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

xrea.com

https://xrea.com· First analyzed 12 Feb 2026· Updated 12 Feb 2026

Export

xrea.com

Mobile

Sponsored

Hosting Provider

GMO Internet Group, Inc.

IP Address

163.44.176.33

Server Location

🇯🇵 Chiyoda City, Japan

ASN

AS7506

Organization

GMO Internet Group, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

vera.ns.cloudflare.com.gabriel.ns.cloudflare.com.

Performance

Page Speed

1.1 MB

112 requests

Image Optimization

Lazy LoadAVIFResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

GMO Internet Group, Inc.

CDN

Cloudflare

Technology Stack

10 Technologies Detected

Analytics

Google Analytics

Google Analytics 4

Microsoft Clarity Segment

Libraries

UI Components

CSS Frameworks

Tag Managers

Advertising

CDN

SEO Analysis

B76/100

xrea.comxrea.com

無料レンタルサーバーで高機能・高品質を実現 | XREAフリー

XREA（エクスリア）はユーザー側で自由に設定をカスタマイズできる、高い機能性を持った無料から使えるレンタルサーバーです。最新のCPUとSSD搭載で高速化を実現、また、安定したサイト運営が可能です。ワンランク上のウェブサイト、ブログ、商材サイトを目指す方におすすめします。

Title Length31 chars

Recommended: 50-60 chars

Description Length136 chars

Recommended: 120-160 chars

Issues (0)

3 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

robots.txt

Sponsored

A+

Security Score

96%Excellent

Static / Informational

HTTPS

WAF

130d

Certificate Details

Type

Domain Validated (DV)

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

22.05.2025

Valid Until

23.06.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.xrea.comxrea.com

SHA-256 Fingerprint

34:18:70:90:51:C7:6B:65:F7:A8:CA:E4:CE:9A:AD:80:C4:14:F3:1E...

Upgrade to view header details

HTTP Headers

Developer Console

access-control-allow-origin

https://internet.xrea.com

cf-cache-status

DYNAMIC

cf-ray🇩🇪 Frankfurt

9ccfb5499c15dbf3-FRA

content-encoding

📦 Gzip(gzip)

content-security-policy

default-src 'self' 'unsafe-inline' 'unsafe-eval' data: blob:...

content-type

text/html; charset=UTF-8

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

MX Records (1)

mx1.xrea.com

Domain Information

xrea.com

Domain Age

24y 6m

Created

24.07.2001

Expires

24.07.2026

Last Updated

02.12.2025

Registrar

Key-Systems GmbH

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

Typography & Readability

Arial

73/100

Readability

/30

40/40

16px · LH 1.80

Hierarchy

/20

8/25

0.75x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

20/20

System fonts

Heading Font

Arial

Sans12px

Body Font

Arial

Sans16px

Contrast Ratio

Reading Comfort

~44 CPL

Needs attention

12px

15px

18px

12px

16px

Minor Second

Scale

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

✅ Optimal line spacing: 1.80 ratio ensures comfortable reading.

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

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

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

✅ Protected text on images: Using gradient for readability.

Business & Marketing Stack

5 Tools Detected

Enterprise

Behavior Analytics

Microsoft ClarityFree

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Advertising

Twitter/X AdsMid-Market

Ad platforms and retargeting pixels

Social Media

Twitter/X WidgetsFree

Social widgets and sharing tools

Sponsored

Scripts & Styles

29 Resources

Scripts

Styles

Async

Defer

Top Script Sources

googletagmanager.com(5)local(5)cache.img.gmo.jp(3)scripts.clarity.ms(1)clarity.ms(1)

Website Identity

Facebook X (Twitter)

Sponsored

Last analyzed: 12 Feb 2026 at 23:01

Historical Analysis & Change Tracking