greatscience.com

https://greatscience.com· First analyzed 17 May 2026· Updated 17 May 2026

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greatscience.com

Mobile

Sponsored

Hosting Provider

Pantheon

pantheon.io

IP Address

23.185.0.4

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 San Francisco, United States

ASN

AS54113

Organization

Pantheon

Server

Nginx

CDN

Fastly

Nameservers

ns57.worldnic.com.ns58.worldnic.com.

Performance

Core Web Vitals

Weight

First Contentful Paint

1.2 s10%

Speed Index

1.6 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

13 MB

128 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Drupalv7

Technology Stack

9 Technologies Detected

Analytics

UI Components

CSS Frameworks

Tag Managers

Email Marketing

Advertising

Web Servers

SEO Analysis

C64/100

Meta Tags9/15

Content10/12

Headings3/8

Technical19/25

E-E-A-T0/7

Images2/7

Links5/5

URL5/5

Social5/5

Freshness0/4

Mobile3/4

Indexability3/3

greatscience.comgreatscience.com

Great Lakes Science Center | A community where all people value sci...

A community where all people value science, technology, engineering, and math to inform decision-making and enrich lives.

Title truncated.

Title Length150 chars

Recommended: 50-60 chars (~901px / 580px)

Description Length121 chars

Recommended: 120-160 chars

Issues (2)

• Title is too long (150 chars, ~901px). Will be truncated in search results.
• Missing H1 tag — every page should have exactly one H1

9 issues found

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Crawlability

Sitemap

Type: standard

332 URLs

robots.txt

70 rules

Local SEO

Local Search Readiness

15/100

Poor

5 11 2

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

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AI & LLM Readiness

D46/100

Bot Access

20/25

Machine Read.

10/25

Schema Data

0/25

Citation

16/25

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:5%

Words:761

Token eff.:Optimal

Sections/1K:22.3

Depth:2/5

Structured Data

No Schema

Citation Readiness

Opening Summary22w

Descriptive Headingsavg 3.6w

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.

65/100

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

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

9/15

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

ARIA & Roles

3/15

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

4 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.

13/100

1.64 g

CO₂e / view

13.0 MB

Page Weight

Cleaner Than

New Visitor

1.87 g

Returning (cached)

937 mg

Annual (10K/mo)

196.9 kg

Emission Segments

Data Center

366 mg

Network

394 mg

Device

880 mg

Resource Breakdown

JavaScript

389.2 KB

Images

11.7 MB

CSS

581.4 KB

Fonts

250.0 KB

HTML

18.6 KB

Other

2.9 KB

Green Hosting Not Verified

Pantheon

9 recommendations

•Carbon footprint recommendation preview...

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Security Score

56%Poor

Interactive

HTTPS

No WAF

73d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

30.04.2026

Valid Until

29.07.2026

Subject Alternative Names (2)

greatscience.comwww.greatscience.com

SHA-256 Fingerprint

75:A7:CD:83:1E:E0:89:D3:30:F2:4A:54:3E:43:6A:E9:88:4A:0A:2D...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

accept-ranges

bytes

age

cache-control

🔴 No Cache(no-cache, must-revalidate)

content-encoding

📦 Gzip(gzip)

content-language

content-type

text/html; charset=utf-8

Good Warning Issue

Email Infrastructure

Microsoft 365

Score

SPF

DKIM

DMARC

MX Records (2)

greatscience-com.mail.protection.outlook.com

glsc-org.mail.protection.outlook.com

Domain Information

greatscience.com

Domain Age

30y 2m

Created

05.03.1996

Expires

06.03.2028

Last Updated

05.01.2025

Registrar

Network Solutions, LLC

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Cookie consent banner detected

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.

64/100

Mobile Friendly12 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, maximum-scale=1

3 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

montserrat_bold + raleway_regular

WCAG Partial

46/100

Readability

/30

20/30

12px · LH 1.50

Hierarchy

/20

6/20

WCAG

/25

15/25

1.03:1 min contrast

Performance

/25

5/25

3 fonts · 10 req

Heading Font

montserrat_bold

Sans

Body Font

raleway_regular

Sans12px

Contrast Ratio

1.03:1

16 issues

Reading Comfort

~49 CPL

Optimal (45–75)

42px

35px

12px

❌ Critical: 12px body text is too small. Minimum 14px, recommend 16px+.

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

✅ Optimal line length: ~49 chars/line (ideal 45–75 CPL).

⚠️ Hard to read: Flesch score 50/100. Simplify sentences for wider reach.

⚠️ Partial contrast: 16 elements below WCAG AA threshold (min 1.0:1).

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

Buy on MyFontsFlesch 50

Color Palette

5 unique colors

Dark

#1a1a19

Text· 48%

#004580

Primary· 25.100000000000005%

#36709b

Secondary· 4.2%

#0f2d4a

Accent· 0.4%

Business & Marketing Stack

5 Tools Detected

Enterprise

Marketing Automation

MailchimpSMB

Email marketing and automation platforms

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Advertising

Facebook PixelMid-Market

Ad platforms and retargeting pixels

Social Media

Facebook SDKFree

Social widgets and sharing tools

Sponsored

Scripts & Styles

25 Resources

Scripts

Styles

Async

Defer

Top Script Sources

googletagmanager.com(7)connect.facebook.net(7)local(2)collector-55284.us.tvsquared.com(1)widgets.getsitecontrol.com(1)

Website Identity

greatscience.com

30 years old

Location detected: 🇺🇸 United Statesvia ip

Network Solutions, LLC📧 Microsoft 365en

Social Profiles

Facebook X (Twitter)Instagram LinkedIn YouTube Pinterest

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Last analyzed: 17 May 2026 at 11:23

Historical Analysis & Change Tracking