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

es.gov.br

https://es.gov.br· First analyzed 19 Feb 2026· Updated 19 Feb 2026

Export

es.gov.br

Sponsored

Hosting Provider

Inst. de Tec. da Informação e Comunicação do ES

IP Address

201.62.44.147

Server Location

🇧🇷 Vitória, Brazil

ASN

AS53203

Organization

Inst. de Tec. da Informação e Comunicação do ES

Server

Microsoft IIS

Nameservers

ns4.es.gov.br.ns3.es.gov.br.ns1.es.gov.br.

Performance

Page Speed

1.6 MB

75 requests

Image Optimization

Lazy Load

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Framework

jQuery

Styling

Bootstrap

Infrastructure

Hosting

Inst. de Tec. da Informação e Comunicação do ES

Technology Stack

14 Technologies Detected

Analytics

Frameworks

Libraries

CSS Frameworks

Icon Libraries

Font Awesome Ionicons

Other

Leaflet

Other

Modernizr

Web Servers

Microsoft IISv10.0

SEO Analysis

D47/100

es.gov.bres.gov.br

Governo ES

No description available for this page.

Title Length10 chars

Recommended: 50-60 chars

Description Length0 chars

Recommended: 120-160 chars

Issues (1)

• Missing meta description - important for click-through rates

7 issues found

Upgrade to view details

Crawlability

Sitemap

robots.txt

83 rules

Allows all crawlers

Sponsored

Security Score

36%Critical

Interactive

HTTPS

No WAF

71d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

ECDSA (secp384r1) (384 bit)

Signature

ECDSA with SHA-384

TLS Version

TLSv1.2

HTTP Protocol

HTTP/2

Valid From

01.02.2026

Valid Until

02.05.2026

Subject Alternative Names (1)

www.es.gov.br

SHA-256 Fingerprint

02:AB:C6:67:17:4A:2C:4A:48:0E:51:48:B8:9C:0E:EE:7E:95:DF:65...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

cache-control

🟣 Private(private)

content-encoding

⚡ Brotli(br)

content-type

text/html; charset=utf-8

date

Thu, 19 Feb 2026 18:32:30 GMT

etag

66fd3c8f7760467186006b39bcf7b53b

server

Microsoft-IIS/10.0

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

MX Records (2)

gw1.correio.es.gov.br

gw2.correio.es.gov.br

Domain Information

es.gov.br

Domain Age

29y 3m

Created

01.11.1996

Last Updated

08.12.2025

DNSSEC

Not Enabled

Privacy & Compliance

Cookiebot

Cookie Consent Banner

Cookiebot

GDPR Indicators

Cookie consent banner detected

CMP: Cookiebot

Typography & Readability

Arial

76/100

Readability

/30

32/40

14px · LH 1.43

Hierarchy

/20

21/25

2.57x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

2 fonts

Heading Font

Arial

Sans36px

Body Font

Arial

Sans14px

Contrast Ratio

Reading Comfort

~46 CPL

Optimal (45–75)

36px

27px

18px

14px

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

✅ Optimal line spacing: 1.43 ratio ensures comfortable reading.

✅ Strong hierarchy: Headlines are 2.6x 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.

✅ Optimal line length: ~46 characters per line is comfortable to read.

Buy on MyFonts

Business & Marketing Stack

5 Tools Detected

Enterprise

Behavior Analytics

Google AnalyticsFree

Google Tag ManagerFree

User behavior and product analytics

Advertising

Facebook PixelMid-Market

Ad platforms and retargeting pixels

Social Media

Facebook SDKFree

Twitter/X WidgetsFree

Social widgets and sharing tools

Sponsored

Scripts & Styles

30 Resources

Scripts

Styles

Async

Defer

Top Script Sources

cdn.es.gov.br(11)googletagmanager.com(3)local(3)connect.facebook.net(2)platform.twitter.com(1)

Website Identity

Facebook X (Twitter)Instagram YouTube

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Last analyzed: 19 Feb 2026 at 18:33

Historical Analysis & Change Tracking