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

hmv.co.jp

https://hmv.co.jp· First analyzed 19 Feb 2026· Updated 19 Feb 2026

Export

hmv.co.jp

Sponsored

Hosting Provider

OCN

IP Address

211.0.140.142

Server Location

🇯🇵 Chiyoda City, Japan

ASN

AS4713

Organization

OCN

Nameservers

uns02.usen.ad.jp.2nd.dnsv.jp.

Performance

Page Speed

649 KB

171 requests

Image Optimization

Lazy LoadResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

OCN

Technology Stack

10 Technologies Detected

Analytics

Libraries

Advertising

Google Ads Twitter Ads

Other

Modernizr

CSS Frameworks

Tailwind CSS

Tag Managers

Google Tag Manager

SEO Analysis

D58/100

hmv.co.jphmv.co.jp

HMV&BOOKS online - 本・CD・DVD・ブルーレイ・ゲーム・グッズの通販専門サイト

「HMV&BOOKS online」は、本・CD・DVD・ブルーレイはもちろん、各種グッズやアクセサリーまで通販ができるオンラインショップです。ポイントは店舗、ネット共通！本・CDやDVD・ブルーレイの通販ならHMV&BOOKS online！

Title Length49 chars

Recommended: 50-60 chars

Description Length123 chars

Recommended: 120-160 chars

Issues (3)

• Missing H1 tag - every page should have one H1
• Many images missing alt text (198/255)
• Missing viewport meta tag - page may not be mobile-friendly

4 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

25,000 URLs

robots.txt

31 rules

Sitemap reference found

Sponsored

Security Score

0%Critical

No SSL

No WAF

N/A

Upgrade to view header details

HTTP Headers

Developer Console

content-encoding

📦 Gzip(gzip)

content-type

text/html; charset=Shift_JIS

date

Thu, 19 Feb 2026 13:47:01 GMT

transfer-encoding

chunked

vary

User-Agent, Accept-Encoding

x-cnection

Good Warning Issue

Email Infrastructure

Microsoft 365

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (1)

hmv-co-jp.mail.protection.outlook.com

Domain Information

hmv.co.jp

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Data Protection Officer mentioned

Typography & Readability

ヒラギノ角ゴ Pro W3

51/100

Readability

/30

32/40

15px · LH 1.50

Hierarchy

/20

8/25

0.87x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

1 font

Heading Font

ヒラギノ角ゴ Pro W3

Sans13px

Body Font

ヒラギノ角ゴ Pro W3

Sans15px

Contrast Ratio

Reading Comfort

~139 CPL

Needs attention

13px

16px

15px

Major Third

Scale

⚠️ Small text: 15px may be hard to read on mobile. Consider 16px+.

✅ Optimal line spacing: 1.50 ratio ensures comfortable reading.

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

✅ 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

7 Tools Detected

Enterprise

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

Matomo (Piwik)Mid-Market

User behavior and product analytics

Advertising

Facebook PixelMid-Market

Twitter/X AdsMid-Market

Ad platforms and retargeting pixels

Social Media

Facebook SDKFree

Twitter/X WidgetsFree

Social widgets and sharing tools

Sponsored

Scripts & Styles

30 Resources

Scripts

Styles

Async

Defer

Top Script Sources

googletagmanager.com(9)connect.facebook.net(5)dmp.im-apps.net(2)config-code.usergram.info(1)code.usergram.info(1)

Website Identity

X (Twitter)Instagram

Sponsored

Last analyzed: 19 Feb 2026 at 13:47

Historical Analysis & Change Tracking