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Infrastructure

· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
87
GRADE
B
FIX
1
REVIEW
3
PASS
5
INFO
0
Probed from Sao Paulo, Brazil
301 Moved Permanently
Checks
9
5 PASS 3 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.

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.stjude.org/
200https://stjude.org/

Inconsistent — duplicate content risk

HTTP → HTTPS

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

Consistent

B
TLS Certificate Expiry & Recommendations
159 days until leaf cert expires — 3 issues to address
REVIEW

Certificate validity

159
days left
0d 30d 60d 90d+

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 Records
5 A records, 12 ms lookup
PASS
5 A records, 12 ms lookup
Info::
Resolves to 5 IPv4 address(es)
Got: 67.91.97.105, 68.208.80.132, 216.250.140.65, 66.162.22.231, 174.46.34.65
Info::
No IPv6 (AAAA) records
Info::
8 nameserver(s) configured
Got: ns12.stjude.org, a2-66.akam.net, a5-67.akam.net, a16-64.akam.net, a11-67.akam.net, a18-65.akam.net, ns11.stjude.org, a1-72.akam.net
Info::
1 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: 12 ms
Got: 12 ms
A67.91.97.105, 68.208.80.132, 216.250.140.65, 66.162.22.231, 174.46.34.65
AAAA—
CNAME—
NSns12.stjude.org, a2-66.akam.net, a5-67.akam.net, a16-64.akam.net, a11-67.akam.net, a18-65.akam.net, ns11.stjude.org, a1-72.akam.net
MX
10 stjude-org.mail.protection.outlook.com
TXT
BPN/7fHl9qbGZsAcyzKraeNBXsAhjIV4LIDc9yhnrWgWZPpDgplUjiEl6fzf2H77ccd8vFem+GqdY8v1...
I5wx7qB0XmSTRTudCJrzRbVrFGWR8VIefDR5OSO6dFgjRymy5GSnfjSxTRPwbu7M+ON8Z/spn2kB3zUR...
adobe-idp-site-verification=8343786d9e2b41d2ceebdc7e040cf3dc9992c45d51e104da7c4f...
adobe-idp-site-verification=e5ec79da87bc0caf1ecaa617715c91cd14ceb0354149885afb7f...
adobe-sign-verification=bbdee42168d35ea7f1901d02115e12d
anthropic-domain-verification-g9ye2m=xmijOrENR8hx1Q2naGz2gNp3u
apple-domain-verification=jyezS6X4FjFnaiKv
apple-domain-verification=pYTOpOP2FrOaLDmSxbMEirEEoi9jqW8dfkUuAQT3R60
atlassian-domain-verification=vVBloW8FcVI+BuwwkFAB+W3a585RXniaMXGpBpOWUAEolD1blv...
box-domain-verification=d0035a3ce36601a7f82b269001335ab949b6f723c80144eacdb2a242...
cisco-ci-domain-verification=670fb89d0aa0825e9247b394aafcf037a15959204d78295eb6b...
cursor-domain-verification-8tdvmn=F2akRUXnyTHzzpj3zQb0AriIM
docusign=26b06233-729d-4cf5-b5f3-4afb50d092be
facebook-domain-verification=p0ybhphcts6nkvkd3j32ya0gaqtcbt
google-site-verification=1ay_iZkvioPcxnljyTeZ7XVdykTB3ZsMSf5xjMwnpHU
hpe-greenlake-domain-verification=4c4c52536467394664645052764b446933512d59527274...
jamf-site-verification=gd3lGDG-Y565WsbBVO29bA
linkedin-site-verification=8b1dd41a-0899-45b0-9522-fad0ac98eb07
ms-domain-verification=9a238f59-380c-439e-a4e8-d2df9ab6410e
netdata-verification=3761f927-2463-47b5-8770-625ee0efc1b1
openai-domain-verification=dv-fgYezEenJ86BKEKzjVopGKP3
smartsheet-site-validation=FNkM-ZbVkKve63vnFg1lmyG2RcXonZeG
smartsheet-site-validation=joYIfQIr4YMCc0TWq1nb4YK5mVhMj6G5
smartsheet-site-validation=rtWv711ruiEHy1tG2HTvB8Fk1g42Bqhi
teamviewer-sso-verification=520017692d554fccbe5bbbb49305367f
twilio-domain-verification=dc29f7746ca479699712a2053d0be789
SPF v=spf1 include:spf1.stjude.org include:spf2.stjude.org include:spf.protection.ou...
vmware-cloud-verification-00265bd9-a5ba-4290-b19b-62ea74f2d48a
CAALookup not available with standard resolver
Resolved in 12 ms

