Infrastructure
· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.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 & Recommendations33 days until leaf cert expires — 3 issues to addressREVIEW
Certificate validity
Recommended actions
- Enable HSTS: Strict-Transport-Security: max-age=31536000; includeSubDomains
- 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 Records1 A records, 45 ms lookupPASS
| A | 192.124.249.113 |
| AAAA | — |
| CNAME | — |
| NS | ns4.dnsimple.com, ns1.dnsimple.com, ns3.dnsimple.com, ns2.dnsimple.com |
| MX | 0 aspmx.l.google.com 10 alt1.aspmx.l.google.com 10 alt2.aspmx.l.google.com 25 aspmx3.googlemail.com 25 aspmx2.googlemail.com |
| TXT | ALIAS for www.nngroup.com google-site-verification=kyKsox8uvugkyoBLGufbebnw7LDgx8ZkCszXdonndtk CF9424EB1D google-site-verification=Nkz-QAR-TpsDAoezza4B_kBCbO4J3_eW9KRtiTkmFMk SPF v=spf1 include:teamdesk.net include:amazonses.com include:_spf.google.com inclu... google-site-verification=yyaEQxusOE5A3328gnCZrCr7VcLdIKXSBW1NbRpQpb8 |
| CAA | Lookup not available with standard resolver |
Multiple A records provide failover if one server goes down.
Single A record means a single point of failure — if that IP goes down, your site is unreachable until DNS TTL expires.
Learn more ▾ ▴
Add multiple A records for round-robin failover, or use a managed DNS provider with health-checked failover (Route 53, Cloudflare, NS1). Short TTL (60-300s) lets clients recover faster on outages.
Source: SRE practice / DNS architecture
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), 212 ms totalPASS
https://nngroup.com
69 ms · HTTP/1.1
https://www.nngroup.com/
143 ms · HTTP/1.1 FINAL
| # | URL | Status | Time | Protocol | Server |
|---|---|---|---|---|---|
| 1 | https://nngroup.com | 301 | 69 ms | HTTP/1.1 | Sucuri/Cloudproxy |
| 2 | https://www.nngroup.com/ | 200 | 143 ms | HTTP/1.1 | Sucuri/Cloudproxy |
See the visual redirect chain in the HTTP Probe tab →
A+Crawlabilityrobots.txt present, sitemap with 2681 URLsPASS
Add a 'Sitemap:' directive to robots.txt so search engines can discover your sitemap.
robots.txt omits Sitemap: directive — crawlers must fetch /sitemap.xml by convention; reliable but missing the explicit hint.
Source: sitemaps.org
User-agent: AccompanyBot
Disallow: /
User-agent: AwarioRssBot
Disallow: /
User-agent: AwarioSmartBot
Disallow: /
User-agent: AhrefsBot
Disallow: /
User-agent: BLEXBot
Disallow: /
User-agent: BLP_bbot
Disallow: /
User-agent: CCBot
Disallow: /
User-agent: chimebot
Disallow: /
User-agent: MJ12bot
Disallow: /
User-agent: Screaming Frog SEO Spider
Disallow: /
User-agent: Semanticbot
Disallow: /
User-agent: SemrushBot
Disallow: /
User-agent: startmebot
Disallow: /
User-agent: *
Crawl-Delay: 60
Disallow: /cart/
Disallow: /login/
Disallow: /search/
Disallow: /training/ajax/
Disallow: /training/registration/
Disallow: /training/register/
A+Domain Intelligencenngroup.com — via GoDaddy.com, LLC, 28 years, 1 months old, hosted on SUCURI-SEC - Sucuri, USPASS
938 days
January 9, 2029
33 days
Issued by Starfield Technologies, Inc.
28 years, 1 months
Registered August 7, 1998
Not enabled
Protects against DNS spoofing
SUCURI-SEC - Sucuri, US
ASN AS30148
192.124.249.113
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