json5.org

HTML metadata

Technology

CDN

Cloudflare

Third-party hosts loaded (2)

• app.travis-ci.com×1
• coveralls.io×1

Social

• github

Registration

Registrar

Tucows Domains Inc.

Created

2011-04-11

Expires

2027-04-11 326 days left

Updated

2026-04-15

Name servers

• chuck.ns.cloudflare.com
• serena.ns.cloudflare.com

DNS records live

NS

• chuck.ns.cloudflare.com
• serena.ns.cloudflare.com

MX

• 38 route3.mx.cloudflare.net
• 46 route2.mx.cloudflare.net
• 7 route1.mx.cloudflare.net

Email authentication strong

SPF

v=spf1 include:_spf.mx.cloudflare.net include:_spf.google.com ~all

softfail (~all)

DMARC

v=DMARC1; p=reject; pct=100; adkim=s; aspf=s; rua=mailto:99b54c13355d4f7da349e9b896c8065a@dmarc-reports.cloudflare.net;

policy: reject (enforced)

DKIM

no key found at common selectors

Certificate (current)

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 40/100 Checked live page: https://json5.org/

present

• x-frame-options

findings

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

Links to (19)

• apple.com×2
• babeljs.io×2
• bolinfest.com×2
• chromium.org×2
• coveralls.io×2
• crockford.com×2
• ecma-international.org×2
• editorconfig.org×2
• github.com×2
• github.io×2
• ieee.org×2
• ietf.org×2
• jetbrains.com×2
• json.org×2
• mozilla.org×2
• npmjs.com×2
• retool.com×2
• substack.com×2
• travis-ci.com×2

Linked from (1)

• alvinashcraft.com×1