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 & Recommendations244 days until leaf cert expires — 5 issues to addressREVIEW
Certificate validity
Recommended actions
- Extend HSTS max-age to at least 31536000 (1 year) to meet the preload list criteria
- 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
BCDN & DeliveryAkamaiREVIEW
A+DNS Records1 A records, 39 ms lookupPASS
| A | 2.16.39.74 |
| AAAA | 2a02:26f0:e0:4a4::2328, 2a02:26f0:e0:4ab::2328 |
| CNAME | — |
| NS | a13-67.akam.net, a1-245.akam.net, a9-64.akam.net, a28-67.akam.net, a4-64.akam.net, a18-64.akam.net |
| MX | 10 spirit.com.1.arsmtp.com 20 spirit.com.2.arsmtp.com |
| TXT | cisco-ci-domain-verification=57b8663438cd07923816db33dd5f03b3d9d3e9bf99b61f4ffa3... google-site-verification=_f3fFuGwOQMzwZ_2R71sZBMz8zpKYkp0cmzcZyXb_X4 _zy2nc1j0zyd7vq6oiuidphhtc0dxebp darktrace-active-ai-security-portal=2686e503-a00c-4f7b-b6f7-5efa0907d013 docusign=278f80a5-c76b-4fdc-a612-4d9ee35ab350 SPF v=spf1 a mx ip4:38.103.84.0/24 ip4:40.85.148.145 ip4:199.59.200.201 ip4:54.240.5... msfpkey=4yxl5mwzi16knwdo1ji091s0w |
| 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), 226 ms totalPASS
https://spirit.com
10 ms · HTTP/1.1
https://www.spirit.com/
216 ms · HTTP/1.1 FINAL
| # | URL | Status | Time | Protocol | Server |
|---|---|---|---|---|---|
| 1 | https://spirit.com | 301 | 10 ms | HTTP/1.1 | AkamaiGHost |
| 2 | https://www.spirit.com/ | 200 | 216 ms | HTTP/1.1 | AkamaiNetStorage |
See the visual redirect chain in the HTTP Probe tab →
A+IPv6 ReadinessIPv6 reachable (0 ms)PASS
A+Crawlabilityrobots.txt present, sitemap with 369 URLsPASS
User-agent: *
Sitemap: https://www.spirit.com/sitemap.xml
A+Domain Intelligencespirit.com — via GoDaddy.com, LLC, 32 years, 6 months oldPASS
982 days
March 21, 2029
244 days
Issued by DigiCert Inc
32 years, 6 months
Registered March 20, 1994
Not enabled
Protects against DNS spoofing
Unknown
2a02:26f0:e0:4a4::2328
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