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

ufsc.br

https://ufsc.br· First analyzed 14 Feb 2026· Updated 14 Feb 2026

Export

ufsc.br

Mobile

Sponsored

Hosting Provider

Universidade Federal de Santa Catarina

IP Address

150.162.2.10

Server Location

🇧🇷 Florianópolis, Brazil

ASN

AS263300

Organization

Universidade Federal de Santa Catarina

Server

Nginx

Nameservers

slave1.ufsc.br.slave2.ufsc.br.

Performance

Page Speed

867 KB

118 requests

Image Optimization

Responsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

WordPressv4.7.31

cms

brasilGovv1.0

by SeTIC (Adaptação de Leonardo Faria)

View Theme

Technology Stack

14 Technologies Detected

Plugins

Patrocinio All In One Event Calendar

Contact Form 7

Email Sharity Auto Thickbox Youtube Channel Gallery

Meta Frameworks

Libraries

UI Components

Other

CSS Frameworks

Fonts

Web Servers

SEO Analysis

D44/100

ufsc.brufsc.br

Universidade Federal de Santa Catarina

No description available for this page.

Title Length38 chars

Recommended: 50-60 chars

Description Length0 chars

Recommended: 120-160 chars

Issues (2)

• Missing meta description - important for click-through rates
• Many images missing alt text (66/82)

7 issues found

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Security Score

56%Poor

Interactive

HTTPS

No WAF

81d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-384

TLS Version

TLSv1.2

HTTP Protocol

HTTP/1.1

Valid From

06.02.2026

Valid Until

07.05.2026

Subject Alternative Names (2)

*.ufsc.brufsc.br

SHA-256 Fingerprint

5B:29:73:CF:B4:96:45:B1:F2:6F:A6:69:19:9C:F3:DA:C8:BB:2C:4A...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

access-control-allow-origin

cache-control

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

connection

keep-alive

content-encoding

📦 Gzip(gzip)

content-security-policy

upgrade-insecure-requests

content-type

text/html; charset=UTF-8

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (1)

mx.mail.ufsc.br

Domain Information

ufsc.br

Domain Age

30y 1m

Created

01.01.1996

Last Updated

26.07.2022

DNSSEC

Not Enabled

Typography & Readability

Helvetica

63/100

Readability

/30

20/40

12px · LH 1.50

Hierarchy

/20

25/25

2.25x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

2 fonts

Heading Font

Helvetica

Sans27px

Body Font

Helvetica

Sans12px

Contrast Ratio

Reading Comfort

~39 CPL

Needs attention

27px

14px

18px

12px

❌ Critical: 12px body text is too small. Increase to at least 14px.

✅ Optimal line spacing: 1.50 ratio ensures comfortable reading.

✅ Strong hierarchy: Headlines are 2.2x larger than body text.

✅ Good performance: Using 2 font families keeps load times fast.

✅ Consistent design: Single font family with weight variations is a modern best practice.

⚠️ Cramped layout: 22 elements lack adequate spacing.

GGoogle Fonts

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

22 Resources

Scripts

Styles

Async

Defer

Top Script Sources

ufsc.br(11)local(1)

Website Identity

Facebook X (Twitter)Instagram YouTube

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Last analyzed: 14 Feb 2026 at 11:13

Historical Analysis & Change Tracking