indexo.dev

31sumai.com

.com crawl

First seen 2026-04-11 · Last seen 2026-05-18 · ok HTTP/1.1 200 5710 ms crawled 2026-05-18

JP · 13.193.197.91 · AS16509 Amazon.com, Inc.

Reputation 89/100 weak security headers dmarc monitor-only

Classifying

HTML metadata

Title
【三井不動産レジデンシャル】新築マンション・分譲マンションなら三井のすまい
Description
三井のすまい（31sumai.com）三井不動産レジデンシャル【公式サイト】。三井のすまい（31sumai.com）は、新築マンション･分譲マンション･一戸建ての住まい情報総合サイトです。
Canonical
https://www.31sumai.com/index.html

Technology

Server
Apache
Analytics
  • Google Tag Manager

Third-party hosts loaded (3)

  • o.advg.jp×2
  • assets.adobedtm.com×1
  • www.googletagmanager.com×1

Registration

Registrar
Japan Registry Services Co., Ltd.
Created
2000-08-16
Expires
2027-08-16 453 days left
Updated
2025-07-10
Name servers
  • ns-134.awsdns-16.com
  • ns-1380.awsdns-44.org
  • ns-1883.awsdns-43.co.uk
  • ns-954.awsdns-55.net

DNS records live

NS
  • ns-134.awsdns-16.com
  • ns-1380.awsdns-44.org
  • ns-1883.awsdns-43.co.uk
  • ns-954.awsdns-55.net
MX
  • 10 mx.securemx.jp
TXT
Show 6 TXT records
  • MS=ms72528195
  • box-domain-verification=2f9b847cfb258615889dd0fea417e6d9eee7d125cceb7a24bd1b0bac5b8df516
  • google-site-verification=7hlhPafIVjuvB6asCt5lUoFhJ1KE0qnaYzjVWtBnlrc
  • google-site-verification=XGgeu4HxwasPWms2K5CXiFonL86CYKpcZ4sOGMvNisE
  • google-site-verification=m1soGzULf4rjx-pOOrMBIsaOpesas3-49KHDBNjKzNQ
  • 9fKuQuayMB/nu9C3hC70g8bVqgZuqQsYZBaWrkImINV52644XctTlsa6IEOmViZAjwycWd88O5NDLNCuXjT19Q==

Email authentication partial

SPF
v=spf1 include:spf.protection.outlook.com include:mktomail.com include:amazonses.com include:spf.securemx.jp ~all
softfail (~all)
DMARC
v=DMARC1; p=none; rua=mailto:dmarc-rua@report.securemx.jp
policy: none (monitoring only)
DKIM
  • selector1: v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCV9Du83kap+Ln89Q2WNiWx1tLqhFVtO+KTj1mdFVNMX+55Ym/y9UtqIn4o3PkulNPwPhX0wcQEKu00p2NvUF…
  • selector2: v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC8q3sjA3xOzo1ZgPs6d5E8lv/RPrN9iXNVFTLzYZyjD+PrniXNb91L/A+1xw5uOl8y3ECt5DUiNGmK5hL1JL…
selectors probed

Certificate (current)

Amazon RSA 2048 M04
from 2025-10-08 to 2026-11-07
Expires in 171 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 40/100 Checked live page: https://www.31sumai.com/

present
  • x-frame-options
findings
  • missing HSTS
  • missing Content Security Policy
  • missing content type protection
  • missing Referrer Policy
  • missing Permissions Policy
Header values
x-frame-options
Deny

Links to (6)

Linked from (2)