Infrastructure
· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.DCDN & DeliveryActionNo CDN detectedFIX
Consider using a CDN to improve global delivery speed and reduce origin load.
BRedirect Chain1 redirect(s), 1052 ms totalREVIEW
https://aaos.org
385 ms · HTTP/1.1
https://www.aaos.org/
667 ms · HTTP/1.1 FINAL
| # | URL | Status | Time | Protocol | Server |
|---|---|---|---|---|---|
| 1 | https://aaos.org | 301 | 385 ms | HTTP/1.1 | |
| 2 | https://www.aaos.org/ | 200 | 667 ms | HTTP/1.1 |
See the visual redirect chain in the HTTP Probe tab →
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 & Recommendations131 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, 53 ms lookupPASS
| A | 172.171.25.79 |
| AAAA | — |
| CNAME | — |
| NS | pdns77.ultradns.org, pdns77.ultradns.biz, pdns77.ultradns.net, pdns77.ultradns.com |
| MX | 10 us-smtp-inbound-1.mimecast.com 10 us-smtp-inbound-2.mimecast.com |
| TXT | aaos-app-prod-epi01.azurewebsites.net ckcwlk137r3yflnrdcxq0158hk85rxjz atlassian-domain-verification=wbf1x9dfLXyZJIfwl8mC+3JONdGjc1zbKpYCUQmAC2FLhlv/0I... google-site-verification=uUgOipwYJpqgIFu5-AIcbqns_1UvmG75Eupg_XaaNJ8 anthropic-domain-verification-be05b9=uL1xpplzLMutxwAnYUVw8ISPN u9qaldq2mql9d1rt9jmjehkecg vj0013j1qf909m7s1276lfmjkg SPF v=spf1 redirect=ciqi3fw7._spf._d.mim.ec google-site-verification=tiQ8Qv39ziNUZMS7JHZ68iYfUw85TiMdBvYyPUIJwfo |
| 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.
A+Crawlabilityrobots.txt present, sitemap with 2935 URLsPASS
Sitemap: http://www.aaos.org/standard_sitemap.xml
Sitemap: http://www.aaos.org/mobile_sitemap.xml
- http://www.aaos.org/about/meet-aaos/leadership-governance/aaos-leadership-institute/ali-level-4/participants/ali-level-4-class-2022/
- http://www.aaos.org/aaosnow/2024/march-april/commentary/commentary01/
- http://www.aaos.org/aaosnow/2024/march-april/clinical/heron-sponsored-content/
- http://www.aaos.org/aaosnow/2024/may/youraaos/youraaos03/
- http://www.aaos.org/aaosnow/2024/jul/youraaos/youraaos01/
A+Domain Intelligenceaaos.org — via Network Solutions, LLC, 31 years, 5 months old, hosted on Microsoft AzurePASS
1397 days
April 11, 2030
131 days
Issued by GoDaddy.com, Inc.
31 years, 5 months
Registered April 10, 1995
Not enabled
Protects against DNS spoofing
Microsoft Azure
ASN AS8075
172.171.25.79
Network Solutions, 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