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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museoreinasofia.es

https://museoreinasofia.es· First analyzed 19 Feb 2026· Updated 19 Feb 2026

Export

museoreinasofia.es

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Hosting Provider

ASAC Comunicaciones S.L.

IP Address

154.58.18.87

Server Location

🇪🇸 Llanera, Spain

ASN

AS200165

Organization

ASAC Comunicaciones S.L.

Server

Apache

Nameservers

ns2.age.gob.es.ns1.age.gob.es.

Performance

Page Speed

2.5 MB

52 requests

Image Optimization

Lazy LoadWebPResponsive

0–49

50–89

90–100

Architecture Stack

Hybrid

⚡ SSG

Frontend

Framework

Gatsby

Infrastructure

Hosting

ASAC Comunicaciones S.L.

Technology Stack

6 Technologies Detected

Analytics

Meta Frameworks

CSS Frameworks

Tag Managers

Web Servers

SEO Analysis

D55/100

museoreinasofia.esmuseoreinasofia.es

Museo Reina Sofía

No description available for this page.

Title Length17 chars

Recommended: 50-60 chars

Description Length0 chars

Recommended: 120-160 chars

Issues (2)

• Missing meta description - important for click-through rates
• Missing H1 tag - every page should have one H1

5 issues found

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Crawlability

Sitemap

robots.txt

4 rules

Sponsored

Security Score

76%Good

Static / Informational

HTTPS

No WAF

62d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Sectigo Limited

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/1.1

Valid From

22.04.2025

Valid Until

22.04.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.museoreinasofia.esmuseoreinasofia.es

SHA-256 Fingerprint

32:07:D5:C9:FE:76:CC:FA:01:FA:3C:C4:6F:50:64:76:BB:C8:FA:93...

Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

accept-ranges

bytes

connection

Upgrade, Keep-Alive

content-encoding

📦 Gzip(gzip)

content-length

29145

content-type

text/html

date

Thu, 19 Feb 2026 16:58:55 GMT

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

Reject (Strictest)

MX Records (2)

mail1.correo.gob.es

mail2.correo.gob.es

Domain Information

museoreinasofia.es

DNSSEC

Not Enabled

Privacy & Compliance

OneTrust

Cookie Consent Banner

OneTrust

GDPR Indicators

Cookie consent banner detected

CMP: OneTrust

Typography & Readability

WorkSans + PFDinTextPro

53/100

Readability

/30

25/40

85px · LH 1.02

Hierarchy

/20

8/25

WCAG

/25

15/15

Contrast: undefined

Performance

/25

10/20

3 fonts

Heading Font

WorkSans

Sans

Body Font

PFDinTextPro

Sans85px

Contrast Ratio

Reading Comfort

~35 CPL

Needs attention

64px

85px

Perfect Fourth

Scale

✅ Excellent readability: 85px body text is ideal for all devices.

⚠️ Tight line spacing (1.02). Consider 1.4-1.6 for better readability.

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

⚠️ Cramped layout: 53 elements lack adequate spacing.

✅ Clean layout: Consistent left alignment throughout.

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Business & Marketing Stack

3 Tools Detected

Advanced

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Privacy & Cookies

OneTrustEnterprise

Cookie consent and privacy compliance tools

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Scripts & Styles

9 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(3)googletagmanager.com(2)google-analytics.com(1)extend.vimeocdn.com(1)cookie-cdn.cookiepro.com(1)

Website Identity

Facebook X (Twitter)Instagram YouTube

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Last analyzed: 19 Feb 2026 at 16:59

Historical Analysis & Change Tracking