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Infrastructure

· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
85
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

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.sjsu.edu/
200https://sjsu.edu/

Inconsistent — duplicate content risk

HTTP → HTTPS

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

Use 301 (permanent) instead of 302 (temporary)

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

Certificate validity

345
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, 1650 ms lookup
PASS
1 A records, 1650 ms lookup
Info::
Resolves to 1 IPv4 address(es)
Got: 130.65.218.11
Info::
Single A record — no DNS redundancy
Multiple A records provide failover if one server goes down.
Info::
No IPv6 (AAAA) records
Info::
6 nameserver(s) configured
Got: adns1.ucsc.edu, sjs-mh-site-ib-extdns2.sjsu.edu, adns2.ucsc.edu, ns4.cenic.org, ns-a.sjsu.edu, ns-b.sjsu.edu
Info::
7 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 (1650 ms)
Slow DNS adds latency to every page load. Consider a faster DNS provider.
Got: 1650 ms
A130.65.218.11
AAAA—
CNAME—
NSadns1.ucsc.edu, sjs-mh-site-ib-extdns2.sjsu.edu, adns2.ucsc.edu, ns4.cenic.org, ns-a.sjsu.edu, ns-b.sjsu.edu
MX
10 aspmx.l.google.com
20 alt1.aspmx.l.google.com
20 alt2.aspmx.l.google.com
30 aspmx4.googlemail.com
30 aspmx3.googlemail.com
30 aspmx5.googlemail.com
30 aspmx2.googlemail.com
TXT
jamf-site-verification=GCHsmuS9oSzQ_hVSC83cAg
MS=0A62800322FB6661B33ED6EC070BD56CBDF177F6
docusign=09d7f56d-8fb0-4ecd-b65b-cee6505ee482
adobe-idp-site-verification=17da3c68-bc4e-45e1-b25a-7577b44c8eed
sophos-domain-verification=080cee7df11d19270ca675713135f1d70cce7b1a2877ef564ead9...
google-site-verification=zd15JC-LM3xJUTgcJKFhZBzUdIUWTBeg7PiapeDyceE
google-site-verification=uMJLbo4wH5C1HeeIH5pceMd8OwHqkPedb7UsGLacNQ8
pardot300271=a815880d4057841ea3ce10947fe622571850ed2cc0f02e54d0a233d564bdb6c6
ZOOM_verify_r3SkRx5YRweokJLbNNezqw
pardot300271=dc52ca2b4a7bfe7e993be731d6ffbf283f04442dae5c0a42d029315c7f4045f8
pardot300271=25a72977b41628c43d5c04e4a287dcf1d55a174ac76283d6fb0340a1cbadb74d
GDTNQ59VRBDDIE00CQ4AMIDO09
pardot300271=856a5dcf55d901a24f37b909b8670db270cdecc3635ed506782c365e8d93e56e
openai-domain-verification=dv-Teo8D7CyzcKzN7KIboLxgZk2
MC9B20CH8YBYE5RKEMGG4BYYIW24LFICEQPBV2N87
pardot300271=f4169d9600800e7d02131ecc5bd028dc880ee89f79eb6e5d81768cffec88e0cb
T9A7J3VFMT8HYV9Q2TECB1BV9PPNZL77VUDUSWSZE
SPF v=spf1 ip4:130.65.255.152 ip4:130.65.255.153 ip4:130.65.255.154 ip4:68.232.142.2...
pardot300271=0166ce937654a6e3406afc69022c4ddb985a265126981e075a09e4162449a38b
pardot300271=bf4834cce35ce4ad016873be5f69b6916f3411f87c89843b8d24759e2173a2be
Ta8+zAD1cyKqbnNE0nesHsrpNgOsnknT867ESocH19E=
e2ma-verification=muchb
google-site-verification=yAQZOULB041vLJyU52KKzd3KSt_d61sfVuIpFiuT1sw
apple-domain-verification=yILaVWe1OqyRNidH
amazonses:fFWr6lw+eiiwmvC1Ag0JJeztq8qH2s7gYUM7fC/7qaA=
smartsheet-site-validation=8IbZxaCOe9AxG923KPK1HeQNcGeBlVx-
pardot300271=b5179790c2ed23efc5e39a07486b6b833b3579bcd33f163c8f6101524b154741
pardot300271=37d4bada2ca58cdc1f4c05837bffeae1ca9c3d4d56287350dd5e9d2711151866
apple-domain-verification=dzaNH5ZeVkVvKquy
pardot300271=27f338f7ec7b99c1dac1eb1d6c299aa24081c2c97d01215755be9d9925c6f0f2
ReleaseWLIDNamespace=true
pardot300271=c70d72445884b7b59f384fc988670e15e126dc3721c5c36910fed41770884100
status-page-domain-verification=rdxbrrs8wlnk
CAALookup not available with standard resolver
Resolved in 1650 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
No redirects — direct access
PASS
No redirects — direct access
Info::
No redirects — direct access
Got: https://sjsu.edu

