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 & Recommendations82 days until leaf cert expires — 3 issues to addressREVIEW
Certificate validity
Recommended actions
- 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
ADNS Records2 A records, 264 ms lookupPASS
| A | 172.66.147.83, 104.20.23.170 |
| AAAA | 2606:4700:10::ac42:9353, 2606:4700:10::6814:17aa |
| CNAME | — |
| NS | norm.ns.cloudflare.com, vera.ns.cloudflare.com |
| MX | 0 lung-org.mail.protection.outlook.com |
| TXT | 00050318 92c51b6d608dce7c617e5784d3334bf75130a41519c4c38385b014978e51ea3f CWJNbj5qqQg/p5FXBUnh5NPiA0aQm4JEhM0ZQ/cnXoLl5IEDP5Px/90tt2kkNxppS8bRohuJNTXwsOpz... ala-web-prod-mvc-app.azurewebsites.net apple-domain-verification=AZw6FqNKM2EnmygY box-domain-verification=6764ba04be1ebd23a282874c4a00a98369e76b77dcfd676938d44b78... facebook-domain-verification=hhq69hsrmg9e2lj7qvffg3x8voxxua google-site-verification=46EaCJsM6oXmRZlavDDkqEKd3uEn52s6RmL5r9IcS8s google-site-verification=8IZcdsD6-3NvAv38NhHo0f_5_FsDyrsxZVFVdskHtVg google-site-verification=BszypzrUn6nUVk09OJWPOT_b25y-4Hs5lNAtsbzDwEk google-site-verification=PUtMrEg_qKKTSWJqLqQKT_7H4dQTTbR99aORz_1TmuQ sophos-domain-verification=fdcef3bb244bea2b8d850744b654e570efc227e65f6c67d002c77... stripe-verification=FDC588A2D39D155AD03FED92AE1237A408B57A046986EF9892A7FF45F004... v=BIMI1;l=https://bimi.entrust.net/lung.org/logo.svg;a=https://bimi.entrust.net/... SPF v=spf1 include:spf.protection.outlook.com include:outboundmail.blackbaud.net inc... |
| 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), 789 ms totalPASS
https://lung.org
513 ms · HTTP/1.1
https://www.lung.org/
275 ms · HTTP/1.1 FINAL
| # | URL | Status | Time | Protocol | Server |
|---|---|---|---|---|---|
| 1 | https://lung.org | 301 | 513 ms | HTTP/1.1 | cloudflare |
| 2 | https://www.lung.org/ | 200 | 275 ms | HTTP/1.1 | cloudflare |
See the visual redirect chain in the HTTP Probe tab →
A+IPv6 ReadinessIPv6 reachable (1 ms)PASS
A+Crawlabilityrobots.txt present, sitemap with 13680 URLsPASS
User-agent: Swiftbot
Disallow:
User-agent: *
Disallow: /search
Sitemap: https://www.lung.org/sitemap.xml
A+Domain Intelligencelung.org — via GoDaddy.com, LLC, 29 years, 1 months oldPASS
63 days
August 18, 2026
82 days
Issued by Google Trust Services
29 years, 1 months
Registered August 19, 1997
Not enabled
Protects against DNS spoofing
Unknown
2606:4700:10::6814:17aa
GoDaddy.com, LLC
Expiry timeline
Recommended actions
- Renew the domain or enable auto-renewal to prevent accidental expiry
- 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