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https://ua.edu

Infrastructure

· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
80
GRADE
B
FIX
1
REVIEW
2
PASS
6
INFO
0
Probed from Santa Clara, United States
301 Moved Permanently
Checks
9
6 PASS 2 REVIEW 1 FIX
F
IPv6 Readiness
Action
IPv6 records exist but unreachable
FIX
IPv6 records exist but unreachable
Warning::
IPv6 DNS records exist but server is not reachable
Having AAAA records but an unreachable server is worse than no AAAA — clients may experience delays before falling back to IPv4.
Got: 2620:12a:8001::2, 2620:12a:8000::2
Info::
IPv6 connection error
Got: dial tcp6 [2620:12a:8001::2]:443: connect: network is unreachable
IPv6 Misconfigured
AAAA Records 2620:12a:8001::2, 2620:12a:8000::2 Connection UNREACHABLE

Having AAAA records but an unreachable server is worse than no AAAA — clients may experience delays before falling back to IPv4.

Why this matters

Advertising IPv6 (AAAA records) without a reachable server means IPv6-preferring clients silently fail every connection.

Learn more ▾

Modern browsers prefer IPv6 if AAAA exists (Happy Eyeballs algorithm). If the IPv6 server isn't reachable, browsers fall back to IPv4 — but with seconds of added latency per request. Either fix IPv6 reachability or remove the AAAA records.

Source: RFC 8305 (Happy Eyeballs)

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.ua.edu/
200https://ua.edu/

Inconsistent — duplicate content risk

HTTP → HTTPS

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

Consistent

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

Certificate validity

60
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
1 A records, 372 ms lookup
PASS
1 A records, 372 ms lookup
Info::
Resolves to 1 IPv4 address(es)
Got: 23.185.0.2
Info::
Single A record — no DNS redundancy
Multiple A records provide failover if one server goes down.
Info::
Has 2 IPv6 (AAAA) record(s)
Got: 2620:12a:8001::2, 2620:12a:8000::2
Info::
3 nameserver(s) configured
Got: ext-dns1.ua.edu, ext-dns2.ua.edu, ext-dns3.ua.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 (372 ms)
Slow DNS adds latency to every page load. Consider a faster DNS provider.
Got: 372 ms
A23.185.0.2
AAAA2620:12a:8001::2, 2620:12a:8000::2
CNAME—
NSext-dns1.ua.edu, ext-dns2.ua.edu, ext-dns3.ua.edu
MX
0 ua-edu.mail.protection.outlook.com
TXT
cisco-ci-domain-verification=3241286cf7655dfcbbc3d342523dda4e5bfc774903cd3f254a0...
1password-site-verification=7ZIPKMXULVFNXAI2WBGSZPUAKY
e2ma-verification=kwrgb
ZOOM_verify_zN5PJbTNkkc89ElnIUem9Y
atlassian-domain-verification=Je5TpScQFRm61qKpzs4z0bF4OQoE6NG6ZkvB3GzIdZSrxOGylO...
sending_domain893691=73e2e035d3f11e9b0e22c790ac1f4c39b2d4e61520d29b4eaa505fa2725...
apple-domain-verification=RGidltRfYnyZxEpb
google-site-verification=18XUbhU3ZxP1BCWcVvVZfrzozej-b1Y86-UkryzwPR0
cursor-domain-verification-nr8mj8=h25Ouj1TDJQVvpDQEbSU9NcBD
e2ma-verification=jwrgb
Adobe-idp-site-verification=b1d15f60-dcef-4368-9a7a-de88cb925a90
jamf-site-verification=HDYibCAVyWUde9U3gjjm6g
brevo-code:59b3a18744d24f960bd78166f34f87c5
pardot893691=70c2503173da575c6e5919fa56719c124747cf2d0fc256970fd3f978d87d5191
NuVrzAw4ns6++QRuDishUUZfpJwCsBifD1tfklM6JRsVga9Sm4n52PhKpb+7EuKKfR2CAD1FTbS1jaTh...
pardot893691=996c5687b68f38b119a7fcf2454fc0bbe6ca0c5e3979f9a3071c2db0bce69159
openai-domain-verification=dv-OI3b491w9hl4UaC378QpjssP
google-site-verification=99moyfI3acwAs01H0xn5VJS5Rx_y1mwwxj1YYZmR_wU
canva-site-verification=bSdDkAFyBPKj6Qt0lDJsaA
e2ma-verification=eirfb
SPF v=spf1 include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email ~all
cursor-domain-verification-mzc3xx=9FebXkUsRxvcdYVYiOSlzV0EI
CAALookup not available with standard resolver
Resolved in 372 ms

Multiple A records provide failover if one server goes down.

Why this matters

Single A record means a single point of failure — if that IP goes down, your site is unreachable until DNS TTL expires.

Learn more ▾

Add multiple A records for round-robin failover, or use a managed DNS provider with health-checked failover (Route 53, Cloudflare, NS1). Short TTL (60-300s) lets clients recover faster on outages.

Source: SRE practice / DNS architecture

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), 237 ms total
PASS
1 redirect(s), 237 ms total
Info::
Single redirect
Got: https://ua.edu → https://www.ua.edu/ (301)
Info::
WWW normalization redirect

https://ua.edu

84 ms · HTTP/1.1

301

https://www.ua.edu/

153 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://ua.edu30184 msHTTP/1.1Pantheon
2https://www.ua.edu/200153 msHTTP/1.1nginx

See the visual redirect chain in the HTTP Probe tab →

A+
Crawlability
robots.txt present, sitemap with 1 URLs
PASS
robots.txt present, sitemap with 1 URLs
Info::
robots.txt is present
Got: 111 bytes
Info::
sitemap.xml is present
Info::
sitemap.xml is valid XML
Info::
sitemap.xml contains 1 entries
Info::
Sitemap index with 1 child sitemaps
Info::
robots.txt references sitemap
robots.txt 200 OK
Size 111 B Sitemaps referenced 1 User-agents * Blocking No — crawling allowed
User-agent: *
Disallow: /wp-admin/
Allow: /wp-admin/admin-ajax.php

Sitemap: https://www.ua.edu/wp-sitemap.xml
sitemap.xml 200 OK
Type Sitemap Index URLs 1 entries Valid XML Yes
Child Sitemaps:
A+
Domain Intelligence
ua.edu — 38 years, 5 months old, hosted on Fastly
PASS
ua.edu — 38 years, 5 months old, hosted on Fastly
Info::
Domain registered until Jul 31, 2027 (1 years, 3 months remaining)
Info::
Hosting: Fastly
Got: AS54113
Domain expiry

378 days

July 31, 2027

SSL certificate

60 days

Issued by Let's Encrypt

Domain age

38 years, 5 months

Registered May 12, 1988

DNSSEC

Status unknown

Protects against DNS spoofing

Hosting

Fastly

ASN AS54113

23.185.0.2

Registrar

Registrar unknown

Lock status unknown 3 NS records
Expiry timeline
Today
+1 year
Domain expiry SSL expiry Danger zone (≤30 days)
Registrar
Created May 12, 1988 (38 years, 5 months ago)
Expires July 31, 2027 (1 years, 3 months)
Last Updated August 6, 2025
Name Servers ext-dns2.ua.edu, ext-dns1.ua.edu, ext-dns3.ua.edu
Registrant University of Alabama
Hosting
IP Address 23.185.0.2
ASN AS54113 (FASTLY - Fastly, Inc., US)
Provider Fastly
Data source: whois (0.3s)
A+
HTTP Probe Timing
Total 146 ms — DNS, TCP, TLS, TTFB, content transfer breakdown
PASS
DNS Lookup DNS Lookup — time to resolve the domain name to an IP address.
127 ms
TCP Connect TCP Connect — time to establish a TCP connection to the server.
2 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.
146 ms
Total Time Total request time from DNS lookup through full response.
146 ms

Connection waterfall

DNS Lookup 127 ms TCP Connect 2 ms TLS Handshake 5 ms Server Processing 12 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-sjc1000103-SJC
Info::
CDN cache status: HIT
CDN Detected: Fastly
Provider Fastly Cache Status HIT Evidence x-served-by: cache-sjc1000103-SJC
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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