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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liebherr.com

https://liebherr.com· First analyzed 16 Feb 2026· Updated 16 Feb 2026

Export

liebherr.com

Sponsored

Hosting Provider

Cloudflare

cloudflare.com

IP Address

104.16.191.5

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

ns3.lemarit.net.lhpns01.liebherr.de.ns4.lemarit.de.

Performance

Page Speed

574 KB

138 requests

Image Optimization

Lazy LoadWebPResponsive

0–49

50–89

90–100

Architecture Stack

Hybrid

⚙️ SSR

Frontend

Framework

Next.js

Styling

Tailwind CSS

CMS

BigCommerce

Infrastructure

Hosting

Cloudflare

CDN

Cloudflare

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

6 Technologies Detected

Meta Frameworks

Other

CSS Frameworks

Tag Managers

CDN

SEO Analysis

C67/100

liebherr.comliebherr.com

Liebherr – international Group & family-run company - Liebherr

The Liebherr Group is one of the largest construction machine manufacturers in the world. It is also among the leading providers of technology in many

Title Length62 chars

Recommended: 50-60 chars

Description Length150 chars

Recommended: 120-160 chars

Issues (1)

• Many images missing alt text (15/25)

5 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

robots.txt

10 rules

Sitemap reference found

Sponsored

Security Score

81%Very Good

Interactive

HTTPS

WAF

59d

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+H3

Valid From

16.01.2026

Valid Until

16.04.2026

OCSP Stapling

Enabled

Subject Alternative Names (1)

www.liebherr.com

SHA-256 Fingerprint

36:B0:B6:0D:DC:CB:D4:89:92:BA:3A:A3:35:96:58:D4:7B:23:A2:BE...

Upgrade to view header details

HTTP Headers

Developer Console

alt-svc

h3=":443"; ma=86400

cache-control

🟡 1 Hours(public, max-age=3600)

cf-cache-status

HIT

cf-ray🇩🇪 Frankfurt

9cecd826cd6439ca-FRA

content-encoding

⚡ Brotli(br)

content-security-policy

connect-src 'self' data: *.analytics.google.com distillery.p...

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

Reject (Strictest)

MX Records (2)

mxb-00701402.gslb.pphosted.com

mxa-00701402.gslb.pphosted.com

Domain Information

liebherr.com

Domain Age

29y 11m

Created

05.03.1996

Expires

06.03.2026

Last Updated

07.03.2025

Registrar

COREhub, S.R.L.

DNSSEC

Not Enabled

Privacy & Compliance

Usercentrics

Cookie Consent Banner

Usercentrics

GDPR Indicators

Cookie consent banner detected

CMP: Usercentrics

Typography & Readability

LiebherrHead-Black

66/100

Readability

/30

25/40

24px · LH 1.17

Hierarchy

/20

18/25

2x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

2 fonts

Heading Font

LiebherrHead-Black

Sans48px

Body Font

LiebherrHead-Black

Sans24px

Contrast Ratio

Reading Comfort

~38 CPL

Needs attention

48px

40px

32px

24px

✅ Excellent readability: 24px body text is ideal for all devices.

⚠️ Tight line spacing (1.17). Consider 1.4-1.6 for better readability.

✅ Strong hierarchy: Headlines are 2.0x larger than body text.

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

✅ Consistent design: Single font family with weight variations is a modern best practice.

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

Buy on MyFonts

Business & Marketing Stack

3 Tools Detected

Advanced

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Advertising

Microsoft AdsEnterprise

Ad platforms and retargeting pixels

Sponsored

Scripts & Styles

21 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(18)gtm.liebherr.com(1)static.liebherr.com(1)

Website Identity

LinkedIn YouTube TikTok

Sponsored

Last analyzed: 16 Feb 2026 at 11:53

Historical Analysis & Change Tracking