Skip to content
https://arizona.edu

Infrastructure

· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
92
GRADE
A
FIX
1
REVIEW
1
PASS
7
INFO
0
Probed from Madrid, Spain
301 Moved Permanently
Checks
9
7 PASS 1 REVIEW 1 FIX
D
TLS Certificate Expiry & Recommendations
Action
12 days until leaf cert expires — 6 issues to address
FIX

Certificate validity

12
days left
0d 30d 60d 90d+
Renew urgently — under 14 days remaining

Recommended actions

  • Renew certificate — 12 days remaining
  • Prefer TLS 1.3 — TLS 1.2 is acceptable but TLS 1.3 removes RSA key exchange and improves latency
  • Extend HSTS max-age to at least 31536000 (1 year) to meet the preload list criteria
  • 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
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.arizona.edu/
200https://arizona.edu/

Inconsistent — duplicate content risk

HTTP → HTTPS

301http://arizona.edu/ → https://arizona.edu/

Consistent

A
DNS Records
4 A records, 906 ms lookup
PASS
4 A records, 906 ms lookup
Info::
Resolves to 4 IPv4 address(es)
Got: 151.101.66.133, 151.101.194.133, 151.101.2.133, 151.101.130.133
Info::
Has 4 IPv6 (AAAA) record(s)
Got: 2a04:4e42:600::645, 2a04:4e42::645, 2a04:4e42:400::645, 2a04:4e42:200::645
Info::
4 nameserver(s) configured
Got: ns2.arizona.edu, ns1.arizona.edu, ns3.arizona.edu, ns4.arizona.edu
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
Warning::
DNS resolution is slow (906 ms)
Slow DNS adds latency to every page load. Consider a faster DNS provider.
Got: 906 ms
A151.101.66.133, 151.101.194.133, 151.101.2.133, 151.101.130.133
AAAA2a04:4e42:600::645, 2a04:4e42::645, 2a04:4e42:400::645, 2a04:4e42:200::645
CNAME—
NSns2.arizona.edu, ns1.arizona.edu, ns3.arizona.edu, ns4.arizona.edu
MX
10 usb-smtp-inbound-1.mimecast.com
10 usb-smtp-inbound-2.mimecast.com
TXT
klaviyo-site-verification=UrxG2U
_globalsign-domain-verification=izgsITLkfZm2smYqyfQfHKavyInHOYe9MitDNa7RQU
google-site-verification=3_W-LsyREcc6TUUJFFwVIsUBXWTqMdd5vVKcsbWqP3c
e2ma-verification=8zg
atlassian-domain-verification=ES94l3GmUvDBsp50UTUBNhg3ajIoCIdqIidNQblv3vvBUBaDCi...
MS=ms40012895
airtable-verification=781917ba2011d4705c9f3e37380688eb
d365mktkey=Nohfyx5FLmdmtCQXEexHH1OiSSqRT7j0hqJyKTFUpGMx
jamf-site-verification=6A6Ip32Wh4v4uZIdWCLC2g
adobe-idp-site-verification=e27c4eece2e5df59eaee045adaef012decbb2439bc6a0722f0f1...
MS=5C6674694CD6FA2EDE161F6871107FB9C432B99C
atlassian-sending-domain-verification=70870acb-3638-4afe-a11c-7430e8f24003
d365mktkey=mAW34Y9KNCu5tYAErP2Li1Gs2J2sNxlvXgULSgurxtwx
apple-domain-verification=jmQe832xe1XXKYcO
google-site-verification=USB08R_Co0Rc7KU12xyGt8zHvYJqLlEZaii-4-i0Vj8
sophos-domain-verification=87e4643d004eab966e575a370952f3a5b797d4062be121059e2c9...
pardot586353=9ea2484b018904a444376f3cee23019027055b5c718f0ef366ed081a7ddb581c
TnepNYdP462BgcnI
UA Campus Network 198.60.152.0/24
google-site-verification=35N1tSLMW9z2uwk1-8lJqfTCuXYuUrGFpfF8GE3-Yy4
mandrill_verify.fFJYWwkPVM_JtMfsga7E7w
autodesk-domain-verification=K8cdX6TSE-D46DS7CUpG
99b13054f116de43917dd122e7df4c7c3961811034fa4fd39d
klaviyo-site-verification=WND2kS
sophos-domain-verification=2586001100bd8c8b6cafff14012013a6fd3c5ede4a4c00883e64f...
brevo-code:99f7dc28b8f143fe55a3b7640ef52f99
google-site-verification=J9li8jBvtpY9ekc2FR5a6m7Mq5m0avK_iP6fWROCi5g
e2ma-verification=87zbb
sophos-domain-verification=44e0f41621d87f620ec796c9f2152cd1674045f5242f3e6189d1f...
airtable-verification=8bf69d1cc604393877a4a3774b4ace32
brevo-code:59b3a18744d24f960bd78166f34f87c5
SPF v=spf1 redirect=7hkvzptr._spf._d.mim.ec
sophos-domain-verification=932f3cb9400b3f037acba22717426a999d4aa2f524138065efb2e...
cisco-ci-domain-verification=4979fa9a4f35fa838213e5584a42d03bc9b7471de8aecb8e5c3...
CAALookup not available with standard resolver
Resolved in 906 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.

