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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admin.ch

https://admin.ch· First analyzed 10 Feb 2026· Updated 10 Feb 2026

Export

admin.ch

Mobile

Sponsored

Hosting Provider

Swiss Federation represented by FOITT

IP Address

162.23.130.190

Server Location

🇨🇭 Zollikofen, Switzerland

ASN

AS33845

Organization

Swiss Federation represented by FOITT

Server

Apache

CDN

CloudFront

Nameservers

ins3.admin.ch.ins4.admin.ch.ins5.admin.ch.ins2.admin.ch.+1 more

Performance

Page Speed

23.6 MB

76 requests

0–49

50–89

90–100

Architecture Stack

Headless

⚙️ SSR

Decoupled

Frontend

Framework

Vue.js

API

Data Source

Headless CMS

Directus

Infrastructure

Hosting

Swiss Federation represented by FOITT

CDN

CloudFront

Detected API Sources

/gov/de/start/_jcr_content/par...

Technology Stack

8 Technologies Detected

Frameworks

Meta Frameworks

Libraries

UI Components

CSS Frameworks

Icon Libraries

Analytics

Web Servers

SEO Analysis

D58/100

admin.chadmin.ch

Der Bundesrat admin.ch - Startseite

Neuste Entscheide der Schweizer Regierung, Medienkonferenzen des Bundesrates.

Title Length35 chars

Recommended: 50-60 chars

Description Length78 chars

Recommended: 120-160 chars

Issues (1)

• Missing H1 tag - every page should have one H1

5 issues found

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Security Score

56%Poor

Interactive

HTTPS

No WAF

248d

Top Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

accept-ranges

bytes

age

content-encoding

📦 Gzip(gzip)

content-length

13484

content-type

text/html;charset=utf-8

date

Tue, 10 Feb 2026 22:40:16 GMT

Good Warning Issue

Typography & Readability

Frutiger Neue

63/100

Readability

/30

32/40

15px · LH 1.50

Hierarchy

/20

8/25

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

1 font

Heading Font

Frutiger Neue

Sans

Body Font

Frutiger Neue

Sans15px

Contrast Ratio

Reading Comfort

~39 CPL

Needs attention

24px

17px

15px

⚠️ Small text: 15px may be hard to read on mobile. Consider 16px+.

✅ Optimal line spacing: 1.50 ratio ensures comfortable reading.

✅ 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.

⚠️ Cramped layout: 34 elements lack adequate spacing.

Buy on MyFonts

Business & Marketing Stack

3 Tools Detected

Advanced

Behavior Analytics

Matomo (Piwik)Mid-Market

Google AnalyticsFree

User behavior and product analytics

Social Media

Twitter/X WidgetsFree

Social widgets and sharing tools

Sponsored

Scripts & Styles

14 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(6)youtube.com(2)platform.twitter.com(2)analytics.bit.admin.ch(1)

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Last analyzed: 10 Feb 2026 at 22:40

Historical Analysis & Change Tracking