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

gencat.cat

https://gencat.cat· First analyzed 12 Feb 2026· Updated 12 Feb 2026

Export

gencat.cat

Mobile

Sponsored

Hosting Provider

New site web services

IP Address

83.247.151.41

Server Location

🇪🇸 Barcelona, Spain

ASN

AS39551

Organization

New site web services

Server

Apache

Nameservers

ns2.gencat.cat.ns2.gencat.net.ns1.gencat.net.ns1.gencat.cat.+2 more

Performance

Page Speed

23.6 MB

98 requests

Image Optimization

Lazy Load

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Adobe Experience Manager

Technology Stack

6 Technologies Detected

CSS Frameworks

Libraries

UI Components

Analytics

Web Servers

SEO Analysis

C64/100

gencat.catgencat.cat

Inici

No description available for this page.

Title Length5 chars

Recommended: 50-60 chars

Description Length0 chars

Recommended: 120-160 chars

Issues (1)

• Missing meta description - important for click-through rates

4 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

robots.txt

35 rules

Sitemap reference found

Allows all crawlers

Sponsored

Security Score

21%Critical

Interactive

HTTPS

No WAF

293d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

Sectigo Limited

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

02.12.2025

Valid Until

02.12.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

web.gencat.catwww.web.gencat.cat

SHA-256 Fingerprint

AF:0B:0B:D8:FE:74:EA:E6:E2:4A:67:3F:8F:0E:86:7D:0F:4C:86:9D...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

accept-ranges

bytes

connection

Keep-Alive

content-length

180

content-type

text/html

date

Thu, 12 Feb 2026 21:03:23 GMT

etag

"b4-50d9004a61c00"

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (2)

mx2.hc489-80.eu.iphmx.com

mx1.hc489-80.eu.iphmx.com

Domain Information

gencat.cat

Domain Age

20 years

Created

14.02.2006

Expires

14.02.2027

Last Updated

11.02.2026

Registrar

Entorno Digital

DNSSEC

Not Enabled

Typography & Readability

Open Sans

88/100

Readability

/30

40/40

20px · LH 1.50

Hierarchy

/20

25/25

2x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

1 font

Heading Font

Open Sans

Sans40px

Body Font

Open Sans

Sans20px

Contrast Ratio

Reading Comfort

~36 CPL

Needs attention

40px

16px

18px

20px

✅ Excellent readability: 20px body text is ideal for all devices.

✅ Optimal line spacing: 1.50 ratio ensures comfortable reading.

✅ Strong hierarchy: Headlines are 2.0x 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.

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

Buy on MyFonts

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

30 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(17)gstatic.com(1)gencat.containers.piwik.pro(1)google.com(1)

Website Identity

Facebook X (Twitter)Instagram LinkedIn TikTok

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Last analyzed: 12 Feb 2026 at 21:03

Historical Analysis & Change Tracking