Infrastructure
· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.BURL Variantswww/non-www, trailing slash, HTTP→HTTPSREVIEW
www / non-www
Inconsistent — duplicate content risk
HTTP → HTTPS
Consistent
BTLS Certificate Expiry & Recommendations107 days until leaf cert expires — 3 issues to addressREVIEW
Certificate validity
Recommended actions
- Submit your domain to hstspreload.org to be added to the Chrome preload list
- 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 Records4 A records, 49 ms lookupPASS
| A | 151.101.2.114, 151.101.194.114, 151.101.66.114, 151.101.130.114 |
| AAAA | 2a04:4e42::626, 2a04:4e42:400::626, 2a04:4e42:200::626, 2a04:4e42:600::626 |
| CNAME | — |
| NS | ns-cloud-e1.googledomains.com, ns-cloud-e3.googledomains.com, ns-cloud-e2.googledomains.com, ns-cloud-e4.googledomains.com |
| MX | 1 aspmx.l.google.com 5 alt1.aspmx.l.google.com 5 alt2.aspmx.l.google.com 10 alt3.aspmx.l.google.com 10 alt4.aspmx.l.google.com |
| TXT | google-site-verification=1Q7E_o_fcik3HTCdhgqWhULWNp3Tc3V8UbdFiv9usvI atlassian-domain-verification=ipTaHvUYHB5m2sGAHn+wb0QAZaDU1OhT9I1zWtt5qbn81IDeYB... google-site-verification=KzzqYTzZ6c_YEowjKkmu7woBL2G9Z0VQgiR5nh8ndVc 1password-site-verification=C4VBIWTNYFER5OOCHVJU2MTAII atlassian-sending-domain-verification=762db5fe-698c-4d93-a0ed-b4415055f802 openai-domain-verification=dv-yY4DT4HIbXcor9KCr4MnxLCE SPF v=spf1 ip4:46.235.224.245/32 ip4:104.130.74.24/32 include:_spf.google.com includ... docker-verification=7eaae4cf-2bdb-4528-8c12-ae3ec18d9dac google-site-verification=3dYE5o6tXr58Ifp_dTq21Pe78QFiWgA_ZgLviwczyGY google-site-verification=aKR17QT6FyB3SwlRCUfJkYW82P0uU_4vIk3iBGjb7wY google-site-verification=dSJYQW_buweb2dPfaXPJslY-ccmx_zIGbR1hffFU1fs apple-domain-verification=i0pfFG8KLQYxra5p google-site-verification=E1u4QIF_yGIEmo1_LSfDWeP9pWQEnzSuunTGXfluvWc veremark-domain-verification-33mmwa=KKsw5Pt7DBoDmOCIqokf0wEqo docusign=344e3a2e-fe49-42a4-b5ae-fd23dcc0b72f slack-domain-verification=iRSAt0gjfeLmlsS50OKy7pZFFt8ANdQdAhdnH33t have-i-been-pwned-verification=7528d8520a54a3233cb42c26bef59498 adobe-idp-site-verification=8233cb63a0e1bc2cf5b686c37454a22cd3684022d171c40d9a7c... anthropic-domain-verification-deaz83=yHN9eCQxU1mw3wByrETKFQYGG asv=d97e483b7a01012ed7d4a3571fc4f5fe MS=ms15291863 google-site-verification=cm0ud8DosbawIseioZWR5-l6uLFogwEYR8OpHXcWe1w google-site-verification=IHur8NDPA0N7kMAF1f2q_vJ-Rk7S8hxpcvn92sEew-s |
| 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), 48 ms totalPASS
https://yubico.com
10 ms · HTTP/1.1
https://www.yubico.com/
38 ms · HTTP/1.1 FINAL
| # | URL | Status | Time | Protocol | Server |
|---|---|---|---|---|---|
| 1 | https://yubico.com | 301 | 10 ms | HTTP/1.1 | |
| 2 | https://www.yubico.com/ | 200 | 38 ms | HTTP/1.1 |
See the visual redirect chain in the HTTP Probe tab →
A+IPv6 ReadinessIPv6 reachable (0 ms)PASS
A+Crawlabilityrobots.txt present, sitemap with 7 URLsPASS
User-agent: *
Disallow: /documentation/
Disallow: /*?s=
Disallow: /*&s=
Sitemap: https://www.yubico.com/store/sitemap.xml
Sitemap: https://www.yubico.com/sitemap_index.xml
A+Domain Intelligenceyubico.com — via MarkMonitor Inc., 19 years, 7 months oldPASS
887 days
December 21, 2028
107 days
Issued by GlobalSign nv-sa
19 years, 7 months
Registered December 21, 2006
Not enabled
Protects against DNS spoofing
Unknown
2a04:4e42:200::626
MarkMonitor Inc.
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