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

opengroup.org

https://opengroup.org· First analyzed 13 Feb 2026· Updated 13 Feb 2026

Export

opengroup.org

Mobile

Sponsored

Hosting Provider

THE OPEN GROUP, L.L.C

IP Address

170.39.106.1

Server Location

🇺🇸 San Francisco, United States

ASN

AS33182

Organization

THE OPEN GROUP, L.L.C

Server

Nginx

Nameservers

ns0.opengroup.org.ns1.opengroup.org.ns2.opengroup.org.

Performance

Page Speed

2.2 MB

54 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Framework

jQuery

Styling

Bootstrap

CMS

Drupal

Infrastructure

Hosting

THE OPEN GROUP, L.L.C

Technology Stack

7 Technologies Detected

CSS Frameworks

Analytics

Libraries

Icon Libraries

Web Servers

SEO Analysis

D47/100

opengroup.orgopengroup.org

www.opengroup.org

No description available for this page.

Title Length17 chars

Recommended: 50-60 chars

Description Length0 chars

Recommended: 120-160 chars

Issues (2)

• Missing meta description - important for click-through rates
• Missing H1 tag - every page should have one H1

6 issues found

Upgrade to view details

Crawlability

Sitemap

robots.txt

45 rules

Sponsored

Security Score

61%Fair

Interactive

HTTPS

No WAF

84d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

GoDaddy.com, Inc.

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/1.1

Valid From

06.04.2025

Valid Until

08.05.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.opengroup.orgopengroup.org

SHA-256 Fingerprint

F8:C4:4A:59:2E:A5:96:98:25:59:6D:D8:8F:32:5A:C8:CC:58:8A:EF...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

cache-control

🔵 1 Days(max-age=86400, public)

connection

Keep-Alive

content-encoding

📦 Gzip(gzip)

content-security-policy

font-src 'self' cdnjs.cloudflare.com fonts.gstatic.com www.g...

content-type

text/html; charset=UTF-8

content-language

Good Warning Issue

Email Infrastructure

Rackspace Email

Score

SPF

DKIM

DMARC

MX Records (2)

mx1.emailsrvr.com

mx2.emailsrvr.com

Domain Information

opengroup.org

Domain Age

29y 12m

Created

23.02.1996

Expires

24.02.2029

Last Updated

14.04.2025

Registrar

Network Solutions, LLC

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Typography & Readability

Helvetica + Arial

49/100

Readability

/30

40/40

16px · LH 1.50

Hierarchy

/20

8/25

WCAG

/25

5/15

Contrast: undefined

Performance

/25

13/20

2 fonts

Heading Font

Helvetica

Sans

Body Font

Arial

Sans16px

Contrast Ratio

Reading Comfort

~37 CPL

Needs attention

36px

24px

16px

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

✅ Optimal line spacing: 1.50 ratio ensures comfortable reading.

✅ Good performance: Using 2 font families keeps load times fast.

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

⚠️ Cramped layout: 32 elements lack adequate spacing.

Buy on MyFonts

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

Google Tag ManagerFree

User behavior and product analytics

Sponsored

Scripts & Styles

23 Resources

Scripts

Styles

Async

Defer

Top Script Sources

googletagmanager.com(7)local(6)use.fontawesome.com(2)google-analytics.com(1)statcounter.com(1)

Website Identity

X (Twitter)LinkedIn YouTube

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Last analyzed: 13 Feb 2026 at 10:32

Historical Analysis & Change Tracking