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plt.org

https://plt.org· First analyzed 08 May 2026· Updated 08 May 2026
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plt.org
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Hosting Provider

IP Address

192.124.249.57

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 Menifee, United States

ASN

AS30148

Organization

Sucuri

Server

Sucuri/Cloudproxy

CDN

Sucuri

WAF

Sucuri

Nameservers

danica.ns.cloudflare.com.patryk.ns.cloudflare.com.

Performance

97

Core Web Vitals

Weight

First Contentful Paint
991 ms10%
Speed Index
1.3 s10%
Largest Contentful Paint
25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
4.9 MB
108 requests

Image Optimization

Lazy LoadResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Frontend
Styling
Bootstrap
CMS
WordPress
Infrastructure
Hosting
Sucuri
CDN
Sucuri

SEO Analysis

A83/100
24
6
0
Meta Tags14/15
Content10/12
Headings8/8
Technical22/25
E-E-A-T0/7
Images4/7
Links5/5
URL5/5
Social4/5
Freshness4/4
Mobile4/4
Indexability3/3
P
plt.orgplt.org

LEARNING IS IN OUR NATURE - Project Learning Tree

Activities and resources to engage children in learning about the environment through the lens of trees and forests. SEE PLT IN ACTION

Title Length49 chars

Recommended: 50-60 chars (~300px / 580px)

Description Length134 chars

Recommended: 120-160 chars

Issues (0)

    Local SEO

    Local Search Readiness

    20/100
    Needs Work
    6 10 1

    Sponsored

    AI & LLM Readiness

    D52/100
    Bot Access
    20/25
    Machine Read.
    13/25
    Schema Data
    4/25
    Citation
    15/25

    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:4%
    Words:633
    Token eff.:Optimal
    Sections/1K:23.7
    Depth:2/5

    Structured Data

    3 JSON-LD
    WebSiteBreadcrumbListSearchAction

    Citation Readiness

    Opening Summary19w
    Descriptive Headingsavg 3.6w
    Canonical URL
    Open Graph2/3
    Twitter Card1/3
    Language Tag
    Publish Date
    Author Info
    Lists
    Tables
    TL;DR / Summary
    About Page Link
    Recommendations (9)
    AI readiness recommendation preview...

    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
    1
    Critical
    0
    Warnings
    Images & Alt Text
    15/20
    Checks if images have descriptive alt text for screen readers and visually impaired users.
    Semantic Structure
    20/20
    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
    15/15
    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.
    1 recommendation
    • Accessibility recommendation preview...

    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.
    20/100
    F
    620 mg
    CO₂e / view
    4.9 MB
    Page Weight
    15%
    Cleaner Than
    New Visitor
    709 mg
    vs
    Returning (cached)
    354 mg
    Annual (10K/mo)
    74.4 kg
    Emission Segments
    Data Center
    138 mg
    Network
    149 mg
    Device
    333 mg
    Resource Breakdown
    JavaScript
    248.1 KB
    Images
    1.1 MB
    CSS
    3.5 MB
    Fonts
    2.1 KB
    HTML
    18.5 KB
    Other
    300 B
    Green Hosting Not Verified
    Sucuri
    7 recommendations
    • Carbon footprint recommendation preview...
    C

    Security Score

    66%Fair
    Interactive

    HTTPS

    WAF

    161d

    Certificate Details

    Type

    Domain Validated (DV)

    Certificate Authority

    Starfield Technologies, Inc.

    Key Algorithm

    RSA (2048 bit)

    Signature

    SHA-256 with RSA

    TLS Version

    TLSv1.3

    HTTP Protocol

    HTTP/2+H3

    Valid From

    16.09.2025

    Valid Until

    16.10.2026

    OCSP Stapling

    Enabled

    Subject Alternative Names (2)

    plt.orgwww.plt.org

    SHA-256 Fingerprint

    06:CB:34:1F:13:69:DC:6B:31:90:F1:67:F4:6B:1C:2E:DA:48:8A:52...

    Top Recommendations

    Security recommendation preview

    HTTP Headers

    Developer Console

    alt-svc
    h3=":443"; ma=2592000, h3-29=":443"; ma=2592000
    cache-control
    🟡 600s(max-age=600, must-revalidate)
    cf-edge-cache
    cache,platform=wordpress
    content-encoding
    Brotli(br)
    content-security-policy
    upgrade-insecure-requests;
    content-type
    text/html; charset=UTF-8
    Good Warning Issue

    Email Infrastructure

    Microsoft 365

    Score

    50

    SPF
    DKIM
    DMARC

    MX Records (1)

    plt-org.mail.protection.outlook.com

    Domain Information

    plt.org

    Domain Age
    30y 1m

    Created

    15.04.1996

    Expires

    16.04.2029

    Last Updated

    20.02.2026

    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.
    B
    75/100
    Mobile Friendly6 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
    2 recommendations
    • Mobile compatibility recommendation preview...

    Typography & Readability

    Oswald + Open Sans

    WCAG Partial
    74/100
    Readability
    /30
    27/30

    18px · LH 1.50

    Hierarchy
    /20
    18/20

    2.78x ratio · ✓ H1→H6

    WCAG
    /25
    16/25

    1.42:1 min contrast

    Performance
    /25
    13/25

    2 fonts · 1 req

    Heading Font

    Oswald

    Display50px

    Body Font

    Open Sans

    Sans18px

    Contrast Ratio

    1.42:1

    16 issues

    Reading Comfort

    ~36 CPL

    Narrow lines
    50px
    h1
    36px
    h2
    24px
    h3
    18px
    p

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

    ✅ Optimal line spacing: 1.50 ratio (ideal range 1.4–1.6).

    ⚠️ Partial contrast: 16 elements below WCAG AA threshold (min 1.4:1).

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

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

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

    Color Palette

    13 unique colors
    17.74:1 AAA Light
    #ffffff
    Background· 26.299999999999997%
    #161915
    Secondary· 6.8%
    #4e2d8a
    Primary· 8.5%
    #859477
    Secondary· 7.7%
    #d0d7c9
    Border· 7.4%
    #cebda3
    Secondary· 7.3%
    #a88d87
    Secondary· 7.3%
    #2b403b
    Secondary· 6%

    Business & Marketing Stack

    7 Tools Detected

    Enterprise

    Marketing Automation

    1

    Email marketing and automation platforms

    Behavior Analytics

    3

    User behavior and product analytics

    Advertising

    2

    Ad platforms and retargeting pixels

    Social Media

    1

    Social widgets and sharing tools

    4

    Categories

    7

    Total Tools

    1

    Enterprise

    1

    Mid-Market

    Assessment: Sophisticated marketing and sales technology infrastructure

    Sponsored

    Scripts & Styles

    30 Resources

    20
    Scripts
    10
    Styles
    16
    Async
    0
    Defer

    Top Script Sources

    bat.bing.com(3)googletagmanager.com(3)clarity.ms(2)youtube.com(2)connect.facebook.net(2)

    Website Identity

    LEARNING IS IN OUR NATURE - Project Learning Tree

    Environmental education, forest literacy, green jobs

    Location detected: 🇺🇸 United Statesvia ip
    Network Solutions, LLC📧 Microsoft 365en-US

    Sponsored

    Last analyzed: 08 May 2026 at 06:04

    Historical Analysis & Change Tracking