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https://olemiss.edu

Infrastructure

· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
86
GRADE
B
FIX
2
REVIEW
1
PASS
6
INFO
0
Probed from Santa Clara, United States
200 OK
Checks
9
6 PASS 1 REVIEW 2 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: 2620:38:c000:120::3
Info::
IPv6 connection error
Got: dial tcp6 [2620:38:c000:120::3]:443: connect: network is unreachable
IPv6 Misconfigured
AAAA Records 2620:38:c000:120::3 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)

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.

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

Certificate validity

248
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, 114 ms lookup
PASS
1 A records, 114 ms lookup
Info::
Resolves to 1 IPv4 address(es)
Got: 130.74.120.3
Info::
Single A record — no DNS redundancy
Multiple A records provide failover if one server goes down.
Info::
Has 1 IPv6 (AAAA) record(s)
Got: 2620:38:c000:120::3
Info::
3 nameserver(s) configured
Got: dns0.ncl.ac.uk, ns1.olemiss.edu, ns2.olemiss.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
Info::
DNS resolution time: 114 ms
Got: 114 ms
A130.74.120.3
AAAA2620:38:c000:120::3
CNAME—
NSdns0.ncl.ac.uk, ns1.olemiss.edu, ns2.olemiss.edu
MX
10 olemiss-edu.mail.protection.outlook.com
TXT
9P51a/mYHdmfpxocxgWtBbNof9UfhFDUZ3uGx6FjwMq+xr/GiUVHwrJ9vZpWH9uwyJY2CpPhxXR/eV/W...
facebook-domain-verification=9wg9m9owz20te65n4u485q75of0p0s
sending_domain867471=35af8a6d5af8d8ff5d9e52ddee0f6fe49eba4ac64fa1073e626bc762214...
google-site-verification=nSegnFTCIBN0bBjtQIOuDjOdsVM2xGSAVDfdsP-4kW4
SPF v=spf1 ip4:130.74.120.20 ip4:130.74.7.68 include:spf.protection.outlook.com ip4:...
atlassian-domain-verification=l90iADOKvd/bQv2AqBvLK0XDEbksyttuFbWJ8bFEHITC98rGQw...
MS=D947158831AD6398A2083D1BC309903849E5C150
canva-site-verification=1N0ziegmfuVb48vAi5hz0w
CAALookup not available with standard resolver
Resolved in 114 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.

A+
Redirect Chain
No redirects — direct access
PASS
No redirects — direct access
Info::
No redirects — direct access
Got: https://olemiss.edu

https://olemiss.edu

212 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://olemiss.edu200212 msHTTP/1.1Apache
A+
Crawlability
robots.txt present, sitemap with 2140 URLs
PASS
robots.txt present, sitemap with 2140 URLs
Info::
robots.txt is present
Got: 297 bytes
Info::
sitemap.xml is present
Info::
sitemap.xml is valid XML
Info::
sitemap.xml contains 2140 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 297 B Sitemaps referenced 0 User-agents * Blocking No — crawling allowed
User-agent: *

Disallow: /_base-assets/

Disallow: /_cms/

Disallow: /_content_blocks/

Disallow: /_files/

Disallow: /_optional_callout_blocks/

Disallow: /_program_sock_blocks/

Disallow: /_settings/

Disallow: /_test/

Disallow: /departments/it/testing/

Disallow: /assets/

Disallow: /cgi-bin/
sitemap.xml 200 OK
Type URL Set URLs 2140 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.olemiss.edu/
200https://olemiss.edu/

Preferred variant: non-www

HTTP → HTTPS

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

Consistent

A+
Domain Intelligence
olemiss.edu — 38 years old, hosted on OLEMISSS - University of Mississippi, US
PASS
olemiss.edu — 38 years old, hosted on OLEMISSS - University of Mississippi, US
Info::
Domain registered until Jul 31, 2026 (3 months remaining)
Info::
Hosting: OLEMISSS - University of Mississippi, US
Got: AS25656
Domain expiry

47 days

July 31, 2026

SSL certificate

248 days

Issued by Internet2

Domain age

38 years

Registered October 19, 1988

DNSSEC

Status unknown

Protects against DNS spoofing

Hosting

OLEMISSS - University of Mississippi, US

ASN AS25656

130.74.120.3

Registrar

Registrar unknown

Lock status unknown 2 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 October 19, 1988 (38 years ago)
Expires July 31, 2026 (3 months)
Last Updated April 10, 2026
Name Servers ns1.olemiss.edu, ns2.olemiss.edu
Registrant University of Mississippi
Hosting
IP Address 130.74.120.3
ASN AS25656 (OLEMISSS - University of Mississippi, US)
Provider OLEMISSS - University of Mississippi, US
Data source: whois (0.4s)
A+
HTTP Probe Timing
Total 316 ms — DNS, TCP, TLS, TTFB, content transfer breakdown
PASS
DNS Lookup DNS Lookup — time to resolve the domain name to an IP address.
113 ms
TCP Connect TCP Connect — time to establish a TCP connection to the server.
50 ms
TLS Handshake TLS Handshake — time to complete the HTTPS encryption handshake.
53 ms
Time to First Byte Time to First Byte — how long the server takes to respond with the first byte of data.
267 ms
Total Time Total request time from DNS lookup through full response.
316 ms

Connection waterfall

DNS Lookup 113 ms TCP Connect 50 ms TLS Handshake 53 ms Server Processing 52 ms Content Transfer 50 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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