Slow DNS adds latency to every page load. Consider a faster DNS provider.

Why this matters

DNS resolution is slow — anycast DNS providers (Cloudflare, Route 53) typically resolve <50ms globally.

Source: DNS performance benchmarks

A
Redirect Chain
1 redirect(s), 178 ms total
PASS
1 redirect(s), 178 ms total
Info::
Single redirect
Got: https://arizona.edu → https://www.arizona.edu/ (301)
Info::
WWW normalization redirect

https://arizona.edu

4 ms · HTTP/1.1

301

https://www.arizona.edu/

173 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://arizona.edu3014 msHTTP/1.1Varnish
2https://www.arizona.edu/200173 msHTTP/1.1nginx

See the visual redirect chain in the HTTP Probe tab →

A+
IPv6 Readiness
IPv6 reachable (0 ms)
PASS
IPv6 reachable (0 ms)
Info::
IPv6 is configured and reachable at 2a04:4e42:600::645, 2a04:4e42::645, 2a04:4e42:400::645, 2a04:4e42:200::645
Got: 0 ms connect
IPv6 Ready
AAAA Records 2a04:4e42:600::645, 2a04:4e42::645, 2a04:4e42:400::645, 2a04:4e42:200::645 Connection Reachable (0 ms)
A+
Crawlability
robots.txt present, sitemap with 407 URLs
PASS
robots.txt present, sitemap with 407 URLs
Info::
robots.txt is present
Got: 2112 bytes
Info::
sitemap.xml is present
Info::
sitemap.xml is valid XML
Info::
sitemap.xml contains 407 entries
Info::
robots.txt references sitemap
robots.txt 200 OK
Size 2112 B Sitemaps referenced 2 User-agents * Blocking No — crawling allowed
#
# 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: *
# 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.md
Disallow: /composer/Metapackage/README.txt
Disallow: /composer/Plugin/ProjectMessage/README.md
Disallow: /composer/Plugin/Scaffold/README.md
Disallow: /composer/Plugin/VendorHardening/README.txt
Disallow: /composer/Template/README.txt
Disallow: /modules/README.txt
Disallow: /sites/README.txt
Disallow: /themes/README.txt
# 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
Disallow: /media/oembed
Disallow: /*/media/oembed
# 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
Disallow: /index.php/media/oembed
Disallow: /index.php/*/media/oembed

Sitemap: https://www.arizona.edu/sitemap.xml
Sitemap: https://www.arizona.edu/admissions/sitemap-pages.xml
sitemap.xml 200 OK
Type URL Set URLs 407 entries Valid XML Yes
Sample URLs:
A+
Domain Intelligence
arizona.edu — 40 years, 9 months old
PASS
arizona.edu — 40 years, 9 months old
Info::
Domain registered until Jul 31, 2027 (1 years, 3 months remaining)
Domain expiry

381 days

July 31, 2027

SSL certificate

12 days

Issued by Certainly

Domain age

40 years, 9 months

Registered January 23, 1986

DNSSEC

Status unknown

Protects against DNS spoofing

Hosting

Unknown

2a04:4e42:400::645

Registrar

Registrar unknown

Lock status unknown 4 NS records
Expiry timeline
Today
+1 year
Domain expiry SSL expiry Danger zone (≤30 days)
Recommended actions
  • Renew the TLS certificate or verify auto-renewal is working
Registrar
Created January 23, 1986 (40 years, 9 months ago)
Expires July 31, 2027 (1 years, 3 months)
Last Updated July 1, 2025
Name Servers ns4.arizona.edu, ns3.arizona.edu, ns1.arizona.edu, ns2.arizona.edu
Registrant University of Arizona
Hosting
IP Address 2a04:4e42:400::645
Data source: whois (0.8s)
A+
HTTP Probe Timing
Total 168 ms — DNS, TCP, TLS, TTFB, content transfer breakdown
PASS
DNS Lookup DNS Lookup — time to resolve the domain name to an IP address.
163 ms
TCP Connect TCP Connect — time to establish a TCP connection to the server.
0 ms
TLS Handshake TLS Handshake — time to complete the HTTPS encryption handshake.
4 ms
Time to First Byte Time to First Byte — how long the server takes to respond with the first byte of data.
168 ms
Total Time Total request time from DNS lookup through full response.
168 ms

Connection waterfall

DNS Lookup 163 ms TCP Connect 0 ms TLS Handshake 4 ms Server Processing 1 ms Content Transfer 0 ms
A+
CDN & Delivery
Fastly (HIT)
PASS
Fastly (HIT)
Info::
Site is served via Fastly CDN
Got: x-served-by: cache-toj-leto2350075-TOJ
Info::
CDN cache status: HIT
CDN Detected: Fastly
Provider Fastly Cache Status HIT Evidence x-served-by: cache-toj-leto2350075-TOJ
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.

Send Feedback