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
BCrawlabilityno robots.txt, no sitemapREVIEW
robots.txt is optional but recommended. It tells search engine crawlers which pages to index.
No robots.txt — crawlers fetch /robots.txt and get 404; not breaking but means default crawl behavior with no directives or sitemap reference.
Learn more ▾ ▴
A minimal robots.txt with `User-agent: * / Allow: / / Sitemap: https://example.com/sitemap.xml` covers the basics. Without it, crawlers behave fine but lose the sitemap signal and can't be selectively blocked from crawl-traps.
Source: robotstxt.org
A sitemap helps search engines discover and index your pages more efficiently.
No sitemap.xml — Google relies on crawl-graph discovery alone, slowing indexing of deep or fresh URLs.
Learn more ▾ ▴
A sitemap accelerates Google's discovery of new and updated content. Most CMSes auto-generate one; static-site frameworks need a build-step plugin. Reference it from robots.txt and submit in Search Console to confirm Google can fetch it.
Source: sitemaps.org / Google Search Central
No robots.txt found
This is fine for most sites — a missing robots.txt allows all crawling by default.
No sitemap found
Adding a sitemap helps search engines discover your pages.
BTLS Certificate Expiry & Recommendations70 days until leaf cert expires — 2 issues to addressREVIEW
Certificate validity
Recommended actions
- Enable HSTS: Strict-Transport-Security: max-age=31536000; includeSubDomains
- Enable OCSP stapling on your TLS server to remove a CA roundtrip and protect user privacy
BCDN & DeliveryCloudflareREVIEW
A+DNS Records2 A records, 111 ms lookupPASS
| A | 172.66.0.66, 162.159.140.66 |
| AAAA | — |
| CNAME | — |
| NS | ens1.jhu.edu, ens1.jhmi.edu |
| MX | — |
| TXT | nbj2qlg9f01b0bdho2tlkqg08j google-site-verification=lDcK-sQeNha77BoS46BrASO1gdssIppd7VBugAz-ybs SPF v=spf1 ip4:128.220.39.0/24 ip4:162.129.199.0/24 a mx ptr include:icpbounce.com ~... google-site-verification=acXr4TrlXqfFvE4LqSXrs8lqxB7brESuTq90V_l3oA8 onetrust-domain-verification=bfbba65ba4e0466bb48915af7243042c ca3-bccab62bd1fe44adbf3749885c7bc271 globalsign-domain-verification=FCFAED1046A23D3206526D2AC0F10839 google-site-verification=42Xb-kZtGymqFrEYMbuHN5HnaWpLgWpuMI6Npk_j9Bk facebook-domain-verification=csdmc58zuugvdgvteb2e45h4576qd5 |
| 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.
A+Redirect Chain0 redirect(s), 58 ms totalPASS
https://hopkinsmedicine.org
58 ms · HTTP/1.1 FINAL
| # | URL | Status | Time | Protocol | Server |
|---|---|---|---|---|---|
| 1 | https://hopkinsmedicine.org | 403 | 58 ms | HTTP/1.1 | cloudflare |
A+URL Variantswww/non-www, trailing slash, HTTP→HTTPSPASS
www / non-www
HTTP → HTTPS
Consistent
A+Domain Intelligencehopkinsmedicine.org — via Network Solutions, LLC, 26 years, 8 months old, hosted on CloudflarePASS
2705 days
December 10, 2033
70 days
Issued by Let's Encrypt
26 years, 8 months
Registered December 10, 1999
Enabled
Protects against DNS spoofing
Cloudflare
ASN AS13335
172.66.0.66
Network Solutions, LLC
Expiry timeline
Recommended actions
- Enable registrar lock (clientTransferProhibited) to block unauthorized domain transfers
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