What does StackOptic analyze?

StackOptic runs 18 analysis modules on any public website from a single URL. It detects 7,000+ technologies (CMS, frameworks, analytics, payments, CDN, hosting), evaluates SSL certificates and HTTP security headers with grades from A+ to F, measures Core Web Vitals (LCP, CLS, TBT, FCP), audits SEO meta tags and structured data, checks email security (SPF, DKIM, DMARC), analyzes AI & LLM readiness including bot access and llms.txt validation, extracts color palettes and typography, estimates carbon footprint, and generates permanent shareable reports.

Does it work on sites behind Cloudflare or bot protection?

Yes. StackOptic uses a real browser engine that loads pages exactly like a human visitor — executing JavaScript, rendering CSS, and handling redirects. This allows it to bypass Cloudflare, LiteSpeed, Sucuri, and other bot protection systems where traditional crawlers and HTTP-only tools fail.

What do I get on the free plan?

The free plan includes 5 analyses per day with access to all 18 modules, full scores, technology detection, and security grades. Every report is permanently accessible via a unique shareable URL — no login required to view. No credit card needed. AI-powered insights, re-analysis, PDF/JSON export, and comparison features are available on Pro ($24/mo) and Agency ($99/mo) plans.

What is AI & LLM readiness analysis?

This module evaluates how visible and citable your website is to AI search engines like ChatGPT, Perplexity, Google AI Overviews, and Claude. It audits access permissions for 8 major AI bots, validates llms.txt and llms-full.txt files, scores citation-ready content structure, and analyzes structured data (JSON-LD) for GEO readiness — helping you rank in the next generation of search.

How long does an analysis take?

Most analyses complete in under 10 seconds. StackOptic runs all 18 modules in parallel using a real browser session, so you get technology detection, security audit, performance metrics, SEO analysis, and AI readiness scoring simultaneously.

How accurate are the results?

Detection is based on real browser execution — DOM inspection, JavaScript runtime analysis, HTTP headers, and DNS records. With 7,000+ technology signatures and Lighthouse-calibrated performance scoring, StackOptic achieves high accuracy for mainstream technologies.

What security checks are performed?

The security module evaluates SSL/TLS certificates, 12+ HTTP security headers (HSTS, CSP, X-Frame-Options, Permissions-Policy, Referrer-Policy), HTTPS enforcement, and email authentication (SPF, DKIM, DMARC). Each site receives a letter grade from A+ to F with specific remediation steps.

Do you store the websites I analyze?

StackOptic only stores publicly available information that any visitor to a website would see — HTML content, HTTP headers, DNS records, and screenshots. We do not access private data, log in to websites, or perform any intrusive testing.

Back to Search

libertyfund.org

https://libertyfund.org· First analyzed 20 Feb 2026· Updated 20 Feb 2026

Export

libertyfund.org

Sponsored

Hosting Provider

WP Engine

wpengine.com

IP Address

141.193.213.11

Server Location

🇺🇸 Austin, United States

ASN

AS209242

Organization

WPEngine, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

ns-459.awsdns-57.com.ns-602.awsdns-11.net.ns-1392.awsdns-46.org.ns-1900.awsdns-45.co.uk.

Performance

Page Speed

5.3 MB

90 requests

Image Optimization

Lazy Load

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Styling

Tailwind CSS

CMS

WordPressv6.8.3

Infrastructure

Hosting

WP Engine

CDN

Cloudflare

Technology Stack

16 Technologies Detected

Plugins

Libraries

CSS Frameworks

Other

Icon Libraries

Fonts

Analytics

Tag Managers

CDN

SEO Analysis

A+94/100

libertyfund.orglibertyfund.org

A Call to Liberty - Liberty Fund

A Call to Liberty strives to reawaken interest in and respect for the Declaration of Independence as we approach its 250th anniversary. It is a project of Li...

Description truncated.

Title Length32 chars

Recommended: 50-60 chars

Description Length274 chars

Recommended: 120-160 chars

Issues (0)

1 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

robots.txt

2 rules

Allows all crawlers

Sponsored

Security Score

26%Critical

Interactive

HTTPS

WAF

83d

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

13.02.2026

Valid Until

14.05.2026

Subject Alternative Names (1)

www.libertyfund.org

SHA-256 Fingerprint

68:58:E3:BC:FD:59:E2:BD:7B:FD:04:A0:40:A1:CD:CD:F8:C4:66:20...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

date

Fri, 20 Feb 2026 02:29:40 GMT

content-type

text/html; charset=UTF-8

content-encoding

⚡ Brotli(br)

vary

Accept-Encoding, Cookie

link

<https://www.libertyfund.org/wp-json/>; rel="https://api.w.o...

x-powered-by

WP Engine

Good Warning Issue

Email Infrastructure

Google Workspace

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (5)

alt1.aspmx.l.google.com

aspmx.l.google.com

alt3.aspmx.l.google.com

alt4.aspmx.l.google.com

+1 more

Domain Information

libertyfund.org

Domain Age

29y 9m

Created

18.05.1996

Expires

19.05.2027

Last Updated

10.02.2025

Registrar

Amazon Registrar, Inc.

DNSSEC

Not Enabled

Privacy & Compliance

Cookiebot

Cookie Consent Banner

Cookiebot

GDPR Indicators

Cookie consent banner detected

CMP: Cookiebot

Typography & Readability

IM FELL Great Primer + sans-serif

60/100

Readability

/30

32/40

20px · LH 2.00

Hierarchy

/20

21/25

3x ratio

WCAG

/25

5/15

Contrast: undefined

Performance

/25

17/20

System fonts

Heading Font

IM FELL Great Primer

Serif60px

Body Font

sans-serif

Sans20px

Contrast Ratio

Reading Comfort

~73 CPL

Optimal (45–75)

60px

34px

32px

20px

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

✅ Strong hierarchy: Headlines are 3.0x larger than body text.

✅ Excellent performance: System fonts eliminate font loading delays (better LCP).

✅ Smart font loading: Using font-display: swap prevents invisible text during load.

⚠️ Risky: Text appears on background images without overlay protection.

✅ Optimal line length: ~73 characters per line is comfortable to read.

GGoogle Fonts Buy on MyFonts

Business & Marketing Stack

3 Tools Detected

Advanced

Behavior Analytics

Google Tag ManagerFree

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

libertyfund.org(12)cdn.jsdelivr.net(3)gstatic.com(1)googletagmanager.com(1)code.jquery.com(1)

Website Identity

Facebook X (Twitter)Instagram

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Last analyzed: 20 Feb 2026 at 02:30

Historical Analysis & Change Tracking