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

hotpepper.jp

https://hotpepper.jp· First analyzed 15 Feb 2026· Updated 15 Feb 2026

Export

hotpepper.jp

Mobile

Sponsored

Hosting Provider

Recruit Co., Ltd.

IP Address

160.17.98.198

Server Location

🇯🇵 Chiyoda City, Japan

ASN

AS2497

Organization

Recruit Co., Ltd.

Server

Apache

Nameservers

ns1.x.recruit.co.jp.ns3.x.recruit.co.jp.ns2.x.recruit.co.jp.

Performance

Page Speed

434 KB

160 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Recruit Co., Ltd.

Technology Stack

11 Technologies Detected

Analytics

Google Analytics

Google Analytics 4

Facebook Pixel Segment

Advertising

Google Ads Twitter Ads TikTok Pixel Microsoft Advertising

Libraries

jQueryv1.10.1

Tag Managers

Google Tag Manager

Web Servers

Apache

SEO Analysis

D56/100

hotpepper.jphotpepper.jp

ホットペッパーグルメ【ネット予約対応店舗数No.1】

ホットペッパーグルメはネット予約対応店舗数・ネット予約利用経験率・ネット予約満足度でNo.1！（2025年6月調査時点(株)東京商工リサーチ調べ）人気の特集や季節のおすすめ情報から簡単お店検索！ネット予約なら24時間利用可能でポイントもたまります！

Title Length27 chars

Recommended: 50-60 chars

Description Length124 chars

Recommended: 120-160 chars

Issues (2)

• Many images missing alt text (21/41)
• Missing viewport meta tag - page may not be mobile-friendly

6 issues found

Upgrade to view details

Crawlability

Sitemap

robots.txt

10 rules

Sponsored

Security Score

46%Poor

Interactive

HTTPS

No WAF

151d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

DigiCert Inc

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.2

HTTP Protocol

HTTP/1.1

Valid From

17.07.2025

Valid Until

16.07.2026

OCSP Stapling

Enabled

Subject Alternative Names (1)

*.hotpepper.jp

SHA-256 Fingerprint

B1:23:5A:B3:D2:48:7A:C7:0E:71:2A:DF:0B:EE:28:EE:4D:9D:C3:F6...

Top 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-language

en-GB

content-length

20236

content-type

text/html;charset=UTF-8

date

Sun, 15 Feb 2026 05:31:15 GMT

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (1)

mx.x.recruit.co.jp

Domain Information

hotpepper.jp

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

Typography & Readability

メイリオ

58/100

Readability

/30

10/40

10px · LH --

Hierarchy

/20

25/25

3.2x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

1 font

Heading Font

メイリオ

Sans32px

Body Font

メイリオ

Sans10px

Contrast Ratio

Reading Comfort

~73 CPL

Optimal (45–75)

32px

14px

11px

10px

❌ Critical: 10px body text is too small. Increase to at least 14px.

✅ Strong hierarchy: Headlines are 3.2x larger than body text.

✅ Good performance: Using 1 font families keeps load times fast.

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

✅ Optimal line length: ~73 characters per line is comfortable to read.

⚠️ Cramped layout: 117 elements lack adequate spacing.

Buy on MyFonts

Business & Marketing Stack

7 Tools Detected

Enterprise

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Advertising

TikTok PixelMid-Market

Facebook PixelMid-Market

Twitter/X AdsMid-Market

Microsoft AdsEnterprise

Ad platforms and retargeting pixels

Social Media

Twitter/X WidgetsFree

Social widgets and sharing tools

Sponsored

Scripts & Styles

21 Resources

Scripts

Styles

Async

Defer

Top Script Sources

googletagmanager.com(8)s.yimg.jp(5)analytics.tiktok.com(3)google-analytics.com(2)config-code.usergram.info(1)

Sponsored

Last analyzed: 15 Feb 2026 at 05:31

Historical Analysis & Change Tracking

hotpepper.jp

ホットペッパーグルメ 【ネット予約対応店舗数No.1】

ホットペッパーグルメ【ネット予約対応店舗数No.1】