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

df.gov.br

https://df.gov.br· First analyzed 17 Feb 2026· Updated 17 Feb 2026

Export

df.gov.br

Sponsored

Hosting Provider

SECRETARIA DE ESTADO DE ECONOMIA DO DF - SEEC/DF

IP Address

131.72.221.22

Server Location

🇧🇷 Brasília, Brazil

ASN

AS61738

Organization

SECRETARIA DE ESTADO DE ECONOMIA DO DF - SEEC/DF

Server

Apache

Nameservers

dns1.gdfnet.df.gov.br.dns2.df.gov.br.

Performance

Page Speed

2.9 MB

38 requests

Image Optimization

Lazy Load

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Framework

jQuery

Styling

Bootstrap

CMS

WordPressv6.7.1

Infrastructure

Hosting

SECRETARIA DE ESTADO DE ECONOMIA DO DF - SEEC/DF

Technology Stack

6 Technologies Detected

CSS Frameworks

Analytics

Libraries

Web Servers

SEO Analysis

D50/100

df.gov.brdf.gov.br

GOVERNO DO DISTRITO FEDERAL

Site institucional do Governo do Distrito Federal

Title Length27 chars

Recommended: 50-60 chars

Description Length49 chars

Recommended: 120-160 chars

Issues (0)

8 issues found

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Crawlability

Sitemap

Type: index

5 URLs

robots.txt

15 rules

Sitemap reference found

Sponsored

Security Score

21%Critical

Interactive

HTTPS

No WAF

255d

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

30.10.2025

Valid Until

30.10.2026

OCSP Stapling

Enabled

Subject Alternative Names (1)

www.df.gov.br

SHA-256 Fingerprint

06:28:28:8D:69:12:0E:D1:30:66:D5:55:66:5E:92:45:10:E6:C6:22...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

cache-control

🔴 No Cache(no-store, no-cache, must-revalidate)

connection

Keep-Alive

content-encoding

📦 Gzip(gzip)

content-length

12497

content-type

text/html; charset=UTF-8

date

Tue, 17 Feb 2026 08:55:10 GMT

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (3)

smtp054.gdfnet.df.gov.br

smtp053.gdfnet.df.gov.br

smtp051.gdfnet.df.gov.br

Domain Information

df.gov.br

Domain Age

29y 6m

Created

15.08.1996

Last Updated

05.04.2024

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

Typography & Readability

Titillium Web + sans-serif

54/100

Readability

/30

25/40

35px · LH 1.00

Hierarchy

/20

11/25

0.63x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

10/20

3 fonts

Heading Font

Titillium Web

Sans22px

Body Font

sans-serif

Sans35px

Contrast Ratio

Reading Comfort

Single Font Family

left aligned

22px

36px

22px

16px

35px

✅ Excellent readability: 35px body text is ideal for all devices.

⚠️ Tight line spacing (1.00). Consider 1.4-1.6 for better readability.

⚠️ Weak hierarchy: Headlines should be at least 2x body size for clear visual structure.

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

✅ Protected text on images: Using gradient for readability.

⚠️ Cramped layout: 12 elements lack adequate spacing.

Buy on MyFonts

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

Google Tag ManagerFree

User behavior and product analytics

Sponsored

Scripts & Styles

13 Resources

Scripts

Styles

Async

Defer

Top Script Sources

df.gov.br(4)gstatic.com(1)adgdf.df.gov.br(1)google.com(1)googletagmanager.com(1)

Website Identity

Facebook X (Twitter)Instagram YouTube

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Last analyzed: 17 Feb 2026 at 08:55

Historical Analysis & Change Tracking