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https://ncsu.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
5
PASS
3
INFO
0
Probed from Singapore, Singapore
301 Moved Permanently
Checks
9
3 PASS 5 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.

B
Redirect Chain
1 redirect(s), 1258 ms total
REVIEW
1 redirect(s), 1258 ms total
Info::
Single redirect
Got: https://ncsu.edu → https://www.ncsu.edu/ (301)
Info::
WWW normalization redirect
Warning::
Redirect overhead: 1258 ms total
Got: 1258 ms

https://ncsu.edu

954 ms · HTTP/1.1

301

https://www.ncsu.edu/

304 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://ncsu.edu301954 msHTTP/1.1
2https://www.ncsu.edu/200304 msHTTP/1.1Apache

See the visual redirect chain in the HTTP Probe tab →

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

C
URL Variants
Action
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
Warning::
HTTP→HTTPS redirect uses 302 instead of 301
Got: 302 temporary redirect Expected: 301 permanent redirect

www / non-www

200https://www.ncsu.edu/
200https://ncsu.edu/

Inconsistent — duplicate content risk

HTTP → HTTPS

302http://ncsu.edu/ → https://ncsu.edu/

Use 301 (permanent) instead of 302 (temporary)

B
HTTP Probe Timing
Total 947 ms — DNS, TCP, TLS, TTFB, content transfer breakdown
REVIEW
DNS Lookup DNS Lookup — time to resolve the domain name to an IP address.
246 ms
TCP Connect TCP Connect — time to establish a TCP connection to the server.
232 ms
TLS Handshake TLS Handshake — time to complete the HTTPS encryption handshake.
237 ms
Time to First Byte Time to First Byte — how long the server takes to respond with the first byte of data.
947 ms
Total Time Total request time from DNS lookup through full response.
947 ms

Connection waterfall

DNS Lookup 246 ms TCP Connect 232 ms TLS Handshake 237 ms Server Processing 232 ms Content Transfer 0 ms
B
TLS Certificate Expiry & Recommendations
318 days until leaf cert expires — 3 issues to address
REVIEW

