indexo.dev

dual-seo.com

.com crawl

First seen 2026-05-02 · Last seen 2026-06-03 · ok HTTP/1.1 200 4092 ms crawled 2026-05-28

JP · 202.226.39.107 · AS131965 Xserver Inc.

Reputation 87/100 weak security headers no dmarc policy

sector tech type homepage

HTML metadata

Title
SEO対策、格安SEOならシーフラット
Description
SEO対策、上位表示をしたい方急いでください。
Language
ja

Technology

Server
nginx
jQuery
3.7.0

Third-party hosts loaded (3)

  • ajax.googleapis.com×1
  • www.cflut.co.jp×1
  • www.google.com×1

Registration

Registrar
GMO Internet Group, Inc. d/b/a Onamae.com
Created
2013-06-05
Expires
2027-06-05 365 days left
Updated
2026-05-07
Name servers
  • ns1.xserver.jp
  • ns2.xserver.jp

DNS records live

NS
  • ns1.xserver.jp
  • ns2.xserver.jp
  • ns3.xserver.jp
  • ns4.xserver.jp
  • ns5.xserver.jp
MX
  • 0 dual-seo.com

Email authentication weak

SPF
v=spf1 +a:sv206.xserver.jp +a:dual-seo.com +mx include:spf.sender.xserver.jp ~all
softfail (~all)
DMARC
not published
DKIM
no key found at common selectors

Certificate (current)

R12
from 2026-04-17 to 2026-07-16
Expires in 42 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://www.dual-seo.com/

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

Linked from (1)