https://sjsu.edu

487 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://sjsu.edu200487 msHTTP/1.1Apache
A+
Crawlability
robots.txt present, sitemap with 226 URLs
PASS
robots.txt present, sitemap with 226 URLs
Info::
robots.txt is present
Got: 679 bytes
Info::
sitemap.xml is present
Info::
sitemap.xml is valid XML
Info::
sitemap.xml contains 226 entries
Info::
Sitemap index with 226 child sitemaps
Info::
robots.txt references sitemap
robots.txt 200 OK
Size 679 B Sitemaps referenced 1 User-agents * Blocking No — crawling allowed
#########################################
# Welcome to San Jose State University
#
# Note: Please do not over load the servers
# http://its.sjsu.edu            
#
User-agent: *
Disallow: /cgi-bin/
Disallow: /contact/
Disallow: /police/crime_reporting/crime_blotter/
Disallow: /police/docs/blotter/
Disallow: /atn/
Disallow: /ecampus/
Disallow: /mae/
Disallow: /resources/
Disallow: /computereng/
Disallow: /provost/budget/flg/docs/
Disallow: /drc/
Disallow: /hrtm/
Disallow: /typeahead.js/
Disallow: /sjsuhome/assets/js/typeahead/
Disallow: /ldp/
Disallow: /gallery-pics/
Disallow: /*/gallery-pics/
Disallow: /logout/
# Site Map Listing
Sitemap: http://www.sjsu.edu/indexmap.txt
sitemap.xml 200 OK
Type Sitemap Index URLs 226 entries Valid XML Yes
Child Sitemaps:
A+
Domain Intelligence
sjsu.edu — 32 years, 9 months old, hosted on CENIC-2152 - CENIC, US
PASS
sjsu.edu — 32 years, 9 months old, hosted on CENIC-2152 - CENIC, US
Info::
Domain registered until Jul 31, 2027 (1 years, 3 months remaining)
Info::
Hosting: CENIC-2152 - CENIC, US
Got: AS2152
Domain expiry

412 days

July 31, 2027

SSL certificate

345 days

Issued by Internet2

Domain age

32 years, 9 months

Registered December 20, 1993

DNSSEC

Status unknown

Protects against DNS spoofing

Hosting

CENIC-2152 - CENIC, US

ASN AS2152

130.65.218.11

Registrar

Registrar unknown

Lock status unknown 5 NS records
Expiry timeline
Today
+1 year
Domain expiry SSL expiry Danger zone (≤30 days)
Registrar
Created December 20, 1993 (32 years, 9 months ago)
Expires July 31, 2027 (1 years, 3 months)
Last Updated July 1, 2024
Name Servers ns-a.sjsu.edu, ns4.cenic.org, ns-b.sjsu.edu, adns2.ucsc.edu, adns1.ucsc.edu
Registrant San Jose State University
Hosting
IP Address 130.65.218.11
ASN AS2152 (CENIC-2152 - CENIC, US)
Provider CENIC-2152 - CENIC, US
Data source: whois (0.9s)
A
HTTP Probe Timing
Total 652 ms — DNS, TCP, TLS, TTFB, content transfer breakdown
PASS
DNS Lookup DNS Lookup — time to resolve the domain name to an IP address.
165 ms
TCP Connect TCP Connect — time to establish a TCP connection to the server.
158 ms
TLS Handshake TLS Handshake — time to complete the HTTPS encryption handshake.
167 ms
Time to First Byte Time to First Byte — how long the server takes to respond with the first byte of data.
652 ms
Total Time Total request time from DNS lookup through full response.
652 ms

Connection waterfall

DNS Lookup 165 ms TCP Connect 158 ms TLS Handshake 167 ms Server Processing 162 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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