okuramasafumi.com

HTML metadata

Technology

CDN

Cloudflare

Social widgets

• YouTube Embed

Third-party hosts loaded (3)

• www.youtube-nocookie.com×5
• assets.calendly.com×1
• github.com×1

Social

• github
• instagram
• twitter
• youtube
• linkedin

Registration

Registrar

1API GmbH

Created

2011-01-29

Expires

2027-01-29 253 days left

Updated

2026-01-24

Name servers

• eloise.ns.cloudflare.com
• jasper.ns.cloudflare.com

DNS records live

NS

• eloise.ns.cloudflare.com
• jasper.ns.cloudflare.com

Verified for

• Google

Email authentication no MX

SPF

not published

DMARC

not published

DKIM

no key found at common selectors

Certificate (current)

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 45/100 Checked live page: https://okuramasafumi.com/

present

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

findings

• missing HSTS
• missing Content Security Policy
• missing frame protection
• missing Permissions Policy

Links to (21)

• github.com×4
• neovim.io×4
• rubyonrails.org×4
• rubyconf.org×4
• rubykaigi.org×4
• euruko.org×4
• reddotrubyconf.com×4
• connpass.com×4
• kaigionrails.org×4
• instagram.com×4
• topenddevs.com×4
• speakerdeck.com×4
• stackoverflow.com×4
• linkedin.com×4
• nanoc.app×4
• simplecss.org×4
• cloudflare.com×4
• spdx.org×4
• twitter.com×4
• vimconf.org×4
• youtube.com×4

Linked from (1)

• personalsit.es×4