Infrastructure
· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.DURL VariantsActionwww/non-www, trailing slash, HTTP→HTTPSFIX
www / non-www
Inconsistent — duplicate content risk
HTTP → HTTPS
HTTP version does not redirect to HTTPS
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
BTLS Certificate Expiry & Recommendations50 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
ADNS Records1 A records, 908 ms lookupPASS
| A | 146.75.78.245 |
| AAAA | — |
| CNAME | — |
| NS | dns1.p08.nsone.net, dns2.p08.nsone.net, dns3.p08.nsone.net, dns4.p08.nsone.net, ns01.jetbluedns.com, ns02.jetbluedns.com, ns03.jetbluedns.com, ns04.jetbluedns.com |
| MX | 10 jetblue-com.mail.protection.outlook.com |
| TXT | MS=ms35944686 MS=ms84486056 tTbZKk8zyixpOCJBxyO6gyOOACVRUtCEL15besVWCh141KuTovHQvFzK7KLtnSFNgWC+4enLf2nTLvbz... SPF v=spf1 exists:%{i}._i.%{d}._d.espf.agari.com include:%{d}.e3.spf-protect.agari.c... google-site-verification=LfAOCCN1Wh-UYSUX53wX1IC8IOMDByBzM8NIfF7fAHY google-site-verification=U3lFyYXI7z7IDqB3yCwDXHvUTbBFZhZ3w74J1R-mCj8 google-site-verification=CTdix66ACoJS5PO2j6x388VRcEqdB-ZV1rbWKSKp0ZE _globalsign-domain-verification=VPemhDee0EKRXi0IPzeSUrn849jHevrjIaTeDYOTZ4 apple-domain-verification=wccSN5Ce5ro3FLEv atlassian-domain-verification=iup5C4bb2YQC58WxIgfs9WC2YvCppYaOO4OAVI9q9rjCXn8YiH... airtable-verification=fe12edb25a33c12cfe81050dd8473dac RJWbYEO4K+sYqts4DcN9o2mWR2UKKj1wxuBPoiA5Aha63+qHC6ATXIeTc+slDPt1Iipf+Etc3Y1fcVYC... smartsheet-site-validation=-Q7rBBNh9qJMZXtiV1dRuOHFoCaJcqje bw=P+O2u+gVwi1Y9AaYmz+jBYxAVKhhe35XGCq/frHJohh/ openai-domain-verification=dv-dv3P5PcDDOXoICS8cXMjOZwX h1-domain-verification=jVNq6vV5ti4DaTAQVAaJhAvnyZzT3WdkcVypXNBGTqVaq8kn cisco-ci-domain-verification=114fc3b81f20e29b8c5124fe4093435dfe7e010648dec071ac9... _7szey1rcn4xyw40jempoxh95vynne0b successfactors-site-verification=OWU5ZTM1NWQ5ZTU2OTEzZTk2OWZkMGYwZjg2Mjk0ODZlM2Y... klaviyo-site-verification=SQMfvC klaviyo-site-verification=SuL5FJ _1xigychqc6hw00worbdsctmesdsp82v sprout-social-7f84792a-5c74-4451-b560-f344f90732b3 onetrust-domain-verification=0a90be8c45c045a480dfb2e949730dff onetrust-domain-verification=49e130fe01a14324b36d9bdd5b2606f1 |
| 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.
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), 672 ms totalPASS
https://jetblue.com
524 ms · HTTP/1.1
https://www.jetblue.com/
147 ms · HTTP/1.1 FINAL
| # | URL | Status | Time | Protocol | Server |
|---|---|---|---|---|---|
| 1 | https://jetblue.com | 301 | 524 ms | HTTP/1.1 | Varnish |
| 2 | https://www.jetblue.com/ | 200 | 147 ms | HTTP/1.1 |
See the visual redirect chain in the HTTP Probe tab →
A+Crawlabilityrobots.txt present, sitemap with 372 URLsPASS
User-Agent: *
Disallow: /manageflights/flightnotification/
Disallow: /vacations/Login
Disallow: /boardingpass/
Allow: /
Sitemap: https://www.jetblue.com/magnoliapublic/.rest/sitemap/v1/seo/home/sitemap.xml
Sitemap: https://www.globalsiteseo.com/jetblue.GSM/jetblue.gsm.index.en_super.xml
Sitemap: https://www.globalsiteseo.com/jetblue.GSM/jetblue.gsm.index.fr_super.xml
Sitemap: https://www.globalsiteseo.com/jetblue.GSM/jetblue.gsm.index.es_super.xml
Sitemap: https://www.jetblue.com/sitemap_index.xml
ADomain Intelligencejetblue.com — via CSC Corporate Domains, Inc., 27 years, 2 months old, hosted on FastlyPASS
EXPIRED
June 30, 2026
50 days
Issued by Let's Encrypt
27 years, 2 months
Registered June 30, 1999
Not enabled
Protects against DNS spoofing
Fastly
ASN AS54113
146.75.78.245
CSC Corporate Domains, Inc.
Expiry timeline
Recommended actions
- Domain has EXPIRED — renew immediately to avoid total site outage
- Enable DNSSEC to protect visitors from DNS spoofing
- Enable registrar lock (clientTransferProhibited) to block unauthorized domain transfers
Consider enabling auto-renewal to prevent accidental expiration.
Domain expiry approaching — renew immediately and ensure auto-renew + alerting are configured.
Source: ICANN renewal policy
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