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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sans.org

https://sans.org· First analyzed 13 Feb 2026· Updated 13 Feb 2026

Export

sans.org

Mobile

Sponsored

Hosting Provider

Incapsula Inc

IP Address

45.60.31.34

Server Location

🇺🇸 New York, United States

ASN

AS19551

Organization

Incapsula Inc

CDN

Nameservers

ns-749.awsdns-29.net.ns-1270.awsdns-30.org.ns-1746.awsdns-26.co.uk.ns-282.awsdns-35.com.

Performance

Page Speed

1.1 MB

64 requests

Image Optimization

Lazy LoadResponsiveVercel Image Optimization

0–49

50–89

90–100

Architecture Stack

Hybrid

🔀 Hybrid

Frontend

Framework

Next.js

Infrastructure

Hosting

Incapsula Inc

CDN

Technology Stack

7 Technologies Detected

Frameworks

Meta Frameworks

Other

CSS Frameworks

Analytics

Tag Managers

Other

SEO Analysis

B76/100

sans.orgsans.org

Cybersecurity Training in EMEA | SANS Institute

SANS Institute is the most trusted resource for cybersecurity training, certifications and research. Offering more than 60 courses across all practice areas,...

Description truncated.

Title Length47 chars

Recommended: 50-60 chars

Description Length219 chars

Recommended: 120-160 chars

Issues (0)

2 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

16 URLs

robots.txt

237 rules

Sitemap reference found

Sponsored

Security Score

86%Very Good

Interactive

HTTPS

WAF

158d

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

22.01.2026

Valid Until

21.07.2026

OCSP Stapling

Enabled

Subject Alternative Names (20)

*.sans.edu*.innovation.sans.org*.sans.co*.widgetxco.org*.cyberleaders.sans.orgdev.sans-foundations.com*.feedback.sans.orgsans.org+12 more

SHA-256 Fingerprint

95:B5:2F:23:98:3B:B7:D2:BE:38:08:5F:34:4E:BE:89:5D:21:7E:2E...

Upgrade to view header details

HTTP Headers

Developer Console

cache-control

🟡 257s(max-age=257, public)

content-encoding

📦 Gzip(gzip)

content-security-policy

default-src 'self'; script-src 'self' 'unsafe-inline' 'unsaf...

content-type

text/html; charset=utf-8

date

Fri, 13 Feb 2026 14:22:14 GMT

etag

"14f207ac"

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

Reject (Strictest)

MX Records (2)

mxa-002c1802.gslb.pphosted.com

mxb-002c1802.gslb.pphosted.com

Domain Information

sans.org

Domain Age

30y 6m

Created

04.08.1995

Expires

03.08.2027

Last Updated

14.07.2025

Registrar

DomainPeople, Inc.

DNSSEC

Not Enabled

Privacy & Compliance

OneTrust

Cookie Consent Banner

OneTrust

GDPR Indicators

Cookie consent banner detected

CMP: OneTrust

Typography & Readability

Aleo + Fira Sans

81/100

Readability

/30

40/40

16px · LH 1.60

Hierarchy

/20

18/25

3.5x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

2 fonts

Heading Font

Aleo

Sans56px

Body Font

Fira Sans

Sans16px

Contrast Ratio

Reading Comfort

~39 CPL

Needs attention

56px

36px

16px

14px

16px

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

✅ Optimal line spacing: 1.60 ratio ensures comfortable reading.

✅ Strong hierarchy: Headlines are 3.5x larger than body text.

✅ Good performance: Using 2 font families keeps load times fast.

✅ Smart font loading: Using font-display: swap prevents invisible text during load.

✅ Protected text on images: Using gradient for readability.

Buy on MyFonts

Business & Marketing Stack

4 Tools Detected

Enterprise

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Privacy & Cookies

OneTrustEnterprise

Cookie consent and privacy compliance tools

A/B Testing & Optimization

OptimizelyEnterprise

Experimentation and conversion optimization

Sponsored

Scripts & Styles

16 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(7)cdn.jsdelivr.net(1)cdn.optimizely.com(1)googletagmanager.com(1)cdn.cookielaw.org(1)

Website Identity

sans.org

30 years old

DomainPeople, Inc.

Social Profiles

Facebook X (Twitter)LinkedIn

Sponsored

Last analyzed: 13 Feb 2026 at 14:22

Historical Analysis & Change Tracking