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

xserver.ne.jp

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

Export

xserver.ne.jp

Sponsored

Hosting Provider

XSERVER Inc.

IP Address

175.28.4.95

Server Location

🇯🇵 Chiyoda City, Japan

ASN

AS131965

Organization

XSERVER Inc.

Server

Apache

Nameservers

ns1.xserver.jp.ns3.xserver.jp.ns2.xserver.jp.

Performance

Page Speed

4.4 MB

103 requests

Image Optimization

Lazy LoadResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

XSERVER Inc.

Technology Stack

9 Technologies Detected

Analytics

Google Analytics

Google Analytics 4

Facebook Pixel Microsoft Clarity

Libraries

CSS Frameworks

Tag Managers

Web Servers

Customer Support

SEO Analysis

A+90/100

xserver.ne.jpxserver.ne.jp

レンタルサーバー国内シェアNo.1のエックスサーバー WordPressが超高速

高速・安定のレンタルサーバーならエックスサーバー！「導入企業数24万社・運用サイト数250万件」突破の豊富な実績。WordPress関連の独自機能も提供。まずは無料お試し10日間。

Title Length40 chars

Recommended: 50-60 chars

Description Length90 chars

Recommended: 120-160 chars

Issues (0)

1 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

897 URLs

robots.txt

7 rules

Sitemap reference found

Sponsored

Security Score

71%Good

Static / Informational

HTTPS

No WAF

131d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

CloudSecure Corporation

Key Algorithm

RSA (2048 bit)

Signature

SHA-384 with RSA

TLS Version

TLSv1.2

HTTP Protocol

HTTP/1.1

Valid From

28.05.2025

Valid Until

28.06.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.xserver.ne.jpxserver.ne.jp

SHA-256 Fingerprint

5F:4B:01:36:25:09:67:B8:0C:3B:51:6D:8D:99:76:76:E4:C0:32:43...

Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

connection

Keep-Alive

content-encoding

📦 Gzip(gzip)

content-length

17966

content-type

text/html; charset=EUC-JP

date

Tue, 17 Feb 2026 21:44:01 GMT

keep-alive

timeout=1, max=100

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (1)

mail.xserver.ne.jp

Domain Information

xserver.ne.jp

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Typography & Readability

Roboto

60/100

Readability

/30

17/40

16px · LH 1.00

Hierarchy

/20

15/25

1x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

20/20

System fonts

Heading Font

Roboto

Sans16px

Body Font

Roboto

Sans16px

Contrast Ratio

Reading Comfort

~37 CPL

Needs attention

16px

18px

16px

Minor Second

Scale

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

⚠️ Tight line spacing (1.00). Consider 1.4-1.6 for better readability.

⚠️ 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.

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

Business & Marketing Stack

4 Tools Detected

Advanced

Behavior Analytics

Microsoft ClarityFree

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Advertising

Facebook PixelMid-Market

Ad platforms and retargeting pixels

Sponsored

Scripts & Styles

22 Resources

Scripts

Styles

Async

Defer

Top Script Sources

googletagmanager.com(8)google-analytics.com(3)xserver.ne.jp(3)connect.facebook.net(2)statics.a8.net(2)

Website Identity

Facebook X (Twitter)

Sponsored

Last analyzed: 17 Feb 2026 at 21:44

Historical Analysis & Change Tracking