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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festo.com

https://festo.com· First analyzed 17 Feb 2026· Updated 17 Feb 2026

Export

festo.com

Mobile

Sponsored

Hosting Provider

Festo AG & Co.

IP Address

141.130.250.196

Server Location

🇩🇪 Esslingen am Neckar, Germany

ASN

AS41700

Organization

Festo AG & Co.

Server

Festo

Nameservers

ns2.he.net.ns5.he.net.ns4.he.net.ns.festo.de.+1 more

Performance

Page Speed

19 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Festo AG & Co.

Technology Stack

1 Technologies Detected

CSS Frameworks

Tailwind CSS

SEO Analysis

D47/100

festo.comfesto.com

Festo Worldwide

An Overview of available Festo Websites

Title Length15 chars

Recommended: 50-60 chars

Description Length39 chars

Recommended: 120-160 chars

Issues (0)

7 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

63 URLs

robots.txt

76 rules

Sitemap reference found

Sponsored

Security Score

86%Very Good

Static / Informational

HTTPS

No WAF

40d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

GlobalSign nv-sa

Key Algorithm

RSA (4096 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

26.02.2025

Valid Until

30.03.2026

OCSP Stapling

Enabled

Subject Alternative Names (8)

*.festo.comwww.festo.com.cnwww.festo.destagewww.festo.com.cndevwww.festo.com.cnprodwww.festo.com.cnstage2www.festo.com.cnfesto.com

SHA-256 Fingerprint

7D:4B:49:83:26:F0:B8:43:7E:DF:28:94:14:22:AE:92:F4:B6:C6:96...

Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

cache-control

🔴 No Cache(no-cache)

content-security-policy

frame-ancestors 'self';

content-type

text/html; charset=utf-8

date

Tue, 17 Feb 2026 20:10:28 GMT

pragma

no-cache

request-context

appId=cid-v1:75de6588-3734-4055-aeb8-6d9b1a9297dd

Good Warning Issue

Email Infrastructure

Microsoft 365

Score

100

SPF

DKIM

DMARC

DMARC Policy

Reject (Strictest)

MX Records (1)

festo-com.mail.protection.outlook.com

Domain Information

festo.com

Domain Age

28y 12m

Created

27.02.1997

Expires

28.02.2035

Last Updated

27.11.2025

Registrar

Key-Systems GmbH

DNSSEC

Not Enabled

Privacy & Compliance

Didomi

Cookie Consent Banner

Didomi

GDPR Indicators

Cookie consent banner detected

CMP: Didomi

Data Protection Officer mentioned

Typography & Readability

Festo + MetaPro

68/100

Readability

/30

32/40

32px · LH 1.25

Hierarchy

/20

8/25

0.75x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

1 font

Heading Font

Festo

Sans24px

Body Font

MetaPro

Sans32px

Contrast Ratio

Reading Comfort

Dual Sans-Serif

left aligned

24px

32px

Minor Second

Scale

✅ Excellent readability: 32px body text is ideal for all devices.

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

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

✅ Clean layout: Consistent left alignment throughout.

Buy on MyFonts

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

13 Resources

Scripts

Styles

Async

Defer

Top Script Sources

festo.com(6)consent.festo.com(2)js.monitor.azure.com(1)

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Last analyzed: 17 Feb 2026 at 20:10

Historical Analysis & Change Tracking