consent banner detected
    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.
    C
    68/100
    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...
    Upgrade to view recommendations

    Typography & Readability

    Helvetica Neue LT W05_75 Bold + Helvetica Neue LT W05_45 Light

    WCAG Partial
    56/100
    Readability
    /30
    17/30

    15px · LH 1.33

    Hierarchy
    /20
    14/20

    3.33x ratio · ✓ H1→H6

    WCAG
    /25
    14/25

    2.47:1 min contrast

    Performance
    /25
    11/25

    2 fonts · 9 req

    Heading Font

    Helvetica Neue LT W05_75 Bold

    Sans50px

    Body Font

    Helvetica Neue LT W05_45 Light

    Sans15px

    Contrast Ratio

    2.47:1

    24 issues

    Reading Comfort

    ~43 CPL

    Narrow lines
    50px
    h1
    30px
    h2
    25px
    h3
    20px
    h4
    15px
    p

    ⚠️ Small text: 15px may strain on mobile. Use ≥16px for WCAG compliance.

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

    ❌ Very complex text: Flesch score 20/100. Consider shorter sentences and simpler words.

    ⚠️ Partial contrast: 24 elements below WCAG AA threshold (min 2.5:1).

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

    ✅ Strong hierarchy: Headlines are 3.3x larger than body text.

    Buy on MyFontsFlesch 20

    Color Palette

    13 unique colors
    3.52:1 AA Large Light
    #ffffff
    Text· 9.3%
    #848991
    Other· 6.1%
    #152d41
    Accent· 20.1%
    #115c74
    Accent· 12.9%
    #607c89
    Secondary· 7.9%
    #114b61
    Accent· 7.1%
    #0babab
    Primary· 6%
    #3d7587
    Secondary· 5.6%

    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

    19 Resources

    16
    Scripts
    3
    Styles
    3
    Async
    0
    Defer

    Top Script Sources

    local(10)googletagmanager.com(2)fast.fonts.net(2)google-analytics.com(1)cdnjs.cloudflare.com(1)

    Website Identity

    iho.int

    info@iho.int
    +37793108100
    20 years old

    4b quai Antoine 1erB.P. 445MC 98011 MONACO CEDEX

    Location detected: 🇳🇱 Netherlandsvia ip
    📧 Microsoft 365en

    Sponsored

    Last analyzed: 02 May 2026 at 21:47

    Historical Analysis & Change Tracking