heartrails.com

HTML metadata

Technology

CDN

Amazon CloudFront

Server

nginx

Analytics

• Google Tag Manager

Social widgets

• Twitter Widget

Third-party hosts loaded (4)

• b.st-hatena.com×2
• www.facebook.com×2
• platform.twitter.com×1
• www.googletagmanager.com×1

Social

• facebook
• twitter

Registration

Registrar

eNom, LLC

Created

2006-02-28

Expires

2030-02-28 1381 days left

Updated

2026-04-22

Name servers

• ns-1137.awsdns-14.org
• ns-1577.awsdns-05.co.uk
• ns-273.awsdns-34.com
• ns-722.awsdns-26.net

DNS records live

NS

• ns-1137.awsdns-14.org
• ns-1577.awsdns-05.co.uk
• ns-273.awsdns-34.com
• ns-722.awsdns-26.net

MX

• 10 aspmx.l.google.com
• 20 alt1.aspmx.l.google.com
• 30 alt2.aspmx.l.google.com
• 40 aspmx2.googlemail.com
• 50 aspmx3.googlemail.com
• 60 aspmx4.googlemail.com
• 70 aspmx5.googlemail.com

TXT

• anthropic-domain-verification-vbpkft=oQGqcqxGzBxGq2bq0lPR6wIFp

Email authentication partial

SPF

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

softfail (~all)

DMARC

v=DMARC1; p=none; pct=100; rua=mailto:re+vyveb3nek42@dmarc.postmarkapp.com; sp=none; aspf=r;

policy: none (monitoring only) · sp=none

DKIM

• google: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAkuQhFHT+KFCHJSJ9EKeC5RsSoKhvfy9+Kebfg4fM3fJtOIQOlNtLBL7+/9tqYVkMFHkDe+Rz+lygdr…

selectors probed

Certificate (current)

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 55/100 Checked live page: https://www.heartrails.com/

present

• x-frame-options
• x-content-type-options
• referrer-policy

findings

• missing HSTS
• missing Content Security Policy
• missing Permissions Policy

Links to (6)

• facebook.com×2
• github.io×2
• qiita.com×2
• twitter.com×2
• x.com×2
• zenn.dev×2

Linked from (1)

• milcow.com×2