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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britishmuseum.org

https://britishmuseum.org· First analyzed 12 Feb 2026· Updated 12 Feb 2026

Export

britishmuseum.org

Mobile

Sponsored

Hosting Provider

Cloudflare

cloudflare.com

IP Address

172.66.172.177

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

izabella.ns.cloudflare.com.sonny.ns.cloudflare.com.

Performance

Page Speed

957 KB

42 requests

Image Optimization

Lazy LoadResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

WordPress

cms

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

15 Technologies Detected

Advertising

Criteo Taboola Outbrain

Analytics

Payments

Frameworks

Libraries

CSS Frameworks

Tag Managers

Social

Comments

CDN

Plugins

SEO Analysis

B78/100

britishmuseum.orgbritishmuseum.org

British Museum

Welcome to the British Museum - discover two million years of human history and culture.

Title Length14 chars

Recommended: 50-60 chars

Description Length88 chars

Recommended: 120-160 chars

Issues (0)

3 issues found

Upgrade to view details

Sponsored

Security Score

35%Critical

Critical / Transactional

HTTPS

WAF

45d

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

30.12.2025

Valid Until

30.03.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

britishmuseum.org*.britishmuseum.org

SHA-256 Fingerprint

91:E9:51:1A:8C:38:35:9D:84:F0:8E:E7:73:89:37:BD:C5:F2:1E:A4...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

age

140

alt-svc

h3=":443"; ma=86400

cache-control

🟡 600s(max-age=600, public)

cf-cache-status

HIT

cf-ray🇩🇪 Frankfurt

9ccd244e9f218f32-FRA

content-encoding

⚡ Brotli(br)

Good Warning Issue

Email Infrastructure

Barracuda

Score

SPF

DKIM

DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (2)

d231451.a.ess.uk.barracudanetworks.com

d231451.b.ess.uk.barracudanetworks.com

Domain Information

britishmuseum.org

Domain Age

24y 1m

Created

27.12.2001

Expires

27.12.2026

Last Updated

28.12.2025

Registrar

CSC Corporate Domains, Inc.

DNSSEC

Not Enabled

Privacy & Compliance

Cookiebot

Cookie Consent Banner

Cookiebot

GDPR Indicators

Cookie consent banner detected

CMP: Cookiebot

Data Protection Officer mentioned

Legitimate interest basis mentioned

Typography & Readability

Helvetica Neue

91/100

Readability

/30

40/40

17px · LH 1.50

Hierarchy

/20

21/25

3.53x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

20/20

System fonts

Heading Font

Helvetica Neue

Sans60px

Body Font

helvetica neue

Sans17px

Contrast Ratio

Reading Comfort

~34 CPL

Needs attention

60px

20px

30px

17px

✅ Excellent readability: 17px body text is ideal for all devices.

✅ Optimal line spacing: 1.50 ratio ensures comfortable reading.

✅ Strong hierarchy: Headlines are 3.5x larger than body text.

✅ Excellent performance: System fonts eliminate font loading delays (better LCP).

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

✅ Protected text on images: Using gradient for readability.

Business & Marketing Stack

4 Tools Detected

Advanced

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Privacy & Cookies

CookiebotMid-Market

Quantcast ChoiceMid-Market

Cookie consent and privacy compliance tools

Sponsored

Scripts & Styles

18 Resources

Scripts

Styles

Async

Defer

Top Script Sources

googletagmanager.com(6)local(6)consent.cookiebot.com(3)

Website Identity

britishmuseum.org

24 years old

CSC Corporate Domains, Inc.📧 Barracuda

Social Profiles

Facebook X (Twitter)Instagram YouTube

Sponsored

Last analyzed: 12 Feb 2026 at 15:33

Historical Analysis & Change Tracking