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

unb.br

https://unb.br· First analyzed 16 Feb 2026· Updated 16 Feb 2026

Export

unb.br

Sponsored

Hosting Provider

Fundação Universidade de Brasília

IP Address

164.41.102.70

Server Location

🇧🇷 Brasília, Brazil

ASN

AS21506

Organization

Fundação Universidade de Brasília

Server

Nginx

Nameservers

ns.gigacandanga.net.br.ns2.gigacandanga.net.br.dns2.unb.br.dns1.unb.br.+1 more

Performance

Page Speed

1.9 MB

121 requests

Image Optimization

Lazy Load

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Framework

jQuery

Styling

Bootstrap

CMS

Joomla!

Infrastructure

Hosting

Fundação Universidade de Brasília

Technology Stack

9 Technologies Detected

CSS Frameworks

Analytics

Meta Frameworks

Libraries

UI Components

Web Servers

Customer Support

SEO Analysis

D58/100

unb.brunb.br

Universidade de Brasília - Início

A Universidade de Brasília é uma Instituição Federal de Ensino Superior brasileira. Pública e gratuita, oferta ensino de qualidade, desenvolve pesquisas de p...

Description truncated.

Title Length33 chars

Recommended: 50-60 chars

Description Length219 chars

Recommended: 120-160 chars

Issues (0)

6 issues found

Upgrade to view details

Crawlability

Sitemap

robots.txt

15 rules

Sponsored

Security Score

20%Critical

No SSL

No WAF

N/A

Upgrade to view header details

HTTP Headers

Developer Console

cache-control

🔴 No Cache(no-store, no-cache, must-revalidate, post-check=0, pre-check...)

connection

keep-alive

content-encoding

📦 Gzip(gzip)

content-length

21555

content-type

text/html; charset=utf-8

date

Mon, 16 Feb 2026 15:41:03 GMT

Good Warning Issue

Email Infrastructure

Microsoft 365

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (1)

unb-br.mail.protection.outlook.com

Domain Information

unb.br

Domain Age

30y 1m

Created

01.01.1996

Last Updated

09.06.2025

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

Typography & Readability

liberation_sansregular

55/100

Readability

/30

25/40

16px · LH 1.10

Hierarchy

/20

25/25

2x ratio

WCAG

/25

5/15

Contrast: undefined

Performance

/25

13/20

1 font

Heading Font

liberation_sansregular

Sans32px

Body Font

liberation_sansregular

Sans16px

Contrast Ratio

Reading Comfort

Single Font Family

left aligned

32px

24px

14px

24px

16px

✅ Excellent readability: 16px body text is ideal for all devices.

⚠️ Tight line spacing (1.10). Consider 1.4-1.6 for better readability.

✅ 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.

⚠️ Risky: Text appears on background images without overlay protection.

Buy on MyFonts

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

28 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(14)cse.google.com(2)google-analytics.com(1)cdn.jsdelivr.net(1)cdn.userway.org(1)

Website Identity

Facebook X (Twitter)Instagram YouTube

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Last analyzed: 16 Feb 2026 at 15:41

Historical Analysis & Change Tracking