indexo.dev

gss-system.org

.org crawl

First seen 2026-04-18 · Last seen 2026-05-08 · ok HTTP/1.1 200 5546 ms crawled 2026-05-12

JP · 59.106.19.30 · AS9370 SAKURA Internet Inc.

Reputation 87/100 weak security headers no dmarc policy

Classifying

HTML metadata

Title
ガス機器設置スペシャリスト（GSS）とは…
Description
ガス機器設置スペシャリスト（GSS）とは、ガス機器の設置・施工についての資格のことです。固定して使用されるガス機器の設置・施工には、安全性などの面から、最新の知識や専門的な設置技能が必要です。
Language
ja

Technology

Server
nginx
Analytics
  • Google Tag Manager

Third-party hosts loaded (2)

  • counter1.fc2.com×2
  • www.googletagmanager.com×1

Registration

Registrar
GMO Internet Group, Inc. d/b/a Onamae.com
Created
1999-11-10
Expires
2026-11-10 173 days left
Updated
2025-11-05
Name servers
  • ns1.dns.ne.jp
  • ns2.dns.ne.jp

DNS records live

NS
  • ns1.dns.ne.jp
  • ns2.dns.ne.jp
MX
  • 10 gss-system.org

Email authentication weak

SPF
v=spf1 a:www600.sakura.ne.jp mx ~all
softfail (~all)
DMARC
not published
DKIM
no key found at common selectors

Certificate (current)

R13
from 2026-03-15 to 2026-06-13
Expires in 23 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://gss-system.org/

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

Linked from (1)