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

wwf.de

https://wwf.de· First analyzed 17 Feb 2026· Updated 17 Feb 2026

Export

wwf.de

Sponsored

Hosting Provider

Hetzner

hetzner.com

IP Address

116.203.5.221

Server Location

🇩🇪 Nuremberg, Germany

ASN

AS24940

Organization

Hetzner

Server

Apache

Nameservers

ns1076.ui-dns.com.ns1125.ui-dns.de.ns1055.ui-dns.org.ns1053.ui-dns.biz.

Performance

Page Speed

7.9 MB

90 requests

Image Optimization

Lazy LoadResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

TYPO3

Technology Stack

4 Technologies Detected

Frameworks

Other

CSS Frameworks

Web Servers

SEO Analysis

B76/100

wwf.dewwf.de

WWF Deutschland – Organisation für Natur- und Artenschutz

Die Mission des WWF: Bewahrung der biologischen Vielfalt – ein lebendiger Planet für uns und unsere Kinder

Title Length57 chars

Recommended: 50-60 chars

Description Length106 chars

Recommended: 120-160 chars

Issues (0)

3 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

4 URLs

robots.txt

34 rules

Sitemap reference found

Allows all crawlers

Sponsored

Security Score

61%Fair

Interactive

HTTPS

No WAF

49d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

07.01.2026

Valid Until

07.04.2026

Subject Alternative Names (2)

wwf.dewww.wwf.de

SHA-256 Fingerprint

C5:3F:EA:A3:AC:D5:41:BE:C8:61:31:5D:E7:DC:F4:FE:01:85:77:66...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

accept-ranges

bytes

cache-control

🟡 1360s(max-age=1360)

content-encoding

📦 Gzip(gzip)

content-language

content-length

19678

content-type

text/html; charset=utf-8

Good Warning Issue

Email Infrastructure

Microsoft 365

Score

100

SPF

DKIM

DMARC

DMARC Policy

Reject (Strictest)

MX Records (1)

wwf-de.mail.protection.outlook.com

Domain Information

wwf.de

Last Updated

08.07.2024

DNSSEC

Not Enabled

Privacy & Compliance

Usercentrics

Cookie Consent Banner

Usercentrics

GDPR Indicators

Cookie consent banner detected

CMP: Usercentrics

Data Protection Officer mentioned

Typography & Readability

WWF + Open Sans

64/100

Readability

/30

40/40

18px · LH 1.78

Hierarchy

/20

21/25

3.11x ratio

WCAG

/25

5/15

Contrast: undefined

Performance

/25

13/20

2 fonts

Heading Font

WWF

Sans56px

Body Font

Open Sans

Sans18px

Contrast Ratio

Reading Comfort

~34 CPL

Needs attention

56px

18px

Minor Second

Scale

✅ Excellent readability: 18px body text is ideal for all devices.

✅ Optimal line spacing: 1.78 ratio ensures comfortable reading.

✅ Strong hierarchy: Headlines are 3.1x larger than body text.

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

✅ Smart font loading: Using font-display: swap prevents invisible text during load.

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

Buy on MyFonts

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Scheduling

CalendlySMB

Appointment and meeting schedulers

Sponsored

Scripts & Styles

8 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(3)app.usercentrics.eu(2)privacy-proxy.usercentrics.eu(1)

Website Identity

wwf.de

📧 Microsoft 365

Social Profiles

Facebook Pinterest

Sponsored

Last analyzed: 17 Feb 2026 at 05:35

Historical Analysis & Change Tracking