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
CURL VariantsActionwww/non-www, trailing slash, HTTP→HTTPSREVIEW
www / non-www
Inconsistent — duplicate content risk
HTTP → HTTPS
Use 301 (permanent) instead of 302 (temporary)
BTLS Certificate Expiry & Recommendations41 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
BCDN & DeliveryCloudflareREVIEW
ADNS Records3 A records, 1199 ms lookupPASS
| A | 104.20.35.98, 172.66.147.145, 108.162.192.2 |
| AAAA | — |
| CNAME | — |
| NS | authns2.netcraft.com, authns1.netcraft.com |
| MX | 5 mail-1a.netcraft.com 10 mail-1c.netcraft.com |
| TXT | 1password-site-verification=ZA553LO4H5D7DLOSEEVMANPY7U SPF v=spf1 ip4:194.72.238.0/24 ip4:91.236.66.192/29 ip4:52.31.138.216/32 ip4:52.19.9... adobe-idp-site-verification=09537a9e1085d784a149eb5042eef1bc9a8de3f85b46e68b3ef0... facebook-domain-verification=q84ext6g441elo2m1niy7d42k2t6qi atlassian-domain-verification=URvw4QypMibuOCaPklcKUHFwYVkgdVIPaKAiaD2H3bgKgmFYXu... cursor-domain-verification-twtv0p=x1nt7nUHdw6GCZszJez9K67Df google-site-verification=0mypX-WqeL_8PkENmV37EH_tBQa2UK7M3F8VP5VaqkU mongodb-site-verification=vm70hiALv18h4WOLhEDIsB6i1PLZX3fb cloudflare-verify.netcraft.com=342358972-2078293 apple-domain-verification=aF57I5qoi6LLlJiu google-site-verification=xK788d_bQ9v17KsJDWBsc1Ilw_RQrV6ONCkDUrPnJBE netcraft.com=ca3-f80c908d0460420ea415db4073b0a29c google-site-verification=CY7gTbw6-qe_zYUy_AUjZNYnwll3m0udP8C-khCrRYE docusign=134e8b44-f6f4-408b-b0f0-9b5fccdb834a amazon-business-verification=1c9e5854fc7634f56fc4cec84cdde8b8beb74c609e88a9d75bf... incident.netcraft.com=ca3-375613219ce04e68b6648d466cc99e37 MS=ms49835954 jetbrains-domain-verification=9jyzvn1i2e9ngqfogqbjw2xrd 2H34Q8VH72QhUtCduv7OEbsvE1LLryylb1E9aZsVh4eaB37nLqpLM5B3UnMw86cOHU4n1RxuB2eCTfno... openai-domain-verification=dv-21e2PYdryYmRKr3bz0bLg3Br ahrefs-site-verification_4f46fda8c441afe71a611fd95e5cb02672d3d760130de776183c4c7... anthropic-domain-verification-9cp84d=k4GUIpciFYaEwKsGL7RqsTQVO atlassian-sending-domain-verification=d7bd07f1-665f-470e-93c1-bf27e5898d17 _z5gclenbg290wn5dbl0hgy8w1s7ltco |
| 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.
Slow DNS adds latency to every page load. Consider a faster DNS provider.
DNS resolution is slow — anycast DNS providers (Cloudflare, Route 53) typically resolve <50ms globally.
Source: DNS performance benchmarks
ARedirect Chain1 redirect(s), 412 ms totalPASS
https://netcraft.com
186 ms · HTTP/1.1
https://www.netcraft.com/
226 ms · HTTP/1.1 FINAL
| # | URL | Status | Time | Protocol | Server |
|---|---|---|---|---|---|
| 1 | https://netcraft.com | 302 | 186 ms | HTTP/1.1 | cloudflare |
| 2 | https://www.netcraft.com/ | 200 | 226 ms | HTTP/1.1 | cloudflare |
See the visual redirect chain in the HTTP Probe tab →
If permanent, use 301 instead.
302 (Found) is for genuinely temporary redirects — if this redirect is permanent, switch to 301 to preserve SEO equity.
Learn more ▾ ▴
Search engines treat 302 as temporary, keeping the original URL indexed and not transferring full link equity to the destination. Use 301 (Moved Permanently) for permanent redirects (HTTP→HTTPS, www-vs-non-www, URL restructures).
Source: Google Search Central
A+Crawlabilityrobots.txt present, sitemap with 585 URLsPASS
User-agent: *
Allow: /
Sitemap: https://www.netcraft.com/sitemap.xml
- https://www.netcraft.com/
- https://www.netcraft.com/company/about-us
- https://www.netcraft.com/company/corporate-social-responsibility
- https://www.netcraft.com/platform/threat-detection-and-takedown/deep-and-dark-web-monitoring
- https://www.netcraft.com/platform/threat-intelligence/phishing-kit-analysis
A+Domain Intelligencenetcraft.com — via MarkMonitor Inc., 31 years, 11 months old, hosted on CloudflarePASS
3045 days
October 17, 2034
41 days
Issued by Google Trust Services
31 years, 11 months
Registered October 18, 1994
Not enabled
Protects against DNS spoofing
Cloudflare
ASN AS13335
104.20.35.98
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