What powers next-golf.jp?

Last seen Aug 2026 · 34 technologies across 17 categories

A/B Testing

Google Optimize
since Jul 2021

Analytics

Facebook Pixel v2.9.100
since Jul 2021
Google Analytics
since May 2019
Microsoft Clarity v0.7.6
since Dec 2021
Vercel Analytics
since Aug 2026

CDN

Amazon CloudFront
since Jul 2021

Font scripts

Google Font API
since Apr 2023

JavaScript frameworks

Next.js v15.5.18
since Aug 2026
Next.js App Router
since Aug 2026
React
since Aug 2026

JavaScript libraries

core-js v3.0.0
since Sep 2021
jQuery v3.5.1
since May 2019
jQuery Migrate v1.4.1
since May 2019
jQuery UI v1.12.1
since May 2019
Slick
since May 2019

Load balancers

Amazon ELB
since Apr 2023

Miscellaneous

Open Graph
since Sep 2022
Webpack
since Aug 2026

PaaS

Amazon Web Services
since Jul 2021
Vercel
since Aug 2026

Performance

Priority Hints
since Aug 2026

Programming languages

Java
since Apr 2023
Node.js
since Aug 2026
PHP v5.3.29
since Jul 2021

Security

HSTS
since Aug 2026

Tag managers

Google Tag Manager
since Oct 2020

UI frameworks

Radix UI
since Aug 2026
shadcn/ui
since Aug 2026
Tailwind CSS
since Apr 2022

Video players

YouTube
since Aug 2026

Web servers

Amazon EC2
since Apr 2023
Apache HTTP Server v2.2.31
since Jul 2021

Webmail

Google Workspace
since Apr 2023
Microsoft 365
since Aug 2022

AI Crawlers

Blocks 1 of 33 AI crawlers we track by name in its robots.txt, restricts 15 more. Checked Oct 2026.

Training crawlers

  • Applebot-Extended Restricted
  • ClaudeBot Restricted
  • cohere-training-data-crawler Restricted
  • Google-Extended Restricted
  • GPTBot Restricted
  • meta-externalagent Restricted

Search and AI assistants

  • PetalBot Blocked
  • Amazonbot Restricted
  • Applebot Restricted
  • Claude-SearchBot Restricted
  • DuckAssistBot Restricted
  • OAI-SearchBot Restricted
  • PerplexityBot Restricted

User-request fetchers

  • ChatGPT-User Restricted
  • Claude-User Restricted
  • Perplexity-User Restricted

The other 17 AI crawlers we track are not mentioned and only inherit the catch-all rules that apply to every crawler.

  • Sep 2026 chatgpt-user added to robots.txt
  • Sep 2026 claude-user added to robots.txt
  • Sep 2026 claude-searchbot added to robots.txt
  • Sep 2026 claude-web added to robots.txt
  • Sep 2026 applebot-extended added to robots.txt
  • Sep 2026 llms.txt appeared

See who blocks each AI crawler across the web

AI Crawlers

1 of 33 AI crawlers blocked

Standards: llms.txt

Full breakdown

Audience

  • Japan

Where the site's Chrome visitors come from, largest estimated audience first.

Open Page Rank

3.50 / 10 · ranked #896,154 of all domains

29 referring domains · OpenPageRank

Core Web Vitals

LCP1.8 s
CLS0
TTFB300 ms

Real user p75, Chrome UX Report, Aug 2026.

Infrastructure

  • Hosted on Amazon Web Services (216.150.1.193)
  • DNS: Vercel
  • Email: no MX record returned
  • SSL: Let's Encrypt, RSA 2048, wildcard, expires Nov 2026
  • Common Crawl link graph: rank 14,923,441, 2 hosts
  • Verified with: Google

DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted

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