sci-ed.org

https://sci-ed.org· First analyzed 02 May 2026· Updated 02 May 2026

Export

sci-ed.org

Mobile

Sponsored

Hosting Provider

Cloudflare

cloudflare.com

IP Address

172.67.153.175

Site Location

🇨🇦 Canadavia ip

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

mimi.ns.cloudflare.com.newt.ns.cloudflare.com.

Performance

Core Web Vitals

Weight

First Contentful Paint

859 ms10%

Speed Index

1.1 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

238 KB

25 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

WordPressv4.8

cms

nevertheless

Technology Stack

8 Technologies Detected

Plugins

Html5 Search Box For Wordpress

Simple Html Slider Sticky Menu Or Anything On Scroll Page Links To

Libraries

CSS Frameworks

Fonts

CDN

SEO Analysis

D44/100

Meta Tags4/15

Content7/12

Headings0/8

Technical13/21

E-E-A-T0/7

Images4/7

Links4/5

URL5/5

Social0/5

Freshness0/4

Mobile4/4

Indexability3/3

sci-ed.orgsci-ed.org

Contextual Science Teaching

No description available for this page.

Title Length27 chars

Recommended: 50-60 chars (~160px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (2)

• Missing meta description — important for click-through rates in SERPs
• Missing H1 tag — every page should have exactly one H1

9 issues found

Upgrade to view details

Local SEO

Local Search Readiness

3/100

Poor

1 14 2

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

Sponsored

AI & LLM Readiness

F33/100

Bot Access

20/25

Machine Read.

5/25

Schema Data

0/25

Citation

8/25

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

blockquotesnavheader/footer

Text ratio:7%

Words:143

Token eff.:Too Short

Depth:3/5

Structured Data

No Schema

Citation Readiness

Opening Summary60w

Descriptive Headings

Canonical URL

Open Graph0/3

Twitter Card0/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (9)

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.

76/100

Passed

Critical

Warnings

Images & Alt Text

20/20

Checks if images have descriptive alt text for screen readers and visually impaired users.

Semantic Structure

12/20

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

4/15

Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.

2 recommendations

•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.

64/100

A+

24 mg

CO₂e / view

237.6 KB

Page Weight

95%

Cleaner Than

New Visitor

27 mg

Returning (cached)

14 mg

Annual (10K/mo)

2.9 kg

Emission Segments

Data Center

1 mg

Network

7 mg

Device

16 mg

Resource Breakdown

JavaScript

45.7 KB

Images

140.2 KB

CSS

44.0 KB

Fonts

2.8 KB

HTML

4.9 KB

Green Hosting Verified

Cloudflare

GWF Verified

4 recommendations

•Carbon footprint recommendation preview...

Upgrade to view recommendations

Security Score

26%Critical

Interactive

HTTPS

WAF

76d

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

19.04.2026

Valid Until

18.07.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

sci-ed.org*.sci-ed.org

SHA-256 Fingerprint

84:50:2C:50:CB:44:8F:F1:D9:6C:CE:23:AC:74:76:37:B5:A3:BC:11...

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

9f56484c293c0e2b-MXP

content-encoding

zstd

content-type

text/html; charset=UTF-8

date

Sat, 02 May 2026 10:18:32 GMT

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

Domain Information

sci-ed.org

Domain Age

19 years

Created

18.04.2007

Expires

18.04.2028

Last Updated

13.04.2026

Registrar

URL Solutions, Inc.

DNSSEC

Not Enabled

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.

70/100

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

1 recommendation

•Mobile compatibility recommendation preview...

Upgrade to view recommendations

Typography & Readability

Rosario

WCAG Partial

58/100

Readability

/30

20/30

15px · LH 1.50

Hierarchy

/20

9/20

WCAG

/25

16/25

1.63:1 min contrast

Performance

/25

13/25

2 fonts · 2 req

Heading Font

Rosario

Body Font

Rosario

Sans15px

Contrast Ratio

1.63:1

1 issue

Reading Comfort

~35 CPL

Narrow lines

15px

⚠️ Small text: 15px may strain on mobile. Use ≥16px for WCAG compliance.

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

⚠️ Hard to read: Flesch score 39/100. Simplify sentences for wider reach.

⚠️ Partial contrast: 1 elements below WCAG AA threshold (min 1.6:1).

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

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

GGoogle Fonts Buy on MyFontsFlesch 39

Color Palette

9 unique colors

16.46:1 AAA Light

#ffffff

Background· 30.3%

#1e1f23

Secondary· 7.1%

#4b5560

Secondary· 15.499999999999998%

#456782

Primary· 15.299999999999999%

#94aabf

Secondary· 11.8%

#667683

Secondary· 6.1%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

19 Resources

Scripts

Styles

Async

Defer

Top Script Sources

sci-ed.org(9)local(2)secure.(1)

Website Identity

sci-ed.org

19 years old

Location detected: 🇨🇦 Canadavia ip

URL Solutions, Inc.en-US

Sponsored

Last analyzed: 02 May 2026 at 10:18

Historical Analysis & Change Tracking