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https://csun.edu

Infrastructure

· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
84
GRADE
B
FIX
1
REVIEW
3
PASS
5
INFO
0
Probed from New York, United Stated
302 Found
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

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.csun.edu/
200https://csun.edu/

Inconsistent — duplicate content risk

HTTP → HTTPS

302http://csun.edu/ → https://www.csun.edu/

Use 301 (permanent) instead of 302 (temporary)

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

Certificate validity

334
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, 19 ms lookup
PASS
1 A records, 19 ms lookup
Info::
Resolves to 1 IPv4 address(es)
Got: 130.166.238.195
Info::
Single A record — no DNS redundancy
Multiple A records provide failover if one server goes down.
Info::
No IPv6 (AAAA) records
Info::
4 nameserver(s) configured
Got: ns-1357.awsdns-41.org, ns-1745.awsdns-26.co.uk, ns-49.awsdns-06.com, ns-894.awsdns-47.net
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
Info::
DNS resolution time: 19 ms
Got: 19 ms
A130.166.238.195
AAAA—
CNAME—
NSns-1357.awsdns-41.org, ns-1745.awsdns-26.co.uk, ns-49.awsdns-06.com, ns-894.awsdns-47.net
MX
10 mxa-00186201.gslb.pphosted.com
10 mxb-00186201.gslb.pphosted.com
TXT
1GV6YTHKBEPK7O11DVQ2W28FU9GI2LT2T9IEP4M8T
MA/sGTFNlXY1XKtBCJ7r815Watz+Nf70Qeu6qSgErcKYr3rJmuW/0NbafKxfbCh82vo1TvlIzrI2nUEj...
MS=ms33515436
_acme-challenge.w2.csun.edu.=lU6pwZn06CkQCsPi247sUZZ1vsGSQ3JUzgthh2YR_ow
_acme-challenge.w2.csun.edu.lU6pwZn06CkQCsPi247sUZZ1vsGSQ3JUzgthh2YR_ow
_github-challenge-CSUN-IT.csun.edu.=4d9e0bb59b
_github-challenge-CSUN-IT.www.csun.edu.=35450860f7
adobe-idp-site-verification=3a0fe2fe45dceb0480d9fc5bfe3526b740cac4607514c1bb2d49...
adobe-sign-verification=a408c47cff5e57a342c403fac8d12891
airtable-verification=b6d719390110f1286b6a122278b3bb62
amazonses:2Mz7VkMxUB4F0BCrjIFxWXi+eBwt5kKVPaPJq ow1haU=
apple-domain-verification=4WgM3h9XboN5frX5
brevo-code:5d331c4366a863df651e6e341acd8f3a
docusign=0b68d1f2-76ec-4a83-bf32-438224f6d73b
docusign=8e6dd401-953d-4016-933d-bfd914caa8a8
e2ma-verification=qzegb
e2ma-verification=u2ggb
facebook-domain-verification=w5x9pcyiplntbag7sd91muye8jp2sj
google-site-verification=9uif3DKT-j_AtPnSv9208xkPZ0aGx5quI14tT048GRU
google-site-verification=JIl_-FhsVC6rQF1ZnYVf6QWpzErgJ2yfRmvx0Gm4OiQ
google-site-verification=X9LDcy1DM6yIN80WbG9KBv5RECBNuHExlXhIRi4hmEY
google-site-verification=danbuHqBv6KA-4L7wN2HssxBRGeJQZUVp9_fyvms-lM
google-site-verification=grpO32hwTZ4xfhqrsTGNe1dFvN98krHldki5z5-IgPY
google-site-verification=v3EbdTQHlpCBuPfXTwEBAtBHek_Km9kP7n_ZooUzKYU
jamf-site-verification=DRNuAQ93vs5Ixg2kd0mm-Q
kuqn25bq1hmn1250setvghlgj1
onetrust-domain-verification=6d28bb411f45464580d57feff592c5da
openai-domain-verification=dv-99OeDSBPwSObPN7XLMgiop6w
pardot_54022_*=b5ec6f4925ee893396e720c4e296634312af7a7eeee1f81f3d5e1a578ed09522
sending_domain54022=2aa9670b7da4d5891c8dd0540ae5e54e285a897ce2a1d11b64df16ebbe01...
smartsheet-site-validation=Jz2G6FyvBzH3Iepd6Hq--6P_zg0iiEdD
v=msv1 t=953B945F-7814-4967-B740-15F9A5A77610
SPF v=spf1 include:_spf-a.csun.edu include:_spf-a1.csun.edu include:_spf-b.csun.edu ...
CAALookup not available with standard resolver
Resolved in 19 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
1 redirect(s), 462 ms total
PASS
1 redirect(s), 462 ms total
Info::
Single redirect
Got: https://csun.edu → https://www.csun.edu/ (302)
Info::
WWW normalization redirect
Info::
Uses 302 (temporary) redirect
If permanent, use 301 instead.
Got: https://csun.edu

https://csun.edu

235 ms · HTTP/1.0

302

https://www.csun.edu/

227 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://csun.edu302235 msHTTP/1.0BigIP
2https://www.csun.edu/200227 msHTTP/1.1nginx

See the visual redirect chain in the HTTP Probe tab →

If permanent, use 301 instead.

