Infrastructure
· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.BTLS Certificate Expiry & Recommendations70 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
BCDN & DeliveryCloudflareREVIEW
A+DNS Records2 A records, 99 ms lookupPASS
| A | 104.18.27.244, 104.18.26.244 |
| AAAA | 2606:4700::6812:1af4, 2606:4700::6812:1bf4 |
| CNAME | — |
| NS | ns0054.secondary.cloudflare.com, ns0249.secondary.cloudflare.com |
| MX | 50 amnh-org.mail.protection.outlook.com |
| TXT | google-site-verification=rW816e65DGHXTd65sxOohEGLNRICNreIWBjyqWQQQf8 docusign=7ec8783b-b0ba-4faf-88dd-3c3aa2091921 amazonses:v78qm8SxhlBwzgaajn9b4kb+DKVtzQImF/tXkhTo85g= 3TETP7VGGAWK0MKD75G204S0K5FDIBHLY94NU0KQR facebook-domain-verification=b2cgvxixfi34pky4z3br1kcnuj1yrn apple-domain-verification=FsXMEFQH0igp1w8U adobe-idp-site-verification=88438defd347f9df4d612e61d1b1db931ac6ff0a8243d331aaba... SPF v=spf1 ip4:52.124.61.3 ip4:202.3.8.210 ip4:69.65.34.61 ip4:69.65.34.50 ip4:66.24... _globalsign-domain-verification=F7RbCoyz-kgrUoaS_iKhAK_qUZ74Z8fHn00y31UmO3 adobe-sign-verification=4a06b4ec7ed6890eed7d5aa7a4c50983 browserstack-domain-verification=ef895b04-3a90-4127-91b3-4f5bc37a6ddc ecostruxure-it-verification=78f50f6d-b7bd-4458-a4c0-627ceb10c014 atlassian-domain-verification=mIMAnURoL5GXM5AoKBFU13tScudd5u8Z234SBDaOVQoK0XaSCg... fastly-domain-delegation-J48hGfXU1JeVcvGhv-467262-2022-02-24 5AhlCQYFqEetZOfvYALlUHMZ3wDyRr3yMoD8PYYG2v8v0XahNHyQ1VaZgn1xarFSu8lXHjC1rbgrFXQj... ca3-ae6d311a0070441cb2015966d9b019b8 jamf-site-verification=EK3TtxGlCZiPv39DYGrqjg ca3-96194815295d40f2a95f5aca05234588 |
| 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.
ARedirect Chain1 redirect(s), 256 ms totalPASS
https://amnh.org
59 ms · HTTP/1.1
https://www.amnh.org/
197 ms · HTTP/1.1 FINAL
| # | URL | Status | Time | Protocol | Server |
|---|---|---|---|---|---|
| 1 | https://amnh.org | 301 | 59 ms | HTTP/1.1 | cloudflare |
| 2 | https://www.amnh.org/ | 200 | 197 ms | HTTP/1.1 | cloudflare |
See the visual redirect chain in the HTTP Probe tab →
A+IPv6 ReadinessIPv6 reachable (17 ms)PASS
ACrawlabilityrobots.txt present, sitemap with 0 URLsPASS
An empty sitemap provides no value. Add <url> entries for your pages.
An empty sitemap signals 'no content to index' to Google — actively harmful versus having no sitemap at all.
Learn more ▾ ▴
Google compares URLs in the sitemap against URLs it has crawled. An empty sitemap on a site with thousands of pages signals abandonment. Either populate it correctly (most CMSes auto-generate) or delete the file and let Google crawl normally.
Source: Google Search Central / sitemaps.org
User-agent: *
Allow: /about/press-center
Disallow: /*/site-settings
Disallow: /*amphtml
Disallow: /*offset)
Disallow: /*regonly
Disallow: /*showpast
Disallow: /content/search*
Disallow: /email-subscription-update
Disallow: /email-unsubscribe
Disallow: /layout/set/*
Disallow: /learn/coursera/*
Disallow: /lp/*
Disallow: /mediatrans/*
Disallow: /system-maintenance
Disallow: /cloudflare/*
Sitemap: https://www.amnh.org/sitemap.xml
A+URL Variantswww/non-www, trailing slash, HTTP→HTTPSPASS
www / non-www
HTTP → HTTPS
Consistent
A+Domain Intelligenceamnh.org — via Network Solutions, LLC, 35 years, 6 months oldPASS
634 days
April 13, 2028
70 days
Issued by Let's Encrypt
35 years, 6 months
Registered April 12, 1991
Not enabled
Protects against DNS spoofing
Unknown
2606:4700::6812:1bf4
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