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Infrastructure

· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
83
GRADE
B
FIX
1
REVIEW
4
PASS
4
INFO
0
Probed from Madrid, Spain
301 Moved Permanently
Checks
9
4 PASS 4 REVIEW 1 FIX
D
CDN & Delivery
Action
No CDN detected
FIX
No CDN detected
Warning::
No CDN detected
A CDN can significantly improve load times for users around the world by caching content at edge nodes closer to them.
No CDN detected

Consider using a CDN to improve global delivery speed and reduce origin load.

B
Redirect Chain
1 redirect(s), 1218 ms total
REVIEW
1 redirect(s), 1218 ms total
Info::
Single redirect
Got: https://mdanderson.org → https://www.mdanderson.org/ (301)
Info::
WWW normalization redirect
Warning::
Redirect overhead: 1218 ms total
Got: 1218 ms

https://mdanderson.org

523 ms · HTTP/1.1

301

https://www.mdanderson.org/

695 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://mdanderson.org301523 msHTTP/1.1Apache
2https://www.mdanderson.org/200695 msHTTP/1.1Apache

See the visual redirect chain in the HTTP Probe tab →

C
IPv6 Readiness
Action
No IPv6 support
REVIEW
No IPv6 support
Info::
No IPv6 (AAAA) records found
IPv6 support is increasingly important for global accessibility. About 40% of internet users have IPv6 connectivity.
No IPv6 Support
About 40% of internet users have IPv6. Consider adding AAAA records.

IPv6 support is increasingly important for global accessibility. About 40% of internet users have IPv6 connectivity.

Why this matters

No AAAA records — same impact as 'no IPv6 (AAAA) records'; IPv6-preferring clients pay extra latency falling back to IPv4.

Source: Google IPv6 stats

B
URL Variants
www/non-www, trailing slash, HTTP→HTTPS
REVIEW
www/non-www, trailing slash, HTTP→HTTPS
Critical::
Both www and non-www versions serve content
Got: Both variants return 200 Expected: One variant 301-redirects to the other
Info::
HTTP correctly 301-redirects to HTTPS

www / non-www

200https://www.mdanderson.org/
200https://mdanderson.org/

Inconsistent — duplicate content risk

HTTP → HTTPS

301http://mdanderson.org/ → https://www.mdanderson.org/

Consistent

B
TLS Certificate Expiry & Recommendations
223 days until leaf cert expires — 5 issues to address
REVIEW

Certificate validity

223
days left
0d 30d 60d 90d+

Recommended actions

  • Prefer TLS 1.3 — TLS 1.2 is acceptable but TLS 1.3 removes RSA key exchange and improves latency
  • Add includeSubDomains to the HSTS directive
  • 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
A+
DNS Records
1 A records, 155 ms lookup
PASS
1 A records, 155 ms lookup
Info::
Resolves to 1 IPv4 address(es)
Got: 143.111.1.53
Info::
Single A record — no DNS redundancy
Multiple A records provide failover if one server goes down.
Info::
No IPv6 (AAAA) records
Info::
5 nameserver(s) configured
Got: napapbcdns4.mdanderson.org, ns2.mdanderson.org, ns3.mdanderson.org, ncpapbcdns3.mdanderson.org, ns1.mdanderson.org
Info::
2 mail exchanger(s) configured
Info::
CAA records not checked
CAA record lookup requires a specialized DNS resolver. This check will be available in a future update.
Info::
SPF record present in TXT
Info::
DNS resolution time: 155 ms
Got: 155 ms
A143.111.1.53
AAAA—
CNAME—
NSnapapbcdns4.mdanderson.org, ns2.mdanderson.org, ns3.mdanderson.org, ncpapbcdns3.mdanderson.org, ns1.mdanderson.org
MX
10 mxa-003a8801.gslb.pphosted.com
10 mxb-003a8801.gslb.pphosted.com
TXT
google-gws-recovery-domain-verification=59377799
webexdomainverification.GNHL=5ffb3bf9-5860-4181-91c1-69a0992b1565
apple-domain-verification=JYqSh6Spvq4n5RiI
google-site-verification=2As2uapTKewZ8LEeqxP47HqlHutVDjQaf01UrENwBwc
MS=CC8770E66460B41545CB61E4086B9FBD78E2AEF2
google-site-verification=aCAparCBsVS3VnoTNY59rOcIgLqgVUymB7LD_2KYE_I
docusign=7dea166d-c2cc-4846-b6ed-954bffb82267
+VgTRZVcxvoWZ3IsZKjnsmHmjC5IQ/CDVf/qqvr4isici6wBWdNsjaQ1vkJr8f8/jQMUVtjGJSQOw4Kh...
jamf-site-verification=XPKgTuZm2Q8G6WXusGyllg
google-site-verification=szUP0CKLxWL-VvSjKk8DDvsnfYbHzwskOPgzoU-QeTI
SPF v=spf1 include:%{ir}.%{v}.%{d}.spf.has.pphosted.com ~all
adobe-idp-site-verification=9f5611bf987ce329765ecc51f24a8d600d8a705e90ed63e40d13...
facebook-domain-verification=adwtjkstd18vkla8jlnfp01uoxze2s
docusign=d09e7631-f2b2-4c08-b489-93e3da1bc525
CAALookup not available with standard resolver
Resolved in 155 ms

