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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uni-greifswald.de

https://uni-greifswald.de· First analyzed 20 Feb 2026· Updated 20 Feb 2026

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uni-greifswald.de

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Hosting Provider

Ernst-Moritz-Arndt-Universitaet Greifswald

IP Address

141.53.15.120

Server Location

🇩🇪 Greifswald, Germany

ASN

AS680

Organization

Ernst-Moritz-Arndt-Universitaet Greifswald

Server

Apache

Nameservers

dns2.uni-greifswald.de.dns1.uni-greifswald.de.

Performance

Page Speed

5.2 MB

53 requests

Image Optimization

Lazy LoadResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

TYPO3

Technology Stack

5 Technologies Detected

Libraries

UI Components

Other

CSS Frameworks

Web Servers

SEO Analysis

A82/100

uni-greifswald.deuni-greifswald.de

Startseite - Universität Greifswald

Studieren, forschen und arbeiten an der Universität Greifswald: Studiengänge, Forschungsschwerpunkte, Internationales, Public Engagement sowie Stellen- und K...

Description truncated.

Title Length35 chars

Recommended: 50-60 chars

Description Length173 chars

Recommended: 120-160 chars

Issues (0)

3 issues found

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Crawlability

Sitemap

robots.txt

57 rules

Sponsored

Security Score

76%Good

Interactive

HTTPS

No WAF

257d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Hellenic Academic and Research Institutions CA

Key Algorithm

ECDSA (secp384r1) (384 bit)

Signature

ECDSA with SHA-384

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

04.11.2025

Valid Until

04.11.2026

OCSP Stapling

Enabled

Subject Alternative Names (1)

www.uni-greifswald.de

SHA-256 Fingerprint

81:AE:DF:C6:62:A7:F1:CB:8E:BA:41:E8:37:AF:36:70:ED:50:57:94...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

content-encoding

📦 Gzip(gzip)

content-language

de-DE

content-length

20421

content-security-policy

default-src 'self' 'unsafe-inline' 'unsafe-eval' data: blob:...

content-type

text/html; charset=utf-8

date

Fri, 20 Feb 2026 11:16:15 GMT

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

Reject (Strictest)

MX Records (2)

mx1.uni-greifswald.de

mx2.uni-greifswald.de

Domain Information

uni-greifswald.de

Last Updated

02.01.2019

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Typography & Readability

Roboto Condensed

81/100

Readability

/30

40/40

17px · LH 1.50

Hierarchy

/20

18/25

2.47x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

1 font

Heading Font

Roboto Condensed

Sans42px

Body Font

Roboto Condensed

Sans17px

Contrast Ratio

Reading Comfort

~66 CPL

Optimal (45–75)

42px

28px

42px

17px

✅ Excellent readability: 17px body text is ideal for all devices.

✅ Optimal line spacing: 1.50 ratio ensures comfortable reading.

✅ Strong hierarchy: Headlines are 2.5x larger than 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.

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Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

19 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(17)

Website Identity

Facebook Instagram YouTube Mastodon Bluesky

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Last analyzed: 20 Feb 2026 at 11:16

Historical Analysis & Change Tracking