indexo.dev

tennis-biz.com

.com crawl

First seen 2026-04-25 · Last seen 2026-04-25 · ok HTTP/1.1 200 3542 ms crawled 2026-05-18

JP · 157.7.189.64 · AS7506 GMO Internet Group, Inc.

Reputation 89/100 weak security headers dmarc monitor-only

Classifying

HTML metadata

Title
Tennis Biz - テニスの上達のためのレッスン動画＆DVDで正しい身体の使い方をマスター
Description
テニスの上達のためのレッスン動画＆DVDで正しい身体の使い方をマスター
Language
ja
Generator
All in One SEO (AIOSEO) 4.9.6.2
Canonical
https://tennis-biz.com/
Feeds

Open Graph

url
https://tennis-biz.com/
title
Tennis Biz - テニスの上達のためのレッスン動画＆DVDで正しい身体の使い方をマスター
locale
ja_JP
site name
Tennis Biz - テニスの上達のためのレッスン動画＆DVDで正しい身体の使い方をマスター
description
テニスの上達のためのレッスン動画＆DVDで正しい身体の使い方をマスター

Technology

Server
Apache
CMS
WordPress
Analytics
  • Google Tag Manager
Ads
  • Google AdSense
Fonts
  • Google Fonts
Social widgets
  • YouTube Embed
Third-party hosts loaded (12)
  • i0.wp.com×8
  • fonts.googleapis.com×3
  • ajax.googleapis.com×2
  • maxcdn.bootstrapcdn.com×2
  • pagead2.googlesyndication.com×2
  • stats.wp.com×2
  • www.googletagmanager.com×2
  • apis.google.com×1
  • secure.gravatar.com×1
  • v0.wordpress.com×1
  • wp.me×1
  • www.youtube.com×1

Contact

Phone

Registration

Registrar
GMO Internet Group, Inc. d/b/a Onamae.com
Created
2008-09-19
Expires
2026-09-19 121 days left
Updated
2025-08-19
Name servers
  • dns0.heteml.jp
  • dns1.heteml.jp

DNS records live

NS
  • dns0.heteml.jp
  • dns1.heteml.jp
MX
  • 10 mx-proxy501.heteml.jp
  • 20 mx-proxy502.heteml.jp

Email authentication partial

SPF
v=spf1 include:_spf.heteml.jp ~all
softfail (~all)
DMARC
v=DMARC1; p=none;
policy: none (monitoring only)
DKIM
no key found at common selectors

Certificate (current)

R13
from 2026-05-03 to 2026-08-01
Expires in 73 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 35/100 Checked live page: https://tennis-biz.com/

present
  • permissions-policy
findings
  • missing HSTS
  • missing Content Security Policy
  • missing frame protection
  • missing content type protection
  • missing Referrer Policy
Header values
permissions-policy
private-state-token-redemption=(self "https://www.google.com" "https://www.gstatic.com" "https://recaptcha.net" "https://challenges.cloudflare.com" "https://hcaptcha.com"), private-state-token-issuance=(self "https://www.google.com" "https://www.gstatic.com" "https://recaptcha.net" "https://challenges.cloudflare.com" "https://hcaptcha.com")

Links to (2)

Linked from (1)