Multiple A records provide failover if one server goes down.

Why this matters

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.

Why this matters

Informational: CAA (Certification Authority Authorization) records weren't checked in this scan.

A+
Crawlability
robots.txt present, sitemap with 4124 URLs
PASS
robots.txt present, sitemap with 4124 URLs
Info::
robots.txt is present
Got: 3587 bytes
Info::
sitemap.xml is present
Info::
sitemap.xml is valid XML
Info::
sitemap.xml contains 4124 entries
Info::
robots.txt references sitemap
robots.txt 200 OK
Size 3587 B Sitemaps referenced 5 User-agents heritrix, *, Googlebot-News Blocking No — crawling allowed
User-Agent: heritrix

Disallow: /patient-and-cancer-information/care-centers-and-clinics/care-centers/breast/multi-team.html

Disallow: /gifts/

Disallow: /publications/AdvanceTeam/

Disallow: /publications/bov/

Disallow: /lookups/

Disallow: /content/mda/lookups/

Disallow: /content/mda/en/lookups/

Disallow: /about-md-anderson/business-legal/doing-business/vendors-and-suppliers/owners-design-guidelines/supplemental-resources*

Disallow: /about-md-anderson/business-legal/doing-business/vendors-and-suppliers/owners-design-guidelines/design-guideline-elements*

Disallow: /about-md-anderson/business-legal/doing-business/vendors-and-suppliers/owners-design-guidelines/master-construction-specifications*

Disallow: /*.dwg

Disallow: /content/dam/mdanderson/documents/about-md-anderson/about-us/doing-business/owners-design-guidelines/*

Disallow: /documents/about-md-anderson/about-us/doing-business/owners-design-guidelines/*
Disallow: /content/dam/mdanderson/documents/uploads
Disallow: /documents/uploads

Disallow: /transcripts/cancer-newsline/2014/immunotherapy---unleashing-immune-system-to-attack-cancer-7-14-14.htm

Disallow: /transcripts/smokers-with-hiv-aids-find-quitting-easier.htm

Disallow: /transcripts/transcript---central-nervous-system-tumors-symptoms-and-treatment.htm

Disallow: /transcripts/cancer-newsline/2014/immunotherapy---unleashing-immune-system-to-attack-cancer-7-14-14.htm

Disallow: /transcripts/smokers-with-hiv-aids-find-quitting-easier.htm

Disallow: /transcripts/transcript---central-nervous-system-tumors-symptoms-and-treatment.htm


User-agent: *

Disallow: /patient-and-cancer-information/care-centers-and-clinics/care-centers/breast/multi-team.html

Disallow: /gifts/

Disallow: /publications/AdvanceTeam/

Disallow: /publications/bov/

Disallow: /patient-education/

Disallow: /patients-family/search-results.html?searchType=patient-education

Disallow: /lookups/

Disallow: /content/mda/lookups/

Disallow: /content/mda/en/lookups/

Disallow: /about-md-anderson/business-legal/doing-business/vendors-and-suppliers/owners-design-guidelines/supplemental-resources*

Disallow: /about-md-anderson/business-legal/doing-business/vendors-and-suppliers/owners-design-guidelines/design-guideline-elements*

Disallow: /about-md-anderson/business-legal/doing-business/vendors-and-suppliers/owners-design-guidelines/master-construction-specifications*

Disallow: /*.dwg

Disallow: /content/dam/mdanderson/documents/about-md-anderson/about-us/doing-business/owners-design-guidelines/*

Disallow: /documents/about-md-anderson/about-us/doing-business/owners-design-guidelines/*

