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

fapesp.br

https://fapesp.br· First analyzed 18 Feb 2026· Updated 18 Feb 2026

Export

fapesp.br

Sponsored

Hosting Provider

FUNDAÇÃO DE AMPARO À PESQUISA DO ESTADO SÃO PAULO

IP Address

143.108.10.6

Server Location

🇧🇷 Vila Mariana, Brazil

ASN

AS1251

Organization

FUNDAÇÃO DE AMPARO À PESQUISA DO ESTADO SÃO PAULO

Server

Apache

Nameservers

ns3.ansp.br.ns2.ansp.br.ns1.ansp.br.

Performance

Page Speed

4 MB

65 requests

Image Optimization

Lazy Load

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

FUNDAÇÃO DE AMPARO À PESQUISA DO ESTADO SÃO PAULO

Technology Stack

9 Technologies Detected

Analytics

Meta Frameworks

Libraries

UI Components

CSS Frameworks

Icon Libraries

Web Servers

Customer Support

SEO Analysis

D47/100

fapesp.brfapesp.br

FAPESP - Fundação de Amparo à Pesquisa do Estado de São Paulo

Title Length61 chars

Recommended: 50-60 chars

Description Length61 chars

Recommended: 120-160 chars

Issues (2)

• Missing H1 tag - every page should have one H1
• Many images missing alt text (18/29)

6 issues found

Upgrade to view details

Crawlability

Sitemap

robots.txt

2 rules

Sponsored

Security Score

61%Fair

Interactive

HTTPS

No WAF

138d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

DigiCert Inc

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.2

HTTP Protocol

HTTP/1.1

Valid From

05.06.2025

Valid Until

06.07.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.fapesp.brfapesp.br

SHA-256 Fingerprint

43:D0:75:0D:A5:AD:FD:1A:37:DF:FC:9E:6A:B2:7D:F2:A8:DE:9B:AB...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

connection

Keep-Alive

content-security-policy

upgrade-insecure-requests

content-type

text/html; charset=UTF-8

date

Wed, 18 Feb 2026 02:20:56 GMT

keep-alive

timeout=2, max=100

server

Apache

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (4)

fapex00.fapesp.br

fapex01.fapesp.br

fapex10.fapesp.br

fapex11.fapesp.br

Domain Information

fapesp.br

Domain Age

36y 10m

Created

18.04.1989

Last Updated

23.04.2025

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

Typography & Readability

Helvetica

73/100

Readability

/30

40/40

16px · LH 1.40

Hierarchy

/20

8/25

WCAG

/25

15/15

Contrast: undefined

Performance

/25

20/20

System fonts

Heading Font

Helvetica

Sans

Body Font

Helvetica

Sans16px

Contrast Ratio

Reading Comfort

~40 CPL

Needs attention

20px

15px

16px

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

✅ Optimal line spacing: 1.40 ratio ensures comfortable reading.

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

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

⚠️ Cramped layout: 16 elements lack adequate spacing.

⚠️ Inconsistent alignment: Mix of left/center/right creates visual noise.

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

20 Resources

Scripts

Styles

Async

Defer

Top Script Sources

fapesp.br(10)googletagmanager.com(1)vlibras.gov.br(1)

Sponsored

Last analyzed: 18 Feb 2026 at 02:21

Historical Analysis & Change Tracking