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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odn.ne.jp

https://odn.ne.jp· First analyzed 17 Feb 2026· Updated 17 Feb 2026

Export

odn.ne.jp

Sponsored

Hosting Provider

SoftBank Corp.

IP Address

143.90.129.12

Server Location

🇯🇵 Chiyoda City, Japan

ASN

AS4725

Organization

SoftBank Corp.

Server

Apache

Nameservers

ns4.odn.ne.jp.ns2.odn.ne.jp.

Performance

Page Speed

299 KB

57 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

SoftBank Corp.

Technology Stack

4 Technologies Detected

Analytics

CSS Frameworks

Web Servers

SEO Analysis

F29/100

odn.ne.jpodn.ne.jp

ODN

ソフトバンクのインターネットサービスプロバイダODNのご案内

Title Length3 chars

Recommended: 50-60 chars

Description Length30 chars

Recommended: 120-160 chars

Issues (2)

• Missing H1 tag - every page should have one H1
• Missing viewport meta tag - page may not be mobile-friendly

9 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

709 URLs

robots.txt

3 rules

Sitemap reference found

Sponsored

Security Score

20%Critical

No SSL

No WAF

N/A

Upgrade to view header details

HTTP Headers

Developer Console

accept-ranges

bytes

connection

Keep-Alive

content-type

text/html

date

Tue, 17 Feb 2026 05:07:30 GMT

keep-alive

timeout=5, max=100

server

Apache

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (1)

sbkk.in.tmems-jp.trendmicro.com

Domain Information

odn.ne.jp

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Typography & Readability

Times New Roman

45/100

Readability

/30

10/40

11px · LH --

Hierarchy

/20

25/25

2.91x ratio

WCAG

/25

5/15

Contrast: undefined

Performance

/25

20/20

System fonts

Heading Font

Times New Roman

Serif32px

Body Font

Times New Roman

Serif11px

Contrast Ratio

Reading Comfort

Single Font Family

left aligned

32px

15px

19px

12px

11px

❌ Critical: 11px body text is too small. Increase to at least 14px.

✅ Strong hierarchy: Headlines are 2.9x larger than body text.

✅ Excellent performance: System fonts eliminate font loading delays (better LCP).

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

⚠️ Risky: Text appears on background images without overlay protection.

⚠️ Cramped layout: 10 elements lack adequate spacing.

Buy on MyFonts

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

Google Tag ManagerFree

User behavior and product analytics

Sponsored

Scripts & Styles

13 Resources

Scripts

Styles

Async

Defer

Top Script Sources

common(6)js(1)googletagmanager.com(1)ad.jp.ap.valuecommerce.com(1)

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Last analyzed: 17 Feb 2026 at 05:07

Historical Analysis & Change Tracking