Skip to content
https://ucsd.edu

Infrastructure

· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
86
GRADE
B
FIX
1
REVIEW
3
PASS
5
INFO
0
Probed from Madrid, Spain
200 OK
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.ucsd.edu/
200https://ucsd.edu/

Inconsistent — duplicate content risk

HTTP → HTTPS

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

Consistent

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

Certificate validity

355
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
  • 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
2 A records, 915 ms lookup
PASS
2 A records, 915 ms lookup
Info::
Resolves to 2 IPv4 address(es)
Got: 75.2.44.127, 99.83.137.54
Info::
No IPv6 (AAAA) records
Info::
3 nameserver(s) configured
Got: ns-auth2.ucsd.edu, ns-auth3.ucsd.edu, ns-auth1.ucsd.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 (915 ms)
Slow DNS adds latency to every page load. Consider a faster DNS provider.
Got: 915 ms
A75.2.44.127, 99.83.137.54
AAAA—
CNAME—
NSns-auth2.ucsd.edu, ns-auth3.ucsd.edu, ns-auth1.ucsd.edu
MX
5 inbound.ucsd.edu
10 inbound.ucsd.edu
TXT
google-site-verification=7nRURM14Y77x1_qLyBUfzj6nfKsEZ4FzJE28WbE_BJU
e2ma-verification=99dfb
e2ma-verification=htwcb
e2ma-verification=ntffb
google-site-verification=A6IDqqCOkQZcPLlmFMbHSmA3HPmvK5tcQHXl_GlUQzc
e2ma-verification=vvhfb
e2ma-verification=cbveb
e2ma-verification=mfhfb
e2ma-verification=o7efb
e2ma-verification=imffb
parallels-domain-verification=c5d1772aebcd4caabe0279e83a1af8d1b0e94ddc904d4f0abe...
e2ma-verification=jmffb
atlassian-sending-domain-verification=426ed84b-d1f0-4350-958b-343f16639435
e2ma-verification=fx3cb
e2ma-verification=pprep
brevo-code:b1414e0a234265a2faa294058248ae06
e2ma-verification=dpreb
e2ma-verification=4qffb
e2ma-verification=v4gfb
e2ma-verification=19mfb
autodesk-domain-verification=Vsxupb6YzoE7JCUVEsjb
atlassian-domain-verification=fJMZvZQHrDqzlqGrsMs6OyWAlFbvSDrT7mBm6oICHO6zw0P6z3...
e2ma-verification=n8qeb
e2ma-verification=n2hfb
e2ma-verification=6aefb
e2ma-verification=59dfb
e2ma-verification=72peb
e2ma-verification=a14cb
dtm-domain-verification=bDWWq_739B4xoYaw055J1gB_5aImnlcm-xOWaZjvWTA
e2ma-verification=szhfb
e2ma-verification=2l0cb
asv=f6b91b79ba467a96e4c78c42f5a46dea
e2ma-verification=7dqeb
airtable-verification=6b11904e9898b36ec674b100da86c5cd
e2ma-verification=fupeb
e2ma-verification=wzgfb
e2ma-verification=j00bb
e2ma-verification=ppreb
autodesk-domain-verification=EdgpshV6_ajJ0dGNwBiY
2rp1l3eq8tgh3qfan4tb0icrmc
google-site-verification=n0uEz8RJrvsL0wmI2D5XsQ0WU3z20EaZESJnQIOGY4k
5t52g66v6e7mshpk6644mvs7ha
apple-domain-verification=jMoGw2Qc3OJSHurJ
e2ma-verification=k0hfb
e2ma-verification=vkffb
e2ma-verification=rwycb
docusign=6ed8bcc1-9514-4edd-b447-69e53565ce9f
google-site-verification=dCbfA6CBMfPnSVdR2J84hro6FQ9vF0IMWEkZDEv0ZFI
MS=ms78242454
atlassian-domain-verification=V6c3JpN4o8ecS6zdjpcbBoa6FaLQaHHbCQF0Y6HxyNlbckcLse...
apple-domain-verification=LSDHI5JPsxeGcXK4APeZ8GhHhalMuylZ8XxJ1-qPBQk
atlassian-domain-verification=9IuWihbdAcOtd/9Ta8jKHqDYvSkQyRqpB4t3GQIvqw4Y5iVrsa...
e2ma-verification=rj4bb
duo_sso_verification=HeEDV7uDb2Hyc481LzR704wzt4keOjPMUAlRaqpu6bpX9Qfo3h6EQf4meXT...
e2ma-verification=l3ncb
atlassian-sending-domain-verification=ef7c2b00-f5a4-44d3-a2e9-9b605f769179
e2ma-verification=2lffb
e2ma-verification=43gfb
e2ma-verification=lahfb
e2ma-verification=w0seb
facebook-domain-verification=vfwg0cvk3jy7xw2jouecsfbv5xhyuh
SPF v=spf1 include:spf.ucsd.edu include:e2ma.net ip4:148.163.151.62 ip4:148.163.155....
e2ma-verification=53gfb
CAALookup not available with standard resolver
Resolved in 915 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://ucsd.edu

https://ucsd.edu

621 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://ucsd.edu200621 msHTTP/1.1Apache/2.4.62 (Red Hat Enterprise Linux)
A+
Crawlability
robots.txt present, sitemap with 40 URLs
PASS
robots.txt present, sitemap with 40 URLs
Info::
robots.txt is present
Got: 106 bytes
Info::
sitemap.xml is present
Info::
sitemap.xml is valid XML
Info::
sitemap.xml contains 40 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 106 B Sitemaps referenced 0 User-agents * Blocking No — crawling allowed
user-agent: *


# Block all google tag manager tracking links


Disallow: /*?_=*ga=

Disallow: /catalog/
sitemap.xml 200 OK
Type URL Set URLs 40 entries Valid XML Yes
Sample URLs:
A+
Domain Intelligence
ucsd.edu — 40 years, 11 months old, hosted on AWS
PASS
ucsd.edu — 40 years, 11 months old, hosted on AWS
Info::
Domain registered until Jul 31, 2028 (2 years, 3 months remaining)
Info::
Hosting: AWS
Got: AS16509
Domain expiry

747 days

July 31, 2028

SSL certificate

355 days

Issued by Internet2

Domain age

40 years, 11 months

Registered December 9, 1985

DNSSEC

Status unknown

Protects against DNS spoofing

Hosting

AWS

ASN AS16509

75.2.44.127

Registrar

Registrar unknown

Lock status unknown 3 NS records
Expiry timeline
Today
+1 year
Domain expiry SSL expiry Danger zone (≤30 days)
Registrar
Created December 9, 1985 (40 years, 11 months ago)
Expires July 31, 2028 (2 years, 3 months)
Last Updated July 10, 2025
Name Servers ns-auth1.ucsd.edu, ns-auth2.ucsd.edu, ns-auth3.ucsd.edu
Registrant University of California at San Diego
Hosting
IP Address 75.2.44.127
ASN AS16509 (AMAZON-02 - Amazon.com, Inc., US)
Provider AWS
Data source: whois (0.7s)
A
HTTP Probe Timing
Total 643 ms — DNS, TCP, TLS, TTFB, content transfer breakdown
PASS
DNS Lookup DNS Lookup — time to resolve the domain name to an IP address.
17 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.
465 ms
Time to First Byte Time to First Byte — how long the server takes to respond with the first byte of data.
643 ms
Total Time Total request time from DNS lookup through full response.
644 ms

Connection waterfall

DNS Lookup 17 ms TCP Connect 1 ms TLS Handshake 465 ms Server Processing 159 ms Content Transfer 1 ms
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.

Send Feedback