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.

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ebc.com.br

https://ebc.com.br· First analyzed 13 Feb 2026· Updated 13 Feb 2026

Export

ebc.com.br

Mobile

Sponsored

Hosting Provider

Rede Nacional de Ensino e Pesquisa

IP Address

200.17.0.25

Server Location

🇧🇷 Brasília, Brazil

ASN

AS1916

Organization

Rede Nacional de Ensino e Pesquisa

Server

Nginx

CDN

Akamai

WAF

Akamai

Nameservers

ns1.ebc.com.br.ns2.ebc.com.br.nsrj01.ebc.com.br.

Performance

Page Speed

742 KB

94 requests

Image Optimization

Lazy Load

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Rede Nacional de Ensino e Pesquisa

CDN

Akamai

Technology Stack

9 Technologies Detected

Analytics

Libraries

UI Components

CSS Frameworks

Web Servers

Languages

Customer Support

SEO Analysis

B70/100

ebc.com.brebc.com.br

EBC - Empresa Brasil de Comunicação

No description available for this page.

Title Length35 chars

Recommended: 50-60 chars

Description Length0 chars

Recommended: 120-160 chars

Issues (1)

• Missing meta description - important for click-through rates

2 issues found

Upgrade to view details

Crawlability

Sitemap

robots.txt

70 rules

Sponsored

Security Score

36%Critical

Interactive

HTTPS

WAF

73d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/1.1

Valid From

27.01.2026

Valid Until

27.04.2026

Subject Alternative Names (20)

agenciabrasil.ebc.com.bragenciagov.ebc.com.bratendimento.ebc.com.braudios.ebc.com.brcanaleducacao.ebc.com.brcanalgov.ebc.com.brcdn.ebc.com.brchamados.ebc.com.br+12 more

SHA-256 Fingerprint

C9:54:A6:1D:2E:60:CC:80:59:3B:7C:B1:AB:C7:BE:FB:D1:67:E0:CD...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

connection

keep-alive, Transfer-Encoding

content-encoding

📦 Gzip(gzip)

content-language

en-us

content-type

text/html;charset=utf-8

date

Fri, 13 Feb 2026 18:22:28 GMT

expires

Fri, 13 Feb 2026 18:22:28 GMT

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (1)

smtp01.ebc.com.br

Domain Information

ebc.com.br

Domain Age

19y 3m

Created

30.10.2006

Expires

30.10.2028

Last Updated

21.07.2025

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Data Protection Officer mentioned

Typography & Readability

Tipo Brasil Rounded

73/100

Readability

/30

20/40

12px · LH 1.43

Hierarchy

/20

25/25

2.5x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

20/20

System fonts

Heading Font

Tipo Brasil Rounded

Sans30px

Body Font

Tipo Brasil Rounded

Sans12px

Contrast Ratio

Reading Comfort

~45 CPL

Optimal (45–75)

30px

12px

Minor Second

Scale

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

✅ Optimal line spacing: 1.43 ratio ensures comfortable reading.

✅ Strong hierarchy: Headlines are 2.5x larger than body text.

✅ Excellent performance: System fonts eliminate font loading delays (better LCP).

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

✅ Protected text on images: Using gradient for readability.

Buy on MyFonts

Business & Marketing Stack

3 Tools Detected

Growing

Behavior Analytics

Microsoft ClarityFree

Google AnalyticsFree

Google Tag ManagerFree

User behavior and product analytics

Sponsored

Scripts & Styles

19 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(4)cdn.jsdelivr.net(2)ebc.com.br(2)scripts.clarity.ms(1)clarity.ms(1)

Website Identity

Facebook X (Twitter)Instagram LinkedIn TikTok

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Last analyzed: 13 Feb 2026 at 18:23

Historical Analysis & Change Tracking