indexo.dev

a5cooking.com

.com crawl

First seen 2026-04-22 · Last seen 2026-05-13 · ok HTTP/1.1 200 6956 ms crawled 2026-05-16

JP · 157.7.107.50 · AS7506 GMO Internet Group, Inc.

Reputation 87/100 weak security headers no dmarc policy

Classifying

HTML metadata

Title
A5 Cooking　英語でクッキング！英語と料理が同時に習える教室です
Description
A5 Cooking　英語でクッキング！英語と料理が同時に習える教室です！ランチ付きの英会話教室？英会話つきのお料理教室？英語は話したいけど、なかなか勉強する機会がない、、そんなあなたにおススメです！

Technology

Server
Apache

Registration

Registrar
GMO Internet Group, Inc. d/b/a Onamae.com
Created
2008-09-16
Expires
2026-09-16 118 days left
Updated
2025-08-16
Name servers
  • dns01.muumuu-domain.com
  • dns02.muumuu-domain.com

DNS records live

NS
  • dns01.muumuu-domain.com
  • dns02.muumuu-domain.com
MX
  • 50 mx01.lolipop.jp

Email authentication weak

SPF
not published
DMARC
not published
DKIM
no key found at common selectors

Certificate (current)

R13
from 2026-04-04 to 2026-07-03
Expires in 43 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://a5cooking.com/

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

Linked from (1)