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.

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freerepublic.com

https://freerepublic.com· First analyzed 15 Feb 2026· Updated 15 Feb 2026

Export

freerepublic.com

Mobile

Sponsored

Hosting Provider

Linode (Akamai)

linode.com

IP Address

45.79.56.181

Server Location

🇺🇸 Richardson, United States

ASN

AS63949

Organization

Linode

Server

Nginx

Nameservers

ns5.linode.com.ns3.linode.com.ns2.linode.com.ns1.linode.com.+1 more

Performance

Page Speed

12 KB

2 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Blogger

Technology Stack

3 Technologies Detected

Frameworks

Angular

Payments

PayPal

Web Servers

Nginxv1.18.0

SEO Analysis

F35/100

freerepublic.comfreerepublic.com

Latest Articles

No description available for this page.

Title Length15 chars

Recommended: 50-60 chars

Description Length0 chars

Recommended: 120-160 chars

Issues (2)

• Missing meta description - important for click-through rates
• Missing viewport meta tag - page may not be mobile-friendly

7 issues found

Upgrade to view details

Crawlability

Sitemap

robots.txt

5 rules

Sponsored

Security Score

0%Critical

Critical / Transactional

HTTPS

No WAF

280d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Sectigo Limited

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.2

HTTP Protocol

HTTP/1.1

Valid From

22.10.2025

Valid Until

22.11.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

freerepublic.comwww.freerepublic.com

SHA-256 Fingerprint

66:06:4D:85:1E:77:8A:57:71:8A:B1:C7:E6:B1:10:E0:20:3B:C5:5F...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

cache-control

🟣 Private(private)

connection

keep-alive

content-encoding

📦 Gzip(gzip)

content-length

13739

content-type

text/html; charset=utf-8

date

Sun, 15 Feb 2026 07:09:08 GMT

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

MX Records (1)

mail.freerepublic.com

Domain Information

freerepublic.com

Domain Age

29y 5m

Created

23.09.1996

Expires

22.09.2030

Last Updated

21.09.2025

Registrar

GKG.Net, Inc.

DNSSEC

Not Enabled

Typography & Readability

Arial + Times New Roman

57/100

Readability

/30

12/40

13px · LH 1.30

Hierarchy

/20

15/25

1.23x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

20/20

System fonts

Heading Font

Arial

Sans16px

Body Font

Times New Roman

Serif13px

Contrast Ratio

Reading Comfort

~31 CPL

Needs attention

16px

13px

❌ Critical: 13px body text is too small. Increase to at least 14px.

⚠️ Weak hierarchy: Headlines should be at least 2x body size for clear visual structure.

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

⚠️ Cramped layout: 7 elements lack adequate spacing.

✅ Clean layout: Consistent left alignment throughout.

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

2 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(1)

Sponsored

Last analyzed: 15 Feb 2026 at 07:09

Historical Analysis & Change Tracking