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
Redirect Chain
1 redirect(s), 989 ms total
PASS
1 redirect(s), 989 ms total
Info::
Single redirect
Got: https://stjude.org → https://www.stjude.org/ (301)
Info::
WWW normalization redirect
Info::
Redirect overhead: 989 ms total
Got: 989 ms

https://stjude.org

433 ms · HTTP/1.1

301

https://www.stjude.org/

556 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://stjude.org301433 msHTTP/1.1Apache/2.4.37 (Red Hat Enterprise Linux) OpenSSL/1.1.1k Communique/4.3.5
2https://www.stjude.org/200556 msHTTP/1.1Apache/2.4.37 (Red Hat Enterprise Linux) OpenSSL/1.1.1k Communique/4.3.5

See the visual redirect chain in the HTTP Probe tab →

A+
Crawlability
robots.txt present, sitemap with 7466 URLs
PASS
robots.txt present, sitemap with 7466 URLs
Info::
robots.txt is present
Got: 1365 bytes
Info::
sitemap.xml is present
Info::
sitemap.xml is valid XML
Info::
sitemap.xml contains 7466 entries
Info::
robots.txt references sitemap
robots.txt 200 OK
Size 1365 B Sitemaps referenced 11 User-agents * Blocking No — crawling allowed
Sitemap: https://www.stjude.org/sitemap.xml

Sitemap: https://www.stjude.org/image-sitemap.xml

Sitemap: https://www.stjude.org/video-sitemap.xml

Sitemap: https://www.stjude.org/es/sitemap.xml

Sitemap: https://www.stjude.org/es/image-sitemap.xml

Sitemap: https://www.stjude.org/es/video-sitemap.xml

Sitemap: https://www.stjude.org/education-training/st-jude-graduate-school-of-biomedical-sciences/sitemap1.xml

Sitemap: https://www.stjude.org/research/sitemap1.xml

Sitemap: https://www.stjude.org/care-treatment/sitemap1.xml

Sitemap: https://www.stjude.org/people/sitemap1.xml

Sitemap: https://www.stjude.org/es/care-treatment/sitemap1.xml


User-agent: *

Disallow: */search

Disallow: */search-results.html

Disallow: */error/

Disallow: */content-library/

Disallow: */bin/

Disallow: /services/

Disallow: */stjude/forms/common/email_to_friend/

Disallow: */stjude/v/index.jsp

Disallow: */content-library/forms/

Disallow: */content/reference/

Disallow: */SJFile/

Disallow: */content/dam/sites/dreamhome/

Disallow: */no-index/*

Disallow: */content/data/products/

Disallow: */content/data/lists/

Disallow: */content/blueprints/

Disallow: */content/sites/www/es_LA/home/content-library/forms/

Disallow: */patient-experience
Disallow: */content/dam/en_US/shared/www/about-st-jude/vendor-info/

Disallow: */promotion.html

Disallow: */promotion/*
sitemap.xml 200 OK
Type URL Set URLs 7466 entries Valid XML Yes
Sample URLs:
A+
Domain Intelligence
stjude.org — via CSC Corporate Domains, Inc., 37 years, 7 months old, hosted on ASN-FLEXENTIAL - Flexential Colorado Corp., US
PASS
stjude.org — via CSC Corporate Domains, Inc., 37 years, 7 months old, hosted on ASN-FLEXENTIAL - Flexential Colorado Corp., US
Info::
Domain registered until Mar 30, 2027 (11 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: CSC Corporate Domains, Inc.
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: ASN-FLEXENTIAL - Flexential Colorado Corp., US
Got: AS13649
Domain expiry

287 days

March 30, 2027

SSL certificate

159 days

Issued by DigiCert Inc

Domain age

37 years, 7 months

Registered March 29, 1989

DNSSEC

Not enabled

Protects against DNS spoofing

Hosting

ASN-FLEXENTIAL - Flexential Colorado Corp., US

ASN AS13649

216.250.140.65

Registrar

CSC Corporate Domains, Inc.

Unlocked 8 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 CSC Corporate Domains, Inc.
Created March 29, 1989 (37 years, 7 months ago)
Expires March 30, 2027 (11 months)
Last Updated March 31, 2026
Name Servers a11-67.akam.net, a16-64.akam.net, a18-65.akam.net, a2-66.akam.net, a5-67.akam.net, a1-72.akam.net, ns11.stjude.org, ns12.stjude.org
DNSSEC Not enabled
Hosting
IP Address 216.250.140.65
ASN AS13649 (ASN-FLEXENTIAL - Flexential Colorado Corp., US)
Provider ASN-FLEXENTIAL - Flexential Colorado Corp., 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 428 ms — DNS, TCP, TLS, TTFB, content transfer breakdown
PASS
DNS Lookup DNS Lookup — time to resolve the domain name to an IP address.
5 ms
TCP Connect TCP Connect — time to establish a TCP connection to the server.
140 ms
TLS Handshake TLS Handshake — time to complete the HTTPS encryption handshake.
143 ms
Time to First Byte Time to First Byte — how long the server takes to respond with the first byte of data.
428 ms
Total Time Total request time from DNS lookup through full response.
428 ms

Connection waterfall

DNS Lookup 5 ms TCP Connect 140 ms TLS Handshake 143 ms Server Processing 140 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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