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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uab.es

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

Export

uab.es

Sponsored

Hosting Provider

Xiuab

IP Address

158.109.120.133

Server Location

🇪🇸 Barcelona, Spain

ASN

AS13041

Organization

Xiuab

Server

Apache

Nameservers

dns.uab.es.sun.rediris.es.dns1.uab.es.chico.rediris.es.+2 more

Performance

Page Speed

5.7 MB

41 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Xiuab

Technology Stack

7 Technologies Detected

Analytics

Libraries

UI Components

CSS Frameworks

Tag Managers

Web Servers

SEO Analysis

A88/100

uab.esuab.es

Universitat Autònoma de Barcelona - UAB Barcelona

La UAB és una universitat jove, pública i capdavantera. Líder als rànquings i referent en recerca. Barcelonina, catalana i internacional. Transformadora, sol...

Description truncated.

Title Length49 chars

Recommended: 50-60 chars

Description Length248 chars

Recommended: 120-160 chars

Issues (0)

2 issues found

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Crawlability

Sitemap

Type: standard

50,000 URLs

robots.txt

21 rules

Sitemap reference found

Sponsored

Security Score

46%Poor

Interactive

HTTPS

No WAF

97d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Hellenic Academic and Research Institutions CA

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.2

HTTP Protocol

HTTP/1.1

Valid From

28.05.2025

Valid Until

28.05.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.uab.catuab.cat

SHA-256 Fingerprint

4F:67:73:D3:FC:E0:89:48:4F:90:1E:28:49:A5:11:B0:A6:48:5E:9B...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

accept-ranges

bytes

connection

Keep-Alive

content-encoding

📦 Gzip(gzip)

content-length

14487

content-type

text/html

date

Thu, 19 Feb 2026 21:15:43 GMT

Good Warning Issue

Email Infrastructure

Microsoft 365

Score

SPF

DKIM

DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (1)

uab-es.mail.protection.outlook.com

Domain Information

uab.es

DNSSEC

Not Enabled

Privacy & Compliance

Cookiebot

Cookie Consent Banner

Cookiebot

GDPR Indicators

Cookie consent banner detected

CMP: Cookiebot

Typography & Readability

Mona Sans

71/100

Readability

/30

40/40

24px · LH 1.50

Hierarchy

/20

13/25

1.51x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

1 font

Heading Font

Mona Sans

Sans36px

Body Font

Mona Sans

Sans24px

Contrast Ratio

Reading Comfort

~43 CPL

Needs attention

36px

27px

58px

24px

Augmented Fourth

Scale

✅ Excellent readability: 24px body text is ideal for all devices.

✅ Optimal line spacing: 1.50 ratio ensures comfortable reading.

✅ Good hierarchy: Clear distinction between headlines and 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

3 Tools Detected

Advanced

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Privacy & Cookies

CookiebotMid-Market

Cookie consent and privacy compliance tools

Sponsored

Scripts & Styles

11 Resources

Scripts

Styles

Async

Defer

Top Script Sources

googletagmanager.com(3)consent.cookiebot.com(2)local(2)code.jquery.com(1)

Website Identity

Facebook Instagram TikTok Telegram Bluesky

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Last analyzed: 19 Feb 2026 at 21:15

Historical Analysis & Change Tracking