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

go.gov.br

https://go.gov.br· First analyzed 20 Feb 2026· Updated 20 Feb 2026

Export

go.gov.br

Mobile

Sponsored

Hosting Provider

Secretaria de Estado de Desenvolvimento e Inovacao

IP Address

45.183.245.107

Server Location

🇧🇷 Goiânia, Brazil

ASN

AS269346

Organization

Secretaria de Estado de Desenvolvimento e Inovacao

Nameservers

lb-ns2.go.gov.br.lb-ns1.go.gov.br.

Performance

Page Speed

4.5 MB

81 requests

Image Optimization

Lazy Load

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Ghost

Technology Stack

10 Technologies Detected

Analytics

CSS Frameworks

Icon Libraries

Font Awesome Material Icons

Frameworks

Angularv12.2.17

Other

D3.js

Fonts

Google Fonts

SEO Analysis

D50/100

go.gov.brgo.gov.br

Portal Expresso

O Portal Expresso reúne serviços de todas as áreas de atuação do governo do Estado de Goiás.

Title Length15 chars

Recommended: 50-60 chars

Description Length92 chars

Recommended: 120-160 chars

Issues (1)

• Missing H1 tag - every page should have one H1

6 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

1,044 URLs

robots.txt

3 rules

Sitemap reference found

Allows all crawlers

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Security Score

21%Critical

Interactive

HTTPS

No WAF

63d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (4096 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.2

HTTP Protocol

HTTP/1.1

Valid From

24.01.2026

Valid Until

24.04.2026

Subject Alternative Names (6)

expresso.go.gov.brexpressogoias.go.gov.brwww.expresso.go.gov.brwww.expressogoias.go.gov.brwww.go.gov.brwww.goiasdigital.go.gov.br

SHA-256 Fingerprint

F3:33:8B:CF:E3:21:53:11:66:1A:18:3B:0A:5B:E6:42:37:C1:77:86...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

accept-ranges

bytes

access-control-allow-credentials

true

access-control-allow-origin

backendresptime

cache-control

🟡 0s(public, max-age=0)

connection

keep-alive

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

MX Records (1)

mailinspector-goias.lb.go.gov.br

Domain Information

go.gov.br

Domain Age

29y 8m

Created

18.06.1996

Last Updated

10.06.2025

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Data Protection Officer mentioned

Typography & Readability

Poppins

66/100

Readability

/30

32/40

14px · LH 1.60

Hierarchy

/20

8/25

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

1 font

Heading Font

Poppins

Body Font

Poppins

Sans14px

Contrast Ratio

Reading Comfort

Single Family

left aligned

14px

⚠️ Small text: 14px may be hard to read on mobile. Consider 16px+.

✅ Optimal line spacing: 1.60 ratio ensures comfortable reading.

✅ Good performance: Using 1 font families keeps load times fast.

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Business & Marketing Stack

3 Tools Detected

Advanced

Customer Support

ZendeskEnterprise

Live chat and helpdesk tools

Behavior Analytics

Google AnalyticsFree

Google Tag ManagerFree

User behavior and product analytics

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Scripts & Styles

10 Resources

Scripts

Styles

Async

Defer

Top Script Sources

google-analytics.com(2)googletagmanager.com(2)vlibras.gov.br(1)runtime.f78baeace99183890a04.js(1)polyfills.dca539f995e81847a3d3.js(1)

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Last analyzed: 20 Feb 2026 at 00:25

Historical Analysis & Change Tracking