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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rohde-schwarz.com

https://rohde-schwarz.com· First analyzed 20 Feb 2026· Updated 20 Feb 2026

Export

rohde-schwarz.com

Sponsored

Hosting Provider

Maui County

IP Address

168.215.239.101

Server Location

🇺🇸 Honolulu, United States

ASN

AS3549

Organization

Maui County

Nameservers

ns3.lemarit.de.ns2.lemarit.net.ns2.lemarit.de.ns1.lemarit.de.+1 more

Performance

Page Speed

65 KB

44 requests

Image Optimization

Lazy LoadResponsive

0–49

50–89

90–100

Architecture Stack

Headless

⚙️ SSR

Decoupled

API

Data Source

Headless CMS

Strapi

Infrastructure

Hosting

Maui County

Progressive Web App

Web ManifestApple Touch IconTheme Color

Detected API Sources

https://cdn.rohde-schwarz.com/...

Technology Stack

5 Technologies Detected

Libraries

Other

Other

CSS Frameworks

Personalization

SEO Analysis

A+90/100

rohde-schwarz.comrohde-schwarz.com

Industry-leading technology company | Rohde & Schwarz

Rohde & Schwarz is ensuring a safer and connected world with its Test & Measurement, Technology Systems and Networks & Cybersecurity Divisions.

Title Length53 chars

Recommended: 50-60 chars

Description Length143 chars

Recommended: 120-160 chars

Issues (0)

2 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

192 URLs

robots.txt

7 rules

Sitemap reference found

Sponsored

Security Score

81%Very Good

Interactive

HTTPS

No WAF

63d

Certificate Details

Type

Extended Validation (EV)

Certificate Authority

DigiCert Inc

Key Algorithm

RSA (4096 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/1.1

Valid From

07.04.2025

Valid Until

24.04.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

www.rohde-schwarz.comrohde-schwarz.com

SHA-256 Fingerprint

D5:B7:F7:46:BF:4D:16:48:6B:B9:B4:6C:EF:BC:3A:B5:72:88:07:AD...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

cache-control

🔴 No Cache(no-store, no-cache, must-revalidate)

connection

Keep-Alive

content-encoding

📦 Gzip(gzip)

content-length

14082

content-security-policy

frame-ancestors 'self' https://*.rohde-schwarz.com/ https://...

content-type

text/html; charset=UTF-8

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (2)

mx-in02.eu.retarus.com

mx-in01.eu.retarus.com

Domain Information

rohde-schwarz.com

Domain Age

26y 11m

Created

09.03.1999

Expires

09.03.2026

Last Updated

18.10.2024

Registrar

COREhub, S.R.L.

DNSSEC

Not Enabled

Privacy & Compliance

OneTrust

Cookie Consent Banner

OneTrust

GDPR Indicators

Cookie consent banner detected

CMP: OneTrust

Data Protection Officer mentioned

Typography & Readability

Linotype Univers Condensed + sans-serif

51/100

Readability

/30

32/40

14px · LH 1.43

Hierarchy

/20

18/25

2.57x ratio

WCAG

/25

5/15

Contrast: undefined

Performance

/25

13/20

2 fonts

Heading Font

Linotype Univers Condensed

Sans36px

Body Font

sans-serif

Sans14px

Contrast Ratio

Reading Comfort

~39 CPL

Needs attention

36px

26px

18px

14px

Major Second

Scale

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

✅ Optimal line spacing: 1.43 ratio ensures comfortable reading.

✅ Strong hierarchy: Headlines are 2.6x larger than body text.

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

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

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

Buy on MyFonts

Business & Marketing Stack

3 Tools Detected

Enterprise

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Privacy & Cookies

OneTrustEnterprise

Cookie consent and privacy compliance tools

A/B Testing & Optimization

Dynamic YieldEnterprise

Experimentation and conversion optimization

Sponsored

Scripts & Styles

19 Resources

Scripts

Styles

Async

Defer

Top Script Sources

cdn.rohde-schwarz.com(7)assets.adobedtm.com(6)cdn.userway.org(2)st-eu.dynamicyield.com(1)cdn.cookielaw.org(1)

Website Identity

Facebook Instagram LinkedIn YouTube

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Last analyzed: 20 Feb 2026 at 01:13

Historical Analysis & Change Tracking