sleepfoundation.org

HTML metadata

Title: Sleep Advice, Mattress & Product Reviews | Sleep Foundation
Description: At SleepFoundation.org, we combine decades of experience in sleep health education with comprehensive product testing and the latest in sleep research to put you on the path to good sleep.
Language: en-US
Canonical: https://www.sleepfoundation.org/

Open Graph

url: https://www.sleepfoundation.org/
title: Home
locale: en_US
site name: Sleep Foundation
description: At SleepFoundation.org, we combine decades of experience in sleep health education with comprehensive product testing and the latest in sleep research to put you on the path to good sleep.
updated time: 2025-11-08T00:00:00+00:00

Technology

Server: nginx
CMS: WordPress

Analytics

Google Tag Manager

Third-party hosts loaded (2)

i.ytimg.com×10
www.googletagmanager.com×1

Social

Registration

Registrar

GoDaddy.com, LLC

Created

1996-11-12

Expires

2026-11-11 175 days left

Updated

2025-12-26

Name servers

karl.ns.cloudflare.com
vida.ns.cloudflare.com

DNS records live

NS

karl.ns.cloudflare.com
vida.ns.cloudflare.com

MX

1 aspmx.l.google.com
10 alt3.aspmx.l.google.com
10 alt4.aspmx.l.google.com
5 alt1.aspmx.l.google.com
5 alt2.aspmx.l.google.com

TXT

Show 15 TXT records

google-site-verification=EmvrNeX_YnwjqDpd2HQ3i5k-F0NxeSS2RbcNbD2X8Do
google-site-verification=3VxSAytdKFImihTrHWg3B2qeRRSpb93MbBlEnl_FozI
facebook-domain-verification=6tn0swmsb0n9oawnayi4wbbzqz4a02
docusign=18135b80-8c93-405c-8ca2-d5078af45621
google-site-verification=INCX1cAHgTpdnVliStSGv06DG5KfO-eX9XaDAE0W4Ic
google-site-verification=rEsYMyav8-3uzo7y3SoADXCZZkGkqI8t99rd67zDiV8
brave-ledger-verification=ece0449451d6b003ad006d9c0b14c249d1c9378d7dc44bcb36b465c7ba279afb
google-site-verification=TOABzycmGQuCwg2JYnvb6Ps7lMQP2dFMNJ22KJjoCcg
detectify-verification=ceefc280c1e72a2044d800c0f2cbcabc
google-site-verification=j9GLXCECLzC2EA5AC5yxlEmVWEPiBz2mGux-j03cpS4
google-site-verification=ElK2ER-FW9MciAHkJAk-Q02whR39riIbJcQTn2XR7lc
klaviyo-site-verification=TKJEB5
google-site-verification=JCb3hfoJr-Cvc4qWt91FL2Rx3Ts5OWB4zA1AKHKaBM4
google-site-verification=oRBmOEbUHYBhtaETionhdGwQwlZDxTG2IxNsZ1SB8hI
apple-domain-verification=OrTXfJ8QcS4bQb5jhSyUFy2wDfsqA5t0wCVqVkLOSqU

Email authentication strong

SPF

v=spf1 include:_spf.google.com include:_spf.smtp.com include:mail.zendesk.com ~all

softfail (~all)

DMARC

v=DMARC1; p=quarantine; pct=100; adkim=r; aspf=r

policy: quarantine

DKIM

Show 4 DKIM selectors

google: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAqDFSUHuyfLjjm/jes0mcQcJp+2j5fjApy05YJ0J4BZmFU2z/NEx2pmwgrfjjq7147iVqcD7MeCZF6f…
k2: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAv2aC2KjGKLOwTweBY5A9RpjsxaBXR9r7OAU6U8/zn92ivImI75naUujWbItRI/QmL1jy5PWGqLwoUA…
s1: k=rsa; t=s; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA0h87+dPuc4NWCDTtmtJcEz+Ranfbd9761ZaVq77pyVW+hh+LZIrj3VE3DaPhk/orLWMeiBmhWmR+oxkOZb…
s2: k=rsa; t=s; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA6QUAC34TexOeRlgp4MYN7jfpKNrNe3QUHKcigZbmv87z4MBehaUHpNlC373wbc3mbjdbQ9tVGrBbQMvAGY…

selectors probed

Certificate (current)

WR1

from 2026-05-01 to 2026-07-30

Expires in 71 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 55/100 Checked live page: https://www.sleepfoundation.org/

present

strict-transport-security
referrer-policy

findings

missing Content Security Policy
missing frame protection
missing content type protection
missing Permissions Policy

Header values

referrer-policy: no-referrer-when-downgrade
strict-transport-security: max-age=31536000