tc39.es

HTML metadata

Technology

CDN

Fastly

Server

GitHub.com

Fonts

• Google Fonts

Third-party hosts loaded (1)

• fonts.googleapis.com×1

Social

• github
• bluesky
• mastodon

DNS records live

NS

• freedns1.registrar-servers.com
• freedns2.registrar-servers.com
• freedns3.registrar-servers.com
• freedns4.registrar-servers.com
• freedns5.registrar-servers.com

MX

• 1 aspmx.l.google.com
• 10 aspmx2.googlemail.com
• 10 aspmx3.googlemail.com
• 5 alt1.aspmx.l.google.com
• 5 alt2.aspmx.l.google.com

TXT

• google-site-verification=ckzRdAog52ZTCj7JYJP62mGaLuj0CnltoJ6y_S6W7ho

Email authentication weak

SPF

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

softfail (~all)

DMARC

not published

DKIM

• google: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAz3CZtW5g0ywhWyYT1xKQrO0oezLK2IutEjUmFDTq1m+MRWOZurfHDfv2RAhLkDYPzYCMZiHOvxbTh2…

selectors probed

Certificate (current)

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://tc39.es/

findings

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

Links to (5)

• ecma-international.org×6
• github.com×4
• bsky.app×4
• fosstodon.org×4
• timothygu.me×4

Linked from (8)

• peraknezevic.com×4
• linus.dev×4
• deno.com×4
• 11ty.dev×4
• v8.dev×4
• mdn.io×2
• 11ty.io×2
• geticon.org×1