Certificate validity

318
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, 1434 ms lookup
PASS
1 A records, 1434 ms lookup
Info::
Resolves to 1 IPv4 address(es)
Got: 152.1.28.6
Info::
Single A record — no DNS redundancy
Multiple A records provide failover if one server goes down.
Info::
No IPv6 (AAAA) records
Info::
3 nameserver(s) configured
Got: ed21.ddi.ncsu.edu, ed11.ddi.ncsu.edu, ed31.ddi.ncsu.edu
Info::
5 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 (1434 ms)
Slow DNS adds latency to every page load. Consider a faster DNS provider.
Got: 1434 ms
A152.1.28.6
AAAA—
CNAME—
NSed21.ddi.ncsu.edu, ed11.ddi.ncsu.edu, ed31.ddi.ncsu.edu
MX
1 aspmx.l.google.com
5 alt1.aspmx.l.google.com
5 alt2.aspmx.l.google.com
10 aspmx2.googlemail.com
10 aspmx3.googlemail.com
TXT
ZOOM_verify_xaupIqPhR3Otpfu2GrVbRw
ZOOM_verify_eBNFkZURTKygnlOzwoNIAg
adobe-sign-verification=ff3d12ffa594e9b1b874e5ca99fe059
apple-domain-verification=0HCcH8788oEcUMnl
docusign=b70acf41-fd87-4671-b09a-d144841b186d
cisco-ci-domain-verification=17a6b38a10ab00c1b74dfa5b63708d40669b8e06d186efcf865...
pardot886933=d7a12894c79a63cf30405e13b84e34f2dbc018e9dc56b974b7063b3cf33f42b1
e2ma-verification=f01fb
smartsheet-site-validation=v8NuR3lJL_Ux8Du4iJWz3l8Pzy-zAEPH
atlassian-domain-verification=vt8Ao7xKGpfrytuOOOFZPG71DdTY4mgvpalS3qY36AaloLj6uZ...
hcp-domain-verification=64aad95d5bc2f83f4baba5a904459a7794e2f2148f60fb38b2b8a247...
dell-technologies-domain-verification=ncsu.edu_99788ba3-b416-4c9c-b4aa-cfff17a18...
airtable-verification=d5fcf3c3f135f86a0ea86cf70b14c342
e2ma-verification=ckngb
iContact1397826
MS=ms60612378
jamf-site-verification=Lxnk44i6FEzE5URftrwNQQ
mandrill_verify.SzmYMqdpdC74nYHmxbK3SA
mgverify=928f52da74e943227cbf055dc737ae286782b7e3634c3118e3aeb70c6fa6b947
iContact1085472
canva-site-verification=7YnDvK5mV9osAsb-ewjODg
yahoo-verification-key=zgMeMs9YX16XZJ80nklEbz0N3fzsOKRl1pi7RUrodK4=
MS=ms40114657
MS=ms67450719
google-site-verification=-sGs9P7zU0BsRkM5yb--xumCcgskOE9_p1qfMguyytM
adobe-idp-site-verification=857cf10e-f4b6-4787-8c2d-daca282631a6
"adobe-idp-site-verification=857cf10e-f4b6-4787-8c2d-daca282631a6"
MS=ms39026538
_globalsign-domain-verification=LfgPuNnZOviHJVkLDsAnTjpDsFtY_T0pkBgmNG2dZs
google-site-verification=zpOJisMErr5tC_fNh6al1BD8HkOqmhplHdMzzMfmg7c
google-site-verification=6bvpMeakuf7CEAbHedtDNXCflM83kVch0JZC5OT6mn4
google-site-verification=bximt6BCGebkrnnGkg4ujSG6doD1P9ZtFgpxDjyM_xg
SPF v=spf1 mx include:_spf.google.com include:e2ma.net ?all
google-site-verification=BKm8MgDetL35BOkH_kKybEeLDxluCcRk-A5pQXbd2RU
CAALookup not available with standard resolver
Resolved in 1434 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+
Crawlability
robots.txt present, sitemap with 1 URLs
PASS
robots.txt present, sitemap with 1 URLs
Info::
robots.txt is present
Got: 113 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 113 B Sitemaps referenced 1 User-agents * Blocking No — crawling allowed
User-agent: *
Disallow: /wp-admin/
Allow: /wp-admin/admin-ajax.php

Sitemap: https://www.ncsu.edu/wp-sitemap.xml
sitemap.xml 200 OK
Type Sitemap Index URLs 1 entries Valid XML Yes
Child Sitemaps:
A+
Domain Intelligence
ncsu.edu — 39 years, 7 months old, hosted on NCSU - North Carolina State University, US
PASS
ncsu.edu — 39 years, 7 months old, hosted on NCSU - North Carolina State University, US
Info::
Domain registered until Jul 31, 2028 (2 years, 3 months remaining)
Info::
Hosting: NCSU - North Carolina State University, US
Got: AS11442
Domain expiry

776 days

July 31, 2028

SSL certificate

318 days

Issued by Internet2

Domain age

39 years, 7 months

Registered April 16, 1987

DNSSEC

Status unknown

Protects against DNS spoofing

Hosting

NCSU - North Carolina State University, US

ASN AS11442

152.1.28.6

Registrar

Registrar unknown

Lock status unknown 3 NS records
Expiry timeline
Today
+1 year
Domain expiry SSL expiry Danger zone (≤30 days)
Registrar
Created April 16, 1987 (39 years, 7 months ago)
Expires July 31, 2028 (2 years, 3 months)
Last Updated June 4, 2025
Name Servers ed21.ddi.ncsu.edu, ed31.ddi.ncsu.edu, ed11.ddi.ncsu.edu
Registrant North Carolina State University
Hosting
IP Address 152.1.28.6
ASN AS11442 (NCSU - North Carolina State University, US)
Provider NCSU - North Carolina State University, US
Data source: whois (1.6s)
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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