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

heritage.org

https://heritage.org· First analyzed 12 Feb 2026· Updated 12 Feb 2026

Export

heritage.org

Mobile

Sponsored

Hosting Provider

Pantheon

cloudflare.com

IP Address

104.20.26.140

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

carter.ns.cloudflare.com.yolanda.ns.cloudflare.com.

Performance

Page Speed

18.3 MB

219 requests

Image Optimization

Lazy Load

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Drupal

Technology Stack

13 Technologies Detected

Analytics

Libraries

UI Components

Other

CSS Frameworks

Tag Managers

Advertising

Microsoft Advertising

Other

VWO

Other

Unbounce

CDN

Cloudflare

SEO Analysis

B74/100

heritage.orgheritage.org

The Heritage Foundation

A research and educational institution whose mission is to build and promote conservative public policies, based in Washington, D.C.

Title Length23 chars

Recommended: 50-60 chars

Description Length132 chars

Recommended: 120-160 chars

Issues (1)

• Many images missing alt text (20/22)

3 issues found

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Crawlability

Sitemap

Type: index

21 URLs

robots.txt

53 rules

Sponsored

Security Score

61%Fair

Interactive

HTTPS

WAF

35d

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

Valid From

20.12.2025

Valid Until

20.03.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

heritage.org*.heritage.org

SHA-256 Fingerprint

2B:65:80:9B:94:8C:ED:8E:6D:1E:EF:B2:6C:E8:94:9D:1E:61:EB:79...

Top Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

age

3180

cache-control

🟡 3 Hours(max-age=10800, public)

cf-cache-status

DYNAMIC

cf-ray🇩🇪 Frankfurt

9ccf49928b87bced-FRA

content-encoding

⚡ Brotli(br)

content-language

Good Warning Issue

Email Infrastructure

Microsoft 365

Score

SPF

DKIM

DMARC

DMARC Policy

Reject (Strictest)

MX Records (1)

heritage-org.mail.protection.outlook.com

Domain Information

heritage.org

Domain Age

32y 3m

Created

15.11.1993

Expires

14.11.2029

Last Updated

03.10.2024

Registrar

Network Solutions, LLC

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Cookie consent banner detected

Data Protection Officer mentioned

Typography & Readability

Gotham

35/100

Readability

/30

17/40

14px · LH 2.30

Hierarchy

/20

20/25

1.71x ratio

WCAG

/25

5/15

Contrast: undefined

Performance

/25

13/20

1 font

Heading Font

Gotham

Sans24px

Body Font

Gotham

Sans14px

Contrast Ratio

Reading Comfort

~86 CPL

Needs attention

24px

20px

15px

14px

⚠️ Small text: 14px may be hard to read on mobile. Consider 16px+.

⚠️ Wide line spacing (2.30). Consider 1.4-1.8 for better flow.

✅ Good hierarchy: Clear distinction between headlines and body text.

✅ Good performance: Using 1 font families keeps load times fast.

✅ Consistent design: Single font family with weight variations is a modern best practice.

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

Buy on MyFonts

Business & Marketing Stack

7 Tools Detected

Enterprise

Marketing Automation

MarketoEnterprise

Email marketing and automation platforms

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Advertising

Facebook PixelMid-Market

Microsoft AdsEnterprise

Ad platforms and retargeting pixels

A/B Testing & Optimization

VWO (Visual Website Optimizer)Mid-Market

OptimizelyEnterprise

Experimentation and conversion optimization

Sponsored

Scripts & Styles

29 Resources

Scripts

Styles

Async

Defer

Top Script Sources

googletagmanager.com(7)connect.facebook.net(5)youtube.com(1)bttrack.com(1)tags.srv.stackadapt.com(1)

Website Identity

heritage.org

32 years old

Network Solutions, LLC📧 Microsoft 365

Social Profiles

Facebook X (Twitter)Instagram LinkedIn YouTube

Sponsored

Last analyzed: 12 Feb 2026 at 21:48

Historical Analysis & Change Tracking