stu48.com

.com crawl

First seen 2026-04-15 · Last seen 2026-05-16 · ok HTTP/1.1 200 7998 ms crawled 2026-05-10

JP · 54.248.5.51 · AS16509 Amazon.com, Inc.

Reputation 89/100 weak security headers dmarc monitor-only

Classifying

HTML metadata

Title: STU48 OFFICIAL WEB SITE｜STU48 FAN CLUB
Description: 瀬戸内を拠点とするアイドルグループ「STU48」オフィシャルサイト｜ファンクラブ。最新情報、プロフィール、公演情報、限定コンテンツなどを掲載。
Language: ja

Open Graph

url: https://sp.stu48.com/
title: STU48 OFFICIAL WEB SITE｜STU48 FAN CLUB
locale: ja_JP
site name: STU48 OFFICIAL WEB SITE｜STU48 FAN CLUB

Technology

Server: Apache
CMS: Gatsby

Analytics

Google Tag Manager

Fonts

Google Fonts

Third-party hosts loaded (8)

s3-aop.plusmember.jp×31
cmn-assets.plusmember.jp×2
d2c3m4q4xgysot.cloudfront.net×2
fonts.googleapis.com×2
ajax.googleapis.com×1
fonts.gstatic.com×1
nspt.unitag.jp×1
www.googletagmanager.com×1

Social

Registration

Registrar

GMO Internet Group, Inc. d/b/a Onamae.com

Created

2016-09-30

Expires

2027-09-30 497 days left

Updated

2024-09-13

Name servers

ns-1089.awsdns-08.org
ns-1962.awsdns-53.co.uk
ns-856.awsdns-43.net
ns-94.awsdns-11.com

DNS records live

NS

ns-1089.awsdns-08.org
ns-1962.awsdns-53.co.uk
ns-856.awsdns-43.net
ns-94.awsdns-11.com

MX

10 mx.stu48.com

Email authentication partial

SPF: v=spf1 include:_netblocks.3hands.co.jp include:spf-bma.mpme.jp include:spf1.siella.jp ip4:54.250.186.95 ip4:180.189.37.128/25 include:webcas.net include:crmstyle.com ~all
softfail (~all)
DMARC: v=DMARC1; p=none; rua=mailto:dev-fc-info@ml.emtg.co.jp;
policy: none (monitoring only)
DKIM: no key found at common selectors

Certificate (current)

Amazon RSA 2048 M04

from 2025-10-13 to 2026-11-11

Expires in 174 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://sp.stu48.com/

findings

missing HSTS
missing Content Security Policy
missing frame protection
missing content type protection
missing Referrer Policy
missing Permissions Policy