Why this matters

302 (Found) is for genuinely temporary redirects — if this redirect is permanent, switch to 301 to preserve SEO equity.

Learn more ▾

Search engines treat 302 as temporary, keeping the original URL indexed and not transferring full link equity to the destination. Use 301 (Moved Permanently) for permanent redirects (HTTP→HTTPS, www-vs-non-www, URL restructures).

Source: Google Search Central

A+
Crawlability
robots.txt present, sitemap with 501 URLs
PASS
robots.txt present, sitemap with 501 URLs
Info::
robots.txt is present
Got: 2231 bytes
Info::
sitemap.xml is present
Info::
sitemap.xml is valid XML
Info::
sitemap.xml contains 501 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 2231 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: *
Crawl-delay: 10
# CSS, JS, Images
Allow: /misc/*.css$
Allow: /misc/*.css?
Allow: /misc/*.js$
Allow: /misc/*.js?
Allow: /misc/*.gif
Allow: /misc/*.jpg
Allow: /misc/*.jpeg
Allow: /misc/*.png
Allow: /modules/*.css$
Allow: /modules/*.css?
Allow: /modules/*.js$
Allow: /modules/*.js?
Allow: /modules/*.gif
Allow: /modules/*.jpg
Allow: /modules/*.jpeg
Allow: /modules/*.png
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: /themes/*.css$
Allow: /themes/*.css?
Allow: /themes/*.js$
Allow: /themes/*.js?
Allow: /themes/*.gif
Allow: /themes/*.jpg
Allow: /themes/*.jpeg
Allow: /themes/*.png
# Directories
Disallow: /includes/
Disallow: /misc/
Disallow: /modules/
Disallow: /profiles/
Disallow: /scripts/
Disallow: /themes/
# Files
Disallow: /CHANGELOG.txt
Disallow: /cron.php
Disallow: /INSTALL.mysql.txt
Disallow: /INSTALL.pgsql.txt
Disallow: /INSTALL.sqlite.txt
Disallow: /install.php
Disallow: /INSTALL.txt
Disallow: /LICENSE.txt
Disallow: /MAINTAINERS.txt
Disallow: /update.php
Disallow: /UPGRADE.txt
Disallow: /xmlrpc.php
# 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/
# Paths (no clean URLs)
Disallow: /?q=admin/
Disallow: /?q=comment/reply/
Disallow: /?q=filter/tips/
Disallow: /?q=node/add/
Disallow: /?q=search/
Disallow: /?q=user/password/
Disallow: /?q=user/register/
Disallow: /?q=user/login/
Disallow: /?q=user/logout/
Disallow: /sites/default/files/900-19.pdf
sitemap.xml 200 OK
Type URL Set URLs 501 entries Valid XML Yes
Sample URLs:
A+
Domain Intelligence
csun.edu — 38 years, 7 months old, hosted on CENIC-2152 - CENIC, US
PASS
csun.edu — 38 years, 7 months old, hosted on CENIC-2152 - CENIC, US
Info::
Domain registered until Jul 31, 2026 (3 months remaining)
Info::
Hosting: CENIC-2152 - CENIC, US
Got: AS2152
Domain expiry

45 days

July 31, 2026

SSL certificate

334 days

Issued by Internet2

Domain age

38 years, 7 months

Registered March 31, 1988

DNSSEC

Status unknown

Protects against DNS spoofing

Hosting

CENIC-2152 - CENIC, US

ASN AS2152

130.166.238.195

Registrar

Registrar unknown

Lock status unknown 4 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 March 31, 1988 (38 years, 7 months ago)
Expires July 31, 2026 (3 months)
Last Updated October 30, 2023
Name Servers ns-1745.awsdns-26.co.uk, ns-49.awsdns-06.com, ns-1357.awsdns-41.org, ns-894.awsdns-47.net
Registrant California State University, Northridge
Hosting
IP Address 130.166.238.195
ASN AS2152 (CENIC-2152 - CENIC, US)
Provider CENIC-2152 - CENIC, US
Data source: whois (0.3s)
A+
HTTP Probe Timing
Total 207 ms — DNS, TCP, TLS, TTFB, content transfer breakdown
PASS
DNS Lookup DNS Lookup — time to resolve the domain name to an IP address.
4 ms
TCP Connect TCP Connect — time to establish a TCP connection to the server.
66 ms
TLS Handshake TLS Handshake — time to complete the HTTPS encryption handshake.
71 ms
Time to First Byte Time to First Byte — how long the server takes to respond with the first byte of data.
207 ms
Total Time Total request time from DNS lookup through full response.
208 ms

Connection waterfall

DNS Lookup 4 ms TCP Connect 66 ms TLS Handshake 71 ms Server Processing 66 ms Content Transfer 0 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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