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nasonline.org

https://nasonline.org· First analyzed 25 Apr 2026· Updated 25 Apr 2026
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nasonline.org
Desktop screenshot of nasonline.org
Mobile screenshot of nasonline.org
Mobile

Sponsored

Hosting Provider

Kinsta
cloudflare.com

IP Address

162.159.134.42

Site Location

🇨🇦 Canadavia ip

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

ns78.worldnic.com.ns77.worldnic.com.

Performance

98

Core Web Vitals

Weight

First Contentful Paint
929 ms10%
Speed Index
1.2 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
2.5 MB
61 requests

Image Optimization

Lazy LoadWebPResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
WordPress
cms
NAS Website by Yoko Cov1.0Custom
by Yoko Co
View Theme

Technology Stack

20 Technologies Detected

Plugins

10
Beaver Builder
Yoko CorePda MultisiteYok0X SsoPerfmatters
Gravity Forms
GravityformsrecaptchaFacetwp
Gravity Forms
Beaver Builder

Analytics

3
Google Analytics
Google Analytics 4
Hotjar

Libraries

1
jQueryv3.7.1

CSS Frameworks

1
Tailwind CSS

Icon Libraries

1
Font Awesome

Fonts

1
Google Fonts

Tag Managers

1
Google Tag Manager

CDN

1
Cloudflare

Security

1
reCAPTCHA

SEO Analysis

A85/100
27
5
0
Meta Tags9/15
Content10/12
Headings8/8
Technical23/25
E-E-A-T3/7
Images7/7
Links5/5
URL5/5
Social5/5
Freshness4/4
Mobile3/4
Indexability3/3
N
nasonline.orgnasonline.org

National Academy of Sciences

The National Academy of Sciences (NAS) is a private, nonprofit organization of the country’s leading researchers, recognizing and promoting outstanding science.

Title Length28 chars

Recommended: 50-60 chars (~169px / 580px)

Description Length160 chars

Recommended: 120-160 chars

Issues (0)

    5 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: index

    15 URLs

    15 sub-sitemaps

    robots.txt

    6 rules

    Sitemap reference found

    Local SEO

    Local Search Readiness

    28/100
    Needs Work
    7 12 2

    Sponsored

    AI & LLM Readiness

    C61/100
    Bot Access
    20/25
    Machine Read.
    13/25
    Schema Data
    11/25
    Citation
    17/25

    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:4%
    Words:1,016
    Token eff.:Optimal
    Sections/1K:4.9
    Depth:1/5

    Structured Data

    4 JSON-LD
    Article×1.2Person×1.3microdataOrganization×1.1microdataWebSiteLocalBusiness×1.1(min)Event(min)

    Citation Readiness

    Opening Summary49w
    Descriptive Headingsavg 3.4w
    Canonical URL
    Open Graph3/3
    Twitter Card3/3
    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.
    A
    84/100
    14
    Passed
    2
    Critical
    1
    Warnings
    Images & Alt Text
    20/20
    Checks if images have descriptive alt text for screen readers and visually impaired users.
    Semantic Structure
    17/20
    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
    15/15
    Tests text-to-background color contrast ratios against WCAG AA/AAA minimum requirements.
    Keyboard & Focus
    15/15
    Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
    ARIA & Roles
    7/15
    Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
    1 recommendation
    • •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.
    53/100
    D
    254 mg
    CO₂e / view
    2.5 MB
    Page Weight
    30%
    Cleaner Than
    New Visitor
    290 mg
    vs
    Returning (cached)
    145 mg
    Annual (10K/mo)
    30.4 kg
    Emission Segments
    Data Center
    12 mg
    Network
    75 mg
    Device
    167 mg
    Resource Breakdown
    JavaScript
    101.8 KB
    Images
    1.6 MB
    CSS
    622.0 KB
    Fonts
    166.0 KB
    HTML
    22.5 KB
    Green Hosting Verified
    Something Familiar
    GWF Verified
    7 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    B

    Security Score

    71%Good
    Interactive

    HTTPS

    WAF

    75d

    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

    11.04.2026

    Valid Until

    10.07.2026

    OCSP Stapling

    Enabled

    Subject Alternative Names (2)

    nasonline.org*.nasonline.org

    SHA-256 Fingerprint

    1B:5E:B8:99:6B:DA:39:C3:B6:4B:D2:61:01:2F:B7:90:54:F5:2D:31...

    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
    9f1ceea18aff3dc6-MXP
    content-encoding
    ⚡ Brotli(br)
    content-security-policy
    frame-ancestors 'self';
    content-type
    text/html; charset=UTF-8
    Good Warning Issue

    Email Infrastructure

    Custom Mail Server

    Score

    20

    SPF
    DKIM
    DMARC

    DMARC Policy

    None (Monitor Only)

    Domain Information

    nasonline.org

    Domain Age
    21y 10m

    Created

    07.06.2004

    Expires

    07.06.2030

    Last Updated

    13.04.2025

    Registrar

    Network Solutions, LLC

    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.
    A
    82/100
    Mobile Friendly4 breakpoints
    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=1.0
    1 recommendation
    • •Mobile compatibility recommendation preview...
    Upgrade to view recommendations

    Typography & Readability

    Jost + DM Sans

    WCAG Partial
    66/100
    Readability
    /30
    23/30

    18px · LH 1.60

    Hierarchy
    /20
    13/20

    1.78x ratio · ✓ H1→H6

    WCAG
    /25
    17/25

    2.82:1 min contrast

    Performance
    /25
    13/25

    2 fonts · 4 req

    Heading Font

    Jost

    Sans32px

    Body Font

    DM Sans

    Sans18px

    Contrast Ratio

    2.82:1

    11 issues

    Reading Comfort

    ~38 CPL

    Narrow lines
    32px
    h1
    50px
    h2
    167px
    h3
    32px
    h4
    18px
    p
    Perfect Fourth
    Scale

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

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

    ⚠️ Hard to read: Flesch score 36/100. Simplify sentences for wider reach.

    ⚠️ Partial contrast: 11 elements below WCAG AA threshold (min 2.8:1).

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

    ✅ Lean font stack: 2 font families keeps load times fast.

    GGoogle FontsBuy on MyFontsFlesch 36

    Color Palette

    11 unique colors
    17.76:1 AAA Light
    #ffffff
    Background· 35.2%
    #181818
    Text· 16.2%
    #658632
    Primary· 8.2%
    #cccc7b
    Secondary· 6%
    #4f6a2c
    Secondary· 6%
    #a7bc5e
    Secondary· 5.4%
    #8f8658
    Secondary· 5.4%
    #97a459
    Secondary· 5.3%

    Business & Marketing Stack

    3 Tools Detected

    Growing

    Behavior Analytics

    3
    Google Tag ManagerFree
    Google AnalyticsFree
    HotjarMid-Market

    User behavior and product analytics

    1

    Categories

    3

    Total Tools

    0

    Enterprise

    1

    Mid-Market

    Assessment: Growing marketing technology adoption

    Sponsored

    Scripts & Styles

    30 Resources

    20
    Scripts
    10
    Styles
    7
    Async
    1
    Defer

    Top Script Sources

    nasonline.org(11)googletagmanager.com(2)static.hotjar.com(2)google-analytics.com(1)gstatic.com(1)

    Website Identity

    Home

    LocalBusiness

    National Academy of Sciences

    www.nasonline.org
    21 years old
    Location detected: 🇨🇦 Canadavia ip
    Network Solutions, LLCen-US

    Sponsored

    Last analyzed: 25 Apr 2026 at 11:16

    Historical Analysis & Change Tracking