Infrastructure
· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.DCDN & DeliveryActionNo CDN detectedFIX
Consider using a CDN to improve global delivery speed and reduce origin load.
CIPv6 ReadinessActionNo IPv6 supportREVIEW
IPv6 support is increasingly important for global accessibility. About 40% of internet users have IPv6 connectivity.
No AAAA records — same impact as 'no IPv6 (AAAA) records'; IPv6-preferring clients pay extra latency falling back to IPv4.
Source: Google IPv6 stats
BURL Variantswww/non-www, trailing slash, HTTP→HTTPSREVIEW
www / non-www
Inconsistent — duplicate content risk
HTTP → HTTPS
Consistent
BTLS Certificate Expiry & Recommendations37 days until leaf cert expires — 4 issues to addressREVIEW
Certificate validity
Recommended actions
- Add includeSubDomains to the HSTS directive
- Add the preload directive and submit to hstspreload.org once max-age + includeSubDomains are in place
- Enable DNSSEC on your domain for DNS spoofing protection
- Enable OCSP stapling on your TLS server to remove a CA roundtrip and protect user privacy
A+DNS Records2 A records, 53 ms lookupPASS
| A | 199.16.172.194, 199.16.173.203 |
| AAAA | — |
| CNAME | — |
| NS | karl.ns.cloudflare.com, vida.ns.cloudflare.com |
| MX | 1 aspmx.l.google.com 5 alt2.aspmx.l.google.com 5 alt1.aspmx.l.google.com 10 alt4.aspmx.l.google.com 10 alt3.aspmx.l.google.com |
| TXT | detectify-verification=ceefc280c1e72a2044d800c0f2cbcabc google-site-verification=3VxSAytdKFImihTrHWg3B2qeRRSpb93MbBlEnl_FozI google-site-verification=ElK2ER-FW9MciAHkJAk-Q02whR39riIbJcQTn2XR7lc google-site-verification=JCb3hfoJr-Cvc4qWt91FL2Rx3Ts5OWB4zA1AKHKaBM4 google-site-verification=j9GLXCECLzC2EA5AC5yxlEmVWEPiBz2mGux-j03cpS4 apple-domain-verification=OrTXfJ8QcS4bQb5jhSyUFy2wDfsqA5t0wCVqVkLOSqU brave-ledger-verification=ece0449451d6b003ad006d9c0b14c249d1c9378d7dc44bcb36b465... google-site-verification=EmvrNeX_YnwjqDpd2HQ3i5k-F0NxeSS2RbcNbD2X8Do docusign=18135b80-8c93-405c-8ca2-d5078af45621 google-site-verification=INCX1cAHgTpdnVliStSGv06DG5KfO-eX9XaDAE0W4Ic google-site-verification=oRBmOEbUHYBhtaETionhdGwQwlZDxTG2IxNsZ1SB8hI facebook-domain-verification=6tn0swmsb0n9oawnayi4wbbzqz4a02 google-site-verification=rEsYMyav8-3uzo7y3SoADXCZZkGkqI8t99rd67zDiV8 google-site-verification=TOABzycmGQuCwg2JYnvb6Ps7lMQP2dFMNJ22KJjoCcg SPF v=spf1 include:_spf.google.com include:_spf.smtp.com include:mail.zendesk.com ~a... klaviyo-site-verification=TKJEB5 |
| CAA | Lookup not available with standard resolver |
CAA record lookup requires a specialized DNS resolver. This check will be available in a future update.
Informational: CAA (Certification Authority Authorization) records weren't checked in this scan.
ARedirect Chain1 redirect(s), 278 ms totalPASS
https://sleepfoundation.org
30 ms · HTTP/1.1
https://www.sleepfoundation.org/
247 ms · HTTP/1.1 FINAL
| # | URL | Status | Time | Protocol | Server |
|---|---|---|---|---|---|
| 1 | https://sleepfoundation.org | 301 | 30 ms | HTTP/1.1 | nginx |
| 2 | https://www.sleepfoundation.org/ | 200 | 247 ms | HTTP/1.1 | nginx |
See the visual redirect chain in the HTTP Probe tab →
A+Crawlabilityrobots.txt present, sitemap with 7 URLsPASS
User-agent: *
Disallow: /readme.html
Disallow: /license.txt
Disallow: /xmlrpc.php
Disallow: /wp-admin
Allow: /wp-content/uploads
Allow: /wp-admin/admin-ajax.php
Sitemap: https://www.sleepfoundation.org/sitemap_index.xml
- https://www.sleepfoundation.org/page-sit...
- https://www.sleepfoundation.org/commerci...
- https://www.sleepfoundation.org/article-...
- https://www.sleepfoundation.org/press_re...
- https://www.sleepfoundation.org/person-s...
- https://www.sleepfoundation.org/basic-la...
- https://www.sleepfoundation.org/video-si...
A+Domain Intelligencesleepfoundation.org — via GoDaddy.com, LLC, 29 years, 10 months old, hosted on WordPress.com (Automattic)PASS
148 days
November 11, 2026
37 days
Issued by Let's Encrypt
29 years, 10 months
Registered November 12, 1996
Not enabled
Protects against DNS spoofing
WordPress.com (Automattic)
ASN AS2635
199.16.172.194
GoDaddy.com, LLC
Expiry timeline
Recommended actions
- Enable DNSSEC to protect visitors from DNS spoofing
- Enable registrar lock (clientTransferProhibited) to block unauthorized domain transfers
DNSSEC protects against DNS spoofing attacks. While not required, enabling DNSSEC adds an additional layer of security. Contact your DNS provider to enable it.
Without DNSSEC, an attacker who can poison your DNS can hijack your domain — and SSL certs alone don't stop them.
Learn more ▾ ▴
DNSSEC adds cryptographic signatures to DNS records, preventing forged responses from poisoning resolver caches. Without it, an attacker who controls the network path can redirect your domain to a malicious server before any HTTPS handshake happens. Most modern registrars (Cloudflare, Google Domains, Route 53) enable it with one toggle.
Source: ICANN / RFC 4033
The domain can be transferred without an unlock step. Enable registrar lock (clientTransferProhibited) in your registrar's control panel to protect against unauthorized or accidental transfers.
Without registrar lock, an attacker who phishes your registrar credentials can transfer the domain in minutes — total brand hijack.
Learn more ▾ ▴
Registrar lock (clientTransferProhibited, clientUpdateProhibited, clientDeleteProhibited) requires extra verification before any transfer/update/delete. Every major registrar offers it free. Combined with 2FA on your registrar account, it's the strongest defense against domain hijacking.
Source: ICANN / domain-security best practice