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https://asu.edu

Infrastructure

· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
86
GRADE
B
FIX
0
REVIEW
4
PASS
5
INFO
0
Probed from Madrid, Spain
301 Moved Permanently
Checks
9
5 PASS 4 REVIEW
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.asu.edu/
200https://asu.edu/

Inconsistent — duplicate content risk

HTTP → HTTPS

301http://asu.edu/ → https://www.asu.edu/

Consistent

B
TLS Certificate Expiry & Recommendations
73 days until leaf cert expires — 4 issues to address
REVIEW

Certificate validity

73
days left
0d 30d 60d 90d+

Recommended actions

  • 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
B
CDN & Delivery
Cloudflare
REVIEW
Cloudflare
Info::
Site is served via Cloudflare CDN (edge: CDG)
Got: cf-ray: 9efec0c4fcc7d5cd-CDG
CDN Detected: Cloudflare
Provider Cloudflare Evidence cf-ray: 9efec0c4fcc7d5cd-CDG
A+
DNS Records
2 A records, 62 ms lookup
PASS
2 A records, 62 ms lookup
Info::
Resolves to 2 IPv4 address(es)
Got: 104.16.68.56, 104.16.67.56
Info::
No IPv6 (AAAA) records
Info::
6 nameserver(s) configured
Got: a10-64.akam.net, a7-64.akam.net, a11-65.akam.net, a1-63.akam.net, a22-66.akam.net, a4-67.akam.net
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: 62 ms
Got: 62 ms
A104.16.68.56, 104.16.67.56
AAAA—
CNAME—
NSa10-64.akam.net, a7-64.akam.net, a11-65.akam.net, a1-63.akam.net, a22-66.akam.net, a4-67.akam.net
MX
5 mxa.global.inbound.cf-emailsecurity.net
5 mxb.global.inbound.cf-emailsecurity.net
TXT
wpe-verification=nextlab
pardot383922=4638751f98dcb08c10fa002c130b8e46d3f8285fc31a4f0169c0e7a7e3e8b593
openai-domain-verification=dv-FAAFwDiMDijg9DDBVOF3zAMd
k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCgkFVNYdscx46LS5X52ct1zwrG08pVlqk...
google-site-verification=bxMIOAXhL404ItIUgl5NLAd_eJm2S5z1hDI2zwAI4vc
HK34FCVSJLHH5H3HDJWD0A05WEPN1O4GQFVUA3QXE
d365mktkey=fsvfevzTqILwT9ZIlPRr2qeMrMA3JJyKEeTtXzTD1Dcx
d365mktkey=lihrZARsIqwOgO8Zt9g3R54AwNeNEWx8xFziFLdlhmkx
google-site-verification=s4Iz8t6_QTkgDdCThhhICa_1ODr85kdANLl_xLkN_oQ
duo_sso_verification=4nKFG1dB05y6UMiesSJAQ2kD5APPjiWvD7DJWfVIAtdoryjYgoMhJtIE8af...
atlassian-sending-domain-verification=13219860-b050-44ed-b6eb-2bd41bfe8282
google-site-verification=BB6GIQnmaILcHSscvQg_fCqj3vdZIlXI5kuy7HpHAPE
d6nblso5hd3ib6u3t2oi8i4edj
wOetlBoozqj8nufjetLt
05siafX4XN93lXTazkmm+/nchrjGPNflg4J688yhKBGNQWzioSa12vgVUiXIV2gDRSVoTrrHTQzqaKnn...
figma-domain-verification=3611d283e1d3a3c59ba1e11e68fdd5fc5a0c620e76d029b8dada6d...
SPF v=spf1 +include:spf.asu.edu include:spf2.asu.edu include:lsoft.com include:_spf....
docusign=00fa7419-118b-42e4-8f9a-772210724092
adobe-idp-site-verification=2a514dab-0c7a-4136-8f5a-a65f408ff19a
workplace-domain-verification=f928ec66-bf3e-46f1-bb17-26eb319c6106
autodesk-domain-verification=eLWeTzRN2wfsHYkyV1fc
wrike-verification=NTc4OTk2NTowZGYwMDU4YTZlMzA2YjY3MmI3ZjVmM2JlM2RjZTU0MjBmODg2N...
asv=924f601cfa6e06ba2e5cca5bf19765a9
facebook-domain-verification=7ukd9ed4wluat1nvp61tse4d9ku40v
MS=ms13229418
google-site-verification=Awf2Ji_nANWhRPDqc598iYColhM35SoKxzgFk34YoCw
wrike-verification=MjE5OTgzNDoxM2RmNDNhNjIyMjYzYTQyMTgwZDM2NDM1ZjZhZTZkNDkxNmIyY...
google-site-verification=sJfpYmf1p0DlSkm01E-cScK7qSbAjtRMHn9vXNfXDAE
apple-domain-verification=ILngEHOprJqMtfC8
airtable-verification=2477b14b6e797c72eecf473623353562
d365mktkey=RxVCFj53JfxSTw3cxh6aEju6DXcyANtKjQZYdQ7YZtgx
ibmid:503c2074-8e5d-43fc-b749-79c9be10e30d
d365mktkey=mXOoF8FVAANFXyvNwTMXy06JMwBDQFkXwDs4wHEAUOcx
kstu2tf14bkjsncenpoufl1jcv
google-site-verification=ZDErSll02c4EoW6W483dq3nvWD7roFI5akkhby9sFrw
google-site-verification=2PEcMgfZ2h9BwNds2GtqnQ-VyaOoucNZ-hAMJ5InLG4
x5LbKUr0ymX7t9gaisbEtZQQ7SAZjFaOLHxsWzOx9VnwBZvGZxz2uH9dXXBFzVCyBE+v0BE/Jv4zHLoP...
mailerlite-domain-verification=6a960a12552098eddac8f8c32077a0707060ed07
CAALookup not available with standard resolver
Resolved in 62 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), 192 ms total
PASS
1 redirect(s), 192 ms total
Info::
Single redirect
Got: https://asu.edu → https://www.asu.edu/ (301)
Info::
WWW normalization redirect