Disallow: /content/dam/mdanderson/documents/uploads
Disallow: /documents/uploads

Disallow: /transcripts/cancer-newsline/2014/immunotherapy---unleashing-immune-system-to-attack-cancer-7-14-14.htm

Disallow: /transcripts/smokers-with-hiv-aids-find-quitting-easier.htm

Disallow: /transcripts/transcript---central-nervous-system-tumors-symptoms-and-treatment.htm

Disallow: /transcripts/cancer-newsline/2014/immunotherapy---unleashing-immune-system-to-attack-cancer-7-14-14.htm

Disallow: /transcripts/smokers-with-hiv-aids-find-quitting-easier.htm

Disallow: /transcripts/transcript---central-nervous-system-tumors-symptoms-and-treatment.htm


User-agent: Googlebot-News

Disallow: 


Sitemap: https://www.mdanderson.org/sitemap.xml
Sitemap: https://www.mdanderson.org/newsroom-sitemap.xml
Sitemap: https://www.mdanderson.org/cancerwise-sitemap.xml
Sitemap: https://www.mdanderson.org/cancer-types-sitemap.xml
Sitemap: https://www.mdanderson.org/treatmentoptions-sitemap.xml
sitemap.xml 200 OK
Type URL Set URLs 4124 entries Valid XML Yes
Sample URLs:
A+
Domain Intelligence
mdanderson.org — via Network Solutions, LLC, 29 years, 4 months old, hosted on UTMDACC - The University Of Texas M.D. Anderson Cancer Center, US
PASS
mdanderson.org — via Network Solutions, LLC, 29 years, 4 months old, hosted on UTMDACC - The University Of Texas M.D. Anderson Cancer Center, US
Info::
Domain registered until May 7, 2034 (8 years, 1 months remaining)
Info::
DNSSEC is not enabled
DNSSEC protects against DNS spoofing attacks. While not required, enabling DNSSEC adds an additional layer of security. Contact your DNS provider to enable it.
Info::
Registrar: Network Solutions, LLC
Warning::
Registrar lock is NOT enabled
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.
Info::
Hosting: UTMDACC - The University Of Texas M.D. Anderson Cancer Center, US
Got: AS11773
Domain expiry

2884 days

May 7, 2034

SSL certificate

223 days

Issued by Internet2

Domain age

29 years, 4 months

Registered May 6, 1997

DNSSEC

Not enabled

Protects against DNS spoofing

Hosting

UTMDACC - The University Of Texas M.D. Anderson Cancer Center, US

ASN AS11773

143.111.1.53

Registrar

Network Solutions, LLC

Unlocked 5 NS records
Expiry timeline
Today
+1 year
Domain expiry SSL expiry Danger zone (≤30 days)
Recommended actions
  • Enable DNSSEC to protect visitors from DNS spoofing
  • Enable registrar lock (clientTransferProhibited) to block unauthorized domain transfers
Registrar Network Solutions, LLC
Created May 6, 1997 (29 years, 4 months ago)
Expires May 7, 2034 (8 years, 1 months)
Last Updated May 14, 2024
Name Servers ns3.mdanderson.org, ncpapbcdns3.mdanderson.org, napapbcdns4.mdanderson.org, ns1.mdanderson.org, ns2.mdanderson.org
DNSSEC Not enabled
Hosting
IP Address 143.111.1.53
ASN AS11773 (UTMDACC - The University Of Texas M.D. Anderson Cancer Center, US)
Provider UTMDACC - The University Of Texas M.D. Anderson Cancer Center, US
Data source: rdap (0.5s)

DNSSEC protects against DNS spoofing attacks. While not required, enabling DNSSEC adds an additional layer of security. Contact your DNS provider to enable it.

Why this matters

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.

Why this matters

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

A
HTTP Probe Timing
Total 672 ms — DNS, TCP, TLS, TTFB, content transfer breakdown
PASS
DNS Lookup DNS Lookup — time to resolve the domain name to an IP address.
149 ms
TCP Connect TCP Connect — time to establish a TCP connection to the server.
130 ms
TLS Handshake TLS Handshake — time to complete the HTTPS encryption handshake.
262 ms
Time to First Byte Time to First Byte — how long the server takes to respond with the first byte of data.
672 ms
Total Time Total request time from DNS lookup through full response.
672 ms

Connection waterfall

DNS Lookup 149 ms TCP Connect 130 ms TLS Handshake 262 ms Server Processing 132 ms Content Transfer 0 ms
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.

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