tetsuyukai.com

.com crawl

First seen 2026-05-10 · Last seen 2026-05-10 · ok HTTP/1.1 200 4041 ms crawled 2026-05-16

JP · 85.131.197.100 · AS131965 Xserver Inc.

Reputation 89/100 weak security headers dmarc monitor-only

Classifying

HTML metadata

Title: 医療法人社団鉄結会 | アイシークリニック運営法人
Description: 医療法人社団鉄結会は、アイシークリニック（上野・新宿・渋谷・池袋・東京・大宮）を運営する医療法人です。
Language: ja

Open Graph

url: https://tetsuyukai.com
title: 医療法人社団鉄結会
locale: ja_JP
description: アイシークリニックを運営する医療法人社団鉄結会の公式サイトです。

Technology

Server: nginx

Fonts

Google Fonts

Third-party hosts loaded (2)

fonts.googleapis.com×2
fonts.gstatic.com×1

Contact

Email

info@tetsuyukai.com

Registration

Registrar

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

Created

2017-02-22

Expires

2027-02-22 277 days left

Updated

2026-02-27

Name servers

ns1.xserver.jp
ns2.xserver.jp
ns3.xserver.jp
ns4.xserver.jp
ns5.xserver.jp

DNS records live

NS

ns1.xserver.jp
ns2.xserver.jp
ns3.xserver.jp
ns4.xserver.jp
ns5.xserver.jp

MX

1 aspmx.l.google.com
10 alt3.aspmx.l.google.com
10 alt4.aspmx.l.google.com
5 alt1.aspmx.l.google.com
5 alt2.aspmx.l.google.com

Verified for

Google

Email authentication partial

SPF

v=spf1 include:_spf.google.com ~all

softfail (~all)

DMARC

v=DMARC1; p=none; rua=mailto:info@icion.co.jp;

policy: none (monitoring only)

DKIM

default: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAt/gRgchv8GenVmnbjU7pG3R5qPYE2nCPrdbRJmO2onQcXbbq1EZ7s8nRsbgkrzz1SJ2DgjVZy2VVg8…
google: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAltqLMzJgYw7ylQHBbCnCmXgmFz9j4/tkK1XSLbHCu7G//nikL18H4sxUA3jH1X9VKs3/ZlA6pAbNCx…

selectors probed

Certificate (current)

R12

from 2026-04-29 to 2026-07-28

Expires in 68 days

Full certificate history on crt.sh ↗

HTTP security headers

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

findings

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