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ust.is

https://ust.is· First analyzed 18 May 2026· Updated 18 May 2026
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ust.is
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Hosting Provider

Advania Island ehf

IP Address

82.221.64.168

Site Location

🇮🇸 Icelandvia tld

Server Location

🇮🇸 Reykjavik, Iceland

ASN

AS44515

Organization

Advania Island ehf

Nameservers

dell.netvistun.is.dell2.netvistun.is.

Performance

78

Core Web Vitals

Weight

First Contentful Paint
2.5 s10%
Speed Index
3.2 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
22.9 MB
57 requests

Image Optimization

Responsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
Advania Island ehf

Technology Stack

10 Technologies Detected

Analytics

4
Google Analytics
Google Analytics 4
Facebook PixelCrazy Egg

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

Social

1
ShareThis

SEO Analysis

C66/100
18
7
0
Meta Tags7/15
Content10/12
Headings8/8
Technical17/25
E-E-A-T0/7
Images4/7
Links5/5
URL5/5
Social3/5
Freshness0/4
Mobile4/4
Indexability3/3
U
ust.isust.is

Umhverfisstofnun | Forsíða

Umhverfisstofnun starfar að verndun umhverfis með tilliti til náttúru og hollustuhátta

Title Length26 chars

Recommended: 50-60 chars (~159px / 580px)

Description Length86 chars

Recommended: 120-160 chars

Issues (0)

    7 issues found

    Upgrade to view details

    Crawlability

    Sitemap
    robots.txt

    3 rules

    Local SEO

    Local Search Readiness

    5/100
    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

    F32/100
    Bot Access
    20/25
    Machine Read.
    2/25
    Schema Data
    0/25
    Citation
    10/25

    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:10%
    Words:6,446
    Token eff.:Excessive

    Structured Data

    No Schema

    Citation Readiness

    Opening Summary
    Descriptive Headings
    Canonical URL
    Open Graph3/3
    Twitter Card0/3
    Language Tag
    Publish Date
    Author Info
    Lists
    Tables
    TL;DR / Summary
    About Page Link
    Recommendations (12)
    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
    71/100
    9
    Passed
    2
    Critical
    0
    Warnings
    Images & Alt Text
    20/20
    Checks if images have descriptive alt text for screen readers and visually impaired users.
    Semantic Structure
    8/20
    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
    4/15
    Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
    2 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.
    18/100
    F
    2.91 g
    CO₂e / view
    22.9 MB
    Page Weight
    5%
    Cleaner Than
    New Visitor
    3.32 g
    vs
    Returning (cached)
    1.66 g
    Annual (10K/mo)
    348.7 kg
    Emission Segments
    Data Center
    649 mg
    Network
    697 mg
    Device
    1.56 g
    Resource Breakdown
    JavaScript
    328.3 KB
    Images
    2.1 MB
    CSS
    20.4 MB
    Fonts
    827 B
    HTML
    121.0 KB
    Other
    75.8 KB
    Green Hosting Not Verified
    Advania Island ehf
    8 recommendations
    • •Carbon footprint recommendation preview...
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    D

    Security Score

    46%Poor
    Interactive

    HTTPS

    No WAF

    89d

    Certificate Details

    Type

    Organization Validated (OV)

    Certificate Authority

    GlobalSign nv-sa

    Key Algorithm

    RSA (2048 bit)

    Signature

    SHA-256 with RSA

    TLS Version

    TLSv1.3

    HTTP Protocol

    HTTP/1.1

    Valid From

    14.07.2025

    Valid Until

    15.08.2026

    OCSP Stapling

    Enabled

    Subject Alternative Names (2)

    www.ust.isust.is

    SHA-256 Fingerprint

    02:7A:7F:2B:BC:65:30:76:12:51:65:02:BD:9E:81:03:23:9C:96:34...

    Top Recommendations

    Security recommendation preview

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    Upgrade to view header details

    HTTP Headers

    Developer Console

    cache-control
    🔴 No Cache(public, no-cache="Set-Cookie")
    content-encoding
    📦 Gzip(gzip)
    content-type
    text/html; charset=utf-8
    date
    Mon, 18 May 2026 03:02:49 GMT
    expires
    Mon, 18 May 2026 04:02:50 GMT
    strict-transport-security
    max-age=31557600
    Good Warning Issue

    Email Infrastructure

    Microsoft 365

    Score

    50

    SPF
    DKIM
    DMARC

    MX Records (1)

    ust-is.mail.protection.outlook.com

    Domain Information

    ust.is

    Domain Age
    23y 7m

    Created

    18.10.2002

    Last Updated

    17.10.2025

    DNSSEC
    Not Enabled

    Privacy & Compliance

    Cookie Consent Banner
    Privacy Policy
    Terms of Service

    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
    65/100
    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

    Work Sans

    WCAG Partial
    72/100
    Readability
    /30
    22/30

    18px · LH 1.56

    Hierarchy
    /20
    16/20

    2x ratio · ✓ H1→H6

    WCAG
    /25
    14/25

    2.36:1 min contrast

    Performance
    /25
    20/25

    1 font · 1 req

    Heading Font

    Work Sans

    Sans36px

    Body Font

    Work Sans

    Sans18px

    Contrast Ratio

    2.36:1

    7 issues

    Reading Comfort

    ~36 CPL

    Narrow lines
    36px
    h1
    48px
    h2
    24px
    h3
    18px
    p

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

    ✅ Optimal line spacing: 1.56 ratio (ideal range 1.4–1.6).

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

    ⚠️ Partial contrast: 7 elements below WCAG AA threshold (min 2.4:1).

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

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

    GGoogle FontsFlesch 16

    Color Palette

    13 unique colors
    13.52:1 AAA Dark
    #352c2f
    Text· 9.5%
    #ffffff
    Background· 8.8%
    #40a76f
    Primary· 17.599999999999998%
    #fe6941
    Accent· 11.6%
    #9bc0d2
    Secondary· 10.1%
    #8e93ad
    Secondary· 8.6%
    #92513b
    Secondary· 7.7%
    #d5dfea
    Secondary· 6.8%

    Business & Marketing Stack

    4 Tools Detected

    Advanced

    Behavior Analytics

    3
    Google Tag ManagerFree
    Google AnalyticsFree
    Crazy EggSMB

    User behavior and product analytics

    Advertising

    1
    Facebook PixelMid-Market

    Ad platforms and retargeting pixels

    2

    Categories

    4

    Total Tools

    0

    Enterprise

    1

    Mid-Market

    Assessment: Well-developed marketing technology stack

    Sponsored

    Scripts & Styles

    22 Resources

    13
    Scripts
    9
    Styles
    6
    Async
    0
    Defer

    Top Script Sources

    local(6)connect.facebook.net(2)googletagmanager.com(2)cdn.cookiehub.eu(1)script.crazyegg.com(1)

    Website Identity

    ust.is

    [email protected]
    23 years old
    Location detected: 🇮🇸 Icelandvia tld
    📧 Microsoft 365is

    Social Profiles

    Facebook

    Sponsored

    Last analyzed: 18 May 2026 at 03:03

    Historical Analysis & Change Tracking

    ust.is Technology Stack - Built With Slick Carousel, Tailwind CSS, Font Awesome, Google Fonts, Google Analytics | StackOptic | StackOptic