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

mdr.de

https://mdr.de· First analyzed 13 Feb 2026· Updated 13 Feb 2026

Export

mdr.de

Mobile

Sponsored

Hosting Provider

Mitteldeutscher Rundfunk

IP Address

193.22.36.128

Server Location

🇩🇪 Leipzig, Germany

ASN

AS680

Organization

Mitteldeutscher Rundfunk

Server

Apache

Nameservers

hinkelstein2.mdr.de.news.uni-leipzig.de.deneb.dfn.de.hinkelstein.mdr.de.

Performance

Page Speed

2.1 MB

75 requests

Image Optimization

Lazy LoadResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Mitteldeutscher Rundfunk

Technology Stack

5 Technologies Detected

Meta Frameworks

Libraries

Other

CSS Frameworks

Web Servers

SEO Analysis

A80/100

mdr.demdr.de

mdr.de – Radio, Fernsehen, Nachrichten für Mitteldeutschland ...

Nachrichten, Sport, Kultur, Unterhaltung, Audios und Videos aus Sachsen, Sachsen-Anhalt, Thüringen und der Welt. Und das MDR-Programm in Radio und TV.

Title truncated.

Title Length202 chars

Recommended: 50-60 chars

Description Length150 chars

Recommended: 120-160 chars

Issues (0)

3 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

robots.txt

119 rules

Sitemap reference found

Sponsored

Security Score

81%Very Good

Static / Informational

HTTPS

No WAF

253d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

DigiCert Inc

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-384

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

10.02.2026

Valid Until

24.10.2026

OCSP Stapling

Enabled

Subject Alternative Names (20)

www.mdr.deapp.kika.debeta.brisant.decdn.jumpradio.decdn.kika.decdn.kikaninchen.decdn.mdr.decdn.mdrjump.de+12 more

SHA-256 Fingerprint

3A:23:9C:70:6E:CA:1E:11:8C:64:19:CC:1B:B4:62:EB:E1:4B:78:27...

Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

accept-ranges

bytes

access-control-allow-credentials

false

access-control-allow-headers

access-control-allow-methods

GET,POST

access-control-allow-origin

access-control-max-age

86400

Good Warning Issue

Email Infrastructure

Microsoft 365

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (1)

mdr-de.mail.protection.outlook.com

Domain Information

mdr.de

Last Updated

30.05.2016

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Typography & Readability

Open Sans

78/100

Readability

/30

40/40

16px · LH 1.63

Hierarchy

/20

15/25

1x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

1 font

Heading Font

Open Sans

Sans16px

Body Font

Open Sans

Sans16px

Contrast Ratio

Reading Comfort

~37 CPL

Needs attention

16px

26px

16px

Minor Second

Scale

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

✅ Optimal line spacing: 1.62 ratio ensures comfortable reading.

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

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

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

✅ Protected text on images: Using gradient for readability.

Buy on MyFonts

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

Matomo (Piwik)Mid-Market

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

22 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(5)mdr.de(4)gstatic.com(3)app.23degrees.io(1)

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Last analyzed: 13 Feb 2026 at 05:14

Historical Analysis & Change Tracking