stevespanglerscience.com

https://stevespanglerscience.com· First analyzed 01 May 2026· Updated 01 May 2026

Export

Mobile

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Hosting Provider

Cloudflare

cloudflare.com

IP Address

188.114.97.3

Site Location

🇺🇸 United Statesvia phone

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

CloudFlare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

dan.ns.cloudflare.com.lisa.ns.cloudflare.com.

Performance

Core Web Vitals

Weight

First Contentful Paint

1.2 s10%

Speed Index

1.5 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

6.1 MB

250 requests

Image Optimization

Lazy LoadResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

WordPressv6.5

cms

Enfoldv5.7Custom

by Kriesi

View Theme

Technology Stack

36 Technologies Detected

Plugins

WooCommerce

Woocommerce Products Filter

Sharpspring Woocommerce

Sss Connector Woocommerce

Woocommerce Wishlists

Woocommerce Variation Swatches And Photos

Yith Woocommerce Product Bundles Premium

Woocommerce Gateway Authorize Net Cim

Woo Discount Rules Pro

WooCommerce

Woocommerce Google Adwords Conversion Tracking Tag

Woocommerce Anti Fraud

Hustle Woo Discount Rules

Duracelltomi Google Tag Manager

Mailchimp For Woocommerce

Analytics

Microsoft Clarity Segment

Libraries

jQueryv3.7.1

Underscore.js

Other

GSAP Lottie

Advertising

TikTok Pixel Microsoft Advertising

Other

UI Components

CSS Frameworks

Fonts

Tag Managers

Email Marketing

CDN

SEO Analysis

B78/100

Meta Tags15/15

Content10/12

Headings3/8

Technical21/25

E-E-A-T2/7

Images2/7

Links5/5

URL5/5

Social4/5

Freshness4/4

Mobile4/4

Indexability3/3

stevespanglerscience.comstevespanglerscience.com

Science Kits & Science Toys | Steve Spangler Science

Steve Spangler Science kits make learning & teaching science easy. Explore our science toys for a fun science experiment at home or in the classroom.

Title Length52 chars

Recommended: 50-60 chars (~309px / 580px)

Description Length149 chars

Recommended: 120-160 chars

Issues (2)

• Missing H1 tag — every page should have exactly one H1
• Most images missing alt text (36/39) — critical for accessibility and SEO

8 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

19 URLs

19 sub-sitemaps

robots.txt

50 rules

Sitemap reference found

Allows all crawlers

Local SEO

Local Search Readiness

25/100

Needs Work

7 11

Sponsored

AI & LLM Readiness

D43/100

Bot Access

15/25

Machine Read.

9/25

Schema Data

7/25

Citation

12/25

AI Bot Access

6/14 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

Text ratio:2%

Words:774

Token eff.:Optimal

Structured Data

3 JSON-LD

Organization×1.1WebSiteSearchAction

sameAs entity links

Citation Readiness

Opening Summary10w

Descriptive Headingsavg 4w

Canonical URL

Open Graph3/3

Twitter Card1/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (10)

AI readiness recommendation preview...

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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.

73/100

Passed

Critical

Warnings

Images & Alt Text

15/20

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

Semantic Structure

13/20

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

9/15

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

ARIA & Roles

6/15

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

3 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.

26/100

630 mg

CO₂e / view

6.1 MB

Page Weight

Cleaner Than

New Visitor

721 mg

Returning (cached)

360 mg

Annual (10K/mo)

75.6 kg

Emission Segments

Data Center

31 mg

Network

185 mg

Device

414 mg

Resource Breakdown

JavaScript

854.8 KB

Images

3.9 MB

CSS

1.3 MB

Fonts

9.1 KB

HTML

34.1 KB

Green Hosting Verified

Cloudflare

GWF Verified

9 recommendations

•Carbon footprint recommendation preview...

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Security Score

71%Good

Static / Informational

HTTPS

WAF

78d

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)

stevespanglerscience.com*.stevespanglerscience.com

SHA-256 Fingerprint

35:B0:D7:33:D1:0C:35:22:1F:D5:9A:23:FC:48:88:39:1B:05:38:3D...

Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

alt-svc

h3=":443"; ma=86400

cf-cache-status

DYNAMIC

cf-ray🇮🇹 Milan

9f4ea5dbbd73ed49-MXP

content-encoding

zstd

content-type

text/html

date

Fri, 01 May 2026 12:04:18 GMT

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (2)

mxa-001e9a01.gslb.pphosted.com

mxb-001e9a01.gslb.pphosted.com

Domain Information

stevespanglerscience.com

Domain Age

24y 7m

Created

26.09.2001

Expires

26.09.2026

Last Updated

30.10.2025

Registrar

Cloudflare, Inc.

DNSSEC

Not Enabled

Privacy & Compliance

Cookiebot

Cookie Consent Banner

Cookiebot

GDPR Indicators

Cookie consent banner detected

CMP: Cookiebot

Data Protection Officer mentioned

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.

63/100

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, maximum-scale=1

3 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

Helvetica

WCAG Partial

66/100

Readability

/30

22/30

16px · LH 1.65

Hierarchy

/20

8/20

WCAG

/25

18/25

2.66:1 min contrast

Performance

/25

18/25

2 fonts · 5 req

Heading Font

Helvetica

Sans

Body Font

Helvetica

Sans16px

Contrast Ratio

2.66:1

6 issues

Reading Comfort

~36 CPL

Narrow lines

40px

20px

18px

16px

✅ Excellent readability: 16px body text is ideal for all devices.

⚠️ Partial contrast: 6 elements below WCAG AA threshold (min 2.7:1).

❌ Missing H1: Every page should have exactly one H1 element for SEO and accessibility.

✅ Modern fluid typography: clamp() with rem units ensures zoom accessibility (WCAG 1.4.4).

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

✅ Smart font loading: font-display: swap prevents invisible text during load (FOIT).

GGoogle Fonts Buy on MyFontsFluid Type (rem)Flesch 52

Color Palette

10 unique colors

Light

#ffffff

Background· 63.4%

#81aac6

Secondary· 9.100000000000001%

#dc8746

Accent· 5.4%

#02528d

Primary· 5.3%

#51413b

Secondary· 4%

#94d2b8

Secondary· 3.9%

#7db8a4

Secondary· 3.1%

#dabf9c

Secondary· 2.5%

Business & Marketing Stack

8 Tools Detected

Enterprise

Marketing Automation

MailchimpSMB

Email marketing and automation platforms

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

Microsoft ClarityFree

User behavior and product analytics

Advertising

Facebook PixelMid-Market

TikTok PixelMid-Market

Microsoft AdsEnterprise

Ad platforms and retargeting pixels

Social Media

Facebook SDKFree

Social widgets and sharing tools

Sponsored

Scripts & Styles

30 Resources

Scripts

Styles

Async

Defer

Top Script Sources

google-analytics.com(4)analytics.tiktok.com(3)googletagmanager.com(3)connect.facebook.net(2)assets.revlifter.io(1)

Website Identity

Steve Spangler Science

Organization

Making Science Fun

support@stevespanglerscience.com

+13037982778

www.stevespanglerscience.com/

24 years old

Location detected: 🇺🇸 United Statesvia phone

Cloudflare, Inc.en-US

Social Profiles

Facebook X (Twitter)Instagram Pinterest

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Last analyzed: 01 May 2026 at 12:04

Historical Analysis & Change Tracking