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.

Back to Search

holland.com

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

Export

holland.com

Mobile

Sponsored

Hosting Provider

Prolocation B.V.

IP Address

94.228.132.139

Server Location

🇳🇱 Rotterdam, Netherlands

ASN

AS41887

Organization

Prolocation B.V.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

ns3.as41887.io.ns2.as41887.eu.ns1.as41887.nl.ns4.as41887.it.

Performance

Page Speed

711 KB

53 requests

Image Optimization

Lazy LoadResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Prolocation B.V.

CDN

Cloudflare

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

4 Technologies Detected

CSS Frameworks

Analytics

CDN

Customer Support

SEO Analysis

A84/100

holland.comholland.com

Discover the Netherlands: cities, nature & culture - Holland.com

Holland.com helps you discover and explore the Netherlands: from iconic canals to big beautiful beaches and historic sites.

Title Length64 chars

Recommended: 50-60 chars

Description Length123 chars

Recommended: 120-160 chars

Issues (0)

2 issues found

Upgrade to view details

Crawlability

Sitemap

robots.txt

11 rules

Sitemap reference found

Sponsored

Security Score

41%Poor

Interactive

HTTPS

WAF

56d

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)

www.holland.com

SHA-256 Fingerprint

24:AC:E2:C6:38:89:EC:0E:47:BD:B4:8E:1B:B4:CD:28:32:A4:4E:44...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

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HTTP Headers

Developer Console

cache-control

🟡 600s(max-age=600, private, must-revalidate)

cf-cache-status

BYPASS

cf-ray🇩🇪 Frankfurt

9cf8dea87b064f95-FRA

content-encoding

⚡ Brotli(br)

content-type

text/html; charset=UTF-8

date

Tue, 17 Feb 2026 22:55:00 GMT

Good Warning Issue

Email Infrastructure

Microsoft 365

Score

SPF

DKIM

DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (1)

holland-com.mail.protection.outlook.com

Domain Information

holland.com

Domain Age

30y 10m

Created

25.04.1995

Expires

26.04.2026

Last Updated

22.07.2025

Registrar

Hosting Concepts B.V. d/b/a Registrar.eu

DNSSEC

Not Enabled

Privacy & Compliance

Cookiebot

Cookie Consent Banner

Cookiebot

GDPR Indicators

Cookie consent banner detected

CMP: Cookiebot

Typography & Readability

nitti

70/100

Readability

/30

22/40

15px · LH --

Hierarchy

/20

25/25

4.33x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

1 font

Heading Font

nitti

Sans65px

Body Font

nitti

Sans15px

Contrast Ratio

Reading Comfort

~37 CPL

Needs attention

65px

27px

15px

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

✅ Strong hierarchy: Headlines are 4.3x larger than body text.

✅ 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: 24 elements lack adequate spacing.

Buy on MyFonts

Business & Marketing Stack

4 Tools Detected

Advanced

Behavior Analytics

Matomo (Piwik)Mid-Market

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Privacy & Cookies

CookiebotMid-Market

Cookie consent and privacy compliance tools

Sponsored

Scripts & Styles

9 Resources

Scripts

Styles

Async

Defer

Top Script Sources

nbtc.containers.piwik.pro(2)local(2)policy.app.cookieinformation.com(2)secure.intelligent-company-365.com(1)static.cloudflareinsights.com(1)

Website Identity

Facebook Instagram

Sponsored

Last analyzed: 17 Feb 2026 at 22:55

Historical Analysis & Change Tracking