shikaku-square.com

.com crawl

First seen 2026-05-02 · Last seen 2026-05-09 · ok HTTP/1.1 200 7844 ms crawled 2026-05-09

JP · 3.113.225.70 · AS16509 Amazon.com, Inc.

Reputation 94/100 dmarc monitor-only

Classifying

HTML metadata

Title: 資格スクエア｜難関資格特化のオンライン予備校・通信講座
Description: 資格スクエアは、難関資格試験に特化した通信講座です。最短合格に必要な正しい学習法を脳科学・AIなどの最新技術に基づきカリキュラム化し、スマホ・PCでいつでも学習が可能です。司法試験予備試験、弁理士試験、行政書士試験をはじめとする難関資格を中心に講座を展開しています。
Language: ja-JP

Technology

Server: nginx

Analytics

Google Tag Manager

Fonts

Google Fonts

Third-party hosts loaded (7)

shikaku-rails.s3.amazonaws.com×31
cdn.jsdelivr.net×3
b.yjtag.jp×1
code.jquery.com×1
fonts.googleapis.com×1
maxcdn.bootstrapcdn.com×1
www.googletagmanager.com×1

Social

Contact

Address: 神宮前6-27-8 京セラ原宿ビル2階, 150-0001, 渋谷区, 東京都, JP

Registration

Registrar

Squarespace Domains II LLC

Created

2013-08-28

Expires

2026-08-28 99 days left

Updated

2025-08-13

Name servers

ns-1069.awsdns-05.org
ns-1910.awsdns-46.co.uk
ns-220.awsdns-27.com
ns-967.awsdns-56.net

DNS records live

NS

ns-1069.awsdns-05.org
ns-1910.awsdns-46.co.uk
ns-220.awsdns-27.com
ns-967.awsdns-56.net

MX

1 smtp.google.com

TXT

pardot1028113=7e6ee8ab0b3ed0615266afa72c03dfb08684f6fe329d98cec9108554ff1edae1
sending_domain1028113=80a033620c66795c0e84cc4c21394b6224b13fe6840f497b630dca279fabc974

Verified for

Google
Meta
Microsoft 365

Email authentication partial

SPF

v=spf1 include:_spf.google.com include:_spf.maildeliver.jp include:spf.satorimail.net include:mail.zendesk.com include:_spf.youcanbook.me ~all

softfail (~all)

DMARC

v=DMARC1; p=none; rua=mailto:origin@shikaku-square.com; adkim=r; aspf=r

policy: none (monitoring only)

DKIM

google: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAqXYlQ/bCl7GT4roAcla7NRJID3mw9CJIpbj5g7YayACd92ToPt/W/TtRApWCs7vOp4mTgtP3e14dSV…
s1: k=rsa; t=s; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEApvHu1JhD3l5BXNsoaQ5m6saC7pCp9xpG/YnkeehshcgktpjtxD8w+ZjrrMNLqozlMbkw9/LExMIpfrKzOD…
s2: k=rsa; t=s; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAxZoerJyfiUpxvviFltL2ptEvK5/kxaGzdrio7a3tG+mMQbmjOgegOZauoC46KKxZ+Ui2rDyRXHsjuKyjTl…

selectors probed

Certificate (current)

Amazon RSA 2048 M04

from 2025-09-14 to 2026-10-13

Expires in 145 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 95/100 Checked live page: https://www.shikaku-square.com/

present

strict-transport-security
content-security-policy
x-frame-options
x-content-type-options
referrer-policy

findings

missing Permissions Policy

Header values

referrer-policy: strict-origin-when-cross-origin
x-frame-options: SAMEORIGIN
x-content-type-options: nosniff
content-security-policy: frame-ancestors 'self'
strict-transport-security: max-age=63072000; includeSubDomains

Links to (6)

Linked from (1)

ripple-kidspark.com×1