sleepfoundation.org
Sleep Advice and Mattress Reviews | Sleep Foundation
sleepfoundation.org is registered with GoDaddy.com, LLC since November 12, 1996 (30.0 years). The registration expires on November 11, 2026. The site runs on WordPress, PHP, HSTS and 4 other technologies. Its email security grade is C. Its SSL certificate is issued by Google Trust Services and is valid for 83 more days.
- Domain age
- 30.0 yrs
- Technologies
- 7
- Email security
- C
- SSL days left
- 83
Registration
| Registrar | GoDaddy.com, LLC |
|---|---|
| IANA ID | 146 |
| Registered | November 12, 1996 |
| Expires | November 11, 2026 |
| Updated | August 12, 2026 |
| Status | client delete prohibited, client renew prohibited, client transfer prohibited, client update prohibited |
| Name servers | karl.ns.cloudflare.com, vida.ns.cloudflare.com |
| DNSSEC | Not signed |
DNS records
| Type | Value | TTL |
|---|---|---|
| A | 199.16.172.194 | 3600 |
| A | 199.16.173.203 | 3600 |
| MX | aspmx.l.google.com 1 | 300 |
| MX | alt3.aspmx.l.google.com 10 | 300 |
| MX | alt4.aspmx.l.google.com 10 | 300 |
| MX | alt1.aspmx.l.google.com 5 | 300 |
| MX | alt2.aspmx.l.google.com 5 | 300 |
| NS | karl.ns.cloudflare.com | 86400 |
| NS | vida.ns.cloudflare.com | 86400 |
| CAA | issue 0 amazon.com | 300 |
| CAA | issue 0 comodoca.com | 300 |
| CAA | issue 0 digicert.com; cansignhttpexchanges=yes | 300 |
| CAA | issue 0 globalsign.com | 300 |
| CAA | issue 0 letsencrypt.org | 300 |
| CAA | issue 0 pki.goog; cansignhttpexchanges=yes | 300 |
| CAA | issue 0 ssl.com | 300 |
| CAA | issuewild 0 amazon.com | 300 |
| CAA | issuewild 0 comodoca.com | 300 |
| CAA | issuewild 0 digicert.com; cansignhttpexchanges=yes | 300 |
| CAA | issuewild 0 letsencrypt.org | 300 |
| CAA | issuewild 0 pki.goog; cansignhttpexchanges=yes | 300 |
| TXT | apple-domain-verification=OrTXfJ8QcS4bQb5jhSyUFy2wDfsqA5t0wCVqVkLOSqU | 300 |
| TXT | brave-ledger-verification=ece0449451d6b003ad006d9c0b14c249d1c9378d7dc44bcb36b465c7ba279afb | 300 |
| TXT | detectify-verification=ceefc280c1e72a2044d800c0f2cbcabc | 300 |
| TXT | docusign=18135b80-8c93-405c-8ca2-d5078af45621 | 300 |
| TXT | facebook-domain-verification=6tn0swmsb0n9oawnayi4wbbzqz4a02 | 300 |
| TXT | google-site-verification=3VxSAytdKFImihTrHWg3B2qeRRSpb93MbBlEnl_FozI | 300 |
| TXT | google-site-verification=ElK2ER-FW9MciAHkJAk-Q02whR39riIbJcQTn2XR7lc | 300 |
| TXT | google-site-verification=EmvrNeX_YnwjqDpd2HQ3i5k-F0NxeSS2RbcNbD2X8Do | 300 |
| TXT | google-site-verification=INCX1cAHgTpdnVliStSGv06DG5KfO-eX9XaDAE0W4Ic | 300 |
| TXT | google-site-verification=JCb3hfoJr-Cvc4qWt91FL2Rx3Ts5OWB4zA1AKHKaBM4 | 300 |
| TXT | google-site-verification=TOABzycmGQuCwg2JYnvb6Ps7lMQP2dFMNJ22KJjoCcg | 300 |
| TXT | google-site-verification=j9GLXCECLzC2EA5AC5yxlEmVWEPiBz2mGux-j03cpS4 | 300 |
Technology stack
Analytics and advertising IDs
google_tag_manager:GTM-MCTPTGMSSL certificate
| Valid | Valid |
|---|---|
| Issuer | US, WR1, Google Trust Services |
| Expires | February 1, 2027 |
| Days remaining | 83 |
| Protocol | TLSv1.3 |
| Names | tls.automattic.com, all-in-a-day.com, artkinetic.ro, bayardsolutions.com, deannaskinner.com, filmstripsandfairytales.com, grootgezelschap.com, homewithhope.blog, lavaniaservices.com, marcvanderleeden.com, matthewslaats.org, ponder.bio |
Email security
- warnDMARC has no rua= address, so you receive no reports about mail sent as your domain.
- warnNo MTA-STS: mail sent to you can be downgraded to an unencrypted connection.
- warnNo TLS-RPT record, so you won't hear about failed encrypted deliveries.
- goodSPF record found.
- goodSPF ends with ~all: servers you have not listed are marked as suspicious (soft fail).
- goodDMARC policy is quarantine: failing mail goes to spam. Move to p=reject for full protection.
- goodDKIM keys found (selector: google, k2, s1, s2).
- good5 MX record(s) found. Mail is handled by Google Workspace.
- goodBIMI record found: supporting inboxes can show your brand logo.
Homepage metadata
| Title | Sleep Advice and Mattress Reviews | Sleep Foundation |
|---|---|
| Description | At SleepFoundation.org, we combine decades of experience in sleep health education with comprehensive product testing to help you sleep better. |
| Language | en-US |
| Canonical | https://www.sleepfoundation.org/ |
| Structured data | WebPage, ImageObject, WebSite, Organization, VideoObject |
| Indexable | Yes |
| Word count | 1461 |
About sleepfoundation.org
Who is the registrar of sleepfoundation.org?
sleepfoundation.org is registered with GoDaddy.com, LLC (IANA ID 146).
When does sleepfoundation.org expire?
The current registration of sleepfoundation.org expires on November 11, 2026. It was first registered on November 12, 1996.
What technology does sleepfoundation.org use?
We detected 7 technologies on sleepfoundation.org, including WordPress, PHP, HSTS, Yoast SEO, Google Tag Manager, YouTube.
Does sleepfoundation.org protect its email with SPF and DMARC?
sleepfoundation.org scores 73/100 (grade C) for email security. DMARC has no rua= address, so you receive no reports about mail sent as your domain. No MTA-STS: mail sent to you can be downgraded to an unencrypted connection.
What are the name servers of sleepfoundation.org?
sleepfoundation.org uses karl.ns.cloudflare.com, vida.ns.cloudflare.com.