https://asu.edu

61 ms · HTTP/1.1

301

https://www.asu.edu/

131 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://asu.edu30161 msHTTP/1.1cloudflare
2https://www.asu.edu/200131 msHTTP/1.1cloudflare

See the visual redirect chain in the HTTP Probe tab →

A+
Crawlability
robots.txt present, sitemap with 53 URLs
PASS
robots.txt present, sitemap with 53 URLs
Info::
robots.txt is present
Got: 1552 bytes
Info::
sitemap.xml is present
Info::
sitemap.xml is valid XML
Info::
sitemap.xml contains 53 entries
Info::
robots.txt does not reference a sitemap
Add a 'Sitemap:' directive to robots.txt so search engines can discover your sitemap.

Add a 'Sitemap:' directive to robots.txt so search engines can discover your sitemap.

Why this matters

robots.txt omits Sitemap: directive — crawlers must fetch /sitemap.xml by convention; reliable but missing the explicit hint.

Source: sitemaps.org

robots.txt 200 OK
Size 1552 B Sitemaps referenced 0 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.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
sitemap.xml 200 OK
Type URL Set URLs 53 entries Valid XML Yes
Sample URLs:
A+
Domain Intelligence
asu.edu — 39 years, 3 months old, hosted on Cloudflare
PASS
asu.edu — 39 years, 3 months old, hosted on Cloudflare
Info::
Domain registered until Jul 31, 2026 (3 months remaining)
Info::
Hosting: Cloudflare
Got: AS13335
Domain expiry

16 days

July 31, 2026

SSL certificate

73 days

Issued by Let's Encrypt

Domain age

39 years, 3 months

Registered July 27, 1987

DNSSEC

Status unknown

Protects against DNS spoofing

Hosting

Cloudflare

ASN AS13335

104.16.68.56

Registrar

Registrar unknown

Lock status unknown 6 NS records
Expiry timeline
Today
+1 year
Domain expiry SSL expiry Danger zone (≤30 days)
Recommended actions
  • Renew the domain or enable auto-renewal to prevent accidental expiry
Registrar
Created July 27, 1987 (39 years, 3 months ago)
Expires July 31, 2026 (3 months)
Last Updated June 2, 2025
Name Servers a10-64.akam.net, a11-65.akam.net, a4-67.akam.net, a1-63.akam.net, a7-64.akam.net, a22-66.akam.net
Registrant Arizona State University
Hosting
IP Address 104.16.68.56
ASN AS13335 (CLOUDFLARENET - Cloudflare, Inc., US)
Provider Cloudflare
Data source: whois (0.7s)
A+
HTTP Probe Timing
Total 85 ms — DNS, TCP, TLS, TTFB, content transfer breakdown
PASS
DNS Lookup DNS Lookup — time to resolve the domain name to an IP address.
27 ms
TCP Connect TCP Connect — time to establish a TCP connection to the server.
16 ms
TLS Handshake TLS Handshake — time to complete the HTTPS encryption handshake.
23 ms
Time to First Byte Time to First Byte — how long the server takes to respond with the first byte of data.
85 ms
Total Time Total request time from DNS lookup through full response.
85 ms

Connection waterfall

DNS Lookup 27 ms TCP Connect 16 ms TLS Handshake 23 ms Server Processing 19 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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