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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isc2.org

https://isc2.org· First analyzed 17 Feb 2026· Updated 17 Feb 2026

Export

isc2.org

Sponsored

Hosting Provider

Anycast Worldwide

IP Address

159.60.133.133

Server Location

🇺🇸 Seattle, United States

ASN

AS35280

Organization

Anycast Worldwide

Server

volt-adc

CDN

Azure Cdn

Nameservers

ns2-01.azure-dns.net.ns3-01.azure-dns.org.ns4-01.azure-dns.info.ns1-01.azure-dns.com.

Performance

Page Speed

1.4 MB

68 requests

Image Optimization

Lazy Load

0–49

50–89

90–100

Architecture Stack

Hybrid

⚡ SSG

Frontend

Framework

Next.js

Styling

Tailwind CSS

CMS

Sitecore

Infrastructure

Hosting

Anycast Worldwide

CDN

Azure Cdn

Technology Stack

5 Technologies Detected

Meta Frameworks

CSS Frameworks

Analytics

Tag Managers

Payments

SEO Analysis

A80/100

isc2.orgisc2.org

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Join a cybersecurity association that supports members, provides world-renowned certifications and advocates for the profession. Learn more about ISC2.

Title Length60 chars

Recommended: 50-60 chars

Description Length151 chars

Recommended: 120-160 chars

Issues (0)

3 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

robots.txt

13 rules

Sitemap reference found

Sponsored

Security Score

65%Fair

Critical / Transactional

HTTPS

No WAF

29d

Certificate Details

Type

Extended Validation (EV)

Certificate Authority

DigiCert Inc

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

07.03.2025

Valid Until

18.03.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

www.isc2.orgisc2.org

SHA-256 Fingerprint

FE:AF:71:9A:D9:8C:85:A0:2A:65:1D:A2:2B:3B:9E:B0:86:5F:34:7E...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

age

cache-control

🟡 0s(public, max-age=0, must-revalidate)

content-encoding

⚡ Brotli(br)

content-security-policy

default-src 'self' 'unsafe-inline' 'unsafe-eval' *.sitecorec...

content-type

text/html; charset=utf-8

date

Tue, 17 Feb 2026 03:09:56 GMT

Good Warning Issue

Email Infrastructure

Mimecast

Score

100

SPF

DKIM

DMARC

DMARC Policy

Reject (Strictest)

MX Records (2)

us-smtp-inbound-2.mimecast.com

us-smtp-inbound-1.mimecast.com

Domain Information

isc2.org

Domain Age

29y 3m

Created

12.11.1996

Expires

11.11.2026

Last Updated

26.12.2025

Registrar

GoDaddy.com, LLC

DNSSEC

Not Enabled

Privacy & Compliance

OneTrust

Cookie Consent Banner

OneTrust

GDPR Indicators

Cookie consent banner detected

CMP: OneTrust

Typography & Readability

__Open_Sans_3cf7d1

81/100

Readability

/30

40/40

16px · LH 1.44

Hierarchy

/20

18/25

4x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

2 fonts

Heading Font

__Open_Sans_3cf7d1

Sans64px

Body Font

__Open_Sans_3cf7d1

Sans16px

Contrast Ratio

Reading Comfort

~38 CPL

Needs attention

64px

40px

24px

16px

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

✅ Optimal line spacing: 1.44 ratio ensures comfortable reading.

✅ Strong hierarchy: Headlines are 4.0x larger than body text.

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

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

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

Buy on MyFonts

Business & Marketing Stack

3 Tools Detected

Advanced

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Privacy & Cookies

OneTrustEnterprise

Cookie consent and privacy compliance tools

Sponsored

Scripts & Styles

18 Resources

Scripts

Styles

Async

Defer

Top Script Sources

isc2.org(10)d35vb5cccm4xzp.cloudfront.net(4)d1mj578wat5n4o.cloudfront.net(1)js.stripe.com(1)cdn.cookielaw.org(1)

Website Identity

Facebook X (Twitter)LinkedIn YouTube Telegram

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Last analyzed: 17 Feb 2026 at 03:10

Historical Analysis & Change Tracking