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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nintendo.com

https://nintendo.com· First analyzed 11 Feb 2026· Updated 11 Feb 2026

Export

nintendo.com

Mobile

Sponsored

Hosting Provider

Nintendo Of America inc

IP Address

192.159.190.35

Server Location

🇺🇸 Seattle, United States

ASN

AS11278

Organization

Nintendo Of America inc

Server

AmazonS3

CDN

Fastly

Nameservers

ns-1047.awsdns-02.org.ns-1908.awsdns-46.co.uk.ns-431.awsdns-53.com.ns-983.awsdns-58.net.

Performance

Page Speed

15 KB

13 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Nintendo Of America inc

CDN

Fastly

Technology Stack

2 Technologies Detected

CSS Frameworks

Tailwind CSS

Fonts

Google Fonts

SEO Analysis

B70/100

nintendo.comnintendo.com

Nintendo Region Selector - Official Site

No description available for this page.

Title Length40 chars

Recommended: 50-60 chars

Description Length0 chars

Recommended: 120-160 chars

Issues (1)

• Missing meta description - important for click-through rates

3 issues found

Upgrade to view details

Sponsored

Security Score

76%Good

Static / Informational

HTTPS

No WAF

148d

Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

accept-ranges

bytes

age

cache-control

🟡 1s(max-age=1)

content-encoding

⚡ Brotli(br)

content-length

2414

content-type

text/html

Good Warning Issue

Typography & Readability

Noto Sans JP

54/100

Readability

/30

25/40

21px · LH 1.19

Hierarchy

/20

8/25

0.76x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

2 fonts

Heading Font

Noto Sans JP

Sans16px

Body Font

Noto Sans JP

Sans21px

Contrast Ratio

Reading Comfort

~54 CPL

Optimal (45–75)

16px

27px

21px

Major Sixth

Scale

✅ Excellent readability: 21px body text is ideal for all devices.

⚠️ Tight line spacing (1.19). Consider 1.4-1.6 for better readability.

⚠️ Weak hierarchy: Headlines should be at least 2x body size for clear visual structure.

✅ 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.

GGoogle Fonts

Sponsored

Scripts & Styles

9 Resources

Scripts

Styles

Async

Defer

Top Script Sources

.(1)

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Last analyzed: 11 Feb 2026 at 05:45

Historical Analysis & Change Tracking