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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bund.net

https://bund.net· First analyzed 20 Feb 2026· Updated 20 Feb 2026

Export

bund.net

Sponsored

Hosting Provider

Minuskel Screen Partner GmbH

IP Address

212.222.128.81

Server Location

🇩🇪 Berlin, Germany

ASN

AS3257

Organization

Minuskel Screen Partner GmbH

Server

Apache

Nameservers

ns.ipn.de.ns.link-m.de.

Performance

Page Speed

2.7 MB

55 requests

Image Optimization

Lazy LoadResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

TYPO3

Technology Stack

7 Technologies Detected

Analytics

Libraries

CSS Frameworks

Tag Managers

Marketing

Web Servers

SEO Analysis

A85/100

bund.netbund.net

Bund für Umwelt und Naturschutz Deutschland (BUND)

Der Bund für Umwelt und Naturschutz Deutschland (BUND) kämpft für den Schutz unserer Natur und Umwelt – damit die Erde für uns alle bewohnbar bleibt.

Title Length50 chars

Recommended: 50-60 chars

Description Length150 chars

Recommended: 120-160 chars

Issues (0)

2 issues found

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Crawlability

Sitemap

Type: standard

robots.txt

10 rules

Sitemap reference found

Sponsored

Security Score

56%Poor

Interactive

HTTPS

No WAF

56d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (3072 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

18.01.2026

Valid Until

18.04.2026

Subject Alternative Names (9)

2016.bund.netbund-mitglied.jetztbund.netmitglied.bund.netspenden.2016.bund.netspenden.bund.netwww.2016.bund.netwww.bund-mitglied.jetzt+1 more

SHA-256 Fingerprint

78:A1:AD:3D:E7:30:88:0C:A7:C6:AB:07:0B:98:7D:6C:7D:17:33:7B...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

cache-control

🟡 1 Hours(max-age=4580)

content-encoding

📦 Gzip(gzip)

content-language

de-DE

content-type

text/html; charset=utf-8

date

Fri, 20 Feb 2026 10:49:41 GMT

expires

Fri, 20 Feb 2026 12:06:01 GMT

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (1)

mail.minuskel.de

Domain Information

bund.net

Domain Age

29y 5m

Created

14.09.1996

Expires

13.09.2026

Last Updated

07.07.2025

Registrar

HTTP.NET INTERNET GMBH

DNSSEC

Not Enabled

Privacy & Compliance

Cookiebot

Cookie Consent Banner

Cookiebot

GDPR Indicators

Cookie consent banner detected

CMP: Cookiebot

Data Protection Officer mentioned

Legitimate interest basis mentioned

Typography & Readability

Roboto Slab + sans-serif

57/100

Readability

/30

32/40

14px · LH 1.50

Hierarchy

/20

18/25

2.57x ratio

WCAG

/25

5/15

Contrast: undefined

Performance

/25

17/20

System fonts

Heading Font

Roboto Slab

Sans36px

Body Font

sans-serif

Sans14px

Contrast Ratio

Reading Comfort

~54 CPL

Optimal (45–75)

36px

55px

26px

14px

Minor Second

Scale

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

✅ Optimal line spacing: 1.50 ratio ensures comfortable reading.

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

✅ Excellent performance: System fonts eliminate font loading delays (better LCP).

✅ 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

4 Tools Detected

Enterprise

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Advertising

Microsoft AdsEnterprise

Ad platforms and retargeting pixels

Privacy & Cookies

CookiebotMid-Market

Cookie consent and privacy compliance tools

Sponsored

Scripts & Styles

11 Resources

Scripts

Styles

Async

Defer

Top Script Sources

consent.cookiebot.eu(2)local(2)consentcdn.cookiebot.eu(1)googletagmanager.com(1)ajax.googleapis.com(1)

Website Identity

Facebook Instagram YouTube TikTok Bluesky

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Last analyzed: 20 Feb 2026 at 10:49

Historical Analysis & Change Tracking