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

23andme.com

https://23andme.com· First analyzed 17 Feb 2026· Updated 17 Feb 2026

Export

23andme.com

Sponsored

Hosting Provider

Cloudflare

cloudflare.com

IP Address

104.16.183.73

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

alina.ns.cloudflare.com.jason.ns.cloudflare.com.

Performance

Page Speed

6.3 MB

75 requests

Image Optimization

Lazy LoadResponsive

0–49

50–89

90–100

Architecture Stack

Hybrid

⚙️ SSR

Frontend

Framework

Next.js

Infrastructure

Hosting

Cloudflare

CDN

Cloudflare

Technology Stack

3 Technologies Detected

Meta Frameworks

Next.js

CSS Frameworks

Tailwind CSS

CDN

Cloudflare

SEO Analysis

B72/100

23andme.com23andme.com

DNA Genetic Testing For Health, Ancestry And More - 23andMe Europe

23andMe offers DNA testing with the most comprehensive ancestry breakdown, personalized health insights and more.

Title Length66 chars

Recommended: 50-60 chars

Description Length113 chars

Recommended: 120-160 chars

Issues (1)

• Many images missing alt text (26/48)

3 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

713 URLs

robots.txt

30 rules

Sitemap reference found

Sponsored

Security Score

66%Fair

Interactive

HTTPS

WAF

47d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Google Trust Services

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-256

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

05.01.2026

Valid Until

05.04.2026

OCSP Stapling

Enabled

Subject Alternative Names (9)

23andme.com*.23andme.com*.education.23andme.com*.medical.23andme.com*.research.23andme.com*.therapeutics.23andme.com*.mg.23andme.com*.mg-system.23andme.com+1 more

SHA-256 Fingerprint

2D:C6:28:37:ED:FE:26:64:3E:46:BC:C2:3F:C3:1C:E8:88:7E:03:BE...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

cache-control

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

cf-cache-status

DYNAMIC

cf-ray🇩🇪 Frankfurt

9cf111627c8735f3-FRA

content-encoding

📦 Gzip(gzip)

content-type

text/html; charset=utf-8

date

Tue, 17 Feb 2026 00:11:31 GMT

Good Warning Issue

Email Infrastructure

Google Workspace

Score

SPF

DKIM

DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (5)

alt3.aspmx.l.google.com

aspmx.l.google.com

alt2.aspmx.l.google.com

alt4.aspmx.l.google.com

+1 more

Domain Information

23andme.com

Domain Age

19y 10m

Created

02.04.2006

Expires

02.04.2027

Last Updated

01.03.2025

Registrar

MarkMonitor Inc.

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Typography & Readability

Rialta

71/100

Readability

/30

32/40

14px · LH 1.43

Hierarchy

/20

18/25

5.71x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

1 font

Heading Font

Rialta

Sans80px

Body Font

Rialta

Sans14px

Contrast Ratio

Reading Comfort

~39 CPL

Needs attention

80px

40px

21px

14px

⚠️ Small text: 14px may be hard to read on mobile. Consider 16px+.

✅ Optimal line spacing: 1.43 ratio ensures comfortable reading.

✅ Strong hierarchy: Headlines are 5.7x 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.

✅ Protected text on images: Using gradient for readability.

Buy on MyFonts

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

28 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(20)

Website Identity

23andme.com

19 years old

MarkMonitor Inc.📧 Google Workspace

Social Profiles

Facebook X (Twitter)Instagram LinkedIn YouTube TikTok

Sponsored

Last analyzed: 17 Feb 2026 at 00:11

Historical Analysis & Change Tracking