selfdeterminationtheory.org

https://selfdeterminationtheory.org· First analyzed 28 Apr 2026· Updated 28 Apr 2026

Export

Mobile

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Hosting Provider

WP Engine

wpengine.com

IP Address

141.193.213.11

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 Austin, United States

ASN

AS209242

Organization

WPEngine, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

tani.ns.cloudflare.com.kolton.ns.cloudflare.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint

308 ms10%

Speed Index

400 ms10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

20 KB

92 requests

Image Optimization

Lazy Load

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Styling

Bootstrap

CMS

WordPressv6.9.4

Infrastructure

Hosting

WP Engine

CDN

Cloudflare

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

20 Technologies Detected

Plugins

Wp Google Search

Contact Form 7

Download Manager Wp Members

Google Analytics For Wordpress

Sdt Publications Revslider

Libraries

CSS Frameworks

Analytics

Frameworks

UI Components

Icon Libraries

Fonts

CDN

Customer Support

Security

SEO Analysis

D55/100

Meta Tags4/15

Content8/12

Headings5/8

Technical19/25

E-E-A-T0/7

Images2/7

Links5/5

URL5/5

Social0/5

Freshness0/4

Mobile4/4

Indexability3/3

selfdeterminationtheory.orgselfdeterminationtheory.org

selfdeterminationtheory.org – Page Array – An approach to human mot...

No description available for this page.

Title truncated.

Title Length88 chars

Recommended: 50-60 chars (~536px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (2)

• Title is too long (88 chars, ~536px). Will be truncated in search results.
• Missing meta description — important for click-through rates in SERPs

11 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

21 URLs

21 sub-sitemaps

robots.txt

5 rules

Sitemap reference found

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

D42/100

Bot Access

20/25

Machine Read.

11/25

Schema Data

0/25

Citation

11/25

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:2%

Words:373

Token eff.:Optimal

Sections/1K:13.4

Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary32w

Descriptive Headingsavg 2w

Canonical URL

Open Graph0/3

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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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.

79/100

Passed

Critical

Warnings

Images & Alt Text

15/20

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

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

9/15

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.

75/100

A+

2 mg

CO₂e / view

19.7 KB

Page Weight

95%

Cleaner Than

New Visitor

2 mg

Returning (cached)

1 mg

Annual (10K/mo)

240 g

Emission Segments

Data Center

<0.001 g

Network

<0.001 g

Device

1 mg

Resource Breakdown

HTML

19.7 KB

Green Hosting Verified

Feel Created

GWF Verified

3 recommendations

•Carbon footprint recommendation preview...

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Security Score

26%Critical

Interactive

HTTPS

WAF

44d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-384

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2+H3

Valid From

13.03.2026

Valid Until

11.06.2026

Subject Alternative Names (1)

selfdeterminationtheory.org

SHA-256 Fingerprint

A8:B2:FB:87:4A:9E:F8:4C:0E:91:8B:EC:B9:69:E5:3F:CC:06:34:0B...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

alt-svc

h3=":443"; ma=86400

cache-control

🟡 600s(max-age=600, must-revalidate)

cf-cache-status

DYNAMIC

cf-ray🇮🇹 Milan

9f35522b3f3eed18-MXP

content-encoding

⚡ Brotli(br)

content-type

text/html; charset=UTF-8

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (2)

mx2.zohomail.com

mx.zohomail.com

Domain Information

selfdeterminationtheory.org

Domain Age

25y 1m

Created

26.03.2001

Expires

26.03.2028

Last Updated

01.03.2024

Registrar

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

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.

71/100

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

Open Sans + Arial

WCAG Partial

68/100

Readability

/30

25/30

20px · LH 1.60

Hierarchy

/20

15/20

2.8x ratio

WCAG

/25

14/25

1.04:1 min contrast

Performance

/25

14/25

System fonts

Heading Font

Open Sans

Sans56px

Body Font

Arial

Sans20px

Contrast Ratio

1.04:1

11 issues

Reading Comfort

~38 CPL

Narrow lines

56px

36px

18px

20px

✅ Excellent readability: 20px body text is ideal for all devices.

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

❌ Very complex text: Flesch score 17/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 11 elements below WCAG AA threshold (min 1.0:1).

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

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

GGoogle Fonts Buy on MyFontsFluid Type (rem)Flesch 17

Color Palette

10 unique colors

4.39:1 AA Large Light

#ffffff

Primary· 39.300000000000004%

#717987

Secondary· 5%

#386b8c

Secondary· 15.3%

#334158

Secondary· 8.6%

#557898

Secondary· 7.5%

#525866

Secondary· 6.6%

#d9e4e2

Secondary· 5.7%

#232c3e

Primary· 4.7%

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Social Media

Facebook SDKFree

Social widgets and sharing tools

Sponsored

Scripts & Styles

30 Resources

Scripts

Styles

Async

Defer

Top Script Sources

selfdeterminationtheory.org(15)google.com(2)gstatic.com(1)googletagmanager.com(1)cdn.jsdelivr.net(1)

Website Identity

selfdeterminationtheory.org

25 years old

Location detected: 🇺🇸 United Statesvia ip

Social Profiles

Facebook X (Twitter)LinkedIn

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Last analyzed: 28 Apr 2026 at 10:18

Historical Analysis & Change Tracking