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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n8n.io

https://n8n.io· First analyzed 17 Feb 2026· Updated 17 Feb 2026

Export

n8n.io

Sponsored

Hosting Provider

Cloudflare

cloudflare.com

IP Address

172.67.68.102

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

ernest.ns.cloudflare.com.isla.ns.cloudflare.com.

Performance

Page Speed

2.4 MB

137 requests

Image Optimization

Lazy LoadWebPResponsive

0–49

50–89

90–100

Architecture Stack

JAMstack

⚙️ SSR

Decoupled

Frontend

Framework

Nuxt.js

Styling

Tailwind CSS

API

Data Source

Headless CMS

Strapi

Infrastructure

Hosting

Cloudflare

CDN

Cloudflare

Detected API Sources

https://n8niostorageaccount.bl...

Technology Stack

8 Technologies Detected

Analytics

Meta Frameworks

Other

CSS Frameworks

Tag Managers

CDN

SEO Analysis

B78/100

n8n.ion8n.io

AI Workflow Automation Platform & Tools - n8n

n8n is a workflow automation platform that uniquely combines AI capabilities with business process automation, giving technical teams the flexibility of code...

Description truncated.

Title Length45 chars

Recommended: 50-60 chars

Description Length184 chars

Recommended: 120-160 chars

Issues (1)

• Many images missing alt text (105/127)

2 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

12 URLs

robots.txt

3 rules

Sitemap reference found

Sponsored

A+

Security Score

93%Excellent

Static / Informational

HTTPS

WAF

57d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Google Trust Services

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-256

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

15.01.2026

Valid Until

15.04.2026

OCSP Stapling

Enabled

Subject Alternative Names (1)

n8n.io

SHA-256 Fingerprint

77:B4:EE:87:90:22:82:E7:D3:31:36:06:78:D2:D0:AC:C5:63:90:E1...

Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

access-control-allow-origin

cache-control

🟡 0s(public, max-age=0, must-revalidate)

cf-cache-status

DYNAMIC

cf-ray🇩🇪 Frankfurt

9cf1b6c4ba4dd21e-FRA

content-encoding

⚡ Brotli(br)

content-security-policy-report-only

default-src 'self' https://n8n.io data: 'unsafe-inline'; scr...

Good Warning Issue

Email Infrastructure

Google Workspace

Score

100

SPF

DKIM

DMARC

DMARC Policy

Reject (Strictest)

MX Records (6)

alt4.aspmx.l.google.com

aspmx.l.google.com

alt1.aspmx.l.google.com

alt3.aspmx.l.google.com

+2 more

Domain Information

n8n.io

Domain Age

7y 2m

Created

01.12.2018

Expires

01.12.2026

Last Updated

26.10.2025

Registrar

NameCheap, Inc.

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Data Protection Officer mentioned

Typography & Readability

geomanist-book + geomanist

82/100

Readability

/30

40/40

16px · LH 1.50

Hierarchy

/20

21/25

2.5x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

2 fonts

Heading Font

geomanist-book

Sans40px

Body Font

geomanist

Sans16px

Contrast Ratio

Reading Comfort

~36 CPL

Needs attention

40px

48px

24px

16px

✅ Excellent readability: 16px 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 2 font families keeps load times fast.

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

✅ Protected text on images: Using gradient for readability.

Buy on MyFonts

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

14 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(1)cdn.paddle.com(1)googletagmanager.com(1)static.cloudflareinsights.com(1)

Website Identity

X (Twitter)LinkedIn YouTube GitHub Discord

Sponsored

Last analyzed: 17 Feb 2026 at 02:04

Historical Analysis & Change Tracking