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https://missouri.edu

Infrastructure

· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
90
GRADE
A
FIX
0
REVIEW
2
PASS
7
INFO
0
Probed from Sao Paulo, Brazil
200 OK
Checks
9
7 PASS 2 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
TLS Certificate Expiry & Recommendations
46 days until leaf cert expires — 4 issues to address
REVIEW

Certificate validity

46
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
A
DNS Records
4 A records, 1421 ms lookup
PASS
4 A records, 1421 ms lookup
Info::
Resolves to 4 IPv4 address(es)
Got: 151.101.66.216, 151.101.2.216, 151.101.130.216, 151.101.194.216
Info::
No IPv6 (AAAA) records
Info::
2 nameserver(s) configured
Got: ns10002.missouri.edu, ns10001.missouri.edu
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
Warning::
DNS resolution is slow (1421 ms)
Slow DNS adds latency to every page load. Consider a faster DNS provider.
Got: 1421 ms
A151.101.66.216, 151.101.2.216, 151.101.130.216, 151.101.194.216
AAAA—
CNAME—
NSns10002.missouri.edu, ns10001.missouri.edu
MX
0 missouri-edu.mail.protection.outlook.com
TXT
google-site-verification=xWzOfYjgGLc4QMQtVAs_WFVjfxChboZ1DOSTqsg--Zg
twilio-domain-verification=7dcf14db1c79e46f6df84063315adfb0
jamf-site-verification=nGLBnyPAqwQm5X-K2Bx8Hw
google-site-verification=Sx3ji_qBDczezm1CQ7Ca_-M76idJ4TxZx0SsbEh8xBo
status-page-domain-verification=ddfchbnhmcfh
ReleaseWLIDNamespace=true
SPF v=spf1 ip4:134.124.45.0/24 ip4:134.124.47.0/24 ip4:134.193.44.0/24 ip4:134.193.1...
mVqRqxoHuh6PIbyQYmc9RJtqLhqMcTtQrBvFGqmkUhadtuCJJ7AA6xzR6Bbrb4WLCv/811uUKnfkKPCh...
bfd6gtbys96tysxhc8tb21d37c80mxgd
_globalsign-domain-verification=uRkE5N13_v0lzWB6RAfxI_Z3_F2lVyPlFm_5XlmY6W
ms-domain-verification=5d25e4ae-ca7d-4e30-a768-50bce23b6d26
adobe-idp-site-verification=b66ca1be-338c-4e1a-9ca7-d64a29d7caf1
MS=ms73767506
gP2kv47P4aPKsdVsBB8eVSAWh3JDoOGVoUhxzZCCamWdnMGJpJfnJbyqYe/mDr+091K1R9O3KOfrNcrL...
bw=IQtVmjyB+R4E1yyruMeaZ1qJgL4X8yfnaOL/k405Nh+Q
smartsheet-site-validation=GsC1AwkpvvGbOWta15dzkOkX_PZy-u-L
apple-domain-verification=gQl_ceGDQGCux_jOju2QlnVvMh0afEKwkJBPH9buUHs
google-site-verification=2eZMaG9vYhVJ3jaSTKR-43WYSzRqq2NcgOfB_Rbxkr4
_globalsign-domain-verification=lrQXiZCDHmxIvz-Cg4HIzuL3uIfKMoszyEBkhWPdUr
apple-domain-verification=mOLUcj9cshyzBbEm
CAALookup not available with standard resolver
Resolved in 1421 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
No redirects — direct access
PASS
No redirects — direct access
Info::
No redirects — direct access
Got: https://missouri.edu

https://missouri.edu

157 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://missouri.edu200157 msHTTP/1.1
A+
Crawlability
robots.txt present, sitemap with 50 URLs
PASS
robots.txt present, sitemap with 50 URLs
Info::
robots.txt is present
Got: 2005 bytes
Info::
sitemap.xml is present
Info::
sitemap.xml is valid XML
Info::
sitemap.xml contains 50 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 2005 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.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.xml 200 OK
Type URL Set URLs 50 entries Valid XML Yes
Sample URLs:
A+
URL Variants
www/non-www, trailing slash, HTTP→HTTPS
PASS
www/non-www, trailing slash, HTTP→HTTPS
Info::
www/non-www redirect configured correctly (preferred: non-www)
Info::
HTTP correctly 301-redirects to HTTPS

www / non-www

301https://www.missouri.edu/
200https://missouri.edu/

Preferred variant: non-www

HTTP → HTTPS

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

Consistent

A+
Domain Intelligence
missouri.edu — 38 years, 10 months old, hosted on Fastly
PASS
missouri.edu — 38 years, 10 months old, hosted on Fastly
Info::
Domain registered until Jul 31, 2027 (1 years, 3 months remaining)
Info::
Hosting: Fastly
Got: AS54113
Domain expiry

379 days

July 31, 2027

SSL certificate

46 days

Issued by Let's Encrypt

Domain age

38 years, 10 months

Registered December 22, 1987

DNSSEC

Status unknown

Protects against DNS spoofing

Hosting

Fastly

ASN AS54113

151.101.2.216

Registrar

Registrar unknown

Lock status unknown 2 NS records
Expiry timeline
Today
+1 year
Domain expiry SSL expiry Danger zone (≤30 days)
Registrar
Created December 22, 1987 (38 years, 10 months ago)
Expires July 31, 2027 (1 years, 3 months)
Last Updated January 29, 2026
Name Servers ns10002.missouri.edu, ns10001.missouri.edu
Registrant University of Missouri - Columbia
Hosting
IP Address 151.101.2.216
ASN AS54113 (FASTLY - Fastly, Inc., US)
Provider Fastly
Data source: whois (1.1s)
A+
HTTP Probe Timing
Total 164 ms — DNS, TCP, TLS, TTFB, content transfer breakdown
PASS
DNS Lookup DNS Lookup — time to resolve the domain name to an IP address.
152 ms
TCP Connect TCP Connect — time to establish a TCP connection to the server.
1 ms
TLS Handshake TLS Handshake — time to complete the HTTPS encryption handshake.
5 ms
Time to First Byte Time to First Byte — how long the server takes to respond with the first byte of data.
161 ms
Total Time Total request time from DNS lookup through full response.
164 ms

Connection waterfall

DNS Lookup 152 ms TCP Connect 1 ms TLS Handshake 5 ms Server Processing 3 ms Content Transfer 4 ms
A+
CDN & Delivery
Fastly (HIT, HIT)
PASS
Fastly (HIT, HIT)
Info::
Site is served via Fastly CDN
Got: x-served-by: cache-iad-kiad7000144-IAD, cache-gru-sbgr1930057-GRU
Info::
CDN cache status: HIT, HIT
CDN Detected: Fastly
Provider Fastly Cache Status HIT, HIT Evidence x-served-by: cache-iad-kiad7000144-IAD, cache-gru-sbgr1930057-GRU
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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