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.
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
BCrawlabilityrobots.txt present, no sitemapREVIEW
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
Add a 'Sitemap:' directive to robots.txt so search engines can discover your sitemap.
robots.txt omits Sitemap: directive — crawlers must fetch /sitemap.xml by convention; reliable but missing the explicit hint.
Source: sitemaps.org
#
# robots.txt
#
# This file is to prevent the crawling and indexing of certain parts
# of your site by web crawlers and spiders run by sites like Yahoo!
# and Google. By telling these "robots" where not to go on your site,
# you save bandwidth and server resources.
#
# This file will be ignored unless it is at the root of your host:
# Used: http://example.com/robots.txt
# Ignored: http://example.com/site/robots.txt
#
# For more information about the robots.txt standard, see:
# http://www.robotstxt.org/robotstxt.html
User-agent: *
Crawl-delay: 1
# CSS, JS, Images
Allow: /core/*.css$
Allow: /core/*.css?
Allow: /core/*.js$
Allow: /core/*.js?
Allow: /core/*.gif
Allow: /core/*.jpg
Allow: /core/*.jpeg
Allow: /core/*.png
Allow: /core/*.svg
Allow: /profiles/*.css$
Allow: /profiles/*.css?
Allow: /profiles/*.js$
Allow: /profiles/*.js?
Allow: /profiles/*.gif
Allow: /profiles/*.jpg
Allow: /profiles/*.jpeg
Allow: /profiles/*.png
Allow: /profiles/*.svg
# Directories
Disallow: /core/
Disallow: /profiles/
# Files
Disallow: /README.txt
Disallow: /web.config
# Paths (clean URLs)
Disallow: /admin/
Disallow: /comment/reply/
Disallow: /filter/tips
Disallow: /node/add/
Disallow: /search/
Disallow: /user/register/
Disallow: /user/password/
Disallow: /user/login/
Disallow: /user/logout/
# Paths (no clean URLs)
Disallow: /index.php/admin/
Disallow: /index.php/comment/reply/
Disallow: /index.php/filter/tips
Disallow: /index.php/node/add/
Disallow: /index.php/search/
Disallow: /index.php/user/password/
Disallow: /index.php/user/register/
Disallow: /index.php/user/login/
Disallow: /index.php/user/logout/
# CUSTOM CONFIG BELOW
Disallow /redirects/
# Filterable view pages
Disallow: /research/findings/evidence-based-reports/search.html?
Disallow: /research/findings/studies/index.html?
Disallow: /news/newsletters/e-newsletter/index.html?
Disallow: /news/events/other/index.html?
Disallow: /news/newsroom/press-releases/index.html?
Disallow: /news/newsroom/noticias/index.html?
Disallow: /news/newsroom/articles-of-interest/index.html?
Disallow: /news/newsroom/case-studies/index.html?
Disallow: /cahps/bibliography/index.html?
Disallow: /cahps/surveys-guidance/item-sets/search.html?
Disallow: /cahps/faq/index.html?
Disallow: /programs/index.html?
Disallow: /tools/index.html?
Disallow: /data/dataresources/index.html?
# PBRN Registry filtered pages - prevent aggressive bot crawling
Disallow: /ncepcr/communities/pbrn/registry/index.html?
# Block aggressive AI/ML bots from PBRN Registry
User-agent: GPTBot
Disallow: /ncepcr/communities/pbrn/
User-agent: ChatGPT-User
Disallow: /ncepcr/communities/pbrn/
User-agent: CCBot
Disallow: /ncepcr/communities/pbrn/
User-agent: anthropic-ai
Disallow: /ncepcr/communities/pbrn/
User-agent: Claude-Web
Disallow: /ncepcr/communities/pbrn/
# Googlebot - Allow all paths
User-agent: Googlebot
Allow: /
Disallow:
# Special use pages
Disallow: /research/findings/ta/technical-assistance-form-thank-you.html
Disallow: /funding/contracts/proposal-instructions.html
# Deprecated pages
Disallow: /sites/default/files/publications/files/organization-chart.pdf
Disallow: /whatsnew.html
# Temporary
Disallow: /news/events/ahrq-research-summit-learning.html
Allow: /professionals/quality-patient-safety/hais/tools/perinatal-care/index.html
Disallow: /professionals/quality-patient-safety/hais/tools/perinatal-care/
Disallow: /nhguide/toolkits/determine-whether-to-treat/antibiotic-tool.html
Disallow: /topics/index-v2-f5L2sheVSpUMT9tL.html
Disallow: /learning-health-systems/
Disallow: /whatsnew.html
Disallow: /health-literacy
Disallow: /rural-post-partum-challenge
Disallow: /questions
Disallow: /challenges
Disallow: /innovations
No sitemap found
Adding a sitemap helps search engines discover your pages.
BTLS Certificate Expiry & Recommendations34 days until leaf cert expires — 3 issues to addressREVIEW
Certificate validity
Recommended actions
- Prefer TLS 1.3 — TLS 1.2 is acceptable but TLS 1.3 removes RSA key exchange and improves latency
- Submit your domain to hstspreload.org to be added to the Chrome preload list
- Enable OCSP stapling on your TLS server to remove a CA roundtrip and protect user privacy
A+DNS Records1 A records, 48 ms lookupPASS
| A | 162.99.46.11 |
| AAAA | — |
| CNAME | — |
| NS | ns4-06.azure-dns.info, ns1-06.azure-dns.com, ns2-06.azure-dns.net, ns3-06.azure-dns.org |
| MX | 10 primary.us.etp.fireeyegov.com 20 alt1.us.etp.fireeyegov.com 30 alt2.us.etp.fireeyegov.com 40 alt3.us.etp.fireeyegov.com |
| TXT | SPF v=spf1 ip4:34.225.84.221 ip4:158.70.152.0/24 ip4:158.72.152.0/24 ip4:158.72.139.... _eqomgmy4ltlt89m2jot0y42ydi6oqko ZOOM_verify_eC889e4NlFpCXbpNJIrowh identrust_validate=1inhnmKQGZ8YyvkkCxXOMhqUdPEPiGje0k1x13LWoZen _jnzp2py7hverf59gcmtt0ik0wo4vg86 google-site-verification=h6coIDB6HuIKJJa_8aCW8F8RDQxE0uqdm3r8aINiyk4 n8mc4y5f068k42xcpxyzcd4nz5whkkkt qcxwgj0l6yrhdy14gtpqp2ncr8qcgqwd MS=ms15674864 PUIKiiNL899E/tXyWrUruOxPD7N3RFhj+cEN9oFyeIU4XkTEdSzPjVjWaFhmPnwc9NSdRFO0zNLG/rSV... lccwl3rcvlrz0dx6mv8r4256r4lmlk85 rbv0pdlgfgcof2bkbda134fj4u |
| 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.
ARedirect Chain1 redirect(s), 438 ms totalPASS
https://ahrq.gov
396 ms · HTTP/1.1
https://www.ahrq.gov/
42 ms · HTTP/1.1 FINAL
| # | URL | Status | Time | Protocol | Server |
|---|---|---|---|---|---|
| 1 | https://ahrq.gov | 302 | 396 ms | HTTP/1.1 | Microsoft-IIS/10.0 |
| 2 | https://www.ahrq.gov/ | 403 | 42 ms | HTTP/1.1 | CloudFront |
See the visual redirect chain in the HTTP Probe tab →
If permanent, use 301 instead.
302 (Found) is for genuinely temporary redirects — if this redirect is permanent, switch to 301 to preserve SEO equity.
Learn more ▾ ▴
Search engines treat 302 as temporary, keeping the original URL indexed and not transferring full link equity to the destination. Use 301 (Moved Permanently) for permanent redirects (HTTP→HTTPS, www-vs-non-www, URL restructures).
Source: Google Search Central
A+URL Variantswww/non-www, trailing slash, HTTP→HTTPSPASS
www / non-www
HTTP → HTTPS
Consistent
A+Domain Intelligenceahrq.gov — via get.gov, 26 years, 10 months old, hosted on HHSNET-NOC-ASN - U.S. Dept. of Health and Human Services, USPASS
26 days
August 12, 2026
34 days
Issued by DigiCert Inc
26 years, 10 months
Registered October 13, 1999
Enabled
Protects against DNS spoofing
HHSNET-NOC-ASN - U.S. Dept. of Health and Human Services, US
ASN AS26810
162.99.46.11
get.gov
Expiry timeline
Recommended actions
- Renew the domain or enable auto-renewal to prevent accidental expiry
- 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