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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scielo.org.mx

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

Export

scielo.org.mx

Sponsored

Hosting Provider

Universidad Nacional Autonoma de Mexico

IP Address

132.248.9.5

Server Location

🇲🇽 Mexico City, Mexico

ASN

AS278

Organization

Universidad Nacional Autonoma de Mexico

Server

Nginx

Nameservers

ns3.unam.mx.ns5.unam.mx.ns4.unam.mx.ns1.unam.mx.+1 more

Performance

Page Speed

15 KB

12 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Universidad Nacional Autonoma de Mexico

Technology Stack

6 Technologies Detected

Analytics

Meta Frameworks

Web Servers

Languages

SEO Analysis

F29/100

scielo.org.mxscielo.org.mx

SciELO - Scientific Electronic Library Online

No description available for this page.

Title Length45 chars

Recommended: 50-60 chars

Description Length0 chars

Recommended: 120-160 chars

Issues (3)

• Missing meta description - important for click-through rates
• Missing H1 tag - every page should have one H1
• Missing viewport meta tag - page may not be mobile-friendly

8 issues found

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Security Score

21%Critical

Interactive

HTTPS

No WAF

28d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-384

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

18.12.2025

Valid Until

18.03.2026

Subject Alternative Names (2)

scielo.org.mxwww.scielo.org.mx

SHA-256 Fingerprint

FB:B1:C6:E5:8A:92:71:DC:CE:90:35:A5:D4:48:7B:21:E5:10:79:C9...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

cache-control

🔴 No Cache(no-store, no-cache, must-revalidate, post-check=0, pre-check...)

content-type

text/html

date

Tue, 17 Feb 2026 20:18:50 GMT

expires

Thu, 19 Nov 1981 08:52:00 GMT

pragma

no-cache

server

nginx

Good Warning Issue

Domain Information

scielo.org.mx

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

Typography & Readability

Verdana

44/100

Readability

/30

10/40

13px · LH --

Hierarchy

/20

8/25

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

1 font

Heading Font

Verdana

Body Font

Verdana

Sans13px

Contrast Ratio

Reading Comfort

~55 CPL

Optimal (45–75)

13px

❌ Critical: 13px body text is too small. Increase to at least 14px.

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

✅ Optimal line length: ~55 characters per line is comfortable to read.

Buy on MyFonts

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

Google Tag ManagerFree

User behavior and product analytics

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Scripts & Styles

2 Resources

Scripts

Styles

Async

Defer

Top Script Sources

googletagmanager.com(1)ssl.google-analytics.com(1)

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Last analyzed: 17 Feb 2026 at 20:19

Historical Analysis & Change Tracking