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

ibge.gov.br

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

Export

ibge.gov.br

Mobile

Sponsored

Hosting Provider

Fundacao Inst Bras De Geografia E Estatistica Ibge

IP Address

170.84.40.233

Server Location

🇧🇷 Rio de Janeiro, Brazil

ASN

AS265020

Organization

Fundacao Inst Bras De Geografia E Estatistica Ibge

Nameservers

ns1.ibge.gov.br.ns2.ibge.gov.br.

Performance

Page Speed

2.6 MB

83 requests

Image Optimization

Lazy Load

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Joomla!

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

8 Technologies Detected

Analytics

Libraries

CSS Frameworks

Icon Libraries

Fonts

Tag Managers

SEO Analysis

C67/100

ibge.gov.bribge.gov.br

IBGE | Portal do IBGE | IBGE

No description available for this page.

Title Length29 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

robots.txt

58 rules

Sponsored

Security Score

21%Critical

Interactive

HTTPS

No WAF

46d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

Sectigo Limited

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.2

HTTP Protocol

HTTP/1.1

Valid From

01.04.2025

Valid Until

01.04.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.ibge.gov.bribge.gov.br

SHA-256 Fingerprint

46:D3:ED:AE:CB:1F:11:50:15:A2:44:1D:FA:D7:51:28:C7:79:D9:58...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

access-control-allow-headers

x-requested-with, Content-Type, origin, authorization, accep...

access-control-allow-methods

POST, GET, OPTIONS

access-control-allow-origin

cache-control

🔴 No Cache(no-cache, max-age=1800)

connection

Keep-Alive

content-encoding

📦 Gzip(gzip)

Good Warning Issue

Email Infrastructure

Microsoft 365

Score

SPF

DKIM

DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (1)

ibge-gov-br.mail.protection.outlook.com

Domain Information

ibge.gov.br

Domain Age

30y 1m

Created

01.01.1996

Last Updated

03.10.2025

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

Typography & Readability

Rawline

66/100

Readability

/30

32/40

15px · LH 1.53

Hierarchy

/20

13/25

1.6x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

2 fonts

Heading Font

Rawline

Sans24px

Body Font

Rawline

Sans15px

Contrast Ratio

Reading Comfort

~37 CPL

Needs attention

24px

35px

16px

15px

Minor Second

Scale

⚠️ Small text: 15px may be hard to read on mobile. Consider 16px+.

✅ Optimal line spacing: 1.53 ratio ensures comfortable reading.

✅ Good hierarchy: Clear distinction between headlines and 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.

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

GGoogle Fonts Buy on MyFonts

Business & Marketing Stack

3 Tools Detected

Growing

Behavior Analytics

Microsoft ClarityFree

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

29 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(7)googletagmanager.com(5)ibge.gov.br(4)google-analytics.com(2)scripts.clarity.ms(1)

Website Identity

Facebook X (Twitter)Instagram TikTok Bluesky

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Last analyzed: 14 Feb 2026 at 11:11

Historical Analysis & Change Tracking