principia-scientific.com

https://principia-scientific.com· First analyzed 04 May 2026· Updated 04 May 2026

Export

Mobile

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Hosting Provider

Cloudflare

cloudflare.com

IP Address

188.114.96.3

Site Location

🇨🇦 Canadavia ip

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

CloudFlare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

damian.ns.cloudflare.com.may.ns.cloudflare.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint

498 ms10%

Speed Index

647 ms10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

725 KB

71 requests

Image Optimization

Lazy LoadResponsiveJetpack Photon (WordPress)

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

WordPressv6.9.4

cms

Eatv1.0.8Custom

by YOOtheme

View Theme

Progressive Web App

Service WorkerApple Touch Icon

Technology Stack

11 Technologies Detected

Plugins

Better Recent Comments Cleantalk Spam Protect Easy Social Share Buttons3 Recent Posts Widget With Thumbnails Onesignal Free Web Push Notifications

Bluehost Wordpress Plugin

Libraries

CSS Frameworks

Payments

CDN

SEO Analysis

B74/100

Meta Tags9/15

Content11/12

Headings3/8

Technical23/25

E-E-A-T5/7

Images3/7

Links2/5

URL5/5

Social5/5

Freshness2/4

Mobile3/4

Indexability3/3

principia-scientific.comprincipia-scientific.com

Principia Scientific Intl.

Principia Scientific International is a community resource for scientific inquiry, emphasizing transparency, truth, and the scientific method.

Title Length26 chars

Recommended: 50-60 chars (~141px / 580px)

Description Length142 chars

Recommended: 120-160 chars

Issues (1)

• Most images missing alt text (21/24) — critical for accessibility and SEO

9 issues found

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Crawlability

Sitemap

Type: index

26 URLs

26 sub-sitemaps

robots.txt

5 rules

Sitemap reference found

Local SEO

Local Search Readiness

18/100

Poor

5 12

This site doesn't appear to be a local business. Local SEO signals are optional for non-local websites.

Sponsored

AI & LLM Readiness

D54/100

Bot Access

20/25

Machine Read.

14/25

Schema Data

7/25

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.txtinvalid

llms-full.txt

Semantic HTML

Heading Hierarchy

nav

Text ratio:10%

Words:1,696

Token eff.:Optimal

Sections/1K:2.4

Depth:1/5

Structured Data

4 JSON-LD

Organization×1.1WebSiteBreadcrumbList

sameAs entity links

Citation Readiness

Opening Summary23w

Descriptive Headingsavg 2.8w

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...

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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.

68/100

Passed

Critical

Warnings

Images & Alt Text

18/20

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

5/15

Verifies form fields have labels, error messages are clear, and inputs are properly associated.

Color & Contrast

14/15

Tests text-to-background color contrast ratios against WCAG AA/AAA minimum requirements.

Keyboard & Focus

11/15

Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).

ARIA & Roles

5/15

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.

68/100

73 mg

CO₂e / view

725.2 KB

Page Weight

80%

Cleaner Than

New Visitor

84 mg

Returning (cached)

42 mg

Annual (10K/mo)

8.8 kg

Emission Segments

Data Center

4 mg

Network

22 mg

Device

48 mg

Resource Breakdown

JavaScript

272.4 KB

Images

297.1 KB

CSS

133.8 KB

HTML

21.9 KB

Green Hosting Verified

Cloudflare

GWF Verified

3 recommendations

•Carbon footprint recommendation preview...

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Security Score

0%Critical

Critical / Transactional

HTTPS

WAF

86d

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

01.05.2026

Valid Until

30.07.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

principia-scientific.com*.principia-scientific.com

SHA-256 Fingerprint

B5:56:1A:EF:CF:BE:91:C1:C7:42:E8:3E:8C:9B:CC:9D:A8:9B:3C:7D...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

alt-svc

h3=":443"; ma=86400

cache-control

🟡 6 Hours(max-age=21600, max-age=28800)

cf-cache-status

DYNAMIC

cf-ray🇮🇹 Milan

9f6938dfaa051569-MXP

content-encoding

zstd

content-type

text/html; charset=UTF-8

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

MX Records (1)

_dc-mx.62b649d1405a.principia-scientific.com

Domain Information

principia-scientific.com

Domain Age

6y 10m

Created

20.06.2019

Expires

20.06.2026

Last Updated

21.05.2025

Registrar

NameCheap, Inc.

DNSSEC

Not Enabled

Privacy & Compliance

Cookiebot

Cookie Consent Banner

Cookiebot

GDPR Indicators

Cookie consent banner detected

CMP: Cookiebot

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.

84/100

Mobile Friendly3 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

1 recommendation

•Mobile compatibility recommendation preview...

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Typography & Readability

Noto Serif + PT Sans

WCAG Partial

62/100

Readability

/30

23/30

17px · LH 1.77

Hierarchy

/20

11/20

1.85x ratio

WCAG

/25

17/25

2.69:1 min contrast

Performance

/25

11/25

2 fonts · 5 req

Heading Font

Noto Serif

Serif32px

Body Font

PT Sans

Sans17px

Contrast Ratio

2.69:1

18 issues

Reading Comfort

~34 CPL

Narrow lines

32px

23px

17px

✅ Excellent readability: 17px body text is ideal for all devices.

⚠️ Hard to read: Flesch score 34/100. Simplify sentences for wider reach.

⚠️ Partial contrast: 18 elements below WCAG AA threshold (min 2.7:1).

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

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

⚠️ Missing font-display: swap — users may see invisible text while fonts load (FOIT).

Buy on MyFontsFlesch 34

Color Palette

5 unique colors

14.31:1 AAA Light

#ffffff

Background· 77.50000000000001%

#2b2a2a

Other· 8.7%

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Privacy & Cookies

CookiebotMid-Market

Cookie consent and privacy compliance tools

Sponsored

Scripts & Styles

30 Resources

Scripts

Styles

Async

Defer

Top Script Sources

resources.infolinks.com(4)rt3055.infolinks.com(4)fd.cleantalk.org(2)c0.wp.com(2)principia-scientific.com(2)

Website Identity

Principia Scientific International

Organization

We are a community-based resource for scientific inquiry, emphasizing transparency, truth, and the scientific method.

principia-scientific.com/

6 years old

Location detected: 🇨🇦 Canadavia ip

NameCheap, Inc.en-US

Social Profiles

Facebook X (Twitter)LinkedIn

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Last analyzed: 04 May 2026 at 17:28

Historical Analysis & Change Tracking