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

spain.info

https://spain.info· First analyzed 15 Feb 2026· Updated 15 Feb 2026

Export

spain.info

Mobile

Sponsored

Hosting Provider

Stackscale BV

IP Address

185.104.134.129

Server Location

🇪🇸 Madrid, Spain

ASN

AS29119

Organization

Stackscale BV

Nameservers

ns.transparentedge.eu.ns.transparentedge.es.

Performance

Page Speed

2.7 MB

137 requests

Image Optimization

Lazy LoadResponsive

0–49

50–89

90–100

Architecture Stack

Headless

⚙️ SSR

Decoupled

Frontend

Styling

Tailwind CSS

API

Data Source

Headless CMS

Strapi

Infrastructure

Hosting

Stackscale BV

Progressive Web App

PWA ReadyWeb ManifestService WorkerApple Touch Icon

Detected API Sources

https://maps.googleapis.com/ma...

Technology Stack

14 Technologies Detected

CSS Frameworks

Analytics

Libraries

Fonts

Adobe Fonts (Typekit)Adobe Fonts

Meta Frameworks

Other

UI Components

Tag Managers

SEO Analysis

A+90/100

spain.infospain.info

Spanish Tourism | Tourist information on Spain | spain.info

Tourist information about Spain: art, culture, museums, monuments, beaches, cities, fiestas, routes, cuisine, natural spaces in Spain | spain.info

Title Length59 chars

Recommended: 50-60 chars

Description Length146 chars

Recommended: 120-160 chars

Issues (0)

1 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

12 URLs

robots.txt

146 rules

Sitemap reference found

Sponsored

Security Score

31%Critical

Interactive

HTTPS

No WAF

369d

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/2

Valid From

20.01.2026

Valid Until

19.02.2027

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.spain.infospain.info

SHA-256 Fingerprint

3F:06:71:E1:D1:6E:37:3F:B7:B9:83:40:7E:C2:5A:C0:69:3F:E0:0E...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

accept-ranges

bytes

age

9621

cache-control

🟡 3 Hours(max-age=10800)

content-encoding

📦 Gzip(gzip)

content-length

37538

content-type

text/html;charset=UTF-8

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

Domain Information

spain.info

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Notice (WP)

Cookie Consent Banner

Cookie Notice (WP)

GDPR Indicators

Cookie consent banner detected

CMP: Cookie Notice (WP)

Typography & Readability

stolzl + sans-serif

62/100

Readability

/30

30/40

40px · LH --

Hierarchy

/20

11/25

0.25x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

1 font

Heading Font

stolzl

Sans10px

Body Font

sans-serif

Sans40px

Contrast Ratio

Reading Comfort

~43 CPL

Needs attention

10px

40px

18px

16px

40px

Perfect Fifth

Scale

✅ Excellent readability: 40px 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.

✅ 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.

✅ Protected text on images: Using gradient for readability.

AAdobe Fonts Buy on MyFonts

Business & Marketing Stack

4 Tools Detected

Advanced

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Advertising

Facebook PixelMid-Market

Ad platforms and retargeting pixels

Social Media

Facebook SDKFree

Social widgets and sharing tools

Sponsored

Scripts & Styles

30 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(5)code.jquery.com(3)maps.googleapis.com(3)googletagmanager.com(2)connect.facebook.net(2)

Website Identity

Facebook X (Twitter)Instagram TikTok Pinterest

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Last analyzed: 15 Feb 2026 at 00:06

Historical Analysis & Change Tracking