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

scielo.org

https://scielo.org· First analyzed 17 Feb 2026· Updated 17 Feb 2026

Export

scielo.org

Mobile

Sponsored

Hosting Provider

FUNDAÇÃO DE AMPARO À PESQUISA DO ESTADO SÃO PAULO

IP Address

200.136.72.41

Server Location

🇧🇷 São Paulo, Brazil

ASN

AS1251

Organization

FUNDAÇÃO DE AMPARO À PESQUISA DO ESTADO SÃO PAULO

Server

Nginx

CDN

Bunny

Nameservers

kiki.bunny.net.coco.bunny.net.

Performance

Page Speed

607 KB

54 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Framework

jQuery

Styling

Tailwind CSS

CMS

WordPress

Infrastructure

Hosting

FUNDAÇÃO DE AMPARO À PESQUISA DO ESTADO SÃO PAULO

CDN

Bunny

Technology Stack

7 Technologies Detected

Libraries

UI Components

CSS Frameworks

Icon Libraries

Web Servers

Customer Support

Security

SEO Analysis

D47/100

scielo.orgscielo.org

Home

No description available for this page.

Title Length4 chars

Recommended: 50-60 chars

Description Length0 chars

Recommended: 120-160 chars

Issues (1)

• Missing meta description - important for click-through rates

6 issues found

Upgrade to view details

Crawlability

Sitemap

robots.txt

32 rules

Allows all crawlers

Sponsored

Security Score

64%Fair

Interactive

HTTPS

No WAF

266d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

GlobalSign nv-sa

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

10.10.2025

Valid Until

11.11.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.scielo.orgscielo.org

SHA-256 Fingerprint

E2:5F:EA:5C:D0:C7:FD:49:44:50:25:3C:AF:B1:86:7D:D0:86:6D:97...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

content-encoding

📦 Gzip(gzip)

content-language

content-type

text/html; charset=utf-8

cross-origin-opener-policy

same-origin

date

Tue, 17 Feb 2026 22:55:22 GMT

referrer-policy

same-origin

Good Warning Issue

Email Infrastructure

Google Workspace

Score

SPF

DKIM

DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (5)

aspmx3.googlemail.com

aspmx.l.google.com

aspmx2.googlemail.com

alt1.aspmx.l.google.com

+1 more

Domain Information

scielo.org

Domain Age

26y 11m

Created

13.03.1999

Expires

13.03.2027

Last Updated

11.02.2026

Registrar

Amazon Registrar, Inc.

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Cookie consent banner detected

Typography & Readability

Noto Sans + sans-serif

86/100

Readability

/30

40/40

16px · LH 1.60

Hierarchy

/20

25/25

2.5x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

1 font

Heading Font

Noto Sans

Sans40px

Body Font

sans-serif

Sans16px

Contrast Ratio

Reading Comfort

~42 CPL

Needs attention

40px

17px

16px

✅ Excellent readability: 16px body text is ideal for all devices.

✅ Optimal line spacing: 1.60 ratio ensures comfortable reading.

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

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

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

⚠️ Cramped layout: 32 elements lack adequate spacing.

Buy on MyFonts

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

9 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(5)gstatic.com(1)google.com(1)static.scielo.org(1)

Website Identity

YouTube

Sponsored

Last analyzed: 17 Feb 2026 at 22:55

Historical Analysis & Change Tracking