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

au.com

https://au.com· First analyzed 15 Feb 2026· Updated 15 Feb 2026

Export

au.com

Mobile

Sponsored

Hosting Provider

KDDI

IP Address

175.129.0.108

Server Location

🇯🇵 Shinjuku, Japan

ASN

AS2516

Organization

KDDI

Server

Apache

CDN

CloudFront

Nameservers

dns103.kddi.ne.jp.dns104.kddi.ne.jp.dnsa01.kddi.ne.jp.dnsa02.kddi.ne.jp.

Performance

Page Speed

1.9 MB

250 requests

Image Optimization

Lazy Load

0–49

50–89

90–100

Architecture Stack

Headless

⚙️ SSR

Decoupled

Frontend

Framework

Vue.js

API

Data Source

Headless CMS

Strapi

Infrastructure

Hosting

KDDI

CDN

CloudFront

Detected API Sources

https://lptag.liveperson.net/l...

Technology Stack

16 Technologies Detected

Libraries

Analytics

Fonts

Google Fonts Adobe Fonts (Typekit)

Advertising

Google Ads Snapchat Pixel

Frameworks

CSS Frameworks

Tag Managers

Other

Web Servers

SEO Analysis

B72/100

au.comau.com

au

auのオフィシャルサイト。個人のお客さま向けサービスをご紹介します。

Title Length2 chars

Recommended: 50-60 chars

Description Length34 chars

Recommended: 120-160 chars

Issues (0)

4 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

8,280 URLs

robots.txt

9 rules

Sitemap reference found

Sponsored

Security Score

51%Poor

Interactive

HTTPS

No WAF

356d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

GlobalSign nv-sa

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

05.01.2026

Valid Until

06.02.2027

OCSP Stapling

Enabled

Subject Alternative Names (2)

www.au.comau.com

SHA-256 Fingerprint

23:5C:85:19:7C:E0:09:C1:63:D5:5A:D6:58:7D:6E:0F:96:EF:82:1D...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

accept-ranges

bytes

age

57336

cache-control

🔴 No Cache(stale-while-revalidate=60, stale-if-error=60, no-cache="set-...)

content-encoding

📦 Gzip(gzip)

content-length

21546

content-security-policy

frame-ancestors 'self'

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

Reject (Strictest)

MX Records (4)

mx05.au.com

mx03.au.com

mx04.au.com

mx06.au.com

Domain Information

au.com

Domain Age

27y 10m

Created

03.04.1998

Expires

07.08.2026

Last Updated

20.11.2025

Registrar

PSI-Japan, Inc.

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Typography & Readability

Noto Sans JP + noto-sans-cjk-jp

51/100

Readability

/30

40/40

16px · LH 1.70

Hierarchy

/20

8/25

1x ratio

WCAG

/25

5/15

Contrast: undefined

Performance

/25

13/20

2 fonts

Heading Font

Noto Sans JP

Sans16px

Body Font

noto-sans-cjk-jp

Sans16px

Contrast Ratio

Reading Comfort

~52 CPL

Optimal (45–75)

16px

24px

16px

Major Third

Scale

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

✅ Optimal line spacing: 1.70 ratio ensures comfortable reading.

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

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

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

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

GGoogle Fonts AAdobe Fonts

Business & Marketing Stack

4 Tools Detected

Advanced

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

ContentsquareEnterprise

User behavior and product analytics

Advertising

Facebook PixelMid-Market

Ad platforms and retargeting pixels

Sponsored

Scripts & Styles

30 Resources

Scripts

Styles

Async

Defer

Top Script Sources

googletagmanager.com(8)s.yimg.jp(4)connect.facebook.net(2)youtube.com(2)img.macromill.com(1)

Website Identity

Facebook X (Twitter)Instagram YouTube

Sponsored

Last analyzed: 15 Feb 2026 at 01:45

Historical Analysis